Sulfide S isotope data set of Yanshanian intermediate acid rocks in the northern margin of North China and its adjacent areas

This data is sulfide sulfur isotope data of Yanshanian intermediate acid rocks in the northern margin of North China and its adjacent areas. Sulfide S isotope data were obtained by la-mc-icp-ms analysis. The S isotope data of sulfide has not been published, and the data are true and reliable. The s isotopes of sphalerite and pyrite can define the variation law of S isotopic composition in the study area. A detailed analysis of the properties of rock source area, melting conditions and magmatic evolution process is of limited significance for tracing the dynamic process of tectonic magmatic process

0 2021-09-03

Geochemical data set of typical Fe-REE formation and carbonatite type REE deposits in China (2017-2021)

The data mainly come from typical iron rare earth formation and carbonate type rare earth deposits in China, such as Bayan Obo rare earth deposit in the north, Qinling orogenic belt in the middle, Mianning Dechang rare earth deposit belt in the southwest and Kangdian area. In situ U-Pb or U-Th-Pb dating, major and trace elements of whole rock, major and trace elements of minerals in situ, sr-nd-o-s isotopes and temperature measurement of fluid inclusions have been carried out for the rocks and ores in these deposits. The major elements of whole rock are mainly determined by XRF, trace elements of whole rock are mainly determined by ICP-MS, U-Pb and U-Th-Pb dating and in-situ trace elements of minerals are mainly obtained by LA-ICP-MS, major elements of minerals are mainly obtained by EPMA, and sr-nd-o-s isotopes of minerals are mainly obtained by tims, Sims and la-mc-icp-ms, The temperature measurement of fluid inclusions is mainly obtained by hot and cold stage and laser Raman spectroscopy. Based on these data, we mainly discuss: (1) the formation mechanism and deposit model of iron rare earth ore deposits( 2) The shallow characterization of deep mineralization of Fe REE constructive REE deposits( 3) Shallow characterization of deep mineralization of alkaline carbonatite type REE deposits( 4) Metallogenic potential prediction of typical mineralization anomaly area.

0 2021-07-01