Guided by the theories of plate tectonics, paleogeography, petroliferous basin analysis and sedimentary basin dynamics, we have collected a large number of data and achievements of geological research and oil-gas geological research in Pan third pole in recent years, including basic materials such as stratum, sedimentation, paleontology, paleogeography, paleoenvironment, paleoclimate, structure, oil-gas (potash) geology, especially paleomagnetism and paleogenesis On the basis of zircon and geochemical data, combined with the results of typical measured stratigraphic sections, the lithofacies and climate palaeogeographic pattern of Jurassic period are restored and reconstructed, and the paleogeographic map of lithofacies and climate of Pan third extremely early, middle and late Jurassic (3 sheets) and pan third extremely early, middle and late Jurassic (3 sheets) are obtained, aiming to discuss paleogeography and paleostructure The control and influence of paleoclimate on oil and gas (including potash) resources, in order to reveal the geological conditions and resource distribution rules of oil and gas formation, and provide scientific basis and technical support for overseas and domestic oil and gas exploration and deployment in China.
This data is the grain size data set of the XS loess section at Ganzi in the east of Qinghai Tibet Plateau. The whole section is 10 meters thick, and the grain size analysis is carried out according to the interval of 2.5cm. A total of 398 groups of grain size data are obtained. The grain size analysis was carried out at the Key Laboratory of Western China's Environmental Systems（Ministry of Education), Lanzhou University. Before the measurement, the organic matter and carbonate in the sample were removed by H2O2 and hydrochloric acid, then adding the sodium hexago-hydrophosphate and vibrating for about 10 min to disperse samples by using ultrasonic apparatus. All measurements are conducted by using the Mastersizer 2000. This data reflects variations of the loess grain size since the last interglacial, which is of great importance for understanding past evionroment changes in the eastern Tibet Plateau.
The data set integrated glacier inventory data and 426 Landsat TM/ETM+/OLI images, and adopted manual visual interpretation to extract glacial lake boundaries within a 10-km buffer from glacier terminals using ArcGIS and ENVI software, normalized difference water index maps, and Google Earth images. It was established that 26,089 and 28,953 glacial lakes in HMA, with sizes of 0.0054–5.83 km2, covered a combined area of 1692.74 ± 231.44 and 1955.94 ± 259.68 km2 in 1990 and 2018, respectively.The current glacial lake inventory provided fundamental data for water resource evaluation, assessment of glacial lake outburst floods, and glacier hydrology research in the mountain cryosphere region
Guided by plate tectonics, palaeogeography, petroleum basin analysis and sedimentary basin dynamics , a large number of data and achievements in recent years of geological and petroleum geology research in Pan-Third Pole have been collected, including basic materials such as strata, sediments, palaeontology, palaeogeography, palaeoenvironments, palaeoclimate, structure, petroleum (sylvine) geology, especially Palaeomagnetism and palaeozoic. On the basis of material, detrital zircon and geochemical data, and combined with the results of typical measured stratigraphic profiles, the lithofacies and climatic palaeogeographic pattern of the Triassic period were restored and reconstructed, and the Palaeogeographic distribution of Early, Middle and Late Triassic lithofacies in Pan-Third Pole area as well as the paleoclimatic distribution maps were obtained, aiming at discussing the control and influence of palaeogeography, palaeostructure and Palaeoclimate on hydrocarbon (potassium-bearing) resources In order to reveal the geological conditions of oil and gas formation and the law of resource distribution, and provide scientific basis and technical support for overseas and domestic oil and gas exploration and deployment in China. The boundary line between different lithofacies and climate is clear, which better reveals the paleogeographic pattern of lithofacies and climate in the Triassic period, which is of certain indicative significance for the study of the control and influence of paleogeography, paleostructure and paleoclimate on oil and gas (including potash) resources, as well as the geological conditions for the formation of oil and gas and the distribution of resources.
The Southern Tibet Rift System (STRS) is one of the most prominent tectonic and geomorphological features in the southern Tibetan Plateau. The Jilong-Oma and Dati basins are located in the northern Himalaya Mountains. The late Cenozoic sedimentary sequences deposited in these two rift basins have archived abundant information about formation and evolution of the STRS and the uplift process of the Tibetan Plateau. The detailed stratigraphic and sedimentologic investigations were conducted on the late Cenozoic sediments in the Jilong-Oma basins. The late Cenozoic sediments in the Jilong-Oma Basin is over 610 m in thickness, including the lower conglomerate member of the fan delta facies (Danzengzhukang Fm., 400-600 m), the middle mudstone interbedded with sandstone member of fluvio-lacustrine facies (Oma Fm., 200-400 m) and the upper conglomerate intercalated with mudstone member of alluvial fan facies (Gongba Fm., 200-0 m). The Hipparion fossils were previously found at the bottom of the Oma Fm. The late Cenozoic sediments in the Dati Basin have a thickness of ~300 m, iucluding the lower mudstone, sandstone and sandy conglomerate member of fluvio-lacustrine faceis (Dati Fm., 80-305 m), and the upper conglomerate member of alluvial fan facies (Gongba Fm., 80-0 m). The Hipparion fossils were previously found at the upper part of the Dati Fm. By comparing with the Zhada Basin in the west part of the Himalaya orogen, it shows that these rift basins experienced the similar sedimentary evolution history and have the comparable Hipparion fossils. Establishing the precise chronology of these sediments and carrying out comprehensive comparison analyses between the rift basins play important roles in understanding the formation and evolution of the STRS, the uplift and deformation processes of the southern Tibetan Plateau and the climate change in the surrounding areas.