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威西盐矿是1967年四川省石油管理局在犍为罗城一带打井找油的过程中发现的,属岩盐矿藏。该盐矿位于威远构造以西(103°50′—104°20′E,29°20′—29°50′N),主要分布在犍为县东北部,井研县境和荣县西部。南北长35km,东西宽25km,展布面积716.7km~2,总储量为174.6亿吨。该岩盐矿体以单斜层状产于中生代三叠系雷口坡组第三段下部的碳酸盐岩和硬石膏岩中,盐体倾角3°—7°,埋藏深度800—1800m,盐体厚度15—20m,最厚达44.5m。
WeiXi Salt Mine was discovered in 1967 by Sichuan Provincial Petroleum Administration during the digging of wells in LuoCheng area and belongs to the rock salt deposit. The salt deposit is located west of Weiyuan (103 ° 50’-104 ° 20’E, 29 ° 20’-29 ° 50’N) and is mainly distributed in the northeast of Jingwei County, the Jingyan County and the west of Rongxian. 35km long from north to south, 25km wide from east to west, with an area of 716.7km ~ 2 and total reserves of 17.46 billion tons. The rock salt ore body is monoclinic in carbonate and anhydrite gypsum in the lower part of the third member of the Mesozoic Leikoupo Formation of Mesozoic. The salt body is inclined at an angle of 3 ° -7 ° and has a buried depth of 800-1800 m. Thickness of 15-20m, the maximum thickness of 44.5m.