CN104730592A - Method for searching deeply buried solid sylvite ore deposit - Google Patents

Method for searching deeply buried solid sylvite ore deposit Download PDF

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CN104730592A
CN104730592A CN201510020917.2A CN201510020917A CN104730592A CN 104730592 A CN104730592 A CN 104730592A CN 201510020917 A CN201510020917 A CN 201510020917A CN 104730592 A CN104730592 A CN 104730592A
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ore
sample
potassium
drilling well
drilling
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CN104730592B (en
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刘成林
徐海明
王春连
叶建中
王立成
赵艳军
沈立建
樊莉
王笛
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Institute of Mineral Resources of Chinese Academy of Geological Sciences
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Abstract

The invention discloses a method for searching a deeply buried solid sylvite ore deposit, belongs to the mineral development technology, and comprises the following steps of (1) arranging exploration drilling positions: finding a anticline structure in a prediction sylvite layer exploration area, determining a highest point and a second highest point along the axial direction of the anticline structure, and distributing drill holes; (2) drilling and sampling: sampling an ore sample after drilling, wherein the used drilling fluid does not contain potassium ions; (3) and (3) judging: observing an ore sample obtained by drilling, and judging whether a salt vein containing potassium is met and a potassium-containing index appears; if the result observed in the step (3) shows the potassium-containing index, the drilling can be continued; if no potassium indicator is displayed, terminating drilling and replacing a potash mine exploratory area to carry out the steps (1) (2), (3); wherein the step (3) of observing the ore sample obtained by drilling refers to observing the drilling mud sample, the rock debris sample and/or the core rock vein sample. The method can effectively reduce the ore finding cost and improve the ore finding success rate of the cryptomelane.

Description

Find the method in buried solid potassium salt mineral deposit
Technical field
The present invention relates to mineral exploration and exploitation technology, particularly relate to the method finding buried solid potassium salt mineral deposit.
Background technology
China is a large agricultural country, and populous, grain-production is fundamental to the building of the country, nitrogen, phosphorus, the potash fertilizer importance in agricultural production, foundation at the beginning of just by state leader and scientific worker pay attention to.Because China ploughs extensive potassium deficiency, a large amount of potash fertilizer demand relies on import, and external potash fertilizer monopolist has been certain about our weakness, handles potash fertilizer price arbitrarily, 2007 the end of the year ~ 2008, potash fertilizer increases to 600 beautiful yuan/ton from 200 beautiful yuan/ton.Greatly increase the weight of the burden of peasant, directly affects China's agricultural and national economy sustainable development.Therefore, the resource provision of sylvite mineral products will, based on domestic, just be unlikely under one's control.At present, China has verified the relative 1,300,000,000 populous nation's demands of Potash Resources, is an utterly inadequate amount.The explored sylvite reserves of China are mainly distributed in Chaidamu Basin, Qinghai Province 11 Modern Salt Lakes, total geologic reserve 7.06 hundred million tons (the continuous equality of Zheng, 2006ab); Next is lowland salt lake, Xinjiang Lop Nur sieve north, preliminary delineation KCl geologic reserve 2.5 hundred million tons (king removes power etc., 2001); Be 35, Tibet special type (potassium lithium boron) the total geologic reserve of salt lake KCl and stock number 0.47 hundred million ton again.The national KCl geologic reserve of above rough estimates about 9.9 hundred million tons, amounts to K 2o is 6.25 hundred million tons (the continuous equality of Zheng, 2006ab).In addition, Yunnan Meng Yejing Paleocene epoch sylvite ore (geologic reserve 1,402 ten thousand tons) (according to geology and minerals bureau of Yunnan Province) is China's solid industrial sylvite deposit in only ancient times.Thin layer langbeinite and glaserite (0.26 ~ 1.32m) are arranged at Eocene series top, Qianjiang, Hubei, nearly 2,000 ten thousand tons of stock number (prospecting development research institute of Jianghan Petroleum Administration Bureau, 1984), but buried depth reaches 3000 ~ 4000m.At present, Qinghai Chaerhan salt lakes sylvite production capacity has reached 2,500,000 tons, and its east mining area resource is closely exhausted, does not now just strangle mining area, beach in large-scale development western part, and estimation can ensure to produce nearly 20 ~ 30 years.National investment company's Lop Nur sylvite project 1,200,000 tons of potassium sulphate fertilizer commissioning run tests in 2008, plan that 2011 yearly capacities reach 1,500,000 tons, within 2015, reach and produce 3000000 tons, potash fertilizer per year.Lop Nur will become potassium sulfate production base the biggest in the world when the time comes, effectively can alleviate China's potash fertilizer short supply state, but such production scale may stablize lasting 20 ~ 30 years, and when the time comes, potassium resource is also by exhaustion.Therefore, basing on our country and look for potassium, is the important guarantee keeping China's agricultural steady development, otherwise, the short supply state of China's potash fertilizer and be limited by the external situation controlled for a long time and will be difficult to change.
