The Cenozoic strata developed within and around the Tibetan Plateau, contain fruitful information on the tectonic evolution, paleoenvironment and paleoclimate changes. It's very significant on revealing the history of the uplift and deformation of the Tibetan Plateau and its relevant effects on the regional and even global environment and climate. This data set contains several well developed sections, which have been identified by the systematic geological survey. Depending on the tools (e.g. GPS, geological compass) in the fieldwork, we have finished the geological measurements and descriptions of these sections as well as the relevant geological maps. It includes a 90-m loess deposit of the Duikang section in the Linxia basin, several fluvial and lacustrine deposits (such as the 1890-m Dayu section in the Lunpola basin, the 300-m Shuanghe section in the Jianchuan basin, the 252-m Caijiachong section in the Qujing basin) and a 932-m saline lacustrine deposit with gypsolyte of the Jiangcheng section in the Simao basin. This data set provides a solid geological foundation for the following researches on stratigraphic chronology, tectonic evolution, paleoenvironment and paleoclimate, and so forth.
FANG Xiaomin , FANG Xiaomin, YAN Maodu, ZHANG Weilin, ZHANG Dawen
In order to find out the climate and environmental changes since the last interglacial period in Central Asia, the earth ring Institute of Chinese Academy of Sciences, taking tree rings, lakes, stalagmites and loess as carriers, conducted in-depth research on their evolution from different aspects. The tree ring group collected tree ring samples and obtained the data of tree ring width in alagan, Yuli County, Xinjiang; The lake marsh formation collected lake marsh sediments in Kashgar basin and obtained 137cs-210pb, LOI δ 18O data; The stalagmites collected by the stalagmite formation in qiongguo cave, Qinghai Tibet Plateau have obtained carbon and oxygen isotopes, test age and element test data; The comprehensive group obtained the XRF and multi parameter data of peat in Longmucuo and dangyayongcuo lakes, the particle size of Longmucuo in Lop Nur, Xinjiang and Tibet, the magnetic susceptibility of peat in Kashgar and Longmucuo lakes, and the TOC data of Zhaosu; The Loess group obtained the OSL ages, MS and carbon epitope data of the Loess of xiaoerbu, Zhaosu and Qingshuihe in Xinjiang. It provides strong scientific data support for climate and environmental changes since the last interglacial period in Central Asia.
LI Qiang , LAN Jianghu , TAN Liangcheng , LIU Xingxing , SONG Yougui
This data is the magnetism, grain size, chromaticity, diffuse reflectance spectral goethite / hematite peak height data, organic matter stable carbon isotope data of loess-paleosol sequence in Ganzi section (XS) in the east of Tibetan Plateau (TP). We measured the magnetic susceptibility and grain size of the section (10 m) at an interval of 2.5 cm, measured the non-hysteresis remanence and isothermal remanence data at an interval of 5 cm, and provided 5 sets of hysteresis loop measurement results. Total organic carbon (TOC) and organic carbon isotopes were measured at 10 cm and 20 cm intervals respectively. The experimental analysis of magnetic susceptibility was completed at the Key Laboratory of Western China's Environmental Systems (Ministry of Education), Lanzhou University, China. The soil δ13Corgmeasurements were conducted at the State Key Laboratory of Grassland Agro-ecosystems (SKLGAE), Lanzhou University. And the analysis of remanence and hysteresis loop was completed at the Institute of Tibetan Plateau Research, Chinese Academy of Sciences. Chromaticity analysis was carried out in the State Key Laboratory of Loess and Quaternary Geology. The magnetic susceptibility is measured by Bartington MS2 magnetic susceptibility meter, the non-hysteresis remanence is measured by American ASCIM-10-30 pulse magnetometer and molspin minispin small rotation magnetometer, and the isothermal remanence is measured by ASCIM-10-30 pulse magnetometer, 2g-755 superconducting magnetometer and JR-6A rotation magnetometer; he grain size data were measured by a Malvern Mastersizer 2000 laser diffractometer; The chromaticity was determined by CM-700d spectrophotometer. The δ13Corgvalues were analyzed using a MAT-253 isotope ratio mass spectrometer. This data provides an understanding of the magnetic properties and chromaticity variation characteristics of the loess sequence in the eastern TP since the last interglacial period, and plays an important role in the research of the paleoenvironment and paleoclimate in the eastern TP and its relationship with the surrounding atmospheric circulation.
