准噶尔盆地南缘露头区紫泥泉子组介形类动物群及时代归属  

CRETACEOUS— PALAEOGENE OSTRACODS FROM THE SOUTHERN EDGE OF THE JUNGGAR BASIN AND THEIR STRATIGRAPHIC SIGNIFICANCE

作　　者：杨景林[1] 沈一新 商华[2] 郑秀亮[2] 周春梅[2] 王睿[2] 徐健 刘凤臣 阿丽娅[2] 

机构地区：[1]中国石油大学(华东)地球科学与技术学院,山东青岛266580 [2]新疆油田公司勘探开发研究院,新疆克拉玛依834000

出　　处：《古生物学报》2012年第3期359-369,共11页Acta Palaeontologica Sinica

摘　　要：近年来经过对准噶尔盆地南缘露头区紫泥泉子组的几轮野外地质工作,在呼图壁河、东沟、玛纳斯河、紫泥泉子、北阿尔钦沟、托托等剖面上相继发现了重要的介形类化石,其中紫泥泉子组建组剖面玛纳斯县紫泥泉子剖面的化石面貌最全,自下而上可建立下段晚白垩世Talicypridea组合,上段古新世-始新世Cyclocypris-Cyp-ris-Cyprinotus-Eucypris-Limnocythere组合。紫泥泉子组下段的晚白垩世介形类组合广泛分布于南缘露头区,上段的古新世-始新世介形类组合目前仅见于建组剖面。In recent years important discoveries about ostracod fossils have been made as a result of several rounds of geological investigation in the outcrop area at the southern edge of the Junggar Basin,Xinjiang. Ostracods have mainly been studied from the Hutubi River, Donggou, Ziniquanzi, Manasi River, Beiaerqingou, and Tuotuo, amongst which the fossils found in the Ziniquanzi Formation section in Manasi County are most noteworthy. According to their geological ranges in the Ziniquanzi section studied here, two assemblages of Ostracods are recognised. In ascending order,

关 键 词：介形类 晚白垩世 古新世-始新世 紫泥泉子组 准噶尔盆地 

分 类 号：Q915[天文地球—古生物学与地层学]