GRD028CS0
CIRCE 74-Z
Feldspathic Sandstone
Mesozoic › Cretaceous › Early Cretaceous › Aptian
112.0
-
125.0
1
Ritter 154 › Cabinet 34 › Drawer A
-
Impregnated (epoxy) sandstone. Concentric layers and cleavage/jointing. Fe-Mn crust on exterior. Billet and billet pieces. Original label: 19 July, 1968.
-
CIRCE
Indian Ocean
Original: East (?) flank of Ninetyeast Ridge, 16 43.65, 88 46.9E to 16 43.25, 88 44.0E
Latitude: 16.7275°
Longitude: 88.781667°
N/A
Twinned plagioclase crystals in a matrix of plagioclase, orthopyroxene and opaques
5.0
plane
Twinned plagioclase crystals in a matrix of plagioclase, orthopyroxene and opaques
5.0
crossed
-
scan
crossed
GRD028CT0: Composed of fine-grained euhedral plagioclase (simple twinning), pyroxene, opaques, and spots of very fine-grained green mineralization (C. Eichler)
N/A
Fisher_GSABulletin_1971
Fisher, R.L., Sclater, J.G., McKenzie, D.P., 1971, Evolution of the Central Indian Ridge, Western Indian Ocean: Geological Society of America Bulletin, v. 82, no. 3, p. 553-562.