quarta-feira, 19 de março de 2014


Ole's #432 was a Chinese mine in a desert scenery where Rare Earth Elements are abundant. The specificity of mine was the main reason to be found in a relatively easy way, IMHO.

Now, away from the desert, bring the green ;)

Well, after (astro)geology and touristic famous rocks, back to the "hard" geology - petrology.

For this new challenge you should find out exact location and the geology (in this case, the petrology) of this place.

No Schott's Rule! Rules, tips and previous WoGEs are collected by Felix on his blog and a KML file is available with all WoGEs.

P.S.: I had to erase one of the image providers because it made it too easy! 

3 comentários:

  1. Mamaku, New Zealand, 38° 5.60'S, 176° 4.8' E

    I assume that this is the type locality for the Mamaku Ignimbrite, a 0.22Ma ignimbrite which here forms a plateau. Rotorua Lake is east of the area, a large water-filled collapse caldera.

    I thought this would be hard to find, and that there were very few clues. Then I realised that it is a young landscape (mounds and ridges on a flat plain, so there is no deep weathering), in a former British colony (golf course in the upper right corner and a "planned" town with straight streets), and most likely good grazing land (few plowed fields and many green ones). And with some timber logging still going on.

    All this made me look on the North Island of New Zealand - and there it was!

  2. Yep, Ignimbrite was the key to this challenge! It's not only around Mamaku, but a big area around Rotorua and to the NW have large deposits.
    Back to you, again, Ole!

  3. I think this one will be harder: http://overburdenblog.blogspot.no/2014/03/luis-woge-433-seemed-almost-impossible.html