Pennsylvania Eastern Region Abstract Competition. The Wright Center for Graduate Medical Education (Formerly Scranton Temple Residency Program) in Scranton, PA will host the ACP PA Eastern Regional Meeting on October 6, 2012 at The Commonwealth Medical College (TCMC) in Scranton. The competition is open to all residents in the Pennsylvania Eastern Region.
Diamonds are formed as an allotrope of the element carbon, at depths greater than 90 miles. The pressure and heat at this depth is critical to the formation of the diamonds thâ¦at are mined at the surface today. At crustal pressures, the stable form of carbon is the allotrope graphite.
This carbon probably was pulled during plate subduction, since eclogitic diamonds were formed mainly in old subduction regions. These diamonds have been carried to the surface in a few places by violent eruptions caused by the release of active fluids, probably mainly water, in the hot rocks of the upper mantle.