This data belongs to U-Pb geochronology data of Hailaer Basin in eastern China, including Pb, 232Th, 238U contents, 207Pb / 206Pb, 207Pb / 235U, 206Pb / 238U ratios and errors, 207Pb / 235U, 206Pb / 238U ages and errors, etc. The data belongs to LA-ICP-MS data, and the precision and accuracy meet the research requirements. The results of geochronology data play an important role in the establishment of Mesozoic stratigraphic framework in Hailaer basin, which lays a good foundation for the Mesozoic tectonic evolution and basin analysis in this area, and has a good application prospect.
ZHU Jichang
The data include the Sims zircon ages of the developed rocks in the Changshan Islands, Eastern Liaoning Province. Zircon Sims zircon U-Pb dating was performed on the cameca ims-1280 secondary ion mass spectrometer, Institute of Geology and Geophysics, Chinese Academy of Sciences. For zircon U-Pb dating, the instrument uses O2 - as the primary ion beam, focusing 20-30 in Gaussian mode or parallel light mode μ The ZrO +, UO2 +, uo +, U +, Pb +, and tho + ions in the samples were extracted by bombarding the surface of the solid samples with the beam spot of m diameter. In U-Pb isotopic dating, zircon reference sample Qinghu was used as internal standard and plese as external standard for isotope fractionation correction. Isoplot software was used to draw age concordance chart. The data have been published in international SCI journals, and the data are true and reliable.
LIN Wei
Based on the collection of GPS and stress data of the Qinghai Tibet Plateau, this paper combs the movement rate and stress deformation system of the Qinghai Tibet Plateau, displays the direction and size of each point through MAPGIS software, and then superimposes it on several main tectonic units of Songpan Ganzi flysch belt, North Qiangtang Changdu Simao plate, South Qiangtang Baoshan block and Gangdise Lhasa block. This paper tries to reflect the similarities and differences of the specific deformation modes of each block under the overall stress of the Qinghai Tibet Plateau, and further define the specific deformation style and deformation state of each local area. This is of great significance for a deep understanding of the Cenozoic deformation model of the Qinghai Tibet Plateau, as well as for guiding local disaster prevention and relief and engineering construction.
WANG Shifeng
The data are AMS data of PENGGUAN complex. We used a portable gasoline rig to drill 5-7 cores at each sampling point, with an interval of 1 m to 2 m, and each core is about 3-6 cm long. Each core pillar was oriented by magnetic compass and solar compass, and magnetic declination (7 °) Correction of the error. In order to avoid the interference of core geometry on magnetic fabric, each core column is cut into a standard column with a diameter of 2.5 cm and a length of 2.2 cm. The AMS tests were carried out in the agico kappabridge (mfk1) low field condition of paleomagnetism laboratory, Institute of Geology and Geophysics, Chinese Academy of Sciences. The statistical analysis of AMS is mainly completed with the help of anisoft 4.2. The data has been officially published in tectonics, and the quality is true and reliable.
XUE Zhenhua
Qiangtang Basin is located between the Hoh Xil-Jinsha River tectonic belt and the Bangong-Nu River tectonic belt, is an important petroleum-bearing basin in the Qinghai-Tibet region of China. The basin has multiple sets of source rocks developed in the Mesozoic. The Triassic strata are widely distributed in the basin. Among them, the Upper Triassic has a large thickness and is considered as an important source rock, however, there is still a lack of understanding of its distribution, hydrocarbon generation potential, and major controlling factors. In this paper, the Upper Triassic source rocks in the Qiangtang Basin were studied, and the key samples were taken in the Quemo Co area of the Northern Qiangtang Basin, which was less studied previously. The source rocks were evaluated based on the geochemical characteristics of the samples, and the provenance input and depositional environment of the source rocks were analyzed according to the characteristics of their biomarkers. Combining the results of previous studies on the source rocks of the Upper Triassic Xiaochaka Formation in the Qiangtang Basin, the distribution characteristics, hydrocarbon generation potential, and the controlling factors of the source rocks of the Upper Triassic in the Qiangtang Basin were studied. The analysis results of the samples of the Upper Triassic Bolila Formation and the Bagong Formation source rocks collected in the Quemo Co area of the Northern Qiangtang Basin indicate that the TOC range of the Bolila Formation limestone is 0.03%~0.53% with an average of 0.20%, and the TOC