GRD02NFS0 - Geological Teaching Collection at Scripps

Record #3456 of 5779
GRD02NES0 GRD02NGS0

IGSN:

GRD02NFS0

Sample ID:

Calif 18

Sample Type:

Eclogite

Sample Age:

Mesozoic › Jurassic
145.5 - 201.6

Number TS:

Storage:

Ritter 154 › Cabinet 3 › Drawer H

Modifiers:

Notes:

Original description: Eclogite, Lawsonite locality (Tiburon Uplands Nature Preserve) 2 hand samples.

Ancillary Data Notes:

Series:

Location:

California
Tiburon Peninsula, Marin county
Latitude: 37.886°
Longitude: -122.453°

Photos:

Notes:

Micrographs:

Notes:

Poikiolitic garnet in cpx groundmass

Mag:

2.5

Polarized:

plane

Notes:

Poikiolitic garnet in cpx groundmass

Mag:

2.5

Polarized:

plane

Notes:

Poikiolitic garnet in cpx groundmass

Mag:

2.5

Polarized:

crossed

Notes:

Slide 1

Mag:

scan

Polarized:

crossed

Notes:

Slide 1

Mag:

scan

Polarized:

plane

Notes:

Slide 2

Mag:

scan

Polarized:

crossed

Notes:

Slide 2

Mag:

scan

Polarized:

plane

Thin Sections:

GRD02NFT0: (Slide 1) Calif 18-1: Slide cracked. 1 to 2 mm very pale Brown-pink garnets, most poikilitic with overgrowths, sheathed in large chlorite, white mica, and biotite. Matrix of clinopyroxene and chlorite. No lawsonite? Unidentififed mineral: 2v ~40, B-, Bi: .02 (C. Eichler)

GRD02NFT1: (Slide 2) Calif 18-2: 1 to 2 mm very plae Brown-pink garnets, most poikilitic with overgrowths, sheathed in large chlorite, white mica, and biotite. Matrix of clinopyroxene and chlorite. No lawsonite? Unidentififed mineral: 2v ~40, B-, Bi: .02 (C. Eichler)

GRD02NFT2: Cal 18 (3):

GRD02NFT3: Cal 18 (4):

GRD02NFT4

Documents:

N/A

References:

N/A

Geological Teaching Collection

Geological Teaching Collection

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