Sedimentary physicochemical indicators and typical landscape, landform and sedimentary photos of the Yarlung Zangbo River Basin (July 2019-august 2019)

The data are the typical landscape, geomorphology and sedimentary strata photos obtained by the thematic group in the lower reaches of Yajiang River and Niyang River Basin from July to August 2019, as well as the physical and chemical indexes of loess and river sediments, mainly including: (1) 14C sample sampling and age in the lower reaches of Niyang River; (2) Chronological results of OSL in the lower reaches of Niyang River; (3) XRF of lacustrine sediments and Langou loess in the lower reaches of Niyang River; (4) Magnetic susceptibility of Lamawan lacustrine sediments and Langou loess in the lower reaches of Niyang River; (5) Grain size of Langou loess in the lower reaches of Niyang River; (6) Elements in the lower reaches of Yarlung Zangbo River and Niyang River Basin. The photos mainly show glaciers, rivers, lakes and other landscapes, as well as landslide surface, glacier shear surface and sedimentation.

0 2021-09-09

Geochronology and geochemistry of Yanshanian intermediate-acid rocks in the northern margin of North China and its adjacent areas

The data are the whole rock major and trace elements, Sr-Nd-Pb-Mg isotopic geochemical data, zircon U-Pb age data and Hf isotopic geochemical data and Sulfide sulfur isotope data of Yanshanian intermediate-acid rocks in the northern margin of North China and its adjacent areas. The major data of the whole rock were obtained by XRF analysis, the trace element data were obtained by ICP-MS analysis, and the Sr-Nd-Pb-Mg isotopic data were obtained by MC-ICP-MS analysis. Zircon U-Pb age data were obtained by LA-ICP-MS and SIMS analysis, and Hf isotope data were obtained by MC-ICP-MS analysis. Sulfide sulfur isotope data were obtained by LA-MC-ICP-MS analysis. The above data have been published in high-level SCI journals (Mg isotope data has not been published), and the data are true and reliable. Through the obtained data, we can find out the temporal and spatial distribution of magmatism, the variation of petrochemistry and isotopic composition in the study area, analyze the properties of rock source area, melting conditions and magmatic evolution process in detail, trace the dynamic process of tectono-magmatic process, and analyze the constraints of superposition and transformation of the tectonic domains of the Okhotsk Ocean and the Pacific Ocean on magmatism and mineralization in the area, The time limit from subduction, extinction to mutual transformation of the paleo oceanic crust will provide a key constraint for revealing the relationship between the deep process of Yanshanian movement and magma mineralization.

0 2021-07-02

Major and trace element geochemical data sets of Yanshanian intermediate acid rocks in the northern margin of North China and its adjacent areas

This data is the whole rock major and trace element geochemical data of Yanshanian intermediate acid rocks in the northern margin of North China and its adjacent areas. The main data of the whole rock were obtained by XRF analysis, and the trace element data were obtained by ICP-MS analysis. The above data have been published in high-level SCI journals, and the data are true and reliable. Through the data obtained, we can find out the temporal and spatial distribution of magmatism and the variation law of petrochemical composition in the study area, which plays an important role in tracing the dynamic process of tectonic magmatic process, analyzing the constraints of superposition and transformation of the Okhotsk ocean and Pacific tectonic domain on magmatism and mineralization in the area, and limiting the time limit of subduction, extinction and mutual transformation of the ancient oceanic crust, Finally, it provides key constraints for revealing the relationship between the deep process of Yanshan movement and magmatic mineralization.

0 2021-07-02

Trace elements, major elements, U-Pb dating data and EPMA data sets of some minerals in Fozichong mining area

The Fozichong mining area is divided into syngenetic sedimentary exhalative type and epigenetic skarn type. As the occurrence of Fozichong ore body is accompanied by green layered rock (GSR), the genesis of GSR may play an important role in solving this dispute. This prompted us to conduct a series of petrological investigations, whole rock mineral chemical analysis and zircon U-Pb geochronology of intrusive rocks. The elements related to the ore body, such as Cu and Pb, in GSR decrease from the edge to the core, suggesting that it is the origin of hydrothermal fluid. The Fozichong deposit is a typical representative of stratabound skarn type Pb Zn mineralization system in Yunkai area

0 2021-05-27

The geochemical data set of Jurassic intrusions in southern Gangdese belt, Tibet

This data includes zircon U-Pb isotopic dating, trace geochemistry and Hf isotopic data of the intrusive rocks, as well as major and trace geochemistry and Sr Nd isotopic data of the whole rock. Samples were collected from Xietongmen, Jiacha, xiangbatang, Qulong and other areas in Gangdise belt, southern Tibet. The lithology is dominated by granitic rocks, including granodiorite, granodiorite porphyry, quartz diorite and quartz diorite porphyry. The U-Pb geochronology, trace element geochemistry and Hf isotope data of zircons were obtained by laser ablation inductively coupled plasma mass spectrometry. The major and trace geochemical data of the whole rock are obtained by X-ray fluorescence spectrometry and inductively coupled plasma mass spectrometry. SR Nd isotopic data of rocks were obtained by inductively coupled plasma mass spectrometry (ICP-MS). Through the data obtained, we can define the geochemical characteristics of regional magmatism age and magma oxygen fugacity, and analyze whether it is conducive to the formation of porphyry deposits.

0 2021-05-24

Geochronology and geochemical data of early Paleozoic magmatic rocks in Southern Qiangtang, Tibet

The data are isotopic dating data, zircon HF-O isotopic data, rock whole rock major and trace data, rock whole rock isotopic geochemical data. The samples were collected from the early Paleozoic magmatic rocks in South Qiangtang, Qinghai Tibet Plateau. Radioisotope geochronology data were obtained by analyzing zircon U-Pb isotopes with secondary ion microprobe. HF and O isotopes of minerals were obtained by laser ablation inductively coupled plasma mass spectrometry and secondary ion probe analysis, respectively. The major, trace and isotopic geochemical data of whole rock were obtained by X-ray fluorescence spectrometry and inductively coupled plasma mass spectrometry, and the whole rock isotopic geochemical data were obtained by inductively coupled plasma mass spectrometry. Based on the data obtained, the basement rocks and their formation history of Nanqiangtang are identified.

0 2021-05-22