range of the Bagong Formation mudstone is 0.57%~1.78% with an average of 1.04%. Both have reached the effective source rock grade, The source rocks of the Bolila formation reaches the level of medium source rock grade, and the organic matter abundance of the source rocks of the Bagong Formation is higher than that of the Bolila Formation and reach the medium-good source rock grade. The organic matter types of the source rocks are type II 1 , and the Tmax of the organic matter are all higher than 455°C, R O of all samples are 1.3% to 2.0%, the organic matter maturity achieve high mature stage. The organic matter of the source rocks is both the marine aquatic organism and the terrestrial plant, which is a mixed source. The source rocks sedimentary environment should be a reducing environment. The salinity of water body may be the salt water environment. Combining with previous research results, the authors evaluated the source rocks of the Upper Triassic Xiaochaka Formation in the Qiangtang Basin. The organic matter abundance of the argillaceous source rocks can basically reach the medium-good source rock level, carbonate source rocks organic matter abundance basically reach the poor source rock level. The types of the organic matter in carbonate source rocks are mainly Type II 1 and individually Type I. The organic matter types of the argillaceous source rocks are Type II 2 and Type III, and a small amount of the Type II 1 source rocks. The maturity of the source rocks is generally high-mature and over-mature stage, with only a few areas showing mature stage. The argillaceous source rocks are distributed in the Tumen-Sewa area, Zaxiahe-Ganggairi and Woruo Moutain-Geladandong area in the North and South Qiangtang Depression. Carbonate source rocks are mainly distributed in the South Qiangtang Depression. Affected by the regional tectonic movements, the main source rock beds in the Qiangtang Basin have undergone two oil and gas generation processes during the burial process. The Upper Triassic Xiaochaka Formation entered the hydrocarbon generation threshold in in the late Lower Jurassic to early Middle Jurassic and entered the first oil generation period. The basin experienced the last period of intense deformation and shrinkage in the Late Oligocene-Early Miocene and entered the second hydrocarbon generation period.
HAN Zhongpeng
This data belongs to zircon U-Pb geochronology data of early Mesozoic strata in Yanshan tectonic belt, including Pb, 232Th, 238U contents, 207Pb / 206Pb, 207Pb / 235U, 206Pb / 238U ratios and errors, 207Pb / 235U, 206Pb / 238U ages and errors, etc. Zircon U-Pb dating was performed in the ion probe Laboratory of Institute of Geology and Geophysics, Chinese Academy of Sciences using cameca ims-1280hr. The U-Th-Pb isotopic ratios were determined by standard zircon pl é Sovice correction was achieved. The U content was obtained by standard zircon 91500 correction. Simultaneous interpreting of the standard deviation and the internal accuracy of the single point test was achieved by the standard sample of long term monitoring, and the single point error was obtained. The accuracy of the standard sample Qinghu was used as the unknown sample monitoring data. The measured 204Pb value is used for ordinary Pb correction. The error of isotope ratio and age is 1 σ。 The harmonious age and average age were calculated by using the isoplot software. The results of geochronology data are published in Earth Science Reviews. The data quality is reliable. It plays an important role in establishing the early Cenozoic geochronology framework and regional stratigraphic correlation of Yanshan structural belt, and lays a foundation for further analysis of Mesozoic basin evolution history, which has a good application prospect.
WU Guoli
13C and 18O isotopic test results of late Pleistocene lacustrine mudstone deposits in Dunhuang basin and some horizons in Jiuxi basin since Miocene. The testing unit is the Key Laboratory of mineralization and resource evaluation, Institute of mineral resources, Chinese Academy of Geological Sciences, and the instrument used is mat 253 gas isotope mass spectrometer. The data quality is good and within the error range. The 13C and 18O isotopic data of Dunhuang basin indicate that the lacustrine sediments in Dunhuang basin were in the late Pleistocene, and the overall climate was arid. The 13C and 18O isotopic data of Jiuxi basin indicate that although there are slight differences in different regions of Jiuquan Basin since Miocene, the climatic conditions are basically the same. It has been under relatively dry climatic conditions for a long time, while the Holocene profile shows an obvious change trend due to a short time range, which may indicate that the climate has fluctuated greatly since Holocene.
