Mittwoch, 20. November 2013

Where on Google Earth 409

With a bit of luck, i solved my second WOGE, the Brandberg intrusive granite.
Therefore i have a new task for you, which should not be too complicated:




As usual:
Find the location on GoogleEarth and clearly define it's location (lat/long) for example. You will also have to explain the geology the best you can. Your  prize (and duty) will be to host the next WoGE.

Kommentare:

  1. As this WOGE is now online for about a week, it might be time for a "big" hint:
    Similar geologic features of the same origin as the one in this picture can be found over a much wider area than shown.

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  2. I would say: Switzerland in 100 milions years, when the Alps are eroded hills......

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  3. I'm afraid this is wrong, but with rather fast moving plates and the correct moving direction, the area could theoretically be where Switzerland is today within 100 million years.

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  4. As we are online sind close to two weeks, I think we could change the picture:

    -31.911°, 26.258°: Moutains near Tarkastad in the Eastern Cape province of South Africa on a plain to the north of the Winterberg mountain range.

    The mountains are part of the South African Karoo Super Group. The Karoo basin followed the typical evolution of a foreland basin with the subdivision Ecca Group representing the 'flysch' component and the Beaufort Group representing the overlying 'molasse' fluvial type sediments. Part of the Bedfourd Group is the Upper Tarkastad Subgroup which is divided into the Katberg Formation: Arenaceous deposits of red and olive-yellow mudstones, deposited in a braided fluvial system, and the Burgersdorp Formation, deposited in a low-sinuosity fluvial system. (http://en.wikipedia.org/wiki/Beaufort_Group)

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    1. Very nice, I didn't expect it to take that long to solve.

      You’re right about the geology, what may be also interesting is that within the Beaufort-Formation, some of the oldest fossils of mammal ancestors were found.
      Actually the mountains itself are part of more weathering resistant basaltic/doleritic intrusive sheets within the sediments. These intrusive sheets ("saucer shaped sheets") were formed contemporary to the Karoo flood basalts. Together with dykes all over the area they represent a feeder system to the extrusive basalts. The shown sill is also described as "Golden Valley Sill".

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  5. Will South African rocks be in the Switzerland area in 100 M.y.?
    I'm not an expert in that field, but ... I found this and I didn't go south of the Sahara ...
    Well ... let's go to the next one - Felix, bring it on! :)

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    1. I'm not saying it will be there, but with a speed of about 8-9 cm/year it would be possible in theory ...

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  6. WOGE410 can be found here:

    http://woge-felix.blogspot.de/2013/12/where-on-google-earth-410.html

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