GRD025VS0 - Geological Teaching Collection at Scripps

Record #2792 of 5779
GRD025US0 GRD025WS0

IGSN:

GRD025VS0

Sample ID:

ERDC-27D-10

Sample Type:

Siltstone

Sample Age:

Unknown
None -

Number TS:

Storage:

Ritter 154 › Cabinet 37 › Drawer E

Modifiers:

fine-grained,laminated

Notes:

One cut sample measuring ~2x3x4 cm. Light grey, very fine-grained with laminations and Fe-stains. Patchy Fe-Mn crust. Billet and billet pieces. Original label: 21 September, 1975.

Ancillary Data Notes:

Series:

ERDC Dredge 27

Location:

Pacific Ocean
-

Photos:

N/A

Micrographs:

Notes:

Very small acicular green crystals in the matrix

Mag:

40.0

Polarized:

plane

Notes:

Very small acicular green crystals in the matrix

Mag:

40.0

Polarized:

crossed

Notes:

Opaque with rust-halo in matrix of acicular green crystals

Mag:

10.0

Polarized:

plane

Notes:

Opaque with rust-halo in matrix of acicular green crystals

Mag:

10.0

Polarized:

crossed

Notes:

Mag:

scan

Polarized:

crossed

Thin Sections:

GRD025VT0: Very fine acicular crystals, first-order greys in XPL and greenish in PPL; small patches of Fe-staining; occasional anhedral opaques (C. Eichler)

Documents:

N/A

References:

N/A

Geological Teaching Collection

Geological Teaching Collection

IGSN: GRD025VS0 Sample ID: ERDC-27D-10 Permalink