ZHANG Bo
The rock assemblages of basic rocks, ultrabasic rocks and other melanges in the Bitu area of Zuogong are found in the field investigation, indicating the existence of tectonic melange accumulation. Major and trace elements and Sr Nd isotopes were completed in the Key Laboratory of deposit geochemistry, Institute of geochemistry, Chinese Academy of Sciences. Among them, the main elements are analyzed by pw4400 X-ray fluorescence instrument, and the contents of 10 element oxides are determined; Trace elements are tested by ICP-MS inductively coupled plasma mass spectrometer. ICP-MS is manufactured by Agilent company in Tokyo, Japan, and the model is Agilent 7700x. The analysis method is the same as that of Zhang Xin, etc. According to the analysis results of standard sample gbpc-1de, the analysis error is less than 5%. The test basis is GB / T 17672-1999.
WANG Shifeng
The data include major and trace geochemical data and zircon U-Pb isotope data of Silurian xuniwusu formation, Devonian Xilinguole complex and Permian Zhesi formation in central Inner Mongolia. The major element geochemical data of the whole rock are obtained by XRF analysis, the trace element geochemical data are obtained by ICP-MS, and the zircon U-Pb isotopic data are obtained by LA-ICP-MS. This set of data has been published in Acta Geologica Sinica (English Edition), which is a geoscience SCI journal. This set of data can effectively constrain the evolution process of regional Paleozoic geological structure.
LI Yilong
Based on the research progress of strata, rocks and structures in Sanjiang area, especially the systematic study of Jinshajiang suture zone, Bitu suture zone and Bangonghu Nujiang suture zone, this area is divided into several main structural units: Songpan Ganzi flysch zone, North Qiangtang Changdu Simao plate, South Qiangtang Baoshan block and Gangdise Lhasa block; On this basis, Songpan Ganzi block is further divided into three sub units: Bayankala block, Ganzi Litang lake basin system and Zhongzan block; The North Qiangtang Changdu Simao plate is subdivided into five units: Jinshajiang paleoTethys belt, Changdu terrane, Lanping Simao terrane, Lincang volcanic rock belt and Bitu paleoTethys belt; The Nanqiangtang Baoshan tectonic system is subdivided into three tectonic units: Nanqiangtang block, Baoshan block and Bangong Lake Nujiang middle Tethys belt.
WANG Shifeng
This data set contains zircon U-Pb dating, zircon Hf isotope, whole rock principal and trace elements, and whole rock SR Nd isotope data of Cambrian and cryogenian granites in Anduo area, Qinghai Tibet Plateau, from Zhai Qingguo team of Institute of geology, Chinese Academy of Geological Sciences. The data are of good quality and can be used for the study of the early formation and evolution of the Qinghai Tibet Plateau and the paleogeographic reconstruction of the Precambrian supercontinent. The main analytical instruments used include: Zircon U-Pb age is obtained by laser ablation – inductively coupled plasma – mass spectrometry (LA-ICP-MS), and zircon Hf isotope is obtained by a NWR 213nm laser ablation microprobe attached to a multicollector ICP – MS (Neptune plus), The major and trace elements in the whole rock were obtained by X-ray fluorescence Shimadzu (xrf-1800) and analyticjena pqms elite ICP – Ms.
TANG Yue TANG Yue
The data are U-Pb dating data, mineral trace geochemical data, whole rock major trace geochemical data and isotopic geochemical data of high Ba SR intrusives. Samples were collected from quartz diorite and diorite of high Ba SR intrusion in North Qinling block. The U-Pb isotopic data of zircon were obtained by laser ablation inductively coupled plasma mass spectrometry. The major and trace geochemical data of the whole rock were obtained by X-ray fluorescence spectrometry and inductively coupled plasma mass spectrometry. The whole rock isotopic geochemical data were obtained by multi receiver inductively coupled plasma mass spectrometry. The obtained data can reveal the petrogenesis of different high Ba SR intrusions and limit the formation time of corresponding tectonic settings.
REN Long
The data are the radioisotope U-Pb dating data, whole rock major and trace geochemical data and isotopic geochemical data of the payangazu complex. Samples were collected from quartz diorite and granodiorite of payangazu complex in Mandalay, central Myanmar. The U-Pb isotope of zircon was analyzed by laser ablation inductively coupled plasma mass spectrometry. The major and trace geochemical data of the whole rock were obtained by X-ray fluorescence spectrometry and inductively coupled plasma mass spectrometry. The whole rock isotopic geochemical data were obtained by multi receiver inductively coupled plasma mass spectrometry. The data obtained can reveal the petrogenesis and tectonic setting of the payangazu complex.
