CN110991075A - Rapid exploration and evaluation method for metal mineral products - Google Patents
Rapid exploration and evaluation method for metal mineral products Download PDFInfo
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- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 82
- 239000011707 mineral Substances 0.000 title claims abstract description 82
- 238000011156 evaluation Methods 0.000 title claims abstract description 14
- 239000002184 metal Substances 0.000 title claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 12
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 44
- 238000011160 research Methods 0.000 claims abstract description 41
- 238000000034 method Methods 0.000 claims abstract description 39
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- 230000033558 biomineral tissue development Effects 0.000 claims description 46
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- 238000004458 analytical method Methods 0.000 claims description 22
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- 238000005516 engineering process Methods 0.000 claims description 11
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- 238000001228 spectrum Methods 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 8
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- 230000018109 developmental process Effects 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 claims description 5
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- 238000012360 testing method Methods 0.000 claims description 5
- 238000012795 verification Methods 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 4
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 claims description 4
- 230000001737 promoting effect Effects 0.000 claims description 2
- 230000003595 spectral effect Effects 0.000 claims description 2
- 230000005856 abnormality Effects 0.000 description 4
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Abstract
The invention discloses a metal mineral rapid exploration and evaluation method, which comprises the following steps: a: remote sensing interpretation of regional tectonic grids: the method comprises the steps of applying Landsat TM/ETM, Worldview-2, Aster and other satellite remote sensing data to perform digital image processing, making 1: 50-1: 25 ten thousand satellite remote sensing image maps, taking important basic geological problems related to ore formation as key points, developing linear and annular structure remote sensing interpretation, establishing a remote sensing area structure framework, and laying a foundation for research of area ore formation conditions and ore formation rules; the invention has the advantages of carrying out special multi-level remote sensing interpretation work aiming at the geological factors of the formation/control of the ores, carrying out special remote sensing ore searching model research and other works aiming at typical ore deposits and ore collection areas, and solves the problems that the special multi-level remote sensing interpretation work aiming at the geological factors of the formation/control of the ores, the special remote sensing ore searching model research and other works are not carried out aiming at the typical ore deposits and the ore collection areas.
Description
Technical Field
The invention relates to the technical field of geological mineral products, in particular to a method for quickly surveying and evaluating metal mineral products.
Background
The evaluation and detection of mineral resources are more directly dependent on the innovation of the technology, the deep understanding of the mineralization process can be realized through the technical progress, and the capability of searching for large mineral deposits is enhanced. Therefore, a new idea and a new method for metal mineral prospecting and prospecting are developed quickly, and the application of new technologies such as geophysical prospecting, chemical prospecting, hyperspectral and high-spatial-resolution remote sensing and digitization provides powerful technical support for the delineation of a target region of the prospecting, the positioning and prediction of blind ore bodies and the like.
The traditional remote sensing is mainly applied to interpretation of various scales in the aspect of geological prospecting, focuses on interpretation and analysis of geological conditions of formation/control such as geological structure grillage, rock stratum, magma rock and the like, and provides an important basic information and analysis research platform for rapid evaluation of mining areas along with the development of a high-resolution remote sensing technology.
At present, in western Kunlun regions, mineral prospecting works such as remote sensing, geophysical prospecting and chemical prospecting are carried out aiming at mineral deposits of different mineral species and different cause types, and some mineral prospecting results are obtained. However, due to the special natural geographical conditions of the west kunlun-pamil region, the application of some mineral exploration technologies in the region is limited. The physical exploration technology of a large-scale measuring instrument and the chemical exploration work which needs large-area regular shuttle sampling are limited by the complex terrain conditions of West Kunlun and are difficult to develop the advantages to achieve the purpose of quick exploration, so the remote sensing auxiliary prospecting technology becomes a good choice, particularly the remote sensing interpretation work of the predecessor in the West Kunlun-Pamier area is mainly based on basic geological survey, special multi-level remote sensing interpretation work aiming at formation/control geological factors is not carried out, and special remote sensing prospecting model research and other work aiming at typical ore deposits and ore collection areas is not carried out.
