Fossils of Quercus sect. Heterobalanus can help explain the uplift of the Himalayas  

作　　者：ZHOU ZheKun YANG QingSong XIA Ke 

机构地区：[1]Laboratory of Biogeography and Biodiversity, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China [2]Graduate University of Chinese Academy of Sciences, Beijing 100049, China

出　　处：《Chinese Science Bulletin》2007年第2期238-247,共10页

基　　金：the National Natural Science Foundation of China (Grant Nos. 40332021, 30670159);Wu Zhengyi's Splendidly Contributing Award of Yunnan Province (Grant No. KIB-WU-2001-01)

摘　　要：Using data from previous research on Quercus sect. Heterobalanus, the coexistence approach to Xix-abangma and Namling fossil sets, and altitudinal ranges of vegetation presented by fossil floras, a re-view and reevaluation have been made of existing theories on the uplift of the Himalayas, especially the palaeoaltitudes of Xixabangma and Namling in Tibet. The Xixabangma fossil set has a palaeoaltitude range of 2500―3500 m, and has risen 2200―3400 m since the Pliocene. The lower and upper assem-blages of the Miocene Namling had palaeoaltitudes of 2500―3000 m and 2800―3000 m, respectively. Therefore, Namling has risen at least 1300 m since the Miocene, thereby challenging some existing theories that suggest Namling has been static since the Miocene.Using data from previous research on Quercus sect. Heterobalanus, the coexistence approach to Xixabangma and Namling fossil sets, and altitudinal ranges of vegetation presented by fossil floras, a review and reevaluation have been made of existing theories on the uplift of the Himalayas, especially the palaeoaltitudes of Xixabangma and Namling in Tibet. The Xixabangma fossil set has a palaeoaltitude range of 2500-3500 m, and has risen 2200-3400 m since the Pliocene. The lower and upper assemblages of the Miocene Namling had palaeoelUtudes of 2500-3000 m and 2800-3000 m, respectively. Therefore, Namling has risen at least 1300 m since the Miocene, thereby challenging some existing theories that suggest NamUng has been static since the Miocene.

关 键 词：化石 古生物学 喜马拉雅山 新生界 

分 类 号：Q911.2[天文地球—古生物学与地层学]