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Timing and Nature of the Jinshajiang Paleo-Tethys: Constraints from Zircon U-Pb Age and Hf Isotope of the Dongzhulin Layered Gabbro from Jinshajiang Ophiolite Belt, Northwestern Yunnan
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摘要

    

The Jinshajiang ophiolite belt is generally regarded as one of the Paleo-Tethys sutures in northwestern Yunnan. Zircon U-Pb age and Hf isotope of one layered gabbro collected from Dongzhulin in the Jinshajiang ophiolite belt were studied,  aiming to constrain the timing and nature of the Jinshajiang Paleo-Tethys oceanic basin. Consequently, the Jinshajiang Paleo-Tethys was not the main ocean of the Paleo-Tethys, but an important branch of the Paleo-Tethys that once separated the Zhongzan-Zhongdian block and Changdu-Simao block.

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