Disclosure of Invention
The invention aims to provide a method for rapidly surveying and evaluating metal minerals, which has the advantages of carrying out special multi-level remote sensing interpretation work aiming at geological factors of formation/control of minerals and carrying out special remote sensing prospecting model research and other work aiming at typical mineral deposits and mineral concentration areas, and solves the problems that no special multi-level remote sensing interpretation work is carried out aiming at the geological factors of formation/control of minerals, and no special remote sensing prospecting model research and other work is carried out aiming at the typical mineral deposits and the mineral concentration areas.
In order to achieve the purpose, the invention provides the following technical scheme: a metal mineral rapid exploration and evaluation method comprises the following steps:
a: remote sensing interpretation of regional tectonic grids: the method comprises the steps of applying Landsat TM/ETM, Worldview-2, Aster and other satellite remote sensing data to perform digital image processing, making 1: 50-1: 25 ten thousand satellite remote sensing image maps, taking important basic geological problems related to ore formation as key points, developing linear and annular structure remote sensing interpretation, establishing a remote sensing area structure framework, and laying a foundation for research of area ore formation conditions and ore formation rules;
b: remote sensing prospecting model development: on the basis of known typical ore deposit (point), remote sensing characteristic analysis of an ore collection area and extraction of mineralization alteration remote sensing abnormal information, a remote sensing ore finding model is respectively established for each main ore deposit type by taking the latest ore deposit theory as guidance and fully applying the research results of the area ore forming effect and the ore forming rule, and the area ore finding potential is analyzed;
c: and (3) delineating the target area of the regional materialization remote comprehensive prospecting: preliminarily delineating a remote sensing ore finding target area or an ore finding favorable section by using the established remote sensing ore finding model, and carrying out multi-element information superposition analysis by combining regional geophysical prospecting and chemical prospecting result data and using a GIS technology on the basis of the preliminarily delineating the remote sensing ore finding target area or the ore finding favorable section, and delineating the regional physicochemical remote comprehensive ore finding target area;
d: the ore-finding target area is preferably evaluated: taking a modern mineral forming theory as guidance, combining with predecessor results, optimizing the target area of the delineated area by physicochemical remote comprehensive mineral exploration, and combining with enterprises or geological exploration units to preferentially and quickly evaluate the target area;
e: finally, the system summarizes the work results of all the links, optimizes and integrates the technical method combination and the evaluation program suitable for delineating and quickly evaluating the target area of the ore exploration in different types of ore deposits in a physicochemical and remote manner under the condition of deep-cut mountain landscape, and constructs a technical method system for quickly and preferably evaluating the target area of the ore exploration.
Preferably, two important mineral exploration distant scenic areas, namely, a tasshcoul trunk and a black just-fork intersection, are selected in the step B, satellite remote sensing data such as Landsat TM/ETM, enter and the like are applied to carry out mineralization and alteration abnormal information extraction, remote sensing mineralization and alteration abnormal screening and grading related to mining in the areas are carried out, and a target mineral exploration area is defined.
Preferably, in the step B, for the important ore concentration area or the beneficial section of ore prospecting, a 1: 5 ten thousand or even larger scale remote sensing image is made by applying WorldView-2 and other high-level satellite remote sensing data, a detailed interpretation is carried out with ore-containing construction, a multilevel ore control construction, a mineralization zone and an alteration zone as the key points, and then, for different ore-forming types of deposit metamorphic iron ore and layer control lead-zinc ore, the ore-forming conditions, ore control factors, remote sensing image characteristics, remote sensing mineralization alteration abnormal characteristics and the like are comprehensively considered from known to unknown, and corresponding typical ore deposit remote sensing ore deposit prospecting models are respectively established.