LI Kaixuan
This data belongs to U-Pb geochronology data of Mesozoic strata in Huanghua depression, Bohai Bay Basin, inner North China Craton, including Pb, 232Th, 238U contents, 207Pb / 206Pb, 207Pb / 235U, 206Pb / 238U ratios and errors, 207Pb / 235U, 206Pb / 238U ages and errors, etc. Zircon U-Pb dating was carried out by using the second upgraded excimer laser ablation system (geolas HD, 193nm wavelength) and laser ablation inductively coupled plasma mass spectrometry (ICP-MS) with quadrupole (Agilent 7900). The laser frequency is 5Hz and the beam size is 30 nm μ m。 The international standard sample 91500 was used as the external calibration standard for age calculation. Nist610 was used to calculate the concentrations of uranium, thorium and lead, and gj-1 was used to monitor the isotopic ratios The U-Pb isotopic ratios were calculated by cal10.8, and the common Pb was corrected by compb # 3-18. The age of particles younger than 1000mA is based on their 206Pb / 208U ratio. The analysis with > 10% or < – 5% inconsistencies was excluded. The acceptable inconsistencies and accuracies of the analysis were listed in the table below. The harmonic age and the mean age were calculated by isoplot software. The uncertainty of the mean age was 2 σ, The individual analysis report is 1 σ。 The results of geochronology data are published in Science China earth science, and the data quality is reliable. It plays a very important role in the establishment of Mesozoic stratigraphic framework in Bohai Bay Basin covered by Cenozoic. It lays a good foundation for Mesozoic tectonic evolution and basin analysis in this area, and has a good application prospect.
ZHU Jichang
The Wuyu Basin is bounded by the Gangdese Mountains to the north and the Yarlung Tsangpo River to the south, and is a representative basin to study the Cenozoic tectonism of the southern Tibet. The sedimentary strata in the Wuyu Basin include the Paleocene-Eocene Linzizong Group volcanics and the Oligocene Rigongla Formation (Fm.) volcanics, the Miocene lacustrine sediments of the Mangxiang Fm. and Laiqing Fm. volcanics, the late Miocene-Pliocene Wuyu Fm., and the Pleistocene Dazi Fm. Five sandstone samples from the Mangxiang Fm., Wuyu Fm. and Dazi Fm. and one modern Wuyu reiver sand sample were collected for detrital zircon U-Pb dating using the LA-ICP-MS method. Detrital zircon U-Pb ages in the Mangxiang Fm. show a large cluster at 45-80 Ma; those in the Wuyu Fm. show a large cluster at 8-15 Ma and a subsidiary cluster at 45-70 Ma; those in the Dazi Fm. show three large clusters at 45-65 Ma, 105-150 Ma and 167-238 Ma; and those in modern Wuyu river show a large cluster at 8-15 Ma and a subsidiary cluster at 45-65 Ma (Figure 1). Late Cretaceous-early Eocene zircons in all samples are consistent with the most prominent stage of magmatism of the Gangdese Mountains; the 8-15 Ma zircons in the Wuyu Fm. and modern Wuyu river are consistent with the magmatism of the Laiqing Fm.; and the Triassic-Jurassic zircons in the Dazi Fm. are consistent with the magmatism of the central Lhasa terrane. The results of detrital zircon U-Pb ages and sedimentary facies analyses in the Wuyu Basin indicate that the southern Tibetan Plateau suffered multi-stage tectonism-magmatism since the India-Asia collision: (1) Paleogene Linzizong Group-Rigongla Fm. volcanics; (2) tectonism-magmatism at ~15 Ma ended the lacustrine sediments of the Mangxiang Fm. and resulted in volcanism of the Laiqing Fm.; (3) tectonism at ~8 Ma resulted in the volcanic rocks of the Laiqing Fm. becoming one of the main provenances for the overlying Wuyu Fm.; (4) the Wuyu Basin formed braided river and received sediments from the central Lhasa terrane to its north at ~2.5 Ma. The geomorphic pattern of the southern Tibet has gradually formed since the Quaternary.
