GRD028WS0
CIRCE 87-3
Mafic
Cenozoic › Paleogene › Eocene › Early Eocene
48.6
-
55.8
2
Ritter 154 › Cabinet 34 › Drawer A
-
A very large cut sample, measures ~8x7x8 cm from cut surface. Fine-grained green-grey crystalline interior with black and yellow orbs ~2 mm in diameter. Very high specific gravity. Mn-Fe crust on sample. Billet. Original label: 14 August, 1968.
-
CIRCE
Indian Ocean
Original: 9 00.05, 67 17.0 E. Depth: -2050 to -1935.
Latitude: 9.00083°
Longitude: 67.283333°
-1975.0 m a.s.l.
N/A
ine- to medium-grained, interlocking plagioclase (simple twinning and oscillatory zonation) and pyroxene. Small, sub-hedral opaques are common. Slight green alteration (serpentine?) is present.
2.5
plane
ine- to medium-grained, interlocking plagioclase (simple twinning and oscillatory zonation) and pyroxene. Small, sub-hedral opaques are common. Slight green alteration (serpentine?) is present.
2.5
crossed
Slide 1
scan
crossed
Scrap
scan
crossed
GRD028WT0: Slide 1: Fine- to medium-grained, interlocking plagioclase (simple twinning and oscillatory zonation) and pyroxene. Small, subhedral opaques are common. Slight green alteration (serpentine?) is present. (C. Eichler)
GRD028WT1: Scrap: A small amount of sample is on the slide. Fine- to medium-grained, interlocking plagioclase (simple twinning and oscillatory zonation) and pyroxene. Small, subhedral opaques are common. Slight green alteration (serpentine?) is present. (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.