古地理学报2008，Vol.10Issue(2)：125-138,14.
山东省唐王寨上寒武统崮山组沉积环境及竹叶状灰岩的多成因分析
Multiple origins for flat-pebble limestones and sedimentary environments of the Upper Cambrian Gushan Formation at Tangwangzhai in Shandong Province
摘要
Abstract
The Upper Cambrian Gushan Formation in North China Platform is characterized by abundant deposition of flat-pebble limestones(flat-pebble conglomerates).The flat-pebble limestone refers to the 80-called edgewise-limestone.Based on the systematic investigation of the sedimentology of theGushan Formation at the Tangwangzhai Section,Shandong Province,8 rock types,namely calcareous shale,nodular micritie limestone,muddy banded micritic limestone,thin-bedded micritic limestone,bioturbated micritie limestone,skeletal wackestone-packstone,oolitic grainstone,and flat-pebble limestone,have been recognized in this formation,and have been grouped into 3 rock associations,which were deposited in the shaly basin,deep subtidal zone and shallow subtidal zone.The characteristics of pebbles and matrix and sedimentary successions indicate different provenances for the pebbles and matrix,and suggest that flat-pebble limestones in the Gushan Formation were originated from multiple sedimentary environments.Flat-pebble limestones in the Gushan Formation are grouped into 4 types accord ing to their origins.1)Both pebbles and matrix were probably formed in situ or transported only for a short distance;2)Both pebbles and matrix were eroded and transported for a long distance from nearshore regions or experienced a sea-level rising process;3)Matrix might be transported from nearshore regions,and mixed with pebbles and lime mud formed in situ;4)Pebbles might be eroded and trans-ported from micritic limestone on far offshore regions,and mixed together with matrix in situ,such as lime mud and skeletal grains.关键词
竹叶状灰岩的多成因/沉积环境/崮山组/上寒武统/山东省Key words
multiple origins for fiat-pebble limestone,sedimentary environments,Gushan Formation,Upper Cambrian,Shandong Province分类
天文与地球科学引用本文复制引用
丁玉,白志强,刘建波,韩作振..山东省唐王寨上寒武统崮山组沉积环境及竹叶状灰岩的多成因分析[J].古地理学报,2008,10(2):125-138,14.基金项目
Supported by National Natural Science Foundation of China(Grant No.40372018),the Ph.D.Programs Foundation(Grant No.10020001054).sad the Major Basic Research Projects(Grant No.2006CB806402)0f MST of China （Grant No.40372018）
