The data of Cenozoic plant macrofossils on the Qinghai Tibet Plateau includes leaves, seeds and fruits. It includes Latin and Chinese names of families, genera and species, times, places of origin, morphological descriptions, discussions, specimens and references. The species names are assigned according to the original literature. For fossil records revised by later research, the revised records were chosen; The age of the origin (fossil site) is assigned according to the latest literature. The terms and description paradigm of leaf shape description are referred to the book "Leaf Structure Manual"; The length, angle, and other measurement data in the description are derived from the original literature. The fossil records of the document are sorted alphabetically by Latin initials of families and genera. The data can provide important clues for studying the coupling relationship between the environmental climate changed and the evolution of vegetation and plant diversity in the Cenozoic Qinghai Tibetan Plateau.
ZHOU Zhekun , LIU Jia , CHEN Linlin , ROBERT Spicer , LI Shufeng , HUANG Jian , ZHANG Shitao , HUANG Yongjiang , JIA Linbo , HU Jinjin , SU Tao
(1) The data content is the stress monitoring data of the high slope of zhala hydropower station, including the stress data of the automatic monitoring of the high slope of zhala hydropower station, which has certain guiding significance for the stability of the slope of zhala hydropower station and can provide data support for disaster prevention and reduction of zhala hydropower station; (2) The data comes from the automatic transmission of automatic monitoring equipment, and is automatically interpreted and processed by the software of monitoring and early warning platform to finally generate the data in Excel; (3) The data transmission is stable and the quality is high, which can provide a basis for the slope stability of zhala hydropower station; (4) The data can reflect the stress variation of the high slope of zhala hydropower station, and has a wide application prospect.
XU Kunzhen
(1) The data content is the deep displacement monitoring data of the high slope of zhala hydropower station, including the deep displacement data of the automatic monitoring of the high slope of zhala hydropower station, which has certain guiding significance for the stability of the slope of zhala hydropower station and can provide data support for disaster prevention and reduction of zhala hydropower station; (2) The data comes from the automatic transmission of automatic monitoring equipment, and is automatically interpreted and processed by the software of monitoring and early warning platform to finally generate the data in Excel; (3) The data transmission is stable and the quality is high, which can provide a basis for the slope stability of zhala hydropower station; (4) The data can reflect the deep displacement change of the high slope of zhala hydropower station, and has a wide application prospect.
XU Kunzhen
We have studied the Petrotectonic attributes of granites distributed in a large area in the North Lancangjiang structure in Bitu area. The major and trace elements and Sr Nd isotopes have been 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%. MC-ICP-MS double focusing magnetic mass spectrometer with Neptune plus model is used for isotope test experiment. The test basis is GB / T 17672-1999.
WANG Shifeng
The data are the detrital zircon ages of the late Cretaceous early Cenozoic strata in Sichuan Basin, Xichang Basin, Huili basin and Chuxiong Basin on the eastern margin of the Qinghai Tibet Plateau; All detrital zircon samples collected in this study are sandstone. The crushing and zircon selection of samples were completed in Langfang Chengxin Geological Service Co., Ltd; Zircon U-Pb dating was done at the State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). At least 200 zircon grains were randomly selected to adhere to double-sided adhesive, and were poured into the laser sample target with epoxy resin. All samples were ablated by using a laser beam with a diameter of 28μm, a frequency of 10 Hz and laser energy density of 4.0J/cm 2 .
ZHANG Huiping
This database includes slope, aspect and digital elevation model (DEM) data of Qinghai Tibet Plateau. The data comes from the 30m * 30m resolution numerical elevation model data downloaded from the geospatial data cloud website. Using the surface analysis function of ArcGIS software, the slope and aspect information of the Qinghai Tibet Plateau are extracted. The data has been rechecked and reviewed by many people, and its data integrity, position accuracy and attribute accuracy meet the standards, with excellent and reliable quality. As one of the engineering geological conditions, this data is the basic data for the research on the development law of major engineering disturbance disasters and major natural disasters in the Qinghai Tibet Plateau and the analysis of susceptibility, risk and risk.
