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ICDP Moodies Scientific Drilling Project Barberton WHS

CaseViews

CaseHeader

HeritageAuthority(s): 

Case Type: 

ProposalDescription: 

Drill rotary rock core for sedimentological and geochemical analyses in proximity to Geoheritage site 208 on the farm Dycedale in the Barberton World Heritage Site. The drill hole (BASE-2) is one of 8 planned in the Barberton Greenstone Belt as part of a large international research project referred to as BASE (Barberton Archean Surface Environments) that is administrated by DSI-NRF Centre of Excellence CIMERA in the Geology Department (UJ) under a grant agreement between UJ and the International Continental Drilling Program (ICDP) consortium administrated by GFZ, Germany. Several overseas Universities/Institutes also provided funding. The other 7 holes are all distal from any Sarah registered Geosites in the WHS. This includes borehole BASE-3 on the farm Oosterbeek that was suggested to be close to a Registered Geosite. However according to our information and exact coordinates of this hole, to be drilled in an old quarry in a Sappi plantation, it is very distal to any registered Geosite.

Expanded_Motivation: 

Geoheritage site 208 exposes a very interesting succession of 3,2 billion year old fluvial to tidal strata of the Moodies Group of the Barberton Greenstone Belt. Unfortunately the rocks exposed in the wall of an old roadside quarry (Site 208) is highly weathered not allowing for any sophisticated geochemical analyses to for example detect preservation of ancient organic carbon that could allow recognition of the life forms that were present in terrestrial (fluvial) and coastal intertidal environments 3,2 billion years ago. The proposed drill core of some 500 m length (with diameter around 5cm) would allow us to get fresh material of the highly weathered rocks in the old quarry, thus enhancing the value of the exposure with reference to Early Earth Environments and Life Forms. In this way also enhancing the value of the site not only for for science in general but also for educational and tourism applications in the Barberton WHS.

ApplicationDate: 

Thursday, October 14, 2021 - 20:08

CaseID: 

17338

OtherReferences: 

ReferenceList: 

CitationReferenceTypeDate Retrieved
Heubeck, C., S. Bläsing, N. Drabon, M. Grund, M. Homann and S. Nabhan, 2016, Geological constraints on Archean (3.22 Ga) coastal-zone processes from the Dycedale Syncline, Barberton Greenstone Belt: South African Journal of Geology 119, 495-518.
Thursday, October 14, 2021
Images
Geoheritage Site 208 in Barberton WHS
 
 

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