A pegmatite-type lithium ore prospecting method based on multi-source remote sensing data

Abstract

The invention discloses a pegmatite-type lithium ore prospecting method based on multi-source remote sensing data, which comprises the following steps: determining a prospecting prospect area of the pegmatite-type lithium ore by using the first resolution optical remote sensing data of an area to be studied; For each prospecting prospect area of pegmatite lithium deposit, the dome structure is determined by radar data and the rotating rock area is determined by optical remote sensing data with second resolution, and the second resolution is higher than the first resolution. The prospecting target area of pegmatite lithium deposit is determined based on the dome structure and the positional relationship of the rotating stone area. The invention utilizes relatively low-resolution first-resolution optical remote sensing data to determine a prospecting prospect area, The dome structure of each prospecting prospect area is then determined using radar data and the rotating rock area of eachprospecting prospect area is determined using relatively high resolution second resolution optical remote sensing data, Finally, the dome structure and the rotating rock area are taken as the key field prospecting clues, and the prospecting target area is determined through the position relationship between them, which provides scientific basis for field prospecting.

Description

technical field [0001] The invention relates to the technical field of geological exploration. More specifically, it relates to a method for prospecting pegmatite-type lithium deposits based on multi-source remote sensing data. Background technique [0002] Lithium is an indispensable strategic resource for the development of emerging industries. It can not only store energy, save energy, but also increase production capacity. It is highly used in both military and civilian applications, so it is called "the energy metal of the 21st century". The global lithium deposits are mainly brine-type and pegmatite-type, and the pegmatite-type lithium deposits are rich in 6 Li and other strategic elements are one of the important types of deposits. The formation of lithium deposits is mainly due to the enrichment of lithium elements during the formation of pegmatites. [0003] According to previous studies, the pegmatite rocks in the residual slope deposits and the fragments and roc...

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Problems solved by technology

However, some pegmatite-type lithium mining areas are seriously covered by accumulations and high vegetation on the surface, and the topography is complex. Some areas have an altitude of more than 4,000 meters, which increases the difficulty factor of information extraction and interpretation of rock blocks such as pegmatites. Big, which brings great difficulty to the prospecting work

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