QI Shengwen
This data is the disturbance disaster data of 1:250000 major projects in the Qinghai Tibet Plateau. For the scope of disaster interpretation, line engineering (national highway, high-speed, railway and Power Grid Engineering) and hydropower engineering are bounded by the first watershed on both sides of the project; Mine, oilfield and port projects are bounded by 1km away from the project. Engineering disturbance disasters can be divided into two categories: ① landslide, collapse and debris flow disasters induced by engineering construction; ② For natural disasters that may affect the project, it is stipulated that all natural disasters within the above interpretation scope belong to category ② engineering disturbance disasters. The data includes the location, length, width, height difference, distribution elevation, genetic type, inducing factors, occurrence time, lithology and other elements of landslide, disaster related projects and project construction years. Based on Google Earth image and 1:500000 geological diagram, 6176 disaster points were interpreted; Google Earth is mainly used for disturbance disaster interpretation, and combined with field investigation to verify the interpretation results, ArcGIS is used to generate disaster distribution map; The data comes from Google Earth high-resolution images, with high accuracy of original data. In the process of generating disaster files, the interpretation specifications are strictly followed, and special personnel are assigned to review, so the data quality is reliable; Based on the collected data, the disaster risk analysis of the study area can be carried out to provide theoretical guidance for the smooth operation of the built projects and the construction of the line projects not built / under construction.
QI Shengwen
Dating data of debris flow and dammed lake sediments in complex mountainous areas from 2019 to 2021. The data collection sites are complex mountainous areas prone to debris flow in the eastern and southern edges of the Qinghai Tibet Plateau. The experimental analysis is mainly completed in the salt lake chemical analysis and testing center of Qinghai Salt Lake Research Institute of Chinese Academy of Sciences and the analysis and testing center of Chengdu Mountain Institute of Chinese Academy of Sciences. The instruments used include RIS ø TL / OSL – Da – 20 automatic luminescence instrument, etc. The age data set of debris flow sediments in typical complex mountainous areas is established, the formation age of debris flow sediments in complex mountainous areas is quantitatively studied, and the ancient debris flow disaster activity history in complex mountainous areas is determined.
HU Guisheng
The types and distribution data sets of major projects in the Qinghai Tibet Plateau mainly include major hydropower projects, major road projects, major mining projects, major port projects and oil field projects. Among them, road projects include national highway, high-speed, railway and power grid projects, and hydropower projects are mainly the project point documents of hydropower station dam site. The data is obtained through data collection and remote sensing image interpretation. The main attributes of the project data are project naming (naming method is project type - project name - project construction year, in which the naming method of hydropower project is project type - watershed name - project name - Project storage year), project construction year, related projects and other characteristics. The data has been checked and modified for many times, and the quality is reliable.
QI Shengwen
This data includes 1:4 million precision fault data within the scope of Qinghai Tibet Plateau in China. The attribute table fields include fault name, fault length, strike, dip, fault property, paleoearthquake, etc. The data comes from the Seismological Bureau. Later, by consulting a large number of fault related literature, the attribute of fault activity age is added on the basis of the original data. The accuracy of original data is reliable, and a special person is responsible for quality review; After review by many people, the data integrity, position accuracy and attribute accuracy meet the requirements of relevant technical regulations and standards, and the quality is excellent and reliable. The fault data can provide basic data support for some fault related research work in the Qinghai Tibet Plateau.
QI Shengwen
In situ stress refers to the stress existing in the earth's crust, that is, the force per unit area in the medium caused by rock deformation. This topic obtains in-situ stress data of major engineering areas through literature collection and borehole test in major engineering areas of Qinghai Tibet Plateau. The accuracy of the original data is reliable, and a special person is responsible for the quality review; After review by many people, the data integrity, position accuracy and attribute accuracy meet the requirements of relevant technical regulations and standards, and the quality is excellent and reliable. This data can provide basic data support for the study of the development law of major engineering disturbance disasters and major natural disasters in the Qinghai Tibet Plateau and other research work related to in-situ stress.
