Distribution of the Permian Monodiexodina in Karakorum and Kunlun and its Geological Significance
Distribution of the Permian Monodiexodina in Karakorum and Kunlun and its Geological Significance作者机构:Institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China Chang'an University Xi'an Shaanxi 712000 China
出 版 物:《Acta Geologica Sinica(English Edition)》 (地质学报(英文版))
年 卷 期:2009年第83卷第2期
页 面:229-237页
核心收录:
学科分类:0709[理学-地质学] 07[理学] 08[工学] 09[农学] 083002[工学-环境工程] 0830[工学-环境科学与工程(可授工学、理学、农学学位)] 070903[理学-古生物学与地层学(含:古人类学)] 0708[理学-地球物理学] 0804[工学-仪器科学与技术] 0903[农学-农业资源与环境] 0816[工学-测绘科学与技术] 081602[工学-摄影测量与遥感] 081102[工学-检测技术与自动化装置] 0811[工学-控制科学与工程]
基 金:support of the National Nature Science Foundation of China(no.:40572018) the China Geological Survey(no.:200313000054,1212010611702,1212010661312,1212010511702,and1212010561605)
主 题:Monodiexodina middle latitude symmetric distribution cool temperate sea area,Karakorum east Kunlun northern hemisphere
摘 要:The Permian fusulinoidean genus Monodiexodina is widely distributed in east Tethys. The genus might be an important indicator for the northern margin of Gondwana in northwestern China, but this is disputed. Monodiexodina-bearing areas can be restored as in either northern or southern middle latitudes with a symmetrical distribution between a high latitudinal, cool/cold water climatic realm and a paleotropical, warm water realm. Permian strata bearing Monodiexodina in Karakorum, Muztag Pear, and Buka Daban Pear of the east Kunlun Mountains can be correlated with each other. Faunal analyses and the stratigraphical position of Monodiexodina-bearing strata indicate that both Karakorum, east Kunlun, and the Pamirs were formed in a cool temperate sea area of the northern hemisphere in middle latitudes during the Permian, rather than at the Gondwana margin.