The depositional environments in different areas are reestablished in terms of the analysis of the sedimentary characteristics of various strata 分析了各地层的沉积特征,恢复了不同地区的沉积环境。
Depositional facies , a term of petroleum geology , is a combination of sedimentary rocks produced by a certain depositional environment 沉积相是石油地质学中的一个术语,是指一定的沉积环境所形成的沉积岩组合。
Research on the depositional environment and resources potential of the oil shale in the chang 7 member , triassic yanchang formation in the ordos basin 鄂尔多斯盆地三叠系延长组长7油层组油页岩沉积环境与资源潜力研究
In the late permian and triassic , the basin underwent once again a large - scale transgression , and the depositional environment was shelf sea with delta locally 晚二叠世三叠纪盆地又经历了一次大的海侵, ?浅海陆棚环境,局部?海陆过渡三角洲相。
With stromatolite but no desiccation crack , the depositional environment of middle - late cambrian in the area was intertidal zone to subtidal zone with the shallow - water features 根据其中的叠层石和无明显泥裂构造,推测为潮间带局限潮下带沉积环境。