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生物通
6月
柴达木地块北缘Grenvillian期S型花岗岩的成因及其对Rodinia超大陆构造 ...
本研究针对柴达木地块在Rodinia超大陆中的构造归属争议,通过锆石U-Pb定年、Lu-Hf同位素、全岩地球化学及相平衡模拟等技术,揭示北柴达木造山带Yuka花岗片麻岩(905–908 Ma)为S型花岗岩,源于古元古代变沉积岩部分熔融。研究提出柴达木地块可能位于西南 ...
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