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welded tuff

   Also found in: Dictionary/thesaurus, Wikipedia 0.01 sec.
welded tuff [′wel·dəd ′təf]
(petrology)
A pyroclastic deposit hardened by the action of heat, pressure from overlying material, and hot gases. Also known as tuff lava.


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This zone represents a structural contact zone between the lacustrine/epiclastic unit and the welded tuffs.
CNR CLAIMS - 24 Claims - 840 Acres - 50 percent GA Extensive surface sampling, outlined three large areas of consistent gold/silver mineralization leaking through an unmineralized welded tuff.
CNR CLAIMS - TWENTY-FOUR CLAIMS - 480 ACRES - 100 PERCENT GA Extensive surface sampling, recently outlined three large areas of consistent gold/silver mineralization leaking through an unmineralized welded tuff cover.
 
 
 
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