Heavy Minerals from barite-rich sandstone beds in the Mapepe Formation, Barberton Greenstone Belt, South Africa

<a href="https://embed.stanford.edu/iframe/?url=https%3A%2F%2Fpurl.stanford.edu%2Fxs088yt3392" class="su-underline">Show Content</a>

Abstract/Contents

Abstract: Heavy mineral deposits in the Fig Tree Group Mapepe Formation in the Barberton Greenstone Belt are composed largely of detrital barite sand but also contain detrital chromite and zircon. This study presents geochemical chromite data, primarily Cr# (Cr/(Cr+AL))*100, and geochronological zircon data and compare these with published and unpublished data from source rock areas. Cr# data from source rock areas suggest aeolian processes could have transported grains prior to Fig Tree Group time. Mapepe Formation detrital zircons and chromites combined suggest these barite sandstones sourced chromite grains mainly from Onverwacht Group Mendon and Kromberg Formation komatiitic flows and zircon grains from Hooggenoeg Formation felsic rocks (H6), and that uplift was able to erode 3-4 km into underlying rock.

Subject	Africa > Barberton Greenstone Belt (Eswatini and South Africa)
Subject	Chromite
Subject	Zircon
Subject	Komatiite
Subject	Africa > Fig Tree Group (Eswatini and South Africa)
Genre	Text
Genre	Thesis

Related item	Preferred citation Lowe, D.R., Drabon, N., Byerly, G.R., 2019. Crustal fracturing, unconformities, and barite deposition, 3.26–3.23 Ga, Barberton Greenstone Belt, South Africa. Precambrian Research 327, 34–46. https://doi.org/10.1016/j.precamres.2019.02.024
DOI	https://doi.org/10.25740/xs088yt3392
Location	https://purl.stanford.edu/xs088yt3392

Use and reproduction: User agrees that, where applicable, content will not be used to identify or to otherwise infringe the privacy or confidentiality rights of individuals. Content distributed via the Stanford Digital Repository may be subject to additional license and use restrictions applied by the depositor.
License: This work is licensed under a Creative Commons Attribution Non Commercial 4.0 International license (CC BY-NC).

Preferred citation: Cahill, M.R. (2022). Heavy Minerals from barite-rich sandstone beds in the Mapepe Formation, Barberton Greenstone Belt, South Africa. Stanford Digital Repository. Available at https://purl.stanford.edu/xs088yt3392

Master's Theses, Doerr School of Sustainability

Loading usage metrics...