GRD024AS0
RAMA7-Dr22-6(1)
Diorite
Mesozoic › Jurassic › Late Jurassic
145.5
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161.0
1
Ritter 154 › Cabinet 37 › Drawer D
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Two small cut small samples measuring ~4x4x3 cm and ~4x3x1 cm from the cut faces. Two smaller uncut broken samples. Grey crystalline interior with occasional lighter spots which appear to be large feldspar. White rind. Billet pieces in a bag. Original label: 28 November, 1980.
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RAMA 7 Dredge 22
Pacific Ocean
Mariana Trench. Original: 11 29.7N, 142 11.6E to 11 30.1N, 142 11.2E. Depth: -7800 to -7680.
Latitude: 11.495°
Longitude: 142.193333°
-7740.0 m a.s.l.
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GRD024AT0: Altered? 80% plagioclase feldspar, 20% augite with thin pigeonite exsolution lamellae (some crystals are cracked with veins cross-cutting the lamellae) (C. Eichler)
N/A
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