Preferably, the known geological features and main mineralization and alteration types of the mineral deposit in the research area are firstly analyzed, then a satellite remote sensing image is used as a main information source, particularly high-resolution remote sensing data with the resolution ratio superior to 1 meter is applied, multi-level and multi-element remote sensing geological interpretation work mainly based on the high-resolution multi-spectral remote sensing data is promoted, and field reconnaissance, rock stratum units and typical altered mineral spectrum tests are carried out on the basis of remote sensing primary interpretation, so that the spectrum features of the mineralization and alteration zones related to the distribution of main altered minerals and image identification marks of the spectrum features are established.
Preferably, the structure and lithology interpretation is carried out in the whole area, information of ore formation/control rock, stratum and structure in a research area is extracted, spatial combination characteristics of the structure and the relation between the structure and mineral products are researched, and a remote sensing geological interpretation map is compiled.
Preferably, aiming at different alteration types of known mineral deposits (mineralization points), multiple image enhancement processing and superposition operation are carried out, an extraction method of the optimal remote sensing mineralization abnormality is determined, alteration information is extracted to the maximum extent, an abnormal area (zone) of the remote sensing mineralization alteration is defined, abnormality screening and grading are carried out, and meanwhile, a remote sensing abnormality image is compiled.
Preferably, after a field verification target is selected according to the interpretation result and the screened remote sensing abnormity, geological survey is carried out on the site, rock and ore samples are collected for identification and analysis, a research area remote sensing ore finding model is established and remote sensing evaluation of mineral resource potential is carried out by combining regional ore formation characteristics, typical ore deposit analysis and the work content, a batch of ore finding target areas are provided for subsequent mineral resource exploration, and a remote sensing ore finding prediction map is compiled.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention takes space remote sensing as a main means, on the basis of deeply understanding and comprehensively analyzing the obtained investigation and research results of geology, mineral products, physical exploration and the like in a working area, takes the latest result of western Kunlun structural research and a new mineral forming theory as guidance, firstly analyzes the geological characteristics and the main mineralization and alteration types of the known mineral deposit in the research area, then takes a satellite remote sensing image as a main information source to carry out field reconnaissance, rock stratum unit and typical alteration mineral spectrum test, develops structure and lithology interpretation in the whole area, extracts formation/control rock, stratum and structure information in the research area, researches the space combination characteristics of the structure and the relation with the mineral products, carries out a plurality of image enhancement processing and superposition operation aiming at different alteration types of the known mineral deposit (mineralization point), determines an optimal extraction method of the mineralization abnormity of remote sensing, extracts the alteration information to the utmost extent, and (3) delineating a remote sensing mineralization alteration abnormal area (zone), carrying out abnormal screening and grading, selecting a field verification target according to the interpretation result and the screened remote sensing abnormality, carrying out geological investigation on the site, collecting rock and ore samples for identification and analysis, establishing a remote sensing ore finding model of a research area and carrying out remote sensing evaluation of mineral resource potential by combining the regional ore formation characteristics, typical ore deposit analysis and the work content, and providing a batch of ore finding target areas for subsequent mineral resource exploration.
2. The invention has the advantages of carrying out special multi-level remote sensing interpretation work aiming at the geological factors of the formation/control of the ores, carrying out special remote sensing ore searching model research and other works aiming at typical ore deposits and ore collection areas, and solves the problems that the special multi-level remote sensing interpretation work aiming at the geological factors of the formation/control of the ores, the special remote sensing ore searching model research and other works are not carried out aiming at the typical ore deposits and the ore collection areas.
