Remote sensing method for quickly distinguishing silicification zone from acid vein
A technology for silicified zones and acidic rocks, which is applied in the field of remote sensing information technology in structural geological research and mineral exploration, and can solve problems such as the inability to quickly distinguish silicified zones and acidic rock dikes
Pending Publication Date: 2020-04-21
BEIJING RES INST OF URANIUM GEOLOGY
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[0005] The present invention aims at the deficiencies of the above-mentioned prior art, and provides a remote sensing method for quickly distinguishing silicified zones and acidic dykes, which is used to solve the technical problem that silicified zones and acidic dykes cannot be quickly distinguished in the prior art
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[0036] A remote sensing method for quickly distinguishing silicified zones and acid dikes according to the present invention will be described in detail below in conjunction with the accompanying drawings and examples.
[0037] A remote sensing method for quickly distinguishing silicified zones and acidic dikes of the present invention, firstly preprocesses the thermal infrared hyperspectral remote sensing data; then performs atmospheric correction and emissivity separation to obtain emissivity images; then performs SiO 2 Quantitative calculation of content and quartz mineral content, the SiO 2 Content map and quartz mineral content map; then also high SiO 2 The bands with different quartz content distinguish acid dikes and silicified zones, that is, the ones with high quartz content are silicified zones, and the ones with less quartz content are acidic dikes.
[0038] like figure 1 As shown, a kind of remote sensing method of rapidly distinguishing silicified zone and acid ...
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Abstract
The invention belongs to the technical field of remote sensing information technology in tectonic geology research and mineral exploration, and particularly relates to a remote sensing method for quickly distinguishing a silicification zone from an acid vein. The method comprises the following steps: preprocessing thermal infrared hyperspectral remote sensing data; performing atmospheric correction on the thermal infrared hyperspectral remote sensing data; separating the temperature / emissivity of the thermal infrared hyperspectral data; obtaining a SiO2 content diagram; acquiring a quartz mineral content diagram; and distinguishing the silicification zone from the acid vein. Aiming at different physicochemical properties of the acid veins and the silicification zones, quantitative calculation of SiO2 and quartz contents is carried out by utilizing a remote sensing technology, so that the acid veins and the silicification zones can be quickly and accurately distinguished.
Description
technical field [0001] The invention belongs to the technical field of remote sensing information technology in structural geological research and mineral exploration, and in particular relates to a remote sensing method for quickly distinguishing silicified zones and acid veins. Background technique [0002] Acidic dikes are formed under the comprehensive action of geological activities such as tectonic movement and acidic magmatic activity. Therefore, accurately identifying and determining the location and distribution of acidic dykes is very important for analyzing and simulating the direction of tectonic movement, mechanical properties and magma. The nature of the activity plays a huge role. The silicide zone is the product of hydrothermal activity, which is of great significance to the exploration of various metal deposits. Therefore, the distinction between acid dikes and silicified zones is of great significance for geological research and geological exploration for ...
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Login to View More IPC IPC(8): G01N21/3563G01N33/24
CPCG01N21/3563G01N33/24G01N2021/1793
Inventor 郭帮杰张杰林武鼎周觅
Owner BEIJING RES INST OF URANIUM GEOLOGY