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A kind of pegmatite type rare metal prospecting method

A rare metal and pegmatite technology, applied in the field of minerals, can solve the problems of prolonging the exploration period, ineffective prospecting effect, and low prospecting efficiency

Inactive Publication Date: 2021-01-29
青海省地质调查院
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  • Description
  • Claims
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Problems solved by technology

[0002] The ore-bearing construction, ore-controlling elements, and ore body exposure characteristics of pegmatite-type rare metal deposits (spots) are different from those of general intrusive rock or volcanic rock areas. Prospecting by means of methods may prolong the exploration period, low ore prospecting efficiency and inconspicuous ore prospecting effect, etc.

Method used

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  • A kind of pegmatite type rare metal prospecting method
  • A kind of pegmatite type rare metal prospecting method
  • A kind of pegmatite type rare metal prospecting method

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Embodiment 1

[0045] Taking the Shaliuquan pegmatite-type niobium-tantalum deposit located in the eastern margin of the Qaidam Basin as an example, the prospecting effect of this combination of exploration techniques and methods is briefly described.

[0046] 1. Using high-precision remote sensing interpretation and 1:10,000 large-scale geological survey to preliminarily screen out the distribution area of ​​pegmatite dikes

[0047] 1) High-precision remote sensing interpretation

[0048] ⑴ Geological landscape characteristics of the survey area

[0049] From the image map, the interpretation area is from southwest to northeast, and generally presents a geological landscape of middle mountains, wide valleys between mountains and low mountains and hills, with obvious peak-basin-hill-ridge steps. Restricted and cut by two sets of main linear structures in the northwest and northeast directions, the bedrock mountains form strips distributed in two directions, making strips, lumps, and rings a...

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Abstract

The invention discloses a pegmatite-type rare metal prospecting method, which includes the following steps: according to the regional geological background and the distribution area of ​​magmatic rocks, the spatial distribution of pegmatite dikes is preliminarily identified by high-precision remote sensing interpretation, and then 1 : 10,000 large-scale geological surveys, accurately compiled the distribution pattern of pegmatite dikes, and preliminarily screened out the distribution area of ​​pegmatite dikes. The 1:25,000 water system sediment measurement and the large-scale high-precision magnetic measurement were carried out, and the abnormal distribution map of the rare element water system sediment and the high-precision magnetic measurement anomaly map were delineated. Deploy 1:5000 rock geochemical profiles in key anomalous sections for control and tracing, and initially select ore-bearing pegmatite veins; deploy trenches for exposure control, and delineate mineralized bodies or ore bodies; For the characteristics of mineralized bodies, select high-grade and large-scale pegmatite dikes to deploy drill holes, conduct deep verification, and specifically delineate ore bodies.

Description

technical field [0001] The invention belongs to the field of mineral technology, and relates to a pegmatite-type rare metal prospecting method. Background technique [0002] The ore-bearing construction, ore-controlling elements, and ore body exposure characteristics of pegmatite-type rare metal deposits (spots) are different from those of general intrusive rock or volcanic rock areas. Prospecting by using this method may prolong the exploration period, lead to low ore prospecting efficiency and inconspicuous ore prospecting effect, etc. Contents of the invention [0003] The object of the present invention is to provide a pegmatite-type rare metal prospecting method with high exploration efficiency and short exploration period. [0004] Its specific technical plan is: [0005] A pegmatite-type rare metal prospecting method is characterized in that the method comprises the following steps: [0006] (1) Preliminary identification of the spatial distribution of pegmatite ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V11/00
CPCG01V11/00
Inventor 李善平潘彤任华陈秉芳白建海陈静舒树兰甘艳辉赵海霞
Owner 青海省地质调查院
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