DRFT06RR-091D (dredge, rock)
Interval 1 (dredge, rock)
1 basalt sample MnO crust + several pieces coquina w/basalt frags. 3 groups. Group 1:heavily weathered ol-pl-phyric basalt, olivine completely altered to iddingsite, secondary calcite prisms in vugs, abundant basaltic lithic inclusions + glassy rind Group 2: coarse, loosely cemented coral-limestone-basalt conglomerate. Group 3: brown mud containing radiating prisms of Fe/Mn oxide. Shell/coral hash present.
July 2011 updated description from Curator: chalk, mn crust, mn coated breccia, mn crust, hydrothermally altered mn crust
|Material Details|| |
some samples exhibit fresh glass
weathering - heavy, very
- Date Collected
- Material Details
room temperature, dry
Line: -23.988,-82.548 -23.991,-82.541
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Sample Number: DRFT06RR-091D
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