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FIG. 1 is a flow chart of a circuit of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, a method for rapidly surveying and evaluating metal minerals includes the following steps:
a: remote sensing interpretation of regional tectonic grids: the method comprises the steps of applying Landsat TM/ETM, Worldview-2, Aster and other satellite remote sensing data to perform digital image processing, making 1: 50-1: 25 ten thousand satellite remote sensing image maps, taking important basic geological problems related to ore formation as key points, developing linear and annular structure remote sensing interpretation, establishing a remote sensing area structure framework, and laying a foundation for research of area ore formation conditions and ore formation rules;
b: remote sensing prospecting model development: on the basis of known typical ore deposit (point), remote sensing characteristic analysis of an ore collection area and extraction of mineralization alteration remote sensing abnormal information, a remote sensing ore finding model is respectively established for each main ore deposit type by taking the latest ore deposit theory as guidance and fully applying the research results of the area ore forming effect and the ore forming rule, and the area ore finding potential is analyzed;
c: and (3) delineating the target area of the regional materialization remote comprehensive prospecting: preliminarily delineating a remote sensing ore finding target area or an ore finding favorable section by using the established remote sensing ore finding model, and carrying out multi-element information superposition analysis by combining regional geophysical prospecting and chemical prospecting result data and using a GIS technology on the basis of the preliminarily delineating the remote sensing ore finding target area or the ore finding favorable section, and delineating the regional physicochemical remote comprehensive ore finding target area;
d: the ore-finding target area is preferably evaluated: taking a modern mineral forming theory as guidance, combining with predecessor results, optimizing the target area of the delineated area by physicochemical remote comprehensive mineral exploration, and combining with enterprises or geological exploration units to preferentially and quickly evaluate the target area;
e: finally, the system summarizes the work results of all the links, optimizes and integrates the technical method combination and the evaluation program suitable for delineating and quickly evaluating the target area of the ore exploration in different types of ore deposits in a physicochemical and remote manner under the condition of deep-cut mountain landscape, and constructs a technical method system for quickly and preferably evaluating the target area of the ore exploration.
The first embodiment is as follows:
a metal mineral rapid exploration and evaluation method comprises the following steps:
a: remote sensing interpretation of regional tectonic grids: the method comprises the steps of applying Landsat TM/ETM, Worldview-2, Aster and other satellite remote sensing data to perform digital image processing, making 1: 50-1: 25 ten thousand satellite remote sensing image maps, taking important basic geological problems related to ore formation as key points, developing linear and annular structure remote sensing interpretation, establishing a remote sensing area structure framework, and laying a foundation for research of area ore formation conditions and ore formation rules;
b: remote sensing prospecting model development: on the basis of known typical ore deposit (point), remote sensing characteristic analysis of an ore collection area and extraction of mineralization alteration remote sensing abnormal information, a remote sensing ore finding model is respectively established for each main ore deposit type by taking the latest ore deposit theory as guidance and fully applying the research results of the area ore forming effect and the ore forming rule, and the area ore finding potential is analyzed;
c: and (3) delineating the target area of the regional materialization remote comprehensive prospecting: preliminarily delineating a remote sensing ore finding target area or an ore finding favorable section by using the established remote sensing ore finding model, and carrying out multi-element information superposition analysis by combining regional geophysical prospecting and chemical prospecting result data and using a GIS technology on the basis of the preliminarily delineating the remote sensing ore finding target area or the ore finding favorable section, and delineating the regional physicochemical remote comprehensive ore finding target area;
d: the ore-finding target area is preferably evaluated: taking a modern mineral forming theory as guidance, combining with predecessor results, optimizing the target area of the delineated area by physicochemical remote comprehensive mineral exploration, and combining with enterprises or geological exploration units to preferentially and quickly evaluate the target area;
e: finally, the system summarizes the work results of all the links, optimizes and integrates the technical method combination and the evaluation program suitable for delineating and quickly evaluating the target area of the ore exploration in different types of ore deposits in a physicochemical and remote manner under the condition of deep-cut mountain landscape, and constructs a technical method system for quickly and preferably evaluating the target area of the ore exploration.
Selecting two important ore finding distant scenic areas of the TashKurl trunk and the black just-fork intersection in the step B, extracting mineralization and alteration abnormal information by using satellite remote sensing data such as Landsat TM/ETM, enter and the like, screening and grading the remote sensing mineralization and alteration abnormal information related to ore formation in the areas, and delineating an ore finding target area.
