World Data Service for Geophysics

Index to Marine and Lacustrine Geological Samples (IMLGS)
an international partnership

doi:10.7289/V5H41PB8


Repository: SOEST [Contact the Curator]
Ship: Moana Wave
Cruise: MW8518
Sample: MW8518 STA52 RD16
Device: dredge, rock
Latitude: -3.70117
Longitude: 151.869
Water Depth(m): 2070 to 2000
Date: 19851227
IGSN: UHMHAP1TU
Storage: room temperature, dry
Province: basin, small ocean

Manus Basin. Samples 1,2,3,4 and 6 available from this dredge.
1 :   
Comments: ~55 kg total lava; 3 subdivisions as follows: 1) Glassy vesicular sheet flows - some have nice ropey texture; some hydrothermal alteration & palagonitization; no obvious phenocrysts. 2) Non-glassy, massive lavas - vesicular but micro-sized <0.1 cm; hydrothermal staining; possible olivine phenocrysts (rare). 3) Vesicular pillows - large, irregularly-shaped vesicles; no apparent phenocrysts; hydrothermal staining; some glass patches. 6 pails total. NOTE: Glasses present are extremely fresh!
_