GRD028MS0
CIRCE 86-1
Conglomerate
Cenozoic › Paleogene › Eocene › Middle Eocene
37.2
-
48.6
2
Ritter 154 › Cabinet 34 › Drawer A
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One large (~7x4x6.5 cm) cut sample and two very small (~4x2x1 cm) uncut samples. Tan to green clasts (~ 3mm) in a greenish mudstone matrix. Patchy Fe-Mn crust. Original label: 12 August, 1968.
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CIRCE
Indian Ocean
Original: 12 00.05, 62 18.0 E. Depth: -2350 to -1650.
Latitude: 12.000833°
Longitude: 62.3°
-2000.0 m a.s.l.
N/A
Slide 1: Several small clasts in an opaque-rich green matrix
2.5
plane
Slide 1: Several small clasts in an opaque and quartz-rich matrix
2.5
crossed
Slide 1
scan
crossed
Slide 2
scan
crossed
GRD028MT0: Slide 1: Lithic fragments appear to be altered? igneous and metamorphic with abundant fine-grained feldspar crystals and opaques; matrix is fine-grained quartz and opaques (C. Eichler)
GRD028MT1: Slide 2: Polished very thin around the edges. Lithic fragments appear to be altered? igneous and metamorphic with abundant fine-grained feldspar crystals and opaques; matrix is fine-grained quartz and opaques. (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.