邦多区幅、措麦区幅地质调查新成果及主要进展

New results and major progress in regional geological survey of the Boindoi District and Comai sheets

查证测区内发育晚二叠世敌布错组,将原中侏罗世达雄群修定为二叠纪地层,完善与丰富了二叠纪地层系统。将原“木嘎岗日群”修定为沙木罗组。获得了一批重要的古生物和同位素年龄资料,重新修定了班戈-八宿地层分区与隆格尔-南木林地层分区的界线。新发现晚白垩世中—基性杂岩、始新世造山型环斑花岗岩及新近纪白榴石响岩。新发现阿索构造混杂岩带和具特大型远景的富磁铁矿、具中型远景的铜多金属矿各1处。

The development of the Late Permian Dibuco Formation has been checked and verified and the original Middle Jurassic Dawaxung Group is redefined as Permian strata, thus improving and enriching the Permian stratigraphic system. The original 'Muggar Kangri Group' is redefined as the Smuluo Formation. A number of important paleontological and isotope age data have been obtained and on that basis the boundary between the Baingoin-Baxoi and Namling stratigraphic areas is redefined. Late Cretaceous intermediate-basis complexes, Eocene orogenic rapakivi granite and Neogene leucite phonolite are found. The Asog tectonic mélange belt and one rich magnetite deposit with superlarge deposit prospects and one copper polymetallic deposit with intermediate deposit prospects have been found.