A paleoweathering profile from Griqualand West, South Africa: evidence for a dramatic rise in atmospheric oxygen between 2.2 and 1.9 bybp.

@article{Holland1990APP,
  title={A paleoweathering profile from Griqualand West, South Africa: evidence for a dramatic rise in atmospheric oxygen between 2.2 and 1.9 bybp.},
  author={Heinrich Dick Holland and Nicolas J. Beukes},
  journal={American journal of science},
  year={1990},
  volume={290-A},
  pages={1-34}
}
A core drilled near Wolhaarkop in Griqualand West, South Africa, intersected highly oxidized Kuruman Iron Formation below red beds of the Gamagara Formation. The lateral equivalents of the Kuruman Iron Formation in this drill hole consist largely of siderite, ankerite, magnetite, greenalite, and quartz. The oxidation of the Kuruman Iron Formation in WOL 2 occurred almost certainly during weathering prior to the deposition of the Gamagara Formation. The date of this weathering episode is… CONTINUE READING
18 Citations
0 References
Similar Papers

Citations

Publications citing this paper.
Showing 1-10 of 18 extracted citations

Similar Papers

Loading similar papers…