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.

File naming and required software

Magnetism, grain size, chromaticity, diffuse reflectance, organic matter stable carbon isotope data of Ganzi XS section are stored in CSV format, and the file name are “Chromaticity , first and second derivative peaks of diffuse reflectance spectradata of XS Section”、“Hysteresis loop data of XS section”、“Magnetic parameters of XS section”、“Magnetic susceptibility and Grain size of XS section”、 “Total organic carbon and organic matter stable carbon isotope data of XS section”, respectively.

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Yang, S., Chen, Z., Xia, D., Liu, L. (2021). Environmental index data set of Ganzi loess profile in Western Sichuan Plateau. A Big Earth Data Platform for Three Poles, DOI: 10.11888/Paleoenv.tpdc.271809. CSTR: 18406.11.Paleoenv.tpdc.271809. (Download the reference： RIS | Bibtex )

Related Literatures:

1. Chen, Z.X., Yang, S.L., Luo, Y.L., Chen, H., Liu, L., Liu, X.J., Wang, S.Y., Yang, J.H., Tian, W.D., & Xia, D.S. (2022). HIRM variation in the Ganzi loess of the eastern Tibetan Plateau since the last interglacial period and its paleotemperature implications for the source region. Gondwana Research 101, 233-242.( View Details | Bibtex)

2. Yang, S., Liu, L., Chen, H., Tang, G., Luo, Y., Liu, N., Cheng, T., & Li, D. (2021). Variability and environmental significance of organic carbon isotopes in Ganzi loess since the last interglacial on the eastern Tibetan Plateau. CATENA 196, 104866.( View Details | Bibtex)

3. Cheng, T., Yang, S.L., Liu, W.M, et al. (2018). Characteristics and paleoclimatic significance of the soil bulk density for the loess deposit from Ganzi region, western Sichuan Plateau. Journal of Earth Environment, 9(3), 230 – 237.( View Details | Bibtex)

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