Citation: | 2015. NewDivisionofTectonic-StrataSuperregioninChina. Earth Science, 40(2): 206-233. doi: 10.3799/dqkx.2015.016 |
Asawhole,thecontinentofChinaisgroupedbyPan-Cathaysianblocks,LaurasiaandGondwanacontinentalmargins and3oceans(Paleo-AsianOcean,TethysOceanandPacificOcean).Indetail,thecontinentofChinaisgrewupby3blocksor platforms(NorthChina,TarimandYangtze)and8orogenicbelts (Altai-InnerMongolia-Daxinganling,Tianshan-Junggar- Beishan,Qinling-Qilian-Kunlun,Qiangtang-Sanjiang,Gangdisê,Himalaya,Cathaysia,EasternTaiwan)duringtheprocessof disappearingofoceaniccrustsandthecolliding-growingofcontinentalcrusts.Intheorogenicbelts,6convergentcrustalconsumptionzones( Ertix-XarMoron,SouthTianshan,Kuanping-Foziling,Bangonghu-Shuanghu-Nujiang-Changning-Menglian, Brahmaputra,Jiangshao-Chenzhou-Qinfang)havebeensubdivided.Correspondingly,thestrataofthecontinentofChinaare subdividedinto17tectonic-stratasuperregionswhichtectonicallybelongto3blocksorplatforms,6convergentcrustalconsumptionzonesand8orogenicseries. Thisdivisionismainlybasedon9keyaspects,includingthedifferenceoftectonicenvironmentandtectonicevolutionamongblocks, convergentcrustalconsumptionzonesandorogenicbelts,thetimingwhenthe oceaniccruststransferringintocontinentalcrusts,thefeatureofpaleobiogeographandthetypesofstrata,etc..