The open platform limestones are arranged in the risum - ge ' gyai tarico stratigraphie subprovince , while the restricted platform limestones and terrigenous progradational clastic rocks are observed in the coqen - xainza stratigraphic subprovince in the south and muggar kangri stratigraphic subprovince in the north 早白堊世晚期,盆地以臺地相碳酸鹽巖沉積為主,裂谷帶附近以發(fā)育臺地邊緣礁灘相沉積;裂谷帶兩側(cè)的日松革吉它日錯分區(qū)主要由開闊臺地相灰?guī)r組成;盆地南北部的措勤申扎分區(qū)和木嘎崗日分區(qū)由局限臺地相灰?guī)r和陸源進積碎屑巖組成。
The coqen basin in xizang lies between the bangong - nujiang suture zone and yarlung zangbo suture zone , and once extended northwards and southwards , respectively centred by the qiekan - goicang - asog rift zone as the center of deposition and subsidence during the middle jurassic to the early creatceous . ( 1 ) during the middle - late jurassic , the rift zone was occupied by deep - water turbidites , radiolarian siliceous rocks , shallow - water carbonate rocks , clastic rocks and basic - ultrabasic rocks , while both sides of it by littoral and shallow marine elastic rocks and carbonate rocks 摘要位于班公湖怒江縫合帶與雅魯藏布江縫合帶之間的措勤盆地,在中侏羅世早白堊世期間具有以且坎古昌阿索裂谷帶為沉積、沉降中心向南北兩側(cè)展開的古地理格局:中晚侏羅世時期,裂谷帶內(nèi)由深水濁積巖、放射蟲硅質(zhì)巖和淺水碳酸鹽巖、碎屑巖巖片及基性超基性巖等組成;裂谷帶兩側(cè)由濱淺海相碎屑巖和碳酸鹽巖組成。