淮南地区风暴岩特征及其沉积环境  

Upper Proterozoic Lower Paleozoic tempestites characters and their environmental significance to Huainan region of Anhui.

作　　者：周进高[1] 赵宗举[1] 邓红婴[1] 

机构地区：[1]杭州石油地质研究所

出　　处：《石油勘探与开发》1999年第5期73-76,共4页Petroleum Exploration and Development

摘　　要：安徽淮南地区上元古界至下古生界海相建造赋存有大量的风暴沉积，分布层位为： 青白口系刘老碑组，下震旦统寿县组、九里桥组，下寒武统馒头组的中上部；主要产于海侵体系域和高水位体系域中。经研究，本区风暴岩包括原地、近源和远源三种风暴岩类型，可识别出十种剖面结构。主要依据风暴岩的底面构造形态、流水构造及剖面层序特征，着重探讨了各种剖面结构类型的产出环境、水动力条件及其沉积模式，认为由潮坪向陆棚，风暴流具有由风暴潮流（ 旋涡流） →风暴回流（ 碎屑流与摆动浪兼具） →风暴浊流发展的规律。图４ 参７（ 邹冬平摘）There are many tempestites in Upper Proterozoic Lower Paleozoic of Huainan region of Anhui. They exist in the Liulaobei Formation, Shouxian Formation, Jiuliqiao Formation and Mantou Formation and often distribute in highstand system tract (HST) and transgressive system tract (TST). The most of tempestites concerning in this paper are first reported. According to our research, the tempestites include 3 types of autochthonous, proximal and distal rock and can be classified into 10 types of sectional texture. On the bases of the characters of basement structure, flooding structure and sectional textures, we mainly analyse the relations between the emerging environments,hydrodynamics condition and sedimentary model with various sectional textures, suggesting that the storm current would be from storm tidal current to storm rip current and then to storm turbidity current when it move from tidal flat to shelf.

关 键 词：风暴岩 特征 沉积环境 淮南地区 

分 类 号：P588.2[天文地球—岩石学]