The terrestrial facies scale contrast of domestic and international sylvite deposit sea and mining development, and China looks for potassium to put into practice and advanced research shows, only obtains the important breakthrough that marine facies look for potassium, fundamentally could reverse the passive situation of China's severe potassium deficiency for a long time.China's ancient marine facies Evaporate basin epoch are remote, and from the Sinian Period, in the Cambrian period, in the Ordovician period, the Carboniferous period, in Triassic period, all there are deposition Jurassic period, the Cretaceous period to Paleogene Period; Salt deposit thickness is from tens of rice to upper km (Yuan Jianqi, 1960,1961,1980,1988,1995,2007; The continuous equality of Zheng, 1974,1976,1978,1986a, 2005,2006ab, 2008,2009; Zheng MP et al., 2010; Liu Qun etc., 1987,1994,1997).These data show, and marine evaporite cording has huge holding ore space, for marine facies sylvite exploration breakthrough has established material base.In view of China's agricultural development is to the great demand of potash fertilizer, only look for potassium to obtain important breakthrough at Ancient Times in China marine bed, the sylvite that just fundamentally can solve China is self-supporting.And due to Tectonics of China environment with there is notable difference abroad, external existing marine facies potash formation is also not exclusively applicable to Chinese marine basin and looks for potassium.Therefore, set up and be applicable to the marine facies potash formation of Chinese structural setting, propose China's marine facies and look for potassium new approaches, make sylvite and reconnoitre new technology to instruct marine facies sylvite to reconnoitre imperative.
Current China has found out that there are marine facies or sea-land interbedding facies salt deposit or bittern output in 9 epoch: the Sinian Period Denying Formation, lower Middle Cambrian series, lower Middle Ordovician series, (C1)Culm, Lower Permian Series (bittern), the Triassic system, Upper-Middle Jurassic, late Cretacic and Paleogene System.Wherein Denying Formation (Chuan Nan), lower Middle Cambrian series (Sichuan and Tarim Basin), lower Middle Ordovician series (Northern Shaanxi basin), (C1)Culm (in tower basin).Because tectonic activities is subject to the strong impact of Lu Lu collision-Himalayan movement, Paleozoic Era marine facies saliferous sedimentary formation buried depth is huge, synantexis destroys strong, and Meso-Cenozoic basins, formed from them, develop to the overall process of termination, continue to be subject to tectono-dynamic action, broken, distortion and buried occurs.Compared with external marine facies sylvite sedimentary basin, the ancient Marine Basin scale of China is less, and the later stage changes greatly, and bury comparatively dark-very dark, these look for potassium to bring technical barrier to China, and drilling cost is very large simultaneously.
To sum up, be necessary to develop the technology of the buried sylvite ore of the searching obtaining potassium ore deposit information comparatively accurately at lower cost, drilling for looking for potassium provides scientific basis.
Summary of the invention
The present invention is according to the blank in above-mentioned field and demand, and provide a kind of effective reduction to look for ore deposit mortality and look for the method for the buried sylvite deposit of the searching of ore deposit cost, the solution of the present invention is as follows:
Find a method for buried sylvite deposit, step is as follows:
(1) lay and reconnoitre drilling well position: in prediction sylvite ore bed exploratory area, find arch structure, the axle trend along described arch structure is determined peak and secondary high point and lays boring;
(2) sample ore is got in drilling well:
Bury prediction sylvite ore bed exploratory area that is shallow or crop out in saliferous system, drilling well extremely or through behind shallow table stratum starts to get sample ore;
In the prediction sylvite ore bed exploratory area that there is Quaternary Strata, drilling well starts to get sample ore after penetrating Quaternary Strata;
Drilling well drilling fluid used is not containing potassium ion;
(3) judge: sample ore is observed, judge whether to run into containing sylvite arteries and veins and occur containing potassium index;
If the result that step (3) is observed demonstrates containing potassium index, can continue down to creep into; If do not shown containing potassium index, stop drilling well and change sylvite ore bed exploratory area holding step (1) (2), (3);
Described demonstrating refers at least observe one of following several groups of situations containing potassium index:
First group: in continuous sampling process, potassium content >=1% in mud sample; Magnesium in ultimate analysis display mud, strontium, boron, lithium ion and potassium ion present positive correlation to be changed, and magnesium ion >=2%; Potassium ion >=1% in core, chip sample;
Second group: observe in core, chip sample and occur sylvine, and content is more than 1%;
3rd group: observe in core, chip sample and occur carnallite, and content is more than 1%;
4th group: observe in core, chip sample and occur syngenite, and content is more than 1%;
5th group: observe that core contains vein, potassium ion >=1%; And be greater than more than 10 times, country rock.
