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Hi John, Whoops - how could I have forgotten! You are absolutely right - the geological aspects are 'almost' as important as the archaeological - whoops again! Seriously though, thanks for a kind reminder. Kindest regards, Trevor. ----- Original Message ----- From: "JOHN BERRY" <[log in to unmask]> To: <[log in to unmask]> Sent: Sunday, June 22, 2003 6:46 PM Subject: Re: [MINING-HISTORY] historically important mines > Don't forget the geological aspects. > > (1) Geological uniqueness/classic example of type: In the US White Pine Copper in Michigan (the only large shale-hosted stratabound Cu deposit in N.Am., one of only 3 such in the world (Kupferschiefer, Zambian Cu-Belt). Cornish Tin and Kaolin deposits (both unique & classic)), Parys Mtn (only? ?Sedex Cu in UK). > > (2) Quality of Mineral Specimens/Importance in development of mineralogical science: > In the UK the Lake District hematite mines (famous for the quality of specimens), > Peak Didtrict Blue John mines; Scottish strontianite mines/occurrences. > > (3) Importance in evolution of geological science: > Cornwall, Peak District, Welsh anthracite mines. > > As with other reasons for historic designation - no need to preserve every example (e.g. all tin mines in Cornwall), but only representative or outstanding examples (e.g.: in Cornish case perhaps a mine that has been extensivelty studied and shows paragenesis and alsdotransition to Cu ores at depth). > > John > > > > John Berry Associates > Geology & Remote Sensing > 5000 Beverly Hills Drive > AUSTIN, TX 78731, U.S.A. > +1-512-452-8068 (Voice) > +1-512-413-9270 (cell) > [log in to unmask] > >