准噶尔盆地早侏罗世八道湾组陆相沉积中发现海相瓣鳃类  

MARINE BIVALVES FOUND IN LOWER JURASSIC OF CONTINENTAL JUNGGER BASIN OF WEST CHINA

作　　者：陈金华[1] 张义杰[2] 

机构地区：[1]中国科学南京地质古生物研究所,江苏南京210008 [2]新疆石油管理局研究院,新疆克拉玛依834000

出　　处：《新疆地质》2000年第1期28-31,共4页Xinjiang Geology

摘　　要：在陆相河湖沉积的八道湾组（早侏罗世）内，新发现一些海相瓣鳃类化石，表明当时准噶尔盆 地在一短期内曾与海水相通，或者海水通过某一水系涌入该河湖区。从生态特征分析，当时可能为一 泛滥平原。根据海相化石对比，化石产出层位八道湾组上部的时代可能属西湟缪尔期。Some marine bivalves were found in the Badaowan Formation(Early Jurassic) with continental lacustrine sediment, which indicates that Junggar basin used to be coneded with sea water in a short bine or the sea water emerged the lake. Analysis on the ecological characteristics,there was a flooded plain at that time. According to the correlation study of marine fossils, the occurence horizon of the fossil, the upper part of Badaowan Formation probably belongs to Xihuangmur Stage.

关 键 词：准噶盆地 早侏罗世 八道湾组 海相 瓣鳃类 

分 类 号：P535[天文地球—古生物学与地层学]