QI Shengwen
The data is based on the 1:500000 geological map of the Qinghai Tibet Plateau, Refer to the national standard engineering rock mass classification standard (gb50218-2014) rock saturated uniaxial compressive strength UCS and its corresponding representative rocks are divided into five categories: hard rock group, harder rock group, weaker rock group, weak rock group and loose rock group. Engineering geological rock group is the main material component of rock and soil mass, the basis of engineering design, the necessary condition for evaluating the engineering stability of rock and soil mass, and can be used as The evaluation factor of disaster risk analysis avoids the difficulty of risk evaluation caused by too many lithology types, and can be applied to major engineering construction and disaster risk analysis in the Qinghai Tibet Plateau in the future.
QI Shengwen
1) Data content: this database includes spatial scope: ① Qinghai Tibet Plateau and Xinjiang in China; ② Central Asia (Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan); ③ West Asia (Pakistan, Afghanistan, Iran); ④ Southeast Asia (Thailand, Vietnam, Laos, Myanmar, Cambodia). The data content mainly includes: ① 1:5 million geological data set (geological body and structure); ② 1:1 million geological and mineral data sets of various countries (geological body, structure and mineral resources); ② Metal mineral data sets (deposits, occurrences, mineralized spots); ③ Xinjiang Central Asia metallogenic geological background data set (rock formation assemblage, tectonic zoning, metallogenic zone, prospective area, target area and minerals); Main maps include: Pan third pole geological and mineral map (1:5 million), geological and mineral map of four Central Asian countries (1:1.5 million), geological and mineral map of Pakistan (1:1 million), geological and mineral map of Afghanistan (1:1 million), geological and mineral map of Iran (1:1 million), geological and mineral map of Xinjiang Central Asia corridor in China (1:2.5 million), metallogenic law map of Xinjiang Central Asia corridor in China (1:2.5 million) Geological and mineral map of Qinghai Tibet Plateau in China (1:1.5 million). The spatial database adopts ArcGIS platform, which can provide basic data support for regional metallogenic law research, resource potential evaluation, strategic prospect area delineation and various thematic maps. The database format is file database (. GDB), and drawings include engineering files (MXD) and grid diagrams (jpg). Various common graphics formats (PDF, TIF, EPS, etc.) can also be generated as required. The pan third pole region (1:5 million) adopts Lambert Conformal cone projection, with the central longitude of 84 degrees east longitude and double latitudes of 20 degrees and 55 degrees respectively. The geological and mineral data of China's Xinjiang Central Asia corridor belt adopts Lambert isometric conic projection. The central longitude is 75 degrees east longitude and the double latitudes are 30 degrees and 50 degrees respectively. The 1:1 million geological and mineral data of major countries in central and West Asia adopt Lambert isometric conic projection, and the central longitude and double latitude are determined according to the location of each country. 2) Data source and processing method; The basic geological data are mainly from the geological map of Asia (2015) (1:5 million), the tectonic metallogenic map and geological map of Central Eurasia (2008) (1:2.5 million), and the geological map of geological survey departments of various countries in the region (1:1 million); ② The main sources of mineral data include the results of the national mineral resource potential evaluation project (2012), the Central Asian mineral database and thematic map of the natural history museum in London, UK (2014), the Afghanistan data set of the U.S. Geological Survey (2008), relevant data of geological survey departments of various countries in the region, and papers on minerals in the region. In addition, in order to meet the modification and improvement of various data, a large number of remote sensing data are used, including image data such as ETM +, oli, aster and worldview, as well as 90m, 30m and 12.5mdem data. 3) Data quality description; In order to meet the needs of the study of metallogenic law in Pan third pole region and the preparation of geological and mineral map and metallogenic prediction map, the data spatial accuracy, logical consistency and data integrity are edited, processed and supplemented. Specifically, it includes: ① vectorization. A lot of vectorization work has been carried out based on the above data to supplement the missing areas of digital data (Iran and Pakistan). At the same time, various surface elements and line elements are combined and divided according to the degree of data update. The vectorization work is completed according to the requirements of relevant specifications and scale accuracy in China; ② Topology processing to eliminate topology errors such as overlapping surfaces and empty areas; ③ Improve the element attribute structure and supplement the element attribute content, focus on the preparation objectives of regional metallogenic law research, geological and mineral map and metallogenic prediction map, establish the corresponding data model according to China's relevant specifications and combined with specific data and data content, improve the attribute structure of geological body, structure and mineral elements, and complete the filling in of corresponding attributes; ④ Based on the above data processing contents, combined with the pan third pole research results and the latest understanding, the relevant geological contents in the area have been further modified and improved. 4) Data application achievements and prospects: the pan third pole geological and mineral database mainly serves the pan third pole region, important metallogenic belts and national and regional metallogenic law research, and the preparation of geological and mineral map and metallogenic prediction map. The scale is 1:5 million (Pan third pole region), 1:2.5 million (Xinjiang Central Asia corridor belt in China), and 1:1 million (important metallogenic belts and countries in central and Western Asia).
