Figure 11. Reconstruction of seafloor volcanic events at times 1, 2 and 3 in the Marshall Zone. A series of sulfide lenses and vein systems formed mainly after the accumulation of rhyolite B, during the accumulation of volcaniclastic rhyolite A. The thicker upper part of the rhyolite A hangingwall is massive and lacks significant mineralization. Rhyolite A is overlain by thin maroon siltstones, then mafic to intermediate volcaniclastic turbidites and mafic sills of the Thelwood Formation.

Home - Company Profile - Global Portfolio - Mineral Deposit Publications
Methodology - General Research Publications - Contact Us

Page design copyright © 1998 Palomar Media Corporation. All rights reserved.
Registered trademarks are used under license and are the property of their respective owners.