Described analysis refers to x-ray analysis, electron probing analysis and/or quantitative chemical analysis.
Described drilling well starts to get sample ore and refers to through after Quaternary system after penetrating Quaternary Strata, often go deep into 90-100 rice and carry out getting 1 sub-sampling.
Described drilling well starts to get sample ore and refers to through after Quaternary system after penetrating Quaternary Strata, often go deep into 70-80 rice and carry out getting 1 sub-sampling.
Described drilling well starts to get sample ore and refers to through after Quaternary system after penetrating Quaternary Strata, often go deep into 50-60 rice and carry out getting 1 sub-sampling.
Described drilling well starts to get sample ore and refers to through after Quaternary system after penetrating Quaternary Strata, often go deep into 30 ~ 40 meters and carry out getting 1 sub-sampling.
Described drilling well starts to get sample ore and refers to through after Quaternary system after penetrating Quaternary Strata, often go deep into 6 ~ 20 meters and carry out getting 1 sub-sampling.
Described drilling well starts to get sample ore and refers to through after Quaternary system after penetrating Quaternary Strata, often go deep into 1-5 rice and carry out getting 1 sub-sampling.
If described prediction sylvite ore bed exploratory area is in basins in China area, then the degree of depth of sample ore is got in drilling well is 1000-3000 rice.
Above-mentioned either method is finding the application in buried sylvite deposit.
Solid potassium salt is imbedded in underground deep (1000-5000 rice), due to the effect of ground temperature, stratum static pressure and tectonic stress, very easily there is plastic flow in ore bed, to the tectonic position flowing that pressure is little, and the usual saddle axis portion of this tectonic position or zone of fracture.Because anticline is squeezed, tensional fault stratum (Fig. 1)-tomography moving towards spread along it is formed in axle portion, the rock salt containing potassium of small part Plastic Flow will under the crunch effect of underground, on alter in the tomography pouring into anticline top, such sylvite ore information also just nature is brought to (Fig. 2) more shallow stratum from deep.This kind of information stratum normally mud stone, silty, muddy limestone, white clouds matter mud stone, the creaming mudstone etc. containing sylvite.Water-resisting property, the sealing of this rocks are fine, on the one hand, and the sylvite ore bed of protection bottom, on the other hand, also easily preserving containing sylvite arteries and veins in it.
The present invention is in conjunction with the rule such as Basin Tectonic, deposition, boring and tomography are joined together, anticlinal high in prediction sylvite ore bed exploratory area is laid and is reconnoitred drilling well, punch Quaternary system to Neogene system---namely go up overburden formation, general 1000-2000 rice, tomography generally can not penetrate the loose or weak consolidating stratum of Quaternary system, therefore, this section of degree of depth needs probing, after drilling well penetrates Quaternary system, starts to get sample ore and holds observation.This technology is called (D+F) (Drill boring+Fault tomography) " penetrating " method by the present invention.Fig. 3 shows the ultimate principle of this technology, namely when drilling well gets to Quaternary system to Neogene system, if there is sylvite ore bed in this exploratory area, then this drilling depth is approximately the half of the prediction Ore bearing stratum degree of depth, according to the geology characteristics of motion, can bore at this drilling depth and meet containing sylvite arteries and veins (Fig. 4).Then the salt mine sample of drilling well gained is observed, judge whether occur containing potassium index in tomography, thus the ore-bearing potential of prediction or confirmation deep formation.Deep formation debates index as table (1) containing sentencing of potassium ore deposit.
