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

Zircon U-Pb and trace element data, major oxide and trace element data and major element data of pyroxene in gabbro of some plutons in southern qinhang junction zone

Based on the comprehensive analysis of the Neoproterozoic and early Paleozoic geological evolution of the Qinghai Tibet Plateau, LA-ICP-MS was used to determine the zircon U-Pb age of the rock mass, XRF was used to determine the major oxide and trace element data of the rock mass, and EPMA was used to determine the major element data of the pyroxene in the gabbro, We can obtain the formation age and geological evolution characteristics of the pluton. Combined with previous studies, regional geological characteristics and geochemical data, this study suggests that the Yangtze and Huaxia blocks may have been sutured along the qinhang fault zone, forming the earliest Neoproterozoic back arc system. The early Paleozoic basic rocks are mainly the remelting products of Neoproterozoic subduction mantle.

0 2021-06-08

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

LA-ICP-MS data of sphalerite from Lishan Pb Zn Cu polymetallic deposit, Hunan Province

The data set is LA-ICP-MS data of Sphalerite in Lishan Pb Zn Cu polymetallic deposit, Hunan Province. The experimental method was la-icp-ms. The test analysis was completed in Nanjing poly spectrum testing technology Co., Ltd. The 193 nm ArF excimer laser ablation system is manufactured by Teledyne CETAC technologies, and its model is analyte excite; The model of Quadrupole Inductively coupled plasma mass spectrometer (ICP-MS) is Agilent 7700x. The deep UV beam generated by the excimer laser generator is focused on the sulfide surface through the homogenized optical path, the energy density is 3.5 J / cm2, and the beam spot diameter is 25 ~ 40 μ m. The frequency is 6 Hz and the ablation time is 40 seconds. The tested elements include 55Mn, 57Fe, 59Co, 60Ni, 65Cu, 66zn, 69Ga, 72ge, 75as, 77Se, 107ag, 111Cd, 118sn, 121Sb and 125Te. The calibration of trace elements was carried out by using the U.S. Geological Survey sulfide briquette mass-1 and basaltic molten glass gse-1g, and the data processing was completed by using the software icpmsdata cal. This data can provide data support for future geochemical model analysis of Lishan Pb Zn Cu polymetallic deposit in Hunan Province. The above data have been published in EI high-level journals, and the data are true and reliable. The data is stored in Excel.

0 2021-05-26

Data set of trace elements, sulfur and lead isotopes in KEKETALE lead zinc deposit

The influence of deformation and metamorphism of post volcanic massive sulfide on the trace elements and sulfur lead isotopic composition of sulfide is still unclear. The Keketale VMS Pb Zn (- Ag) deposit provides an opportunity to solve the above problems; Five ore samples from No.7 and No.9 orebodies were crushed and screened for lead isotope analysis of bulk minerals, 17 polished thick sulfide samples were used for in-situ trace element and sulfur lead isotope analysis, 66 trace element determination points were analyzed, and 25 sulfur isotope points were determined; A total of 18 point pairs of different minerals were selected for lead isotope analysis, and LA-ICP-MS method was used

0 2021-05-26

Rock geochemistry data of Fujian Zijinshan (~105 Ma)

This data set comes from the following papers: 1. Bai, Z. - J., Zhong, H., Hu, R. - Z., Zhu, W. - g., 2020. Early sulfur saturation in arc volcanic rocks of southern China: implications for the formation of CO massive porphyry – epichermal Cu – Au deposits. Geochemica et cosmochemical Acta, 280:66-84. The major and trace data, PGE and Au contents of the whole rock limit the crystallization differentiation process and sulfide saturation history of the magma. Furthermore, the contribution of sulfide re dissolution to the mineralization of porphyry shallow geothermal Cu Au deposits is revealed. The data is from the paper table. 2. Feng, Z. - Z., Bai, Z. - J., Zhong, H., Zhu, W. - g., Zheng, S. - J., 2020. Genesis of volcanic rocks in the Zijinshan ore district, SE China: implications for porphyry epithermal mineralization. Minerals, 10 (2): 200, Zircon HF-O isotope limits the source characteristics, magmatic properties and differentiation evolution process of volcanic rocks, and further reveals the metallogenic potential of magmatism in this period.

0 2021-05-25

LA-ICP-MS data of pyrite and chalcopyrite from Jingchong co Cu polymetallic deposit, Hunan Province

The table includes the data of laser ablation plasma mass spectrometry (LA-ICP-MS) of pyrite and chalcopyrite from Jingchong co Cu polymetallic deposit in Hunan Province. The experimental method was la-icp-ms. The analysis was completed in the National Geological Experiment and testing center. The analytical instrument was Finnigan element 2 ICP-MS with nwr193 nm laser ablation system. In the experiment, helium was used as carrier gas, and the diameter of laser spot was 35 μ m. The pulse frequency is 10 Hz, the laser energy is 80%, the analysis time of each point is 60 s, including 20 s background test and 40 s sample signal. The tested elements include 34S, 57Fe, 59Co, 60Ni, 65Cu, 66zn, 75as, 82se, 96Mo, 107ag, 115In, 118sn, 121Sb, 208Pb, 209bi, etc. The USGS sulfide standards mass1, nist610 and nist612 were used as the combined external standard, kl2g (one of the silicate standard series mpi-ding) as the monitoring standard, and the Fe content analyzed by EPMA as the internal standard. The above data have been published in EI high-level journals, and the data are true and reliable. The data is stored in Excel.

0 2021-05-24

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