another off the beaten track place, but--in the fiords of upper Glacier Bay, Alaska, there are spectacular dike exposures, with a lot of 3D control added in the cliff faces above shoreline exposures. dikes are Miocene(?) cutting Mesozoic granitoids and metamorphic rocks.
Terry Pavlis
-----Original Message-----
From: Tectonics & structural geology discussion list [mailto:[log in to unmask]] On Behalf Of John F. Dewey
Sent: Monday, September 12, 2011 8:33 AM
To: [log in to unmask]
Subject: Re: Mafic dykes
>_Dear Colleagues,
I am seeking out 100% exposed marine rock platforms where mafic dykes
and their wall structures, and, ideally, relay/transform offsets, and
terminations can be studied. I am seeking places where dykes were
injected laterally away from volcanic centres and places where dykes
were injected vertically beneath volcanic centres. I have visited a
few spots in Arran, Mull, and Skye but I am looking for a lot more.
Any help and suggestions will be greatly appreciated.
Best wishes,
John
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Prof. John F. Dewey FRS, M.R.I.A., FAA, Mem. Acad. Eur., Mem.
US Nat. Acad. Sci., Distinguished Emeritus Professor University of
California, Emeritus Professor and Supernumerary Fellow, University
College Oxford.
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