In the step B, aiming at important ore concentration areas or beneficial ore exploration sections, a remote sensing image with a scale of 1: 5 ten thousand or even larger is made by applying high-content satellite remote sensing data such as WorldView-2 and the like, detailed interpretation is carried out by taking ore-containing construction, multi-level ore control construction, mineralization zones and alteration zones as key points, and then, corresponding typical ore deposit remote sensing ore exploration models are respectively established by comprehensively considering ore formation conditions, ore control factors, remote sensing image characteristics, remote sensing mineralization alteration abnormal characteristics and the like from known to unknown aiming at different ore formation types such as deposit alteration type iron ores and layer control type lead-zinc ores.
The method comprises the steps of firstly analyzing the geological features and main mineralization and alteration types of known mineral deposits in a research area, then using a satellite remote sensing image as a main information source, particularly applying high-resolution remote sensing data with the resolution ratio superior to 1 m, promoting multi-level and multi-element remote sensing geological interpretation work mainly based on the high-resolution multispectral remote sensing data, and carrying out field exploration, rock stratum unit and typical alteration mineral spectrum testing on the basis of remote sensing primary interpretation so as to establish the spectral features and image identification marks of mineralization and alteration zones related to the distribution of main alteration minerals.
And carrying out structure and lithology interpretation in the whole area, extracting formation/ore control rock, stratum and structure information of a research area, researching the space combination characteristics of the structure and the relation between the structure and mineral products, and compiling a remote sensing geological interpretation map.
Aiming at different alteration types of known mineral deposits (mineralization points), multiple image enhancement processing and superposition operation are carried out, an extraction method of the optimal remote sensing mineralization abnormity is determined, alteration information is extracted to the maximum extent, an abnormal area (zone) of the remote sensing mineralization alteration is defined, abnormity screening and grading are carried out, and meanwhile, a remote sensing abnormity image is compiled.
Selecting a field verification target according to the interpretation result and the screened remote sensing abnormity, carrying out geological survey on the site, collecting rock and ore samples for identification and analysis, establishing a remote sensing ore-finding model of a research area and carrying out remote sensing evaluation on the potential of mineral resources by combining regional ore-forming characteristics, typical ore deposit analysis and the work content, providing a batch of ore-finding target areas for subsequent mineral resource exploration, and compiling a remote sensing ore-finding prediction map.
Example two:
a metal mineral rapid exploration and evaluation method comprises the following steps:
a: remote sensing interpretation of regional tectonic grids: the method comprises the steps of applying Landsat TM/ETM, Worldview-2, Aster and other satellite remote sensing data to perform digital image processing, making 1: 50-1: 25 ten thousand satellite remote sensing image maps, taking important basic geological problems related to ore formation as key points, developing linear and annular structure remote sensing interpretation, establishing a remote sensing area structure framework, and laying a foundation for research of area ore formation conditions and ore formation rules;
b: remote sensing prospecting model development: on the basis of known typical ore deposit (point), remote sensing characteristic analysis of an ore collection area and extraction of mineralization alteration remote sensing abnormal information, a remote sensing ore finding model is respectively established for each main ore deposit type by taking the latest ore deposit theory as guidance and fully applying the research results of the area ore forming effect and the ore forming rule, and the area ore finding potential is analyzed;
c: and (3) delineating the target area of the regional materialization remote comprehensive prospecting: preliminarily delineating a remote sensing ore finding target area or an ore finding favorable section by using the established remote sensing ore finding model, and carrying out multi-element information superposition analysis by combining regional geophysical prospecting and chemical prospecting result data and using a GIS technology on the basis of the preliminarily delineating the remote sensing ore finding target area or the ore finding favorable section, and delineating the regional physicochemical remote comprehensive ore finding target area;
d: the ore-finding target area is preferably evaluated: taking a modern mineral forming theory as guidance, combining with predecessor results, optimizing the target area of the delineated area by physicochemical remote comprehensive mineral exploration, and combining with enterprises or geological exploration units to preferentially and quickly evaluate the target area;
e: finally, the system summarizes the work results of all the links, optimizes and integrates the technical method combination and the evaluation program suitable for delineating and quickly evaluating the target area of the ore exploration in different types of ore deposits in a physicochemical and remote manner under the condition of deep-cut mountain landscape, and constructs a technical method system for quickly and preferably evaluating the target area of the ore exploration.
