%0 Journal Article %T APreliminaryStudyofProgressiveMetamorphismintheCountryaroundTienwan,Sikang %J µØÖÊѧ±¨ %P 129-161 %D 1946 %X Itiswell-knownthatafairlylargetractofcountryofSikang(ChineseTibet)isoccupiedbyvariouskindsofmetamorphicrocks;butourknowledgeoftheirnatureandoriginisasyetfarfromcomplete.Inthi8connexion,the %U http://www.geojournals.cn/dzxb/ch/reader/view_abstract.aspx?file_no=19460008&flag=1