GRD022BS0
RAMA7-Dr17-4
Ignimbrite
Mesozoic › Jurassic › Late Jurassic
145.5
-
161.0
1
Ritter 154 › Cabinet 37 › Drawer B
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Yellowish cobble (~5 cm in diameter) with a small patch of Fe-Mn crust. Rind of pumice and lithic fragments ranging in size from 1 mm to 2 cm; billet pieces. Original label: 23 November, 1980.
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RAMA 7 Dredge 17
Pacific Ocean
Mariana Trench. Original: 11 24.8N, 142 09.41E to 11 25.1N, 142 09.3E. Depth: -9050 to -8730.
Latitude: 11.4133°
Longitude: 142.1566°
-8890.0 m a.s.l.
N/A
Edge of lithic fragment (larger vesicles) in host; resorbed feldspar in both the lithic fragment and host
5.0
plane
Edge of lithic fragment (larger vesicles and slightly darker) in host; resorbed feldspar in both the lithic fragment and host
5.0
crossed
-
scan
crossed
GRD022BT0: Heavily resorbed feldspar crystals, resorbed pyroxene and amphibole; many lithic fragments are not obvious since their groundmass glass is a similar color (brown) to that of the host; (C. Eichler)
N/A
N/A