MENG Qingquan MENG Qingquan
This data includes main and micro geochemical data of the whole rock, 40Ar / 39Ar dating data of phlogopite, and Sr-Nd isotope data of the whole rock. The samples were collected from the edge of the Ramba dome in eastern Tibet. The argon isotope of phlogopite uses the stage heating method, and the plateau age and isochron age are calculated by ArArCALC software; The major elements in the whole rock were analyzed by X-ray fluorescence spectrometry (XRF); Trace elements in the whole rock were measured by Quadrupole Inductively coupled plasma mass spectrometer (Q-ICPMS); Sr-Nd isotopic composition was obtained by MC-ICP-MS. The data obtained show that the age of the phlogopite plateau is 13.1 ± 0.18 Ma, which is consistent with the inverse isochron age; The ultrapotassic melt comes from the partial melting of lithospheric mantle in the Indian continent, and the source depth is shallow, so it should be a spinel stable area.
LIU Zhi-Chao
This dataset is the China-Pakistan Economic Corridor and the active fault zone of the Tianshan Mountains (2013). The obtained geological map is a 1:2.5 million geological map, covering the China-Pakistan Economic Corridor and the Tianshan Mountains. Geological structural maps can provide a digital space platform for the informatization of the national economy, and provide information services for national and provincial departments for regional planning, geological disaster monitoring, geological surveys, prospecting and exploration, and macro decision-making. The source of the obtained geological map data is to scan the paper map first, then perform georeferencing on the ArcGIS 10.5 platform, and then obtain it by vectorization. The storage format is vector data, and the spatial granularity is divided into regions.
ZHU Yaru
This data is the detrital zircon data of the upper Shihezi Formation of the middle and Late Permian on the southwest margin of the North China plate, which is the experimental data. More than 5kg sandstone samples were collected in the field. Zircon was separated from the samples and made targets by heavy liquid and magnetic separation technology. Single grain zircon LA-ICP-MS microanalysis was carried out in the State Key Laboratory of continental dynamics of Northwestern University. The sample collection, pretreatment and experimental process are carried out according to strict standards, and the data quality is reliable. The results show that the zircon ages range from 254 to 2700 Ma, and the main peak ages are ~ 320 Ma, ~ 1765 Ma and ~ 2495 Ma, respectively. Combined with the regional geological background and sedimentological data, it is considered that the peak age of ~ 320mA can come from the northern margin of the North China plate; This also suggests that the paleotopography of the upper Shihezi Formation was high in the north and low in the south. The provenance information reflected by the middle Late Permian detrital zircon data on the southwest margin of the North China plate can provide data support for reconstructing the paleogeography of the North China plate at that time.
LIANG Jiwei 梁积伟
This data includes the main trace geochemistry and Sr-Nd isotope data of the whole rock. The samples were collected from four rock bodies in the West Kunlun Pamir area. The main geochemical data of the whole rock are obtained by X-ray fluorescence spectrometer, the trace elements are obtained by inductively coupled plasma mass spectrometer, and the Sr-Nd isotopic data of the whole rock are obtained by multi-collector inductively coupled plasma mass spectrometer. Through the obtained data, the magma source areas are defined as the mixing of Mesoproterozoic ancient basement rocks and juvenile crustal materials, the mixing of meta-igneous rocks, and meta-sedimentary rocks, and Mesoproterozoic ancient basement rocks, which help understand regional magmatism and tectonic evolution.
YIN Jiyuan
This data set includes major and trace elements and zircon U-Pb isotope data of Mesozoic sedimentary rocks in Baoshan block, Tengchong, Yunnan Province. The sampling time is 2018, and the area is near lameng Town, Baoshan District, Tengchong, Yunnan. The rock samples include 8 sedimentary rock samples. This data provides key information for understanding the evolution of the middle Tethys structure between Tengchong and Baoshan, and limits the closing time of the middle Tethys ocean to the late Jurassic, which is of great significance for discussing the evolution process of the Tethys structure. The whole rock major and trace elements of rock samples were tested by fluorescence spectrometer (XRF) and plasma mass spectrometer (ICP-MS), and zircon U-Pb was dated by laser ablation plasma mass spectrometer (LA-ICP-MS). The testing units include Institute of Geology and Geophysics, Chinese Academy of Sciences and Institute of Qinghai Tibet Plateau. The related articles of this data set have been published in the Journal of Asian Earth Sciences, and the data results are true and reliable.
ZHANG Jiuyuan
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