A method and system for identifying pegmatite-type rare metal deposits

Abstract

The invention discloses a method and a system for identifying pegmatite type rare metal ore. The method includes: image processing of acquired WorldView‑2 and other high-resolution images, determining the distribution area of ​​pegmatite veins, and determining the distribution area of ​​pegmatite veins according to the Die distribution area, interpret the processed WorldView‑2 and other high-score images to obtain the decoded WorldView‑2 and other high-score images; perform principal component transformation and false color synthesis on the acquired ASTER remote sensing images to obtain The synthesized ASTER image; the dark area of ​​the synthesized ASTER image is the distribution area of ​​pegmatite-type rare metal ores; the decoded WorldView‑2 and other high-score images and the synthesized ASTER image are combined to determine Location information of pegmatite-type rare metal ore. Therefore, the present invention determines the distribution area of ​​pegmatite based on high-resolution images such as WorldView‑2, and combines the ASTER remote sensing image that can extract the ore-bearing area of ​​pegmatite rare metal minerals, thereby efficiently and effectively in a short time. Quickly and accurately determine the location information of pegmatite-type rare metal deposits.

Description

technical field [0001] The invention relates to the field of remote sensing mineral resource identification, in particular to a method and system for identifying pegmatite-type rare metal ores. Background technique [0002] Rare metal minerals include lithium, rubidium, cesium, niobium, tantalum, beryllium and other minerals. The commonality of these mineral resources is that they are low in abundance in the earth’s crust and have different physical and chemical properties. Rubidium has no independent minerals, and most of them are related to cesium. Paragenetic or in the lattice of potassium minerals, and these rare metal minerals mainly occur in pegmatites. Rare metal mineral resources are widely used, especially in high-tech fields such as aerospace, atomic energy, electronics, and national defense industries. For example, lithium is an indispensable raw material for the manufacture of hydrogen bombs. In nuclear reactors, lithium is used as a control rod coolant and heat...

AI Technical Summary

Problems solved by technology

[0003] At present, geological and mineral exploration work is gradually extending to central and western regions and remote areas with poor natural traffic conditions. These areas have harsh natural conditions and extremely poor traffic conditions, which seriously affect the development of geological exploration work, resulting in a lot of manpower and material resources. can not achieve the corresponding effect

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