岩性主要为黏土、亚黏土、细砂，孔隙小，富含氟的矿物成分为地下水中高氟提供了丰富的物质来源。
The main lithology is clay, sub-clay, fine sand, fine porosity, the mineral components of rich fluoride provides an abundance of matter resources.
从地质时代的一致性上反映硒的来源与西南地区峨眉山玄武岩喷发或风化作用有关。
The consistency of the geologic ages suggests that the selenium source is related to eruption or weathering of the Emeishan basalt in Southwest China.
油源对比证实：盆地目前保存下来的海相成因工业性油藏，主要来源于中上奥陶统泥灰岩。
The correlation between oil and source proved that the preserved commercial oil reservoirs of Marine origin in the Tarim basin are mainly generated from the marl of the Middle Upper Ordovician.
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