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To: geoffreycs who wrote (8762)7/8/1999 9:55:00 PM
From: Chuca Marsh  Read Replies (1) | Respond to of 11603
 
ALTERATION: Any chemical or mineralogical change in a rock caused by chemical or physical action.
ALTERATION HALO: A rim of minerals formed in the wall rock round a vein or ore as the result of HYDROTHERMAL ALTERNATION. MINERAL ZONING in the halo indicates the changing nature of the HYDROTHERMAL SOLUTION during its passage.
The dictionary of Geology Philip Keary CC 1996 ISBN 014 051 277 2 Penguin Books
I had to write this out from the Dictionary, and maybe some other books would help underscore the importance of what you just POO POOed in that cursary statement, weakly, so ...how can you say that on few pictures...? Weird how your science is not my science, read some more write in enlargement of an expansion of knowledge.
To: +Chuca Marsh (8761 )
From: +geoffreycs Thursday, Jul 8 1999 9:37PM ET
Reply # of 8762

Your photos are of consolidated and weakly altered basaltic volcanics quite different to the fresh unconsolidated cinders in CCREs photos.
But I see no sign of economic mineralization in your photos.

Rhobic sounds interesting( Geo - it is spelt RHOMBIC )
rhombic.com
ChuckalteredSTRONG