北京大学学报：自然科学版2012，Vol.48Issue(4)：589-602,14.
贵州罗甸大文二叠一三叠系界线剖面海平面变化及其全球对比
Sea-Level Changes at the Dawen Permian-Triassic Boundary Section of Luodian, Guizhou Province, South China: A Global Correlation
摘要
Abstract
After a detailed description of the earliest Triassic thrombolite at the Dawen section, Guizhou Province, South China, four mesostructural categories were distinguished: spotted, layered, dendritic, and reticular mesostructures of thrombolite. The sedimentary characters and the lithologic statistics of the four types of thrombolites indicated that those thrombolites were formed in a subtidal environment, where the spotted and layered thrombolites usually in a lower-energy, deep-subtidal environment, in contrast with the dendritic and meshed thrombolites in a shallow-subtidal environment. The stacking pattern of eighteen shallowing-upward cycles in the microbialitic succession showed that this area experienced a relative fall in sea-level during the Hindeodus parvus Zone, and its minimum appeared during the Isarcicella staeschei Zone and the earliest period of the /. isacica Zone, then the sea-level began to rise. The fall of sea-level in the latest Permian are found at various sections in the world, and the pattern of sea-level changes during the earliest Triassic (the H. parvus, the L staeschei, and the 1. isacica zones) are correlated with some areas in Palaeo-Tethys. Those fluctuation patterns probably indicated the eustatic sea-level changes to a certain extent.关键词
微生物岩/凝块石/中型构造/早三叠世/海平面变化Key words
microbialite/thrombolite/mesostructure/earliest Triassic/sea-level change分类
天文与地球科学引用本文复制引用
王海峰,刘建波,江崎洋一..贵州罗甸大文二叠一三叠系界线剖面海平面变化及其全球对比[J].北京大学学报：自然科学版,2012,48(4):589-602,14.基金项目
国家自然科学基金（40972020）和现代古生物学和地层学国家重点实验室资助 （）
