Samarium neodymium direct dating of fluorite mineralization
To make things even better, we don't just focus around adult cams; you can even chat with others simply to have a conversation.We make it easy for you to find the type of person that you want to have an adult chat with.However, Sr released from fluid inclusions generally reveals lower initial Sr (T=200 Ma) values of Indosinian-Yanshanian granitoids, both at Woxi and LJP.
Sr isotopes of scheelite from these two deposits show similar relations to host / nearby rocks, in that Sr (T=200 Ma) ratios of ~0.721 for LJP scheelite agree with values ranging between 0.718 – 0.726 for granitoids, whereas these ratios are much higher (i.e.
0.745) for scheelite from Woxi and correspond to the Sr (T=200 Ma) ratio range of 0.743 – 0.749 for Precambrian host slates.
Crushing experiments to release inclusion fluids from gangue quartz and sulfides deposited during later stages of ore deposition in both deposits failed to provide accurate and geologically meaningful two-point (fluid-residue) tie lines in Rb-Sr isochron diagrams.
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This paper presents Nd-Sr-Pb isotope data on scheelite, inclusion fluids and residues of gangue quartz, and sulfides from the W-Sb-Au ore deposits at Woxi and Liaojiaping (LJP) in the Xuefeng Uplift Belt (XUB), Western Hunan, China.
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