%0 Journal Article %T APreliminaryNoteonX-andT-shapedJoints %J µØÖÊѧ±¨ %D 1944 %X Jointsarethemostprevalentminorfracturesinrocks.Atfirsttheymaygiveusanimpressionofbeinghazardousinarrangement,butcarefulobservationoftenshowsthattheyreallyoccuraccordingtoacertainrule.Theyareimportantintectonicstudy,becausethroughthemthestress-orientati %U http://www.geojournals.cn/dzxb/ch/reader/view_abstract.aspx?file_no=1944Z209&flag=1