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Barberton Archean Surface Environments, Moodies Group, Barberton Greenstone Belt

Project Acronym: BASE | State: Moratorium | Expedition ID: 5069

Sedimentary rocks of the Moodies Group in the Barberton Greenstone Belt (BGB), South Africa, are about 3.22 Ga old and represent some of the world’s oldest well-preserved shallow-water strata. They reach almost 4 km in stratigraphic thickness, are lithologically variable and were deposited within ca. 1 to 14 Ma. The metamorphic grade is lower greenschist-facies; widespread early-diagenetic silicification preserved micro- and macrotextures virtually without strain.

Moodies strata represent a very-high-magnification record of Archean surface processes and are probably unique worldwide in allowing the regional and temporal contextualization of micro-scale and high-resolution Archean analytical data, comparable or superior to similar strata in Australia’s Pilbara region. Their coastal depositional environment is ideal to investigate and combine data from both marine and terrestrial settings.

Keywords: Africa, South Africa, Barberton, Early Life Ecology, Greenstone Belt, Moodies, Ocean And Atmosphere, Oxygen

Project Details

Project Location

Project Timeline

Moratorium

16 September 2023 - 15 September 2025

Sampling Party

11 - 15 September 2023 at BGR core repository in Berlin

Drilling

17 November 2021 - 27 July 2022

Full Proposal Approved

First Full Proposal Submitted

Workshop Held

5 - 10 October 2017 in Barberton, South Africa

Workshop Proposal Approved