GRD023ES0

RAMA7-Dr19-6

Basalt

Mesozoic › Jurassic › Late Jurassic
145.5 - 161.0

1

Ritter 154 › Cabinet 37 › Drawer C

-

Two thinly cut slabs (~6x3x0.5 cm and ~5x3x2 cm). Grey-green rock containing small clear feldspar laths and glomerocrysts, occasional amphibole? Fe-Mn crust on sample. Original label: 25 November, 1980.

-

RAMA 7 Dredge 19

Pacific Ocean
Mariana Trench. Original: 11 48.3N, 142 11.9E to 11 49.0N, 142 11.3E. Depth: -4440 to -4200.
Latitude: 11.805°
Longitude: 142.19833°
-4320.0 m a.s.l.

N/A

Large plagioclase glomerocryst in matrix of fine crystals, some Fe-staining

2.5

plane

Large plagioclase glomerocryst in matrix of fine crystals, some smaller plagioclase crystals

2.5

crossed

-

scan

crossed

GRD023ET0: Large resorbed plagioclase (individual crystals and glomerocrysts) and pyroxene in a fine-grained matrix composed of plagioclase, pyroxene, and euhedral cubic opaques (C. Eichler)

N/A

N/A