Because sylvite ore is buried very dark usually, it is very high that zone of interest cost is got in all prospect pits, by method of the present invention, if find above-mentioned containing potassium Indexes Abnormality, can continue down to creep into, if do not find that Indexes Abnormality shows, then should stop drilling well.Move certain distance cloth apertured position again, carry on and creep into, utilize D+F " to penetrate " technology and continue to observe, if find that index reaches containing sylvite ore, then continue to creep into.If index does not also reach requirement, then should stop creeping into, the one-tenth potassium distant view in this exploratory area that needs to reappraise, or temporarily abandon drilling well preliminry basic research.Can be reduced by method of the present invention and look for ore deposit cost, improve and look for ore deposit accuracy rate.
In well-sampling process, after Quaternary Strata, those skilled in the art can according to geological condition, and how much rice is often crept in setting is carried out primary sample.Such as, often go deep into 100,90,80,70,60,50,40,30,20,10,5 or 1 meters and carry out 1 sub-sampling, thus farthest ore deposit accuracy rate is looked in raising.
Usually, large containing potassium ore bed covers Cenozoic strata (i.e. Quaternary Strata) thickness in basins in China, general 1000-3000 rice, especially in eastern region, the finite thickness of tensional fault earth penetrating, drilling hole need get to top or the top that layer is worn in tensional fault, and what just can obtain deep contains ore deposit information.
In the present invention, the foundation of the prediction Ore bearing stratum degree of depth is as follows: the salt ore bed (and water body of dissolved solid sylvite) containing potassium Plastic Flow can occur under High Pressure, on the one hand, may pierce through overlying strata and on alter to comparatively shallow stratum even may crop out, on the other hand, potassium ore bed or the salt deposit containing potassium also can be altered to compared with filling in shallow stratum crack or the salt arteries and veins that precipitates into containing potassium with the water body of salt arteries and veins form or molten sylvite on existing tomography.Therefore, if be squeezed distortion stratum arch (i.e. anticline) on arrange probing, get to certain depth just can obtain deep contain ore deposit information.Therefore, bury prediction sylvite ore bed exploratory area that is shallow or crop out in saliferous system, drilling well extremely or through behind shallow table stratum just can start to get sample ore; In the prediction sylvite ore bed exploratory area that there is Quaternary Strata, drilling well starts to get sample ore after need penetrating Quaternary Strata;
The proper noun occurred in the present invention:
Drilling fluid: be in drilling process, the circulation flushing medium used in hole; Its Main Function is, one is to drill bit cooling, and two is that the protection borehole wall is impaired.Drilling fluid can be divided into clear water, mud, free clay phase washing fluid, emulsion fluid, foam and pressurized air etc. by constituent.Mud is widely used drilling fluid, is mainly applicable to the hole wall unstable formations such as loose, cranny development, easily collapsing and breaking, water-swellable peel off.The drilling fluid that the present invention adopts this area routine to use, only otherwise containing soluble potassium ion.
Quaternary system: usually the stratum of deposition since 2,500,000 years the presents has been called Quaternary system.
Neogene system: be called Neogene system from the stratum of deposition during 2,300 ten thousand-250 ten thousand years the present.
Anticline: anticline refers to the fold tectonic of a kind of epirelief in stratum, its core portion is made up of old stratum, Stratigraphic Time by core portion to both wings by experienced new arrangement, when anticline (Anticline) refers to that warpage occurs in rock stratum, the shape person of raising up is on general level land, the stratum first half of anticline suffers erosion and flattens, and can be formed middle ancient, the stratum arrangement mode that both sides are newer.
XRD:X-x ray diffractometer x, by test mineral crystal structure parameter, with precise Identification mineral types;
Electron probing analysis: Fiber electron scanning mirror, can amplify hundred times-up to ten thousand times by rock or mineral, to observe mineral structure form, add energy spectrum analysis, sxemiquantitative can obtain scanning mineral chemistry element composition.
Accompanying drawing explanation
Fig. 1 arch structure axle portion's tensional fault forming and distribution schematic diagram;
The salt arteries and veins (the red salt of vertical stratification output) containing sylvite mineral in Fig. 2 At Jiangling Depression stratum;
The D+F that Fig. 3 detects solid potassium salt ore deposit, deep " penetrates " technology schematic diagram,
Wherein 1-gravel; 2-sandstone; 3-mud stone; 4-halite; 5-sylvite; 6-gypsum; 7-glutenite; 8-is containing sylvine arteries and veins; 9-drilling well;
Fig. 4 underground anticline rises and boring laying schematic diagram containing the salt arteries and veins of potassium.
The potassium 2 well drilling mud potassium content distribution of Fig. 5 At Jiangling Depression hilllock.