Selecting two important ore finding distant scenic areas of the TashKurl trunk and the black just-fork intersection in the step B, extracting mineralization and alteration abnormal information by using satellite remote sensing data such as Landsat TM/ETM, enter and the like, screening and grading the remote sensing mineralization and alteration abnormal information related to ore formation in the areas, and delineating an ore finding target area.
In the step B, aiming at important ore concentration areas or beneficial ore exploration sections, a remote sensing image with a scale of 1: 5 ten thousand or even larger is made by applying high-content satellite remote sensing data such as WorldView-2 and the like, detailed interpretation is carried out by taking ore-containing construction, multi-level ore control construction, mineralization zones and alteration zones as key points, and then, corresponding typical ore deposit remote sensing ore exploration models are respectively established by comprehensively considering ore formation conditions, ore control factors, remote sensing image characteristics, remote sensing mineralization alteration abnormal characteristics and the like from known to unknown aiming at different ore formation types such as deposit alteration type iron ores and layer control type lead-zinc ores.
The method is mainly characterized in that space remote sensing is used as a main means, on the basis of deeply understanding and comprehensively analyzing the obtained investigation and research results of geology, mineral products, physical exploration and the like in a working area, the latest result of western Kunlun structural research and a new mineral forming theory are used as guidance, the known mineral deposit geological characteristics and main mineralization and alteration types in the research area are firstly analyzed, then a satellite remote sensing image is used as a main information source, particularly high-resolution remote sensing data with the resolution ratio superior to 1 m is applied, multi-level and multi-element remote sensing geological interpretation work mainly based on high-resolution multispectral remote sensing data is promoted, and field exploration, rock stratum units and typical alteration mineral spectrum tests are carried out on the basis of remote sensing primary interpretation, so that the spectrum characteristics of the mineralization and alteration zone related to main alteration mineral distribution and image identification marks of the spectrum characteristics are established. Based on this, two aspects of work are carried out: on one hand, carrying out structure and lithology interpretation in the whole area, extracting formation/ore control rock, stratum and structure information of a research area, researching the space combination characteristics of the structure and the relation between the structure and mineral products, and compiling a remote sensing geological interpretation map; on the other hand, aiming at different alteration types of known mineral deposits (mineralization points), multiple image enhancement processing and superposition calculation are carried out, an extraction method of the optimal remote sensing mineralization abnormity is determined, alteration information is extracted to the maximum extent, an abnormal area (zone) of the remote sensing mineralization alteration is defined, abnormity screening and grading are carried out, and meanwhile, a remote sensing abnormity image is compiled. And finally selecting a field verification target according to the interpretation result and the screened remote sensing abnormity, carrying out geological survey on the site, collecting rock and ore samples, carrying out identification analysis, establishing a remote sensing ore finding model of a research area and carrying out remote sensing evaluation on the potential of mineral resources by combining regional ore formation characteristics, typical ore deposit analysis and the work content, providing a batch of ore finding target areas for subsequent mineral resource exploration, and compiling a remote sensing ore finding prediction map.