LIU Yan
Collision between the Indian and Eurasian plates produced concomitant uplift of the Tibetan Plateau and its basin-ridge geomorphological systems. Surface relief of the Tibetan Plateau has significant dynamic and thermal effects on atmospheric circulation and on regional and global climate. It has been considered as one of the key drivers for the formation of the Asian monsoon, enhanced erosion and weathering, global decreased CO2 during the Cenozoic. Finally, this uplift caused global cooling in the Cenozoic. However, at present, the driving mechanisms of these processes still remain controversies and have not been clearly confirmed by records of chemical weathering from the Tibetan Plateau. This dataset includes major elemental compositions of the Fenghuoshan Group (thick of ~4500 m) from the Hoh Xil Basin which has been dated back to the Late Cretaceous-Eocence. Element was measured in the Institute of Geology and Geophysics, Chinese Academy of Sciences using XRF-1500. The resconstructed Paleogene chemical weathering sequences allow us to constrain the trends of chemical weathering history of the studied area. We found that intensity of chemical weathering is well correlated with global temperature change. These results provide further data supprot for discussing the dynamic mechanisms and links among the Paleogene chemical weathering in the Hoh Xil Basin, uplift of the Tibetan Plateau, and global change.
JIN Chunsheng
This data set contains zircon U-Pb dating, zircon Hf isotope, whole-rock principal, and trace element data of diorite granite and andesite dacite in Xinjiang area, south of bango, Qinghai Tibet Plateau. The data results are from the Zhai Qingguo research team, Institute of Geology, Chinese Academy of Geological Sciences. The data are of good quality and can be used to study the ocean closure process of Bangong Lake Nujiang suture in the central Qinghai Tibet Plateau, the subsequent collision process of Lhasa Qiangtang block, magmatism, and the Cretaceous crustal regeneration and reconstruction of Lhasa block in the central and Northern Qinghai Tibet Plateau. At the same time, this data also provides zircon CL images and reflection photos of all samples, zircon location for reference and comparison, and also provides a basis for the chronology of magmatic rocks and zircon genesis in the study area at the same time. Zircon U-Pb age instrument: obtained from laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), zircon Hf isotope instrument: Neptune multi-collector inductively coupled plasma mass spectrometry (MC – ICP – MS), connected by a goals-193 laser ablation system. The main and trace elements of the whole rock are measured by the National Experimental Center (Academy of Geosciences), Major elements: (XRF; Axios – pw4400), trace elements: ICP-MS; PerkinElmer NexION 300D。
WANG Wei
This data set is the zircon cathodoluminescence image data (CL image) and chronology data set of rencuo ophiolite in the central Qinghai Xizang Plateau. The lithology of the sample includes gabbro, diabase and plagioclase granite. The formation age is about 160-150ma, and the sampling and shooting time is 2019-2020. The separation of zircon was completed in Hebei Regional Geological Survey Institute. Conventional heavy liquid and magnetic separation methods were used for separation, and finally pure zircon was selected under binocular microscope. The sample target was prepared in the Institute of geology, Chinese Academy of Geological Sciences. The diameter of the sample target was 25 mm. The cathode fluorescence image analysis of zircon was completed on the cathode fluorescence analysis system of Institute of geology, Chinese Academy of Geological Sciences (Hitach s-3000n field emission environmental scanning electron microscope and chroma cathode fluorescence spectrometer of Gatan company). Zircon U-Pb dating data were obtained by shrimp II ion probe of Beijing ion probe center, and the data accuracy was ~ 0.5-1ma. These data provide a key limit for understanding the formation and evolution of the Tethys ocean in the Qinghai Tibet Plateau, and have comparative significance for the study of oceanic zircons. The data association results have been published in the Geological Society of America Bulletin. The data results have been peer reviewed and the data quality is true and reliable.
