西藏羌塘地块位于藏北高原腹地，夹于龙木错-双湖缝合带与班公湖-怒江缝合带之间。由于野外条件异常艰苦以及交通不便等因素，羌塘地块的地质研究一直进展缓慢，关于其二叠纪的古地理更是争论不休的话题。

Tibet qiangtang block is located in the northern Tibet plateau hinterland，Clip in LongMu wrong - double lake suture zone and bangong-nujiang suture zone between。Due to the field condition anomaly hard and factors such as traffic inconvenience，Qiangtang block geological research progress has been slow，About the Permian ancient geography is the topic of debate。

　　中国科学院南京地质古生物研究所张以春副研究员等于2009年对西藏北部尼玛县以北以及双湖特别行政区以西的二叠系展开了详细的研究。野外研究发现了曲地组巨厚浊积岩和鲁谷组的海山沉积。重要的是，在曲地组中和鲁谷组下部各发现不同的蜓类有孔虫动物群，确定曲地组浊积岩的时代为Artinskian期，而鲁谷组海山沉积的时代为Kungurian中期。

The Chinese academy of sciences institute of nanjing geological paleontology ZhangYiChun associate researcher is equal to 2009 to northern Tibet nima county, north and double lake special administrative region west of Permian launched a detailed research。Field study found that the song to group of huge thick turbidite and LuGu group of sea mountain deposit。Important is，In the song to group and lower the LuGu group found that different safe class foraminiferal fauna，Determine the song to group turbidite times for Artinskian period，And LuGu group seamount sedimentary times for middle Kungurian。

　　从区域上看，曲地组之下的擦蒙组和展金组中发育了大量的基性岩墙群，显示初始板内裂谷的环境。因此Artinskian期曲地组的浊积岩的形成被认为是其脱离冈瓦纳北缘的直接证据，而Kungurian期的海山型沉积被认为是来源于新形成的新特提斯洋。

Look from the regional，Song to group under the brush have group and exhibition gold group development of a large number of basite wall group，Show the initial intraplate rift environment。Therefore Artinskian period song to group of turbidite formation is considered to be the from northern margin of gondwana direct evidence，And Kungurian issue of the sea mountain type deposit is thought to be derived from newly formed a neo-tethys。

　　在整个冈瓦纳北缘，羌塘地块的裂解向东可以和保山地块，向西可以和中帕米尔的裂解类比。而印度板块北缘和阿曼地块的裂解却主要发生在中二叠世中期。因此可以判断二叠纪整个冈瓦纳北缘的裂解以及基末里陆块的形成并非以前认为的是一个单一的过程，而是自早二叠世Artinskian期开始的一个逐渐裂解的复杂过程。

In the whole gondwana north rim，Qiangtang block of cracking east can and baoshan block，To the west can and pamir of cracking analogy。India plate and the north rim and Oman block of cracking but mainly occurred in the middle Permian。So can judge the Permian gondwana north rim of cracking and the base in the formation of the land mass is not used to think is a single process，But since the early Permian Artinskian period began a gradual cracking of complex process。

　　该项研究是首次用化石资料确定羌塘地块古地理演化的过程，将于近期发表在国际学术刊物《三古》（Palaeogeography, Palaeoclimatology, Palaeoecology）上。

The study is the first fossil material determine the qiangtang block paleogeographic evolution process，In the near future will be published in the international academic journals《Three ancient》（Palaeogeography, Palaeoclimatology, Palaeoecology）on。

　　文章信息：Yi-chun Zhang, Shu-zhong Shen, G.R.Shi, Yue Wang, Dong-xun Yuan, Yu-jie Zhang, 2012. Tectonic evolution of the Qiangtang Block, northern Tibet during Late Cisuralian (Late Early Permian): evidence from fusuline fossil records. Palaeogeography, Palaeoclimatology, Palaeoecology. in press. doi:10.1016/j.palaeo.2012.06.025.

This article information：Yi - chun Zhang, Shu - zhong Shen, G.R.S hi, Yue Wang, Dong - xun Yuan, Yu - jie Zhang, 2012. The Tectonic evolution of the Qiangtang Block, Northern Tibet during Late Cisuralian (Late Early Permian): evidence from fusuline fossil records. Palaeogeography, Palaeoclimatology, Palaeoecology. In press. Doi: 10.1016 / j.p alaeo. 2012.06.025.