Embodiment
Describe the present invention in detail below by way of embodiments and drawings, the laboratory facilities adopted in below implementing, if no special instructions, what all represent employing is this area normal experiment method.
Embodiment 1.+tomography of holing " penetrates " and finds the solid potassium salt ore deposit method of prospecting
One, equipment and material:
1. equipment:
Machinery rock-core borer,
Scanning electron microscope:
X-ray diffractometer:
2. reagent:
Potassium reagent: nitrous acid copper-lead sodium
Drilling fluid: not containing the mud of potassium ion
Two, analytical approach
1. observe:
(1) potassium ion Continuous Observation in drilling mud fluid---whether containing potassium ion, use potassium reagent.
(2) well drilling detritus rock core observe-checks whether containing salt landwaste
(3) drilling extracting core observation---check whether containing salt arteries and veins
2. chemical analysis
(1) mud: potassium magnesium ion content change observation index
A. potassium, magnesium ion content synchronously change or are proportionate;
B. whether potassium content is greater than 1-3%, and whether magnesium ion content is greater than 2-6%.
(2) salt arteries and veins: whether potassium content is greater than 1%, and be greater than more than 10 times, country rock.
3. mineralogy observation
Salt arteries and veins sample: adopt x-ray diffractometer to carry out X-ray diffraction analysis, and adopt Fiber electron scanning mirror to carry out electro microscope energy spectrum analysis, for analyzing in salt arteries and veins whether occur the mineral such as sylvine, carnallite, syngenite or glaserite.
Three, deep formation is containing the index in potassium ore deposit
Table 1+tomography of holing " penetrates " and finds solid potassium salt ore deposit index
Four, method of the present invention is at the application example in Zhao Jia ore deposit, Jiangling
(1) drilling well is reconnoitred in laying;
In order to lay the boring in detection earth formation deep solid potassium salt ore deposit, first, according to existing earthquake and geologic information etc., arch structure should be found; Then, the height point position of anticline is determined; Three borings are laid in direction along saddle axis trend, find peak and secondary high some cloth hole, obtain containing ore deposit information, as shown in Figure 4.
(2) drilling well sampling: drilling depth is (prediction is containing ore deposit) ground depth of burial (Fig. 4) of series of strata anticline upper formation end face, because the salt Maitong containing potassium ore deposit often can channel to huckle above, if selected arch structure has fairly large fracture, then the height of salt arteries and veins rising is larger, as Fig. 5, be drilled into anticline adjacent top surface and just start serial sampling to judge that whether this exploratory area is containing sylvite deposit.
Hilllock potassium 2 well location, drilling well, through after Quaternary system, is often crept into 10-100 rice and is carried out 1 sub-sampling, serial sampling.
(3) judge:
Sample ore acquired by drilling well is carried out above to the analysis of 3 listed in joint aspects of " two, analytical approach ", drilling mud sample, chip sample and/or core vein sample are observed, determination and analysis; Look at whether to occur as listed in table 1 containing potassium index.Thus judge whether to run into containing sylvite arteries and veins and occur, containing potassium index, if observed result demonstrates containing potassium index, can continuing down to creep into; Then drilling well is stopped containing potassium index when not showing;
(4) result
Utilize method of the present invention, hilllock potassium 2 well drilling mud potassium content analysis result as shown in Figure 5, drilling well is through Quaternary Strata and upper third layer stratum, and well depth about 2500 meters and 3240 meters wait place to find to contain potassium index mud: mud potassium content 2-3%, indicate that deep formation has containing potassium ore bed, can continue to creep into, last near 3740 meters, 4127.5-4131.5 rice, 4191-4197 rice, 4240-4243 rice, 4290-4252 rice finds sylvite mineralized layer.As can be seen here, the shallow 1500-1700 rice of depth ratio ledge containing ore deposit information is found.
Can find out, although the concrete ore bed degree of depth in various mining area is by various factors, especially the scale of tectonically active basins and fault development, is difficult to the degree of depth determining ledge, but can lay probing well to determine the degree of depth containing ore deposit information at the anticlinal high of prediction Ore bearing stratum system; If find containing ore deposit information fine, just have reason to add the degree of depth of deep drilling, thus find deep ore bed.If containing ore deposit information gap, just resolutely abandon deep drilling, again lay drilling well position, thus ore deposit success ratio is looked in raising, reduces the loss.
By Fig. 5, we can provide simply mine locating predetermined depth formula:
Dp=Dq+Dt
Wherein, Dp-prospects predetermined depth, and Dq--Quaternary system cover thickness, Dt-the 3rd fastens portion's zone thickness.This computing formula principle is, tomography generally can not penetrate the loose or weak consolidating stratum of Quaternary system, and this section of degree of depth needs probing to make up.

