Andrew's WoGE #572 was one of those where finding out what it IS and then searching for that was far more efficient than searching for WHERE and then find out WHAT - in this case, the Henbury Meteor Crater field in Australia.
This time there is a location you can find, and a lot of geology to find too. There is even a chance that you could find it by searching for THAT kind of geology, too!
As always, the first person to post the position and whatever is interesting about the geology/hydrology/geowhatever in this location, wins the privilege of hosting the next WoGE.
Previous WoGEs are collected by Felix on his blog and a KML file.
And ... what kind of geology is this? O:)
SvarSlettThere are three very different geologies here. Two of them make sense in this setting (sort of), the third one is quite unusual in this kind of setting.
SlettIn any case, it is a kind of hidden geology :-)
SlettIt looks like as someone has dropped some pieces of a very large pan cake.
SvarSlettThe pieces are on the other end of the island.
SvarSlettNobody here to solve? So I will do it.
SvarSlettMasirah Island
20°28′16″N 58°48′55″E
Masirah Island is almost entirely composed of a highly faulted and unmetamorphosed folded ophiolite complex which is unconformably overlain by unfolded Eocene limestone and is correlated with the Upper Cretaceous Semail Complex of the Oman Mainland. The ophiolites include serpentine, basalt, pyroclastics and some radiolarite, and intrusive complexes largely composed of serpentine, peridotite, picrite, anorthosite, gabbro and granite, with transitional varieties. Emplacement structures within the intrusions are extremely complicated, with the gabbros full of blocks mostly of serpentine up to 1 km or more in diameter.
Correct again, Elisabeth!
SvarSlettFinding limestone on an ophiolite is not uncommon, but finding granite in an ophiolite is rather unusual.
The other end of the island has some very nice melange, with blocks several hundred meters across.
Over to you!
So this means the ophiolites had been subducted and Granite builded within the Ophiolite-Layer. Afterwards the whole thing rose up again to the surface. If this would be the case, the Ophiolites should show signs of metamorphose...?
SlettNew contest you can find here:
SvarSletthttp://woge-elisa.blogspot.de/2016/06/where-on-google-earth-574.html