中国北方地区石炭纪岩相古地理  

Lithofacies palaeogeography of the Carboniferous in northern China

作　　者：朱如凯[1] 许怀先[1] 邓胜徽[1] 郭宏莉[1] 

机构地区：[1]中国石油勘探开发研究院,北京100083

出　　处：《古地理学报》2007年第1期13-24,共12页Journal of Palaeogeography：Chinese Edition

基　　金：中国石油天然气股份公司"十五"科技攻关项目

摘　　要：中国北方地区包括西北地区、华北地区和东北地区。该地区石炭系划分为上、下统,在西北地区、东北地区石炭系发育完整,华北地区普遍缺失下石炭统。87个标准剖面和529个辅助剖面的岩相古地理研究表明:早石炭世中国北方地区主要存在佳木斯古陆、额尔古纳古陆、中朝古陆、东塔里木─敦煌─中祁连─阿拉善古陆、陇西古陆、准噶尔─吐哈古陆、阿勒泰古陆等;从东至西主要发育松辽海盆、辽东海湾、北山海盆、祁连海、柴达木台地、宗务隆山海槽、塔里木台地、西昆仑海盆、南天山海盆、北天山─准噶尔海盆等海相沉积。晚石炭世海侵范围扩大,佳木斯古陆、额尔古纳古陆仍然存在,中朝古陆已明显缩小至其北部地区,东塔里木—敦煌—阿拉善古陆范围缩小,陇西古陆向西延伸扩大,北准噶尔─阿勒泰连为一体形成古陆;发育松辽海盆、华北海、祁连海、柴达木台地、宗务隆山海槽、塔里木海盆、南准噶尔—博格达山海盆等海相沉积。In this paper, northern China includes Northwest China, North China and Northeast China, in which the Carboniferous is divided into the Lower and Upper Carboniferous. In Northwest and Northeast China, the Carboniferous was developed completely, while in North China, the Lower Carboniferous was absent. The Jiamusi, Aierguna, China-Korea, East Tarim-Dunhuang-Middle Qilian-Alxa, Longxi, Junggar-Tuha, and Aletay oldlands were mainly developed during the Early Carboniferous. From east to west, including the Songliao marine basin, Liaodong gulf, Beishan marine basin, Qilian littoraln-eritic facies, Zongwulong neritic-bathyal facies, Qaidam shallow carbonate platform facies, Tarim paralic facies, west Kunlun littoral-carbonate plafform-bathyal facies, south Tianshan littoral-neritic-plafform edge-slope-basin facies, north Tianshan-Junggar bathyal-abyssal facies were developed during the Early Carboniferous. The characteristics of lithofacies palaeogeography of the Late Carboniferous were different from those of the Early Carboniferous, and the area of the oldland decreased. The Jiamusi and Aierguna oldlands still existed. The China-Korea oldland, which was named as the northern China oldland of North China and center oldland of Ordos, and the area of East Tarim-Dunhuang-Alashan oldland were decreased, while Longxi oldland was increased to its west which was named as Mazongshan oldland in Beishan area. The North Junggar-Aletay oldland was developed into one oldland. The Songliao marine basin, North China paralic facies, Qilian paralic facies, Qaidam shallow carbonate platform facies, Zongwulong neriticbathyal facies, Tarim paralie-neritie facies, South Junggar-Bogedashan marine basins were developed.

关 键 词：中国北方 石炭纪 岩相古地理 西北地区 华北地区 东北地区 

分 类 号：P531[天文地球—古生物学与地层学]