摘要
冕宁西部是康滇地区前震旦系出露较集中的地段之一。冕宁西部大热渣组分布于冕宁县西部麦地沟乡新火村北东,主要岩性为浅灰、灰色薄层结晶灰岩及灰白色中厚层状藻层纹白云质结晶灰岩构成。据其不整合于苏雄组火山岩之下并经区域对比,应为中元古代。
Tne Pre - Sinian Darezha Formation is widely exposed in west Mianning. It is composed of grayish and gray thin - bedded crystalline limestone and grayish white medium - and thick - bedded laminar crystalline algal dolomitic limestone. According to regionally stratigraphic correlation and its occurrnce overlain by the Suxiong Formation, it should belong to the Middle Proterozoic.
出处
《四川地质学报》
2005年第3期129-130,共2页
Acta Geologica Sichuan
关键词
大热渣组
前震旦纪
冕宁西部
Darezha Formation
Pre - Sinian
west Mianning
