PDA

View Full Version : WTH happened here??? discussion



GEHFileBot
03-14-2006, 09:57 AM
This is a discussion thread for the following file:<br><br><b><a href=http://www.googleearthhacks.com/dlfile16034/WTH-happened-here???.htm>WTH happened here???</a></b><br><br>Does anyone know what happened here?!? If you do, email me and tell me and I will edit this. And wth is that green stuff in the holes?!?<br><br><img src=http://www.googleearthhacks.com/images/new/080505/109481admin.jpg>

phillips352
03-14-2006, 09:58 AM
looks like inactive volcanos on the Galapagos Islands, filled with water...

MikeNTX
03-14-2006, 10:41 AM
From their size I would say it is inactive volcanoes too. But seeing that this is the Galapagos Islands. I am sure there are many websites that cover the geology of the island and can say what they are.

McMaster_de
03-14-2006, 11:15 AM
Pyroclastic cones located near the shore, called littoral cones, such as Tagus and Beagle Cone, are common in the Galapagos. Darwin was the first to recognize that these cones form when basaltic magma comes in contact with seawater. When this occurs, the water is flashed to steam, and the magma fragments in to small ash particles that react with the steam to form palagonite, the light colored material of which the cones are composed. The entire process is quite explosive, and the ash is thrown into the air. It settles back to build a cone around the vent.

http://www.geo.cornell.edu/geology/GalapagosWWW/VDarwin.html