Bulk major and trace element and isotopic composition of volcanic and intrusive rocks from the Macusani Volcanic Field, SE Peru
Creator(s):
Abat, Lisard Torro i; ORCID:
0000-0002-3557-8334 Ramirez-Briones, Johan
Chiaradia, Massimo
Laurent, Oscar
Mandrou, Stéphanie
Tavazzani, Lorenzo
Chelle-Michou, Cyril
Vallance, Jean
Baby, Patrice
Abstract:
This dataset provides geochemical analyses of strongly peraluminous volcanic and intrusive rocks from the Neogene Macusani Volcanic Field in southeastern Peru, focusing on the lithium-rich Falchani deposit. Samples were analyzed for major elements using X-ray fluorescence (XRF) after loss on ignition (LOI) determination, and trace elements were quantified using inductively coupled plasma mass spectrometry (ICP-MS). Whole rock isotope ratios were obtained using MC-TIMS (Rb-Sr, Sm-Nd) and MC-ICPMS (Pb). The data characterizes the Falchani deposit's distinctive geochemistry, where lithium ore occurs primarily in tuffaceous mudstone (LIthium-rich Tuff) between two Li-rich volcaniclastic units (Upper and Lower Breccia). The chemical composition of Li-ore units resembles highly evolved peraluminous obsidian glasses and shows characteristics typical of rare-metal granites and Li-Cs-Ta pegmatites. Isotope ratios provide constraints on magma sources and petrogenetic processes in this economically significant lithium province.
How to cite this dataset:
Abat, L. T. I., Ramirez-Briones, J., Chiaradia, M., Laurent, O., Mandrou, S., Tavazzani, L., Chelle-Michou, C., Vallance, J., Baby, P., 2025. Bulk major and trace element and isotopic composition of volcanic and intrusive rocks from the Macusani Volcanic Field, SE Peru, Version 1.0. Interdisciplinary Earth Data Alliance (IEDA).
https://doi.org/10.60520/IEDA/113778. Accessed 2025-05-30.
DOI Creation Date:
2025-04-22
Related
Publication(s):
Ramirez-Briones, J.S., Torró, L., Chiaradia, M., Laurent, O., Mandrou, S., Tavazzani, L., Chelle-Michou, C., Vallance, J., & Baby, P. (submitted). Petrogenesis of Volcanogenic Sedimentary Lithium Ore in the Neogene Macusani Volcanic Field, Puno, Peru. Journal of Petrology.
License:
Creative Commons Attribution 4.0 International [CC-BY-4.0]
Funding source(s):
Peruvian project 122-2020 E041-2020-01-01 managed through the PROCIENCIA agency
Keyword(s):
Coverage Scope: Regional (Continents, Oceans)
Geographic Location: Peru, Puno, Macusani
User Contributed Keyword(s):
peraluminous, lithium, volcanogenic, Macusani Volcanic Field, Central Andes
Bounding Coordinates:
North: -13.996015 South: -14.107966 East: -70.65239 West: -70.772156
Data Available On:
2025-04-23