. Collected reprints, Essa Institute for Oceanography. Oceanography MIOGEOCLINES IN SPACE AND TIME 579 lies beneath younger beds of the Venters- dorp, Transvaal, or Karroo systems or com- binations thereof. It seems to us that the entire Witwaters- rand possibly might be a middle Precam- brian miogeocline. The thick andesites of the overlying Ventersdorp System and the underlying Dominion Reef System, com- pleting the Witwatersrand triad, need not be included environmentally with the Wit- watersrand proper in the development of the miogeocline. Unfortunately, the geology of the W
. Collected reprints, Essa Institute for Oceanography. Oceanography MIOGEOCLINES IN SPACE AND TIME 579 lies beneath younger beds of the Venters- dorp, Transvaal, or Karroo systems or com- binations thereof. It seems to us that the entire Witwaters- rand possibly might be a middle Precam- brian miogeocline. The thick andesites of the overlying Ventersdorp System and the underlying Dominion Reef System, com- pleting the Witwatersrand triad, need not be included environmentally with the Wit- watersrand proper in the development of the miogeocline. Unfortunately, the geology of the Witwatersrand is poorly understood, especially to the south, owing to a thick overburden. Brock and Pretorius (19646, p. 554) note that the source of sediments was to the north, for conglomerate thick- nesses and particle size diminish southward. If our evaluation is correct, the restored sec- tion thickens to the south and eventualh' FEET BLIND RIVCR aft£A Lorrain tV\_y----- â â â - ^ -"^. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Institute for Oceanography; Atlantic Oceanographic Laboratories (U. S. ); Pacific Oceanographic Laboratories; United States. Environmental Science Services Administration. Research Laboratories. Washington, D. C. : U. S. Dept. of Commerce, Environmental Science Services Administration, Research Laboratories : For sale by the Supt. of Docs. , U. S. G. P. O.
Size: 1646px × 1518px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., book, bookcentury1900, bookcollectionamericana, bookleafnumber112