YANG Shengli, CHEN Zixuan, XIA Dunsheng, LIU Li
This data is the chronological, magnetic, grain size and bulk density data of Zhouqu (ZQ) loess paleosol sequence in the eastern Tibetan Plateau (TP). We measured the magnetic susceptibility, grain size and bulk density data of the profile at 5 cm intervals. All the experimental analysis was completed at the Key Laboratory of Western China's Environmental Systems (Ministry of Education), Lanzhou University, China. The OSL ages were determined by an automated Risø TL/OSL DA-20 reader. The magnetic susceptibility was measured by Bartington MS2 magnetic susceptibility meter; The grain size data were measured by a Malvern Mastersizer 2000 laser diffractometer; The bulk density data were determined by according to the oil-soaked method; The data set show the variation characteristics of magnetic susceptibility, grain size and bulk density of loess sequence in the eastern TP since the last glacial period, which plays an important role in studying the paleoenvironment, paleoclimate, dust accumulation history and its relationship with the surrounding atmospheric circulation in the eastern TP.
YANG Shengli, XIA Dunsheng, CHEN Zixuan, LI Qiong
This data set consists of volcanic ash chronological analysis data in Serbian loess. Volcanic ash chronology is a method to correlate and date geological, PALEOCLIMATOLOGICAL, archaeological and other strata and events by using volcanic ash layer as isochronous marker. Generally, the volcanic ash in sediments is compared through the chemical composition characteristics and characteristic mineral assemblages of minerals, and the age of volcanic ash layer is determined through the calibration of isochronous strata in the region; The age of the volcanic ash layer can also be determined by absolute dating methods such as AR ar. The volcanic ash chronological analysis data include the single mineral chemical composition of 8 layers of volcanic ash samples in different loess sections of Serbia and the AR ar chronological data of diorthite of 1 layer of volcanic ash samples. Among them, the single mineral chemical composition of volcanic ash samples was determined by jeol jxa 8100 electron probe of electron probe and scanning electron microscope laboratory of Institute of Geology and Geophysics, Chinese Academy of Sciences. The AR ar chronology data of diorite of volcanic ash samples were determined by helix SFT mass spectrometer of environmental research center of Scottish University Union. This data can provide further age constraints for the Loess in Serbia and is of great significance for the study of paleoclimate / Paleoenvironment in southeastern Europe.
HAO Qingzhen
This data set is composed of paleomagnetic analysis data of the comprehensive loess profile of titel stari slankamen, Serbia. The total thickness of the loess section measured by paleomagnetic experiment is about 55m, and the number of samples measured is 105. MMTD 80 automatic thermal demagnetizer produced by British magnetic measurement company is used for thermal demagnetization of the system, and the residual magnetism measurement is completed on 2g-760 three-axis superconducting magnetometer. All samples were systematically thermally demagnetized at 100 ° C, 150 ° C, 200 ° C, 250 ° C, 300 ° C, 350 ° C, 400 ° C, 450 ° C, 500 ° C, 520 ° C, 550 ° C, 585 ° C, 620 ° C, 630 ° C, 650 ° C, 685 ° C in 16 steps. The mixed demagnetization method was used for 33 samples. Firstly, thermal demagnetization was carried out to 150 ° C, and then alternating demagnetization was carried out. The alternating demagnetization field was 5 MT, 7.5 MT, 10 mT, 15 MT, 20 MT, 25 MT, 30 mT, 35 MT, 40 MT, 45 MT, 50 MT and 60 Mt. Finally, the characteristic remanence results of all samples were obtained by principal component analysis. The experimental analysis was completed in the State Key Laboratory of lithospheric evolution. This data provides further age constraints for the Loess in Serbia and is of great significance for the study of paleoclimate / Paleoenvironment in southeastern Europe.
HAO Qingzhen
This data set is composed of paleomagnetic analysis data of Huining loess profile on the Loess Plateau of China. The total thickness of Huining loess profile measured by paleomagnetic experiment is about 130 meters, and the number of samples measured is 200. MMTD 80 automatic thermal demagnetizer produced by British magnetic measurement company is used for thermal demagnetization of the system, and the residual magnetism measurement is completed on 2g-760 rock superconducting magnetometer. The experimental analysis was completed in the State Key Laboratory of lithospheric evolution. This data provides further age constraints for the Loess in Huining area of the Loess Plateau of China, and is of great significance for the study of paleoclimate / Paleoenvironment in the west of the Loess Plateau.
