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The Steinheim Basin and the Pretoria Salt Pan. Volcanic or Meteoric Origin?

Published online by Cambridge University Press:  01 May 2009

Herbert P. T. Rohleder
Herbert P. T. Rohleder
Affiliation:
Tanga, Tanganyika Territory.
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Extract

When looking through the bibliography referring to the crypto– volcanic phenomena of Swabia we find that it has been quite customary to explain the origin of the “Steinheim Basin” by the well–known facts which have been ascertained in the Ries of Nördlingen. When doing so one important fact has been deliberately ignored, viz, that only the Steinheim basin is actually cryptovolcanic, whereas the Ries of Nördlingen exhibits undeniable proofs of extensive volcanic activity. There are rhyolitic tuffs, weathered– out lava cords and lava slabs, partly absorbed crystalline rocks, et alia. In the case of the Ries of Nördlingen the explanation of the vast caldera and the various geologic abnormalities must obviously be sought in volcanic activity.

Type
Original Articles
Information
Geological Magazine , Volume 70 , Issue 11 , November 1933 , pp. 489 - 498
Copyright
Copyright © Cambridge University Press 1933

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References

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