GRD021RS0
RAMA7-Dr15-2(1)
Pyroxenite
Mesozoic › Jurassic › Late Jurassic
145.5
-
161.0
1
Ritter 154 › Cabinet 37 › Drawer B
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Dark green, fine-grained crystalline sample with tan limey crust. ~5 x 2 cm. Billet pieces. Original label: 20 November, 1980.
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RAMA 7 Dredge 15
Pacific Ocean
Mariana Trench. Original: 11 39.6N, 142 11.1E to 11 40.2N, 142 10.8E. Depth: -5780 to -5500.
Latitude: 11.67°
Longitude: 142.18°
-5640.0 m a.s.l.
N/A
Large orthopyroxene (pink pleochroism) with slight green alteration
2.5
plane
Large orthopyroxene with smaller opx and plagioclase crystals
2.5
crossed
-
scan
crossed
GRD021RT0: Interstitial fine-grained plagioclase and pyroxene as well as larger euhedral plagioclase (albite twinning) and orthopyroxene crystals; some slight alteration on edges of larger pyroxenes (C. Eichler)
N/A
N/A