HAO Qingzhen
This data set is composed of photoluminescence dating data of loess profiles in Luochuan (35 ° 43 ′ n, 109 ° 25 ′ E) and Xuyi (118 ° 39 ′ e, 32 ° 51 ′ n) in China, including the results of photoluminescence chronology of 45 samples. Among them, the luminescence chronology of 21 samples from Luochuan section of the Loess Plateau of China uses the potassium feldspar monolithic regeneration method (SAR) multi-step temperature rise post IR IRSL (met pirir) dating technique; The study on the luminescence chronology of 24 samples in Xuyi section is that 8 samples are based on the photoluminescence dating of 4-11 micron quartz particles according to the standard monolithic regeneration method (SAR) measurement process, and 8 samples are based on the infrared luminescence dating of 4-11 micron multi mineral fine particles heated to 225 ℃ (pir225) according to the monolithic regeneration method measurement process, And 8 samples based on the infrared luminescence dating of 4-11 micron multi mineral fine particles heated to 290 ℃ (pir290) according to the single chip regeneration method measurement process. The instrument used for the photoluminescence dating of Luochuan and Xuyi loess profiles is RIS ø thermoluminescence / photoluminescence dating instrument made in Denmark. The experimental analysis was completed in the Department of Geosciences of the University of Hong Kong and babes Bolyai University in Romania. The data provide further age constraints for the Loess in Luochuan and Xuyi, China, and are of great significance for the study of paleoclimate / Paleoenvironment in the two regions.
HAO Qingzhen
The semi quantitative reconstruction of paleoclimate parameters such as Paleoprecipitation and paleotemperature in the Loess Plateau of Serbia and China in the past 1 million years is completed based on the magnetic susceptibility climate conversion function of loess established on the topsoil through the comprehensive magnetic susceptibility data of tiel stari slankamen loess profile in Serbia and Xifeng loess profile in the Loess Plateau of China in the past 1 million years. It is of great significance to study the difference and relationship of climate behavior characteristics (duration, amplitude, variability, etc.) between East Asian monsoon area and westerly affected area at different time scales during interglacial period with different temperature increase amplitude.
HAO Qingzhen
This data set consists of clay mineral analysis data of stari slankamen loess profile in Serbia. Using x'pert Pro MPD powder X-ray (XRD) manufactured by panalytical company in the Netherlands, we carried out clay mineral determination and Analysis on the comprehensive profile of stari slankamen loess at an interval of about 10-20 cm. The total thickness of the profile is about 41 meters and the number of samples is 279. The reproducibility of the scanning angle of the instrument is ± 0.0001 degrees. The experimental analysis was completed in Shandong Key Laboratory of tourism, resources and environment, Taishan University. This data reflects the change characteristics of clay minerals in the long-term loess sequence in Serbia, and is of great significance for the study of paleoclimate / Paleoenvironment in southeastern Europe.
HAO Qingzhen
This data set is composed of principal and trace element analysis data of different particle size components of stari slankamen loess comprehensive profile in Serbia. There are two sets of particle size samples in total. One set is divided according to the Uddin Wentworth particle size standard. A single sample is divided into six particle size samples, which are < 2 μ m、2-4 μ m、4-8 μ m、8-16 μ m、16-32 μ M and 32-63 μ M component, 102 samples in total; The other set divides a single sample into < 10 μ M and 10-63 μ M two components, a total of 52 samples. The contents of major and trace elements in each sample were determined by Axios wavelength dispersive X-ray fluorescence spectrometer (XRF) manufactured by panalytical company and nexion300d inductively coupled plasma mass spectrometry (ICP-MS) manufactured by Perkin Elmer company, The experimental analysis was completed in the Key Laboratory of Cenozoic geology and environment, Chinese Academy of Sciences and the Institute of analysis and testing, Beijing Institute of geology, China nuclear industry. The data can be applied to determine the particle size effect of element geochemical indexes of loess in the westerly affected area, and has important guiding significance for loess provenance discrimination and paleoclimate research by using element geochemical indexes.
HAO Qingzhen
This data set is composed of environmental magnetic analysis data such as non hysteresis remanence (ARM) and saturated remanence (SIRM) of the comprehensive loess profile of titel stari slankamen, Serbia. The total thickness of the composite section of titel stari slankamen loess is about 56m. We used 2g-760 rock superconducting magnetometer to measure and analyze the non hysteresis remanence (ARM) and saturated remanence (SIRM) at an interval of about 10 cm. The number of samples measured is 579. The experimental analysis was completed in the State Key Laboratory of lithospheric evolution. The data reflect the variation characteristics of magnetic properties of loess sequences in Serbia in recent one million years, which is of great significance for the study of paleoclimate / Paleoenvironment in southeastern Europe.
