Major element spinel-group mineral chemistry: global dataset of ultramafic rocks from komatiites, layered intrusions and ophiolitic mantle
Abstract:
This dataset comprises 2457 major element spot analyses of spinel-group minerals from 48 ultramafic samples. Samples are representative of the following geologic/tectonic environments: the residual mantle portion of ophiolites; komatiites; continental layered intrusions; and high-grade (granulite-facies) metamorphism. Ophiolite samples are from Semail, Oman (n=4); Baltimore, USA (n=5); and Leka, Norway (n=4). Komatiite samples are from Komati, South Africa (n=3); Munro, Canada (n=5); Gorgona Island, Colombia (n=3); and Morro do Onça, Brazil (n=12). Layered intrusion samples are from: Modderfontein, South Africa (n=2); Loch Mhorsgail, UK (n=5); and Maaruig, UK (n=4). The samples representing granulite-facies metamorphism are from Ben Strome, UK (n=2). All analyses were collected in the JEOL 8900 electron microprobe in the Department of Mineral Sciences at the Smithsonian National Museum of Natural History.
How to cite this dataset:
Guice, G. L., George, F. R., 2026. Major element spinel-group mineral chemistry: global dataset of ultramafic rocks from komatiites, layered intrusions and ophiolitic mantle, Version 1.0. Interdisciplinary Earth Data Alliance (IEDA).
https://doi.org/10.60520/IEDA/114366. Accessed 2026-03-09.
DOI Creation Date:
2026-03-06
Related
Publication(s):
Guice, G. L., George, F. R. (revision submitted). Can spinel-group mineral chemistry reliably distinguish altered ultramafic rocks from different tectonic settings? Evidence from komatiites, mantle residues, and layered intrusions. Journal of Petrology.
License:
Creative Commons Attribution 4.0 International [CC-BY-4.0]
Keyword(s):
Coverage Scope: Global
Geographic Location: Komati (South Africa), Munro (Canada), Gorgona Island (Colombia), Morro do Onca (Brazil), Modderfontein (South Africa), Loch Mhorsgail (UK), Maaruig (UK), Semail (Oman), Baltimore (USA), Leka (Norway), Ben Strome (UK)
User Contributed Keyword(s):
ultramafic, spinel-group minerals, accessory mineral
Data Available On:
2026-03-07