upper cambrian

常见例句

Solid bitumen is widely distributed in the Middle-Upper Cambrian limestones, the Sandu-Danzhai region of southeastern Guizhou Province.
黔东南地区三都—丹寨一带中上寒武统灰岩中广泛分布有固体沥青。
Middle-Upper Cambrian dolomites in Shimen, Hunan Province, are mainly composed of anhedral micritic dolomite, euhedral and subhedral granular dolomites, grain dolomite.
湖南石门中上寒武统白云岩极其发育，类型多样，不同类型的白云岩其成因机理和白云石化模式各不相同。
Cambro-Ordovician mudstones, upper Cambrian and Carboniferous gypsum rocks and the relatively tight lithologies have blocked the vertical migration of formation fluids in Tarim basin.
塔里木盆地古生代寒武—奥陶纪泥岩、晚寒武世和石炭纪的膏岩层及较为致密的岩性阻碍了地层流体的垂向运移。