GRD01Z7S0

RAMA7-Dr7-2

Andesite

Mesozoic › Cretaceous › Late Cretaceous
65.5 - 99.6

1

Ritter 154 › Cabinet 37 › Drawer A

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Small cut greenish extrusive pebble. Original label: 9 November, 1980.

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RAMA 7 Dredge 7

Pacific Ocean
Philippine Trench. Original: 10 37.2N, 126 32.5E to 10 36.9N, 126 32.2E. Depth: -9335 to -9100.
Latitude: 10.536667°
Longitude: 126.541667°
-9217.0 m a.s.l.

N/A

Plagioclase, pyroxene, and oxides in brownish matrix

5.0

plane

Plagioclase (some albite twinning), pyroxene, and oxides

5.0

crossed

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scan

crossed

GRD01Z7T0: 50% plagioclase (little to no twinning; albite twinning, if present), 10% oxides, 5% pyroxene, 35% greenish-brown matrix; Altered? (C. Eichler)

N/A

N/A