豫西地区大地构造特征及其演化

Yuxi Area Tectonic Characteristics and Evolution

豫西地质构造区地跨不同的变形体构造区,由于各煤田的分布受控于区域构造;嵩箕构造区构造形式主要以断隆、褶曲、走滑断层为主;崤熊构造区构造形式主要以褶曲、逆冲推覆为主。大地构造演化大体可分为3个阶段,即成煤期前基础构造阶段、成煤期同期构造阶段、成煤期后控制构造阶段。

Yuxi geological leclonic district across different deformation structureal areas, because of the distri- bution of the various coal fiends controlled by regional structures, Songqi tectonic zone constructes mainly in the form of fault uplift, fold, strike - slip faults ; Xiao - Xiong tectonic zone constructs the mainly in the form of fold and the thrust. Tectonic ew）lution can be roughly divided into three stages, such as branding for coal - based construction phase befor coal formation , coal - phase construction phase over the same period, coal - forming period late control construction pha.se.