HAO Qingzhen
This data set is composed of paleoweathering intensity analysis data of titel stari slankamen loess comprehensive section in Serbia. The analysis data of paleoweathering intensity include the percentage of free iron oxide and total iron oxide. The ratio of the two is one of the indexes widely used in soil science to evaluate the degree of soil chemical weathering. Free iron oxide and total iron oxide were extracted by CBD (sodium bisulfite sodium citrate sodium bicarbonate solution) method and hf-hno3-hclo4 acid dissolution method respectively, and determined on GGX-600 atomic absorption spectrometer. The total thickness of the profile is about 56m. Free iron oxide and total iron oxide are measured and analyzed at an interval of about 5cm. The number of samples measured is 683 and 622 respectively. The experimental analysis was completed in the Key Laboratory of Cenozoic geology and environment, Chinese Academy of Sciences. This data reflects the variation characteristics of paleoweathering intensity of loess sequence in Serbia in recent one million years, and is of great significance for the study of paleoclimate / Paleoenvironment in southeastern Europe.
HAO Qingzhen
This data set consists of chromaticity analysis data of Luochuan and Xifeng loess profiles on the Loess Plateau of China. We have carried out chromaticity measurement and Analysis on Luochuan and Xifeng loess profiles at an interval of about 5 cm. The total thickness of the profiles is about 57M and 86m respectively, and the number of samples is 1138 and 1726 respectively. The instrument used is the cm-700d spectrophotometer manufactured by Konica Minolta company in Japan. The experimental analysis was completed in the Key Laboratory of the Cenozoic Institute of Geology and environment, Chinese Academy of Sciences. This data reflects the variation characteristics of chromaticity parameters of loess sequence in the central part of the Loess Plateau in recent one million years, and is of great significance for the study of paleoclimate / paleoenvironment of the Loess Plateau.
HAO Qingzhen
This data set is composed of chromaticity analysis data of titel stari slankamen loess comprehensive profile in Serbia. Using the cm-700d spectrophotometer manufactured by Konica Minolta, Japan, we carried out chromaticity measurement and Analysis on the comprehensive section of titel stari slankamen loess at an interval of about 5 cm. The total thickness of the section is about 56 meters and the number of samples is 1128; Using cary5000 UV-vis-NIR spectrophotometer, we carried out chromaticity measurement and Analysis on the comprehensive profile of titel stari slankamen loess at an interval of about 10 cm. The number of samples measured was 565. The experimental analysis was completed in the Key Laboratory of Cenozoic geology and environment, Chinese Academy of Sciences and the State Key Laboratory of lithospheric evolution. The data reflect the variation characteristics of chromaticity parameters of loess sequence in Serbia in recent one million years, which is of great significance for the study of paleoclimate / Paleoenvironment in southeastern Europe.
HAO Qingzhen
This data set consists of grain size analysis data of Huining loess profile on the Loess Plateau of China. We have carried out particle size determination and Analysis on the loess profile at an interval of about 5 cm. The total thickness of the profile is about 231m, and the number of samples is 5329. The instrument used is Mastersizer 3000 laser diffraction particle size analyzer manufactured by Malvern Instruments Co., Ltd. in the UK, and the measurement range of the instrument is 0.01 ~ 3500 μ m. Each sample is counted for about 10 seconds, and the accuracy is better than 1%, the repeatability is better than 0.5%, and the reproducibility is better than 1%. The experimental analysis was completed in Shandong Key Laboratory of tourism, resources and environment, Taishan University. This data reflects the variation characteristics of grain size parameters of loess sequence in Huining area of Loess Plateau of China in recent two million years, and is of great significance for the study of paleoclimate / paleoenvironment of Loess Plateau.
HAO Qingzhen
This data set is composed of grain size analysis data of middle and upper samples of titel stari slankamen loess comprehensive profile and stari slankamen loess profile in Serbia. Among them, the total thickness of tiel stari slankamen loess comprehensive section is about 56m, and the middle and lower part of stari slankamen loess section (l6-s9) is below 43.1m; The thickness of the middle and upper part of the stari slankamen loess profile is 29.7m, including the stratum s0-s5. We have carried out particle size determination and Analysis on the comprehensive section of titel stari slankamen loess at an interval of about 5 cm, and the number of samples measured is 1120; Grain size determination and analysis were carried out on the middle and upper part of stari slankamen loess profile at an interval of about 10 cm, and the number of samples measured was 296. The instrument used is LS 13320 laser diffraction particle size analyzer manufactured by Beckman Coulter company of the United States, and the measurement range of the instrument is 0.375 ~ 2000 μ m. During the measurement, the sample suspension is in circulation. Each sample is counted for 5 ~ 10 seconds and 1000 times per second. The relative error of parallel samples is less than 1.5%. The experimental analysis was completed in the Key Laboratory of Cenozoic geology and environment, Chinese Academy of Sciences. This data reflects the variation characteristics of grain size parameters of loess sequence in Serbia in recent one million years, and is of great significance for the study of paleoclimate / Paleoenvironment in southeastern Europe.
