File:The Quarterly journal of the Geological Society of London (1898) (14755838696).jpg

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Identifier: quarterlyjourna541898geol (find matches)
Title: The Quarterly journal of the Geological Society of London
Year: 1845 (1840s)
Authors: Geological Society of London
Subjects: Geology
Publisher: London (etc.)
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Biodiversity Heritage Library

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hey•again disappear under the Karoo Formation. Although much com-plicated by faulting on these farms (see tig. 1, p. 82), the different seriesof conglomerates (Main, Bird, and Kimberley) can be recognized,both by stratigraphical position and petrological character. Turningnow to the western section of the Rand, we find on the farm Wit-portje, near Roodepoort, 13 miles west of Johannesburg, the MainReef Series thrown north a distance of 3 miles by a great fault,known as the Witportje break. The beds resume their normal ^ Gribson, Quart. Journ. Greol. Soe. vol. xlviii (1892) p. 409; Schmeisser,* Ueber Vorkomraen u. Grewinnung der nutzbaren Mineralien in der siidafrikan.Republik/ Berlin, 1894; Hatch & Chalmers, The Gold Mines of the Eand,London, 1895, pp. 22-87; Karl Futterer, Afrika in seiner Bedeutung fiirdie Groldproduktion, Berlin, 1895; De Launay, Les Mines dOr du TransvaalParis, 1896; also Trans. Fed. Inst. Min. Eng. vol. xi (1896) p. 378. Q. J. G. S. No. 213. G CJ 5; • i-i
Text Appearing After Image:
4i O TO eO ~ Vol. 54.) GEOLOGY OF THE WITWATERSRAND, ETC. course, namely, east, on the properties of the French Rand andChamps dOr Gold Mining Companies. On these properties theMain Eeef Series is known as the Bothas Series, while theKimberley Series is called the Battery Reef Series. Traced stillfarther, the beds swerve to the south through Randfontein andUitvaalfontein, until again cut off by an east-and-west fault, whichcarries them on to the farms Droogeheuvel, whence they may befollowed south-west through Haartebeestfontein and Witfontein. Examined in detail in the mine-workings, the beds are found tohave suffered numerous minor dislocations by cross-courses, thefaulting being in many cases accompanied by igneous intrusion (asin fig. 2). Several instances of overthrust and reduplication by Fig. 2.— Upthrow fault in tJte Crown Reef Mine.

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https://www.flickr.com/photos/internetarchivebookimages/14755838696/

Author Geological Society of London
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(Reusing this file)		 At the time of upload, the image license was automatically confirmed using the Flickr API. For more information see Flickr API detail.
Volume
InfoField
1898
Flickr tags
InfoField
  • bookid:quarterlyjourna541898geol
  • bookyear:1845
  • bookdecade:1840
  • bookcentury:1800
  • bookauthor:Geological_Society_of_London
  • booksubject:Geology
  • bookpublisher:London__etc__
  • bookcontributor:Smithsonian_Libraries
  • booksponsor:Biodiversity_Heritage_Library
  • bookleafnumber:119
  • bookcollection:biodiversity
  • BHL Collection
  • BHL Consortium
Flickr posted date
InfoField
29 July 2014
Object location26° 10′ 54″ S, 28° 21′ 17″ E Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo



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