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1.The Rb-Sr isochron ages of 719 Ma and 726. 6 Ma obtained respectively from biotite schist-staurolite schist and plagioclase-hornblende schist indicate that basement metamorphic rocks in Xiangshan area must be attributed to Neoproterozoic rather than Caledonian.
获得相山地区黑云母片岩－十字石片岩的Rb－Sr等时线年龄值为719Ma，斜长角闪片岩的Rb－Sr等时线年龄值为726．6Ma，表明相山基底变质岩属新元古期变质岩而不是加里东期变质岩。收藏指正
2.This study recognized that original rocks of the felsic metamorphic rocks from a key horizon (termed K and K_S) in Guangchangling Archean Banded Iron Formation are tuffaceous intermediate acidic volcanic lava for biotite-quartz-albite gneiss (K) and tuffaceous sedimentary rock for garnet-mica-quartz schist (K_S) respectively.
弓长岭太古代条带状硅铁建造中的长英质变质岩为该地层的标志层(K和K_S层)。 原岩恢复表明二矿区黑云母石英钠长变粒岩(K层)为含火山灰的中酸性火山熔岩;收藏指正
3.Also found in the belt are phlogopite tremolite schist, biotite (-bearing) plagioclase amphibolite, dioritic gneiss, meta-quartz dioritic rock, fine-grained trondhjemite, adamellite, pegmatitic vein.
此外还有金云母透闪石岩、(含)黑云斜长角闪岩、闪长质片麻岩、变石英闪长质岩石、细粒奥长花岗岩、二长花岗岩、伟晶岩脉等。收藏指正
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