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Index to Marine and Lacustrine Geological Samples (IMLGS)

Repository: University of Rhode Island
Contact the Curator
Ship: Ronald H. Brown
Cruise: RB-03-03 (RB0303)
Sample: 59 - GC
Device: core, gravity
Latitude: 12.3275
Longitude: -61.708
Water Depth(m): 1777
Date: 20030318
PI: Carey
IGSN: URI000095
Core length (cm): 51
Storage: refrigerated
Province: seamount or seamount province
1 :    0 to 2 cm in core
Primary composition: volcanics
Primary texture: mud or ooze
Secondary composition: siliceous, sponge spicules
Secondary texture: mud or ooze
Munsell Code: 10YR3/2
Comments: Smear slide at 0 cm; crystals(plagioclase, amphibole, pyroxene), glass/scoria, clay, reddish brown algal? material, sponge spicules.
2 :    2 to 6 cm in core
Primary composition: volcanics
Primary texture: ash
Munsell Code: 5Y2.5/2
Comments: Interbedded with clayey silt, smear slide at 4 cm; glass/scoria, crystals(amph, px, plg, llithics), coarse sand to silt size - ave. med. sand
3 :    6 to 8 cm in core
Primary composition: volcanics
Primary texture: mud or ooze
Secondary composition: siliceous, sponge spicules
Secondary texture: mud or ooze
Munsell Code: 5Y2.5/2
Comments: Smear slide at 8 cm; crystals(amph, px, plg), glass/scoria, sponge spicules
4 :    8 to 10 cm in core
Primary composition: volcanics
Primary texture: ash
Munsell Code: 5Y2.5/2
5 :    10 to 11 cm in core
Primary composition: volcanics
Primary texture: mud or ooze
Munsell Code: 5Y4/3
6 :    11 to 14 cm in core
Primary composition: volcanics
Primary texture: ash
Munsell Code: 5Y2.5/2
Comments: Volcanic glass, smear slide at 13 cm; glass/scoria, crystals(plg, amph, px), med. sand size
7 :    14 to 18 cm in core
Primary composition: volcanics
Primary texture: sandy mud or ooze
Secondary composition: siliceous, sponge spicules
Secondary texture: sandy mud or ooze
Munsell Code: 5Y4/3
Comments: Color from 5Y 4/3 to 5Y 3/2; volcanic glass, smear slides at 15 cm and 18 cm;(15) - crystals(amph,px,plg), glass/scoria, sponge spicules, clay to silt - ave. silt (18) - glass/scoria, crystals(amph,px,plg), clay- ave. fine sand
8 :    18 to 21 cm in core
Primary composition: volcanics
Primary texture: ash
Secondary composition: calcareous, foraminifera
Secondary texture: muddy sand
Munsell Code: 5Y2.5/2
Comments: Color from 5Y 2.5/2 to 5Y 4/3; interbedded with clay, smear slide at 21 cm; glass/scoria, crystals(plg,px,amph), foram, med. sand to silt - ave. med. Sand
9 :    21 to 33 cm in core
Primary composition: volcanics
Primary texture: mud or ooze
Secondary composition: siliceous, sponge spicules
Secondary texture: mud or ooze
Components: calcareous, foraminifera
siliceous
Munsell Code: 5Y5/2
Comments: Color from 5Y 2.5/2 to 5Y 4/3; interbedded with ash layer that are not as coarse grained, smear slide at 28 cm; crystals(amph,px,plg, glauconite, hematite), glass/scoria, sponge spicules, forams, silicoflagellates.
10 :    33 to 44 cm in core
Primary composition: volcanics
Primary texture: ash
Munsell Code: 5Y2.5/2
Comments: Color from 5Y 2.5/2 to 5Y 4/3; interbedded with clay, bioturbated?, smear slide at 39 cm; scoria/glass, crystals(amph,px,plg), med. sand to silt - ave. fine sand
11 :    44 to 51 cm in core
Primary composition: volcanics
Primary texture: ash
Munsell Code: 5Y2.5/2
Comments: Smear slide at 51 cm; scoria/glass, crystals(amph,px,plg?), coarse sand to clay - ave. v. fine sand
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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.


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