An overview of the geology of the Transvaal Sequence and Bushveld Complex, South Africa

PG Eriksson, PJ Hattingh, W Altermann - Mineralium Deposita, 1995 - Springer
Abstract The Late Archaean-Early Proterozoic Transvaal Sequence is preserved within the
Transvaal, Kanye and Griqualand West basins, with the 2050 Ma Bushveld Complex …

The Transvaal sequence: an overview

PG Eriksson, JK Schweitzer, PJA Bosch… - Journal of African Earth …, 1993 - Elsevier
The 15 000 m of relatively unmetamorphosed clastic and chemical sedimentary and
volcanic rocks of the 2550-2050 Ma Transvaal Sequence as preserved within the Transvaal …

Precambrian clastic sedimentation systems

PG Eriksson, KC Condie, H Tirsgaard, WU Mueller… - Sedimentary …, 1998 - Elsevier
The unique and evolving nature of the Precambrian geological environment in many ways
was responsible for significant differences between Precambrian clastic sedimentary …

Cyanobacterial calcification and its rock‐building potential during 3.5 billion years of Earth history

W Altermann, J Kazmierczak, A Oren, DT Wright - Geobiology, 2006 - Wiley Online Library
Microbially mediated calcification can be traced back for at least 2.6 billion years. Although
morphological comparison of fossil and recent microbial carbonates suggests that …

SHRIMP U–Pb zircon ages for the Palaeoproterozoic Kuruman Iron Formation, northern Cape Province, South Africa: evidence for simultaneous BIF deposition on …

AL Pickard - Precambrian Research, 2003 - Elsevier
Stilpnomelane-rich tuffaceous mudrocks are an important component of the
Palaeoproterozoic Kuruman and Griquatown Iron Formations in the Northern Cape …

Sedimentation rates, basin analysis and regional correlations of three Neoarchaean and Palaeoproterozoic sub-basins of the Kaapvaal craton as inferred from precise …

W Altermann, DR Nelson - Sedimentary Geology, 1998 - Elsevier
Calculation of sedimentation rates of Neoarchaean and Palaeoproterozoic siliciclastic and
chemical sediments covering the Kaapvaal craton imply sedimentation rates comparable to …

Implications for Neoarchaean ocean chemistry from primary carbonate mineralogy of the Campbellrand‐Malmani Platform, South Africa

DY Sumner, JP Grotzinger - Sedimentology, 2004 - Wiley Online Library
The precipitation of calcite and aragonite as encrustations directly on the seafloor was an
important platform‐building process during deposition of the 2560–2520 Ma Campbellrand …

Muddy roll-up structures in siliciclastic interdune beds of the c. 1.8 Ga Waterberg Group, South Africa

PG Eriksson, EL Simpson, KA Eriksson… - …, 2000 - pubs.geoscienceworld.org
Concentrically rolled-up silty mudrock laminae, 1–2 mm thick, are found in the uppermost of
four, 40–110 cm thick interdune beds within a thick aeolian succession of the c. 1.8 Ga …

Tectonic and geochronological constraints on late Archaean and Palaeoproterozoic stratigraphic correlation within and between the Kaapvaal and Pilbara Cratons

DMB Martin, CW Clendenin, B Krapez… - Journal of the …, 1998 - lyellcollection.org
Recent radiometric dating of carbonates and banded iron-formations on the Kaapvaal
Craton, southern Africa, has suggested that late Archaean and Palaeoproterozoic carbonate …

Microfossils from the Neoarchean Campbell Group, Griqualand West Sequence of the Transvaal Supergroup, and their paleoenvironmental and evolutionary …

W Altermann, JW Schopf - Precambrian Research, 1995 - Elsevier
The oldest filament-and colonial coccoid-containing microbial fossil assemblage now known
is described here from drill core samples of stromatolitic cherty limestones of the …