In summary, the following steps: the method for rapidly surveying and evaluating the metal mineral products has the advantages of carrying out special multi-level remote sensing interpretation work aiming at the geological factors of formation/control of the mineral products, carrying out special remote sensing ore finding model research and other work aiming at typical mineral deposits and mineral concentration areas, and solves the problems that no special multi-level remote sensing interpretation work is carried out aiming at the geological factors of formation/control of the mineral products, and no special remote sensing ore finding model research and other work is carried out aiming at the typical mineral deposits and the mineral concentration areas.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A metal mineral rapid exploration and evaluation method is characterized by comprising the following steps:
a: remote sensing interpretation of regional tectonic grids: the method comprises the steps of applying Landsat TM/ETM, Worldview-2, Aster and other satellite remote sensing data to perform digital image processing, making 1: 50-1: 25 ten thousand satellite remote sensing image maps, taking important basic geological problems related to ore formation as key points, developing linear and annular structure remote sensing interpretation, establishing a remote sensing area structure framework, and laying a foundation for research of area ore formation conditions and ore formation rules;
b: remote sensing prospecting model development: on the basis of known typical ore deposit (point), remote sensing characteristic analysis of an ore collection area and extraction of mineralization alteration remote sensing abnormal information, a remote sensing ore finding model is respectively established for each main ore deposit type by taking the latest ore deposit theory as guidance and fully applying the research results of the area ore forming effect and the ore forming rule, and the area ore finding potential is analyzed;
c: and (3) delineating the target area of the regional materialization remote comprehensive prospecting: preliminarily delineating a remote sensing ore finding target area or an ore finding favorable section by using the established remote sensing ore finding model, and carrying out multi-element information superposition analysis by combining regional geophysical prospecting and chemical prospecting result data and using a GIS technology on the basis of the preliminarily delineating the remote sensing ore finding target area or the ore finding favorable section, and delineating the regional physicochemical remote comprehensive ore finding target area;
d: the ore-finding target area is preferably evaluated: taking a modern mineral forming theory as guidance, combining with predecessor results, optimizing the target area of the delineated area by physicochemical remote comprehensive mineral exploration, and combining with enterprises or geological exploration units to preferentially and quickly evaluate the target area;
e: finally, the system summarizes the work results of all the links, optimizes and integrates the technical method combination and the evaluation program suitable for delineating and quickly evaluating the target area of the ore exploration in different types of ore deposits in a physicochemical and remote manner under the condition of deep-cut mountain landscape, and constructs a technical method system for quickly and preferably evaluating the target area of the ore exploration.
2. The method of claim 1, wherein the method comprises the steps of: selecting two important ore finding distant scenic areas of the TashKurl trunk and the black just-fork intersection in the step B, extracting mineralization and alteration abnormal information by using satellite remote sensing data such as Landsat TM/ETM, enter and the like, screening and grading the remote sensing mineralization and alteration abnormal information related to ore formation in the areas, and delineating an ore finding target area.
3. The method of claim 1, wherein the method comprises the steps of: in the step B, aiming at important ore concentration areas or beneficial ore exploration sections, a remote sensing image with a scale of 1: 5 ten thousand or even larger is made by applying high-content satellite remote sensing data such as WorldView-2 and the like, detailed interpretation is carried out by taking ore-containing construction, multi-level ore control construction, mineralization zones and alteration zones as key points, and then, aiming at different ore forming types such as deposit metamorphic iron ore and layer control lead-zinc ore, the corresponding typical ore deposit remote sensing exploration models are respectively established by comprehensively considering the ore forming conditions, the ore control factors, the remote sensing image characteristics, the remote sensing mineralization alteration abnormal characteristics and the like from known to unknown.
4. The method of claim 1, wherein the method comprises the steps of: the method comprises the steps of firstly analyzing known mineral deposit geological characteristics and main mineralization and alteration types in a research area, then using a satellite remote sensing image as a main information source, particularly applying high-resolution remote sensing data with the resolution ratio superior to 1 m, promoting multilayer and multivariate remote sensing geological interpretation work mainly based on the high-resolution multispectral remote sensing data, and carrying out field reconnaissance, rock stratum unit and typical alteration mineral spectrum test on the basis of remote sensing primary interpretation, thereby establishing spectral characteristics of mineralization and alteration zone related to main alteration mineral distribution and image identification marks thereof.
5. The method of claim 1, wherein the method comprises the steps of: and carrying out structure and lithology interpretation in the whole area, extracting formation/ore control rock, stratum and structure information of a research area, researching the space combination characteristics of the structure and the relation between the structure and mineral products, and compiling a remote sensing geological interpretation map.
