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正 INTRODUCTION The existence of a Palaeozoic metamorphosed volcanic series of intermediate to acid composition in E. Sikang had already been noticed by the senior writer 相似文献
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正 The geology along the route from Luting',Tanchang~2,Yungching~5 toYaan~4 was first investigated by H.C.T'an and C.Y.Lee [6].Their resultappeared in the Atlas for "the Geology of Szechuan Province and Eastern 相似文献
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