Ergebnisse der österreichischen Projekte des Internationalen Geologischen Korrelationsprogramms (IGCP) bis 1976 / Scientific Results of the Austrian Projects of the International Geological Correlation Programme (IGCP) Until 1976 pp 25-35 | Cite as
Similarities between the Banded Iron Formations of West-Africa and South-America — an Aspect of Continental Drift
Based on various facts it becomes evident that not only the coastal contours fit to form a single shield but also the local tectonics and the sedimentary environment of the numerous iron ore deposits correlate to an extraordinary degree. In view of this it can be postulated that both the shields with their iron ore deposits belonged to a single Precambrian unit. This unit contained a sedimentation basin which developed into a geosyncline with subsequent folding and the morphologic development of mountain chain. This then later formed the dividing line when the Gondwana Continent disintegrated during the lower Cretaceous period.
Major parts of this discussion are excerpts and data, taken from the archives of Exploration and Bergbau GmbH in Düsseldorf, where the results and papers on investigations performed by its staff, and on its behalf, are documented.
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