NOAA logo, National Centers for Environmental Information, National Oceanic and Atmospheric Administration
US National Science Foundation Division of Ocean Sciences
Index to Marine and Lacustrine Geological Samples (IMLGS)

Repository: University of Hawaii at Manoa
Contact the Curator
Ship: Moana Wave
Cruise: MW8701
Sample: MW8701 STA13 RD12
Device: dredge, rock
Latitude: -13.21217
Longitude: 175.15483
Water Depth(m): 1000
Date: 19870130
Storage: room temperature, dry
Province: basin, small ocean

S Pacific Ocean, N Fiji Basin. Chain bag dredge. Field description: pumice
1 :   
Lithology/Mineralogy: igneous (extrusive/volcanic), pumice/scoria
Comments: Dredge consisted of ?100 lbs of pumice. Some very fresh in appearance some quite weathered. Sample 1 - pumice, dark grey, black bands, q + z (?) xtals, Bimodal vesiculation 2-3 mm 1-2 mm, yellow-tan alteration, glass fibrous, edges subrounded. Sample 2 - pumice; dark grey, no banding, pc & q + z (?) xtals, vesicles mode 1-2 mm, patchy yellow-tan & red-brown alteration, shape oblate spheroid, glass fibrous. Sample 3 - pumice, 1+ to med grey, faint irregular banding, pc & g + z (?) xtals; sparse vesicles, brown alteration, edges: rounded to subrounded, glass: straight fibers. Sample 4 - 3 pumice, 1+ grey, no banding; q + z (?) moderately abundant; bimodal vesic 1-2 mm 1 cm, relatively dense, Mn - red brown alteration, edges: sharp, jagged surfaces. Sample 5 - pumice, 1+ grey, no banding, no xtals, relatively dense, vesicles .5-1.5 mm, minor Mn yellow tan alteration, grooves in sample, glass sugary but locally fibrous. Sample 6 - pumice, 1+ brown, no banding, pc, q + z (?) xtals, vesicles 1 mm to 4 cm, yellow-brown & red brown alteration, edges: angular to rounded, glass: sugary & dense, locally fibrous.

When you refer to individual samples/data in the IMLGS, please cite each source repository whose data you use.

More Information and how to cite the IMLGS: doi:10.7289/V5H41PB8.

ESRI iconUse the Interactive Map Interface