6. The method of claim 1, wherein the method comprises the steps of: aiming at different alteration types of known mineral deposits (mineralization points), the method for extracting the optimal remote sensing mineralization abnormity is determined by carrying out multiple image enhancement processing and superposition operation on the multiple images, alteration information is extracted to the maximum extent, an abnormal area (zone) of the remote sensing mineralization alteration is defined, abnormity screening and grading are carried out, and meanwhile, a remote sensing abnormity image is compiled.
7. The method of claim 1, wherein the method comprises the steps of: the method comprises the steps of selecting a field verification target according to interpretation results and screened remote sensing anomalies, carrying out geological survey on the site, collecting rock and ore samples, carrying out identification analysis, establishing a remote sensing ore finding model of a research area and carrying out remote sensing evaluation on the potential of mineral resources by combining regional ore formation characteristics, typical ore deposit analysis and the work content, providing a batch of ore finding target areas for subsequent mineral resource exploration, and compiling a remote sensing ore finding prediction map.
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| CN113946950A (en) * | 2021-10-12 | 2022-01-18 | 青海省第三地质勘查院 | Method for rapidly delineating target area of gold prospecting |
| CN114612779A (en) * | 2022-03-14 | 2022-06-10 | 中科海慧（北京）科技有限公司 | Geological mineral exploration method based on space-time big data analysis |
| CN114646682A (en) * | 2022-03-18 | 2022-06-21 | 西藏巨龙铜业有限公司 | Ore finding method based on trace elements of green cord stone |
| CN116593407A (en) * | 2023-07-17 | 2023-08-15 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Rare earth metal mineral rapid investigation device and method |
| CN117746242A (en) * | 2023-12-20 | 2024-03-22 | 中国科学院空天信息创新研究院 | Remote sensing prospecting method, device, equipment and medium based on multi-metal deposit remote sensing prospecting model |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112379453A (en) * | 2020-11-04 | 2021-02-19 | 西安建筑科技大学 | Method, system, equipment and application for surveying sedimentary carbonate lead zinc ore in traffic-difficult area |
| CN112379453B (en) * | 2020-11-04 | 2024-05-17 | 西安建筑科技大学 | Method, system, equipment and application for surveying sedimentary carbonate lead-zinc ore in difficult traffic area |
| CN113095681A (en) * | 2021-04-13 | 2021-07-09 | 中国煤炭地质总局勘查研究总院 | Mining exploration and development area evaluation method and device |
| CN113095681B (en) * | 2021-04-13 | 2024-05-14 | 中国煤炭地质总局勘查研究总院 | Mining investigation and development area evaluation method and device |
| CN113946950A (en) * | 2021-10-12 | 2022-01-18 | 青海省第三地质勘查院 | Method for rapidly delineating target area of gold prospecting |
| CN113946950B (en) * | 2021-10-12 | 2023-03-14 | 青海省第三地质勘查院 | Method for rapidly delineating target area of gold prospecting |
| CN114612779A (en) * | 2022-03-14 | 2022-06-10 | 中科海慧（北京）科技有限公司 | Geological mineral exploration method based on space-time big data analysis |
| CN114646682A (en) * | 2022-03-18 | 2022-06-21 | 西藏巨龙铜业有限公司 | Ore finding method based on trace elements of green cord stone |
| CN114646682B (en) * | 2022-03-18 | 2023-09-08 | 西藏巨龙铜业有限公司 | Mineral prospecting method based on trace elements of green-curtain stone |
| CN116593407A (en) * | 2023-07-17 | 2023-08-15 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Rare earth metal mineral rapid investigation device and method |
| CN116593407B (en) * | 2023-07-17 | 2023-09-29 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Rare earth metal mineral rapid investigation device and method |
| CN117746242A (en) * | 2023-12-20 | 2024-03-22 | 中国科学院空天信息创新研究院 | Remote sensing prospecting method, device, equipment and medium based on multi-metal deposit remote sensing prospecting model |
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