TANG Yue TANG Yue
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
This data set contains zircon U-Pb dating, zircon Hf isotope, whole rock major and trace elements, and whole rock SR Nd isotope data of Cambrian magmatic rocks in the central Qinghai Tibet Plateau, from Zhai Qingguo research team, Institute of geology, Chinese Academy of Geological Sciences. The data quality is excellent, which 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, as well as the reconstruction of global ancient plates and paleogeographic restoration. This provides key information for understanding the early evolution of the Qinghai Tibet Plateau. Zircon U-Pb dating data were obtained by shrimp II ion probe, and zircon HF isotopes were obtained by Neptune multicollector (MC) ICP-MS equipped with a geolas 200 m ARF exciter 193 nm laser ablation system.
TANG Yue TANG Yue
Data content: This data set is the quantitative comprehensive mineral facies analysis data of tectonite from RAMBA gneiss dome obtained by the Tescan Integrated Mineral Analyzer. The data includes the type, content, structural characteristics, distribution characteristics of the whole mineral facies in the tectonite, as well as the type, abundance and main hosted mineral facies information of the full spectrum elements. Data source and processing method: The data were obtained by four high spatial and temporal resolution EDAX energy spectrometers mounted on a Tescan field emission scanning electron microscope. The electrons outside the atomic nucleus of a measuring point on the mineral surface are bombarded by a high-energy electron beam, the transition between different energy levels or excited to escape into free electrons and release photons with a certain energy. The type and content of the mineral element can be accurately calibrated by the signals captured by different energy channels of the energy spectrum detector. Then, automatic comparison and matching are carried out in the database with nearly 5000 mineral phases, so as to fulfill the accurate determination of mineral phases and the element abundance mapping. The voltage is 25 kV, the working distance is 15mm, and the spot size is 100nm. Data quality description: Due to four energy spectrum detectors being equipped, the data acquisition time is short, the accuracy is high, the requirements for sample morphology are low, the detection limit is low, the data quality is very high and strongly reliable. Data application achievements and prospects: Sample size is 27mm x 47mm standard optical thin section, scanning area is full slice scanning with High-resolution scanning mode, and the step size is set to 1μm. Through data analysis, we have obtained the mineral assemblage characteristics of each structural unit of the Ramba gneiss dome, completed the metamorphic grade and metamorphic facies zoning, and put forward the structural thermal evolution model of the Ramba gneiss dome. This technic has been widely recognized and used in structural geology, petrology, geochronology, ore selecting, metallurgy, metal processing and manufacturing, and other disciplines and industries.
CHEN Siyu
The purpose of this work is to carry out high-resolution magnetotelluric sounding profile observation near the East tectonic Festival on the basis of the previous three-dimensional magnetotelluric sounding array in the eastern Qinghai Tibet Plateau, so as to reveal the deep structure of the regional lithosphere, understand the relationship between regional fault activity and deep electrical structure, and study the deep rheological state of the India Eurasia plate collision. The data set contains the "fine structure and shallow response of lithosphere in key areas" special topic of the secondary scientific research of Qinghai Tibet Plateau "Magnetotelluric sounding profile data in the mission. Specifically, it includes 30 magnetotelluric sounding data station data files and 1 data coordinate file collected within a length of about 200km, from Beibeng of Motuo County to Qingduo in Bomi County. The data quality is generally good, with effective frequency range of about 100hz-2000s. However, due to local interference, some stations are not ideal after 1Hz In addition, the regional terrain and coverage are complex, the natural electric field of groundwater is strong, and there is a strong three-dimensional distortion effect in the data.
JIN Sheng
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