HAO Qingzhen
This data set consists of magnetic susceptibility analysis data of Huining loess profile on the Loess Plateau of China. It includes one main section and two last interglacial loess sections. The total thickness of the main section is about 271m, and the thickness of the two last interglacial loess sections is about 21m and 24m respectively. We have carried out magnetic susceptibility measurement and Analysis on the above loess profile at an interval of about 5cm. The number of low-frequency magnetic susceptibility samples measured are 5336, 436 and 484 respectively. The instrument used is bartington MS2 magnetic susceptibility instrument made in Britain. The experimental analysis was completed in the Key Laboratory of Cenozoic geology and environment, Chinese Academy of Sciences. This data reflects the variation characteristics of low-frequency magnetic susceptibility of loess sequence in Huining area of Loess Plateau of China in recent two million years, and is of great significance for the study of paleoclimate / paleoenvironment of Loess Plateau.
HAO Qingzhen
This data set is composed of the magnetic susceptibility analysis data of the middle and upper samples of the titel stari slankamen loess comprehensive profile and the stari slankamen loess profile in Serbia. Among them, the total thickness of tiel stari slankamen loess comprehensive section is about 56m, and the middle and lower part of stari slankamen loess section (l6-s9) is below 43.1m; The thickness of the middle and upper part of the stari slankamen loess profile is 29.7m, including the stratum s0-s5. We have carried out magnetic susceptibility measurement and Analysis on the comprehensive section of titel stari slankamen loess at an interval of about 5cm. The number of low-frequency magnetic susceptibility samples and high-frequency magnetic susceptibility samples is 1129; Magnetic susceptibility measurement and analysis were carried out on the middle and upper part of stari slankamen loess profile at an interval of about 10cm. The number of low-frequency magnetic susceptibility samples and high-frequency magnetic susceptibility samples were 297. The instrument used is bartington MS2 magnetic susceptibility instrument made in Britain. The experimental analysis was completed in the Key Laboratory of Cenozoic geology and environment, Chinese Academy of Sciences. This data reflects the variation characteristics of low-frequency magnetic susceptibility and high-frequency magnetic susceptibility of loess sequence in Serbia in recent one million years, and is of great significance for the study of paleoclimate / Paleoenvironment in southeastern Europe.
HAO Qingzhen
The data set contains the magnetism, grain size, geochemical element, chromaticity and organic carbon isotope data of 119 topsoils in the middle and upper reaches of the Yarlung Zangbo River, southern Tibetan Plateau; contains the age, magnetism, grain size, geochemical element, chromaticity and organic carbon isotope data of the five aeolian sedimentary sections in this region; and contains chronological data of 36 aeolian sediments, provenance data of 46 samples from different sediments, and Sr-Nd isotopic data of 21 samples from different sediments. The magnetic susceptibility was measured using a Bartington MS2 metre with a dual-frequency sensor; The anhysteretic remanent magnetization was induced by LDA-5 demagnetizer, and was measured using a JR-6A Minispin magnetometer; The grain size was measured by Malvern Mastersizer 2000 laser particle size analyzer; The geochemical element was determined by X-ray fluorescence spectrometer; The chromaticity was measured by CM-700d spectrophotometer; The organic carbon isotope was determined by element analyzer-stable isotope ratio mass spectrometer (EA-IRMS); Optically stimulated luminescence measurements were conducted using an automated Risø-TL/OSL-DA-20 reader; For the AMS14C and Sr-Nd isotope measurements, please refer to the main body of the scientific research report. The data set is rich in information, authentic and reliable, and provides an important data reference for understanding the physical and chemical properties of surface dust, provenance, and the long-term evolution history of ancient dust in Yarlung Zangbo River basin, southern Tibetan Plateau. Funded project: The Second Tibetan Plateau Scientific Expedition Program (STEP), Task 6 Topic 2 "Dust aerosol and its climatic and environmental effects" (2019QZKK0602).
XIA Dunsheng, YANG Shengli, YANG Junhuai, WANG Shuyuan, LING Zhiyong, WANG Fei
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