What is the endogenous deposit and its classification?
Magma deposit Magma deposits are deposits formed by the accumulation of useful components dispersed in magma due to magma differentiation during magma condensation. It can be said that it is the first deposit produced by magma intrusion into the earth's crust. Such deposits are generally formed in deep underground areas with a relatively high temperature and pressure environment, which is equivalent to the formation of plutonic rocks. Derived from mineral deposits formed deep in the crust or the mantle, because it is formed under high temperature and pressure conditions, it is generally a high melting point mineral ore, density, simple mineral components, such as chrome iron ore, the platinum group Elements and so on. The ore bodies are almost all produced in the superbasic or basic intrusive parent rock. In fact, the deposit is the relatively rich part of the igneous rock, and the parent rock is the surrounding rock, and the two are gradually transitional. Most of the chromium, nickel , platinum group elements and a considerable number of minerals such as vanadium , titanium , cobalt , and rare earth are produced in magma deposits. 2. Pegmatite deposit Pegmatite is a rock composed of coarse crystals and produced by veins. In the formation process of pegmatite, under the influence of volatile components, the deposit formed by enrichment of useful components by magma differentiation or gas-liquid metasomatism is called pegmatite deposit. Magma of various compositions can produce corresponding pegmatites, but the most widely distributed and industrially significant is the granite pegmatite deposit. Pegmatite deposits a lot of origin, such as white mica Inner Castle pegmatite deposits, ALTAY rare metal (tantalum, niobium, cesium, lithium, beryllium, etc.) pegmatite deposits and the like. 3. Gasification-hydrothermal deposit Mineral deposits are transported in hot and hot liquids and filled into deposits formed in rock fissures, collectively referred to as gasification-hydrothermal deposits. Volcanic deposit It refers to a deposit produced on the surface or near the surface (0-1.5km) during volcanic activity. According to mineralization, it can be divided into volcanic magma deposits, volcanic gas deposits and volcanic deposits. AGV High Speed Door, AGV Car High Speed Door, AGV Trolley High Speed Door SHENZHEN HONGFA AUTOMATIC DOOR CO., LTD , http://www.hongfarrud.com