古地理学报Issue(5)：735-746,12.DOI:10.7605/gdlxb.2014.05.059
安徽宿松上石炭统碳酸盐岩台地沉积物定量分析与海平面变化
Quantitative analysis of carbonate platform sediments and sea-level changes of the Upper Carboniferous in Susong area,Anhui Province
摘要
Abstract
The Upper Carboniferous carbonate rocks,with 1 00meters thickness and abundant fos-sils,were well developed in Susong area of Anhui Province.These rocks belonged to the typical shallow carbonate platform deposits.The grains quantitative analysis showed that the lithofacies mainly included grainstones and packstones with the content of 81.2% and 69.6% respectively;and shallow marine bio-clasts predominated.Moreover, there were wackstones and lime mudstones with the grains content of 26.4%and 4.1%respectively.The open-marine platform facies and tidal flat facies were mainly developed in study area, which could be divided into five types of subfacies including intra-platform shoal, intra-platform basin,intra-platform flat and inter-tidal flat and supra-tidal flat.Combining the above characteris-tics,three long-term transgressive-regressive cycles could be recognized from the Upper Carboniferous. The sea-level changes were characterized by the high frequency short-term sea-level fluctuations superimpo-sing on a long-term sea-level fall.These three cycles were roughly corresponding to the long-term trans-gressive-regressive cycles in other areas of Yangtze Plate and the same-time strata in Euramerican Plate.It also indicated that the sea-level changes were influenced by alternation of the glacial period and non-glacial period in Gondwana.关键词
定量分析/沉积相/相对海平面变化/冈瓦纳冰川/上石炭统/宿松地区Key words
quantitative analysis/sedimentary facies/relative sea-level change/Gondwana glac-ier/Upper Carboniferous/Susong area分类
天文与地球科学引用本文复制引用
芦艳琳,李双应,赵大千,王冰,稽在飞..安徽宿松上石炭统碳酸盐岩台地沉积物定量分析与海平面变化[J].古地理学报,2014,(5):735-746,12.基金项目
国家自然科学基金项目（编号41172197，40972082）和国家地质调查专项《长江中下游重要“矿源层”沉积环境与燕山期岩浆热液叠加成矿作用研究》联合资助 （）
