World Data Service for Geophysics

Index to Marine and Lacustrine Geological Samples (IMLGS)
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Repository: SOEST [Contact the Curator]
Ship: Kana Keoki
Cruise: KK840824-02
Sample: KK840824 STA82 RD58
Device: dredge, rock
Latitude: 25.27633
Longitude: -162.0675
Water Depth(m): 3000 to 2300
Date: 19840903
Storage: room temperature, dry
Province: seamount or seamount province

W. Mendelssohn Seamount, NW Slope
1 :   
Comments: ~ 50 lbs. 1 cloth bag. 1 large slab. 20 hand specimens. All samples had some Fe-Mn crust. Large slab is 72 x 73 x 7 cm Mn crust pavement, with ~ 1 cm thick Fe-Mn on substrate of altered hyloclastite breccia and calcareous (?) mudstone. Substrate ranges from slightly altered to moderately altered to altered vesicular to massive basalt, altered hyloclastite breccia, altered hyloclastite-basalt conglomerate, altered hyloclastite tuff breccia and brown calcareous (?) mudstone. Fe-Mn crusts range from 1 1/2 cm to 1 mm in thickness. Depth Range: 2300 - 3000 m (conservative 2200 - 3100 m).