Refinement of an amesite-2H 1 polytype from Postmasburg, South Africa

Permo-Triassic macro-plant fossils in the Fort Grey silcrete, East London

Lead isotope patterns in Proterozoic stratiform mineralization in the Bushmanland Group, Namaqua Province, South Africa

Petrography and geochemistry of the Paleoproterozoic Hotazel Iron-Formation, Kalahari manganese field, South Africa; implications for Precambrian manganese metallogenesis

Karst-hosted fresh-water Paleoproterozoic manganese deposits, Postmasburg, South Africa

The Triassic explosion(?); a statistical model for extrapolating biodiversity based on the terrestrial Molteno Formation

Were kinetics of Archean calcium carbonate precipitation related to oxygen concentration?

Fault-controlled hydrothermal alteration of Palaeoproterozoic manganese ore in Wessels Mine, Kalahari manganese field

Palaeoecology of the Triassic Molteno Formation, Karoo Basin, South Africa; sedimentological and palaeontological evidence

Acritarchs from the number 5 seam in the Permian Vryheid Formation, Witbank Coalfield, South Africa

Fault-controlled metasomatic alteration of early Proterozoic sedimentary manganese ores in the Kalahari manganese field, South Africa

The oxygen isotope geochemistry of the Karoo and Etendeka volcanic provinces of Southern Africa

Thrusting northwest of Laingsburg, Cape Province

Characteristics of jointing in the Malmesburg Group, Harbour area, Cape Town

Nchwaningite, Mn 2 2 + SiO 3 ( OH ) 2 ⋅ H 2 O , a new pyroxene-related chain silicate from the N'chwaning Mine, Kalahari manganese field, South Africa

Cretaceous dykes associated with the opening of the South Atlantic; the Mehlberg Dyke, northern Richtersveld

Depositional environment of some gravel terraces in the Sundays River valley, eastern Cape

Sedimentology of the Collingham Formation, Karoo Supergroup

Structural setting of the Riviera W-Mo deposit, western Cape, South Africa

Poldervaartite, Ca(Ca 0.5 Mn 0.5 )(SiO 3 OH)(OH), a new acid nesosilicate from the Kalahari manganese field, South Africa: Crystal structure and description