Bulk-rock elemental and isotopic geochemistry and in situ analytical results for the West Qinling melilitite-nephelinite-carbonatite association
Creator(s):
Liu, Dong
Zhao, Zhidan
Niu, Yaoling
Yu, Xuehui
DePaolo, Donald J
Teng, Fang-Zhen
Che, Yue
Ke, Shan
Mo, Xuanxue
Abstract:
This comprehensive dataset contains bulk-rock elemental geochemistry and Sr-Nd-Pb-Mg-C-O isotopic analyses on the West Qinling melilitite-nephelinite-carbonatite associations, northeastern Tibetan Plateau. Detailed mineralogical observations (EPMA and LA-ICPMS analyses) and in situ Sr isotopic measurements of clinopyroxene and carbonate are also included in this dataset. It allows us to elucidate the petrogenetic relationships among melilitites, nephelinites, and carbonatites. It also provides new constrains on the role of lithospheric mantle assimilation in the formation of Si-undersaturated alkaline rocks. The findings will enhance our understanding of deep C-O volatile recycling in collision zones and contribute to broader discussions on the geodynamic mechanisms driving the lateral spreading of the Tibetan Plateau.
How to cite this dataset:
Liu, D., Zhao, Z., Niu, Y., Yu, X., DePaolo, D. J., Teng, F., Che, Y., Ke, S., Mo, X., 2025. Bulk-rock elemental and isotopic geochemistry and in situ analytical results for the West Qinling melilitite-nephelinite-carbonatite association, Version 1.0. Interdisciplinary Earth Data Alliance (IEDA).
https://doi.org/10.60520/IEDA/114129. Accessed 2025-09-15.
DOI Creation Date:
2025-09-09
License:
Creative Commons Attribution-ShareAlike 4.0 International [CC-BY-SA-4.0]
Funding source(s):
Natural Science Foundation of China: grant 92479107
National Key Research and Development Program of China: grant 2022YFF0800901-3
Second Tibetan Plateau Scientific Expedition and Research: STEP) program
Fundamental Research Funds for the Central Universities: grants QZ05201902 and 2652018122
111 Project of the Ministry of Science and Technology of China: projects BP0719021 and B18048)
Keyword(s):
Coverage Scope: Regional (Continents, Oceans)
Geographic Location: Tibetan Plateau, West Qinling orogenic belt
User Contributed Keyword(s):
melilitite, nephelinite, carbonatite, Mg isotopes, C-O isotopes, EPMA, in situ Sr isotopes, West Qinling, Tibetan Plateau
Data Available On:
2025-09-10