GRD021ZS0
RAMA7-Dr16-1
Basalt
Mesozoic › Jurassic › Late Jurassic
145.5
-
161.0
1
Ritter 154 › Cabinet 37 › Drawer B
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Dense, small (~7x4 cm) sample. Fine-grained purple groundmass with white flecks (feldspar glomerocrysts) and Fe-rust blebs. Billet pieces. Original label: 21 November, 1980.
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RAMA 7 Dredge 16
Pacific Ocean
Mariana Trench. Original: 11 13.1N, 142 12.1E to 11 12.7N, 142 11.2E. Depth: -9540 to -9335.
Latitude: 11.218333°
Longitude: 142.201667°
-9408.0 m a.s.l.
N/A
Euhedral plagioclase phenocrysts
5.0
plane
Euhedral plagioclase phenocrysts
5.0
crossed
-
scan
crossed
GRD021ZT0: Abundant small and large euhedral plagioclase phenocrysts and glomerocrysts (very nice twins and oscillatory zonation); small pyroxenes that are in bad shape; borwn fine-grained matrix; Skeletal morphology of a few large plagioclase (C. Eichler)
N/A
N/A