This is a place for all questions about Geology (not only related to Petroleum exploration and production). You can also ask our experts to determine rock types from photographs in this forum.
Tue Feb 08, 2011 11:10 am
Sun Feb 13, 2011 10:04 am
It's difficult too say what these rocks are, but I suspect they are not sedimentary but more igneous or metamorphic. The last one could however be a coarse grained clastic, that has been undergoing high levels of diagenisis in my oppinion. My first guess would be an extrusive igneous rock as I small crystals..
make some pictures of the texture and grains for a better clasification..
Tue Nov 20, 2012 7:14 am
could be gabbro, or diabas
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