Claims (10)

1. find a method for buried sylvite deposit, step is as follows:
(1) lay and reconnoitre drilling well position: in prediction sylvite ore bed exploratory area, find arch structure, the axle trend along described arch structure is determined peak and secondary high point and lays boring;
(2) sample ore is got in drilling well:
Bury prediction sylvite ore bed exploratory area that is shallow or crop out in saliferous system, drilling well extremely or through behind shallow table stratum starts to get sample ore; In the prediction sylvite ore bed exploratory area that there is Quaternary Strata, drilling well starts to get sample ore after penetrating Quaternary Strata;
Drilling well drilling fluid used is not containing potassium ion;
(3) judge: described sample ore is observed, judge whether described sample ore contains the salt arteries and veins of potassium and occur containing potassium index;
If the result that step (3) is observed demonstrates containing potassium index, then continue down drilling well; If do not shown containing potassium index, stop drilling well and change sylvite ore bed exploratory area holding step (1) (2), (3);
Described demonstrating refers at least observe one of following several groups of situations containing potassium index:
First group: in the sample ore that continuous sampling obtains, potassium content >=1% in mud sample; Magnesium in ultimate analysis display mud, strontium, boron, lithium ion and potassium ion present positive correlation to be changed, and magnesium ion >=2%; Potassium ion >=1% in core, chip sample;
Second group: observe in core, chip sample and occur sylvine, and content is more than 1%;
3rd group: observe in core, chip sample and occur carnallite, and content is more than 1%;
4th group: observe in core, chip sample and occur syngenite, and content is more than 1%;
5th group: observe the saliferous arteries and veins in core, potassium ion >=1%; And be greater than more than 10 times, country rock.
2. method according to claim 1, described analysis refers to x-ray analysis, electron probing analysis and/or quantitative chemical analysis.
3. method according to claim 1, described drilling well starts to get sample ore and refers to through after Quaternary system after penetrating Quaternary Strata, often go deep into 90-100 rice and carry out getting 1 sub-sampling.
4. method according to claim 1, described drilling well starts to get sample ore and refers to through after Quaternary system after penetrating Quaternary Strata, often go deep into 70-80 rice and carry out getting 1 sub-sampling.
5. method according to claim 1, described drilling well starts to get sample ore and refers to through after Quaternary system after penetrating Quaternary Strata, often go deep into 50-60 rice and carry out getting 1 sub-sampling.
6. method according to claim 1, described drilling well starts to get sample ore and refers to through after Quaternary system after penetrating Quaternary Strata, often go deep into 30 ~ 40 meters and carry out getting 1 sub-sampling.
7. method according to claim 1, described drilling well starts to get sample ore and refers to through after Quaternary system after penetrating Quaternary Strata, often go deep into 6 ~ 20 meters and carry out getting 1 sub-sampling.
8. method according to claim 1, described drilling well starts to get sample ore and refers to through after Quaternary system after penetrating Quaternary Strata, often go deep into 1-5 rice and carry out getting 1 sub-sampling.
9. method according to claim 1, if described prediction sylvite ore bed exploratory area is in basins in China area, then the degree of depth of sample ore is got in drilling well is 1000-3000 rice.
10. the arbitrary described method of claim 1 ~ 9 is finding the application in buried sylvite deposit.
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CN107085245B (en) * 2017-05-12 2019-09-17 中国科学院青海盐湖研究所 A kind of exploration prospecting method of sylvite
CN111487684A (en) * 2020-03-12 2020-08-04 中国地质科学院地球物理地球化学勘查研究所 Method and system for searching soluble marine sylvite based on MT
CN112505792A (en) * 2021-01-21 2021-03-16 中国地质科学院矿产资源研究所 Salt lake deep brine zone exploration method based on radon gas indication
CN112505792B (en) * 2021-01-21 2021-11-19 中国地质科学院矿产资源研究所 Salt lake deep brine zone exploration method based on radon gas indication
CN112878998A (en) * 2021-01-28 2021-06-01 成都理工大学 Method for predicting halogen storage layer and evaluating resource amount of underground brine type potassium ore and lithium ore
CN112878998B (en) * 2021-01-28 2022-07-05 成都理工大学 Method for predicting halogen storage layer and evaluating resource amount of underground brine type potassium ore and lithium ore

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