| GRD02NGS0 |
Non-layered Gneiss
|
Sample of biotite-orthocase-quartz-oxides augen gniess. Augen composed of orthoclase and quartz. Original description: Augen gneiss. Probably cataclasite. |
California |
0 |
Ritter 154, 24 B |
| GRD02NLS0 |
Blueschist
|
Large sample of blue schist. Sample is fine-grained. |
California |
0 |
Camp Elliott |
| GRD02NTS0 |
Non-layered Gneiss
|
Medium sized sample of a mica-poor gneiss. Large garnet crystals. Foliated amphibole. |
California |
0 |
Ritter 154, 24 B |
| GRD02NVS0 |
Blueschist
|
Garnet bearing blueschist with stringers of green minerals. Original label: From a knocker. Garnet, pumpellyite, phueugite? |
California |
4 |
Ritter 154, 3 G |
| GRD02NXS0 |
Lineation
|
Calaveras fm. Small grey sample of streched pebble conglomerate. Original label: Pebble phyllite - stretched pebbles. Fall Field trip 1981 same site as Calif 644 |
California |
0 |
Ritter 154, 24 H |
| GRD02NYS0 |
Phyllite
|
Small grey sample of a dense phyllite. Stretched pebbles/minerals? Original label: Metasediment. Schist pendant. |
California |
1 |
Ritter 154, 14 E |
| GRD02NZS0 |
Slate
|
Small sample of dark slate. Foliated. Original label: Metasediment. Schist pendant. |
California |
1 |
Ritter 154, 14 F |
| GRD02O0S0 |
Impure Marble
|
Small sample of marble. Portions of marble are white, brown, and green. Original label: Marble. Schist pendant. |
California |
0 |
Camp Elliott |
| GRD02O1S0 |
Schist
|
Small sample of well foliated, mica-poor schist. Original label: Metavolcanic? Schist pendant. |
California |
1 |
Ritter 154, 24 C |
| GRD02O2S0 |
Slate
|
Very small sample of slate. Original label: Metasediment? Metagreywacke? Schist pendant. |
California |
0 |
Camp Elliott |
| GRD02O3S0 |
Quartzite
|
Two slabs slightly bedded quartzite. |
California |
3 |
Ritter 154, 14 L |
| GRD02O4S0 |
Quartzite
|
Two very different samples. One is a dark fine-grained marble. The other is a light fine-grained marble. Original description: Marble. Schist pendant. |
California |
1 |
Camp Elliott |
| GRD02O5S0 |
Quartzite
|
Fine-grained quartzite. Original description: Siliceous schist. Schist pendant. |
California |
2 |
Camp Elliott |
| GRD02O7S0 |
Calcsilicate (Skarn)
|
Banded hornfels. The lighter layers appear to be more siliceous. |
California |
0 |
Camp Elliott |
| GRD02O8S0 |
Blueschist
|
Blueschist with thin white carbonate veins cross-cutting the foliation. Some green mineralization on surface. Portion of a cobble. |
California |
4 |
Ritter 154, 3 G |
| GRD02OAS0 |
Folds
|
Two very large pieces of folded, bedded sample of marble and quartzite. The more granular beds are marble whereas the darker, more finely-grained beds are quartzite. Original description: Marble. |
California |
2 |
Ritter 154, 24 I |
| GRD02OBS0 |
Folds
|
No hand sample. Thin section only. Original description: Blastomylonite - fault zone material showing effects of extreme cataclasis and recrystallization. Note the layering showing different extents of granulation. |
California |
1 |
Ritter 154, 29 A |
| GRD02OIS0 |
Quartzite
|
Very small sample of fine-grained gray and Fe-stained quartzite. |
California |
3 |
Ritter 154, 14 L |
| GRD02OJS0 |
Quartzite
|
Very small sample of fine-grained gray and Fe-stained quartzite. Faint laminations. |
California |
3 |
Ritter 154, 14 L |
| GRD02OMS0 |
Serpentinite
|
Small green sample of serpentinite with carbonate veins. Pillow margin. Franciscan. |
California |
3 |
Ritter 154, 14 M |
| GRD02ONS0 |
Serpentinite
|
Small green sample of serpentinite with carbonate veins. Pillow margin. Franciscan. |
California |
3 |
Ritter 154, 14 M |
| GRD02OQS0 |
Non-layered Gneiss
|
Foliated sample with large clasts of feldspar and hornblende. Mica-poor. Original label: Meta-tuff? Stage 1. |
California |
3 |
Ritter 154, 14 A |
| GRD02ORS0 |
Schist
|
Schist with large clasts of feldspar. Feldspar-quartz-biotite. Original label: Meta-tuff? Stage 2. |
California |
3 |
Ritter 154, 14 D |
| GRD02OSS0 |
Quartzofeldspathic
|
Small sample of fine-grained gneiss. Thin, poorly developed bands in gniess. Feldspar-quartz-biotite. Original label: Meta-tuff? Stage 3. |
California |
3 |
Ritter 154, 24 A |
| GRD02OTS0 |
Calcsilicate (Skarn)
|
Very small, very fine-grained sample. Original label: Meta-tuff? - Hornfels?. |
California |
3 |
Camp Elliott |
| GRD02OUS0 |
Quartzofeldspathic
|
Two small, dark, very fine-grained samples. Original label: Meta-tuff? - Hornfels?. |
California |
3 |
Camp Elliott |
| GRD02OXS0 |
Non-layered Gneiss
|
Large sample of augen gneiss. Large augen of potassium feldspar. Potassium feldspar-quartz-biotite. Original label: S-C gneiss. |
California |
1 |
Ritter 154, 14 A |
| GRD02P0S0 |
Mylonite
|
Very small sample and billets. Very fine-grained mylonite/gneiss. Original label: Mylonitic gneiss - from shear zone?. |
California |
2 |
Ritter 154, 24 I |
| GRD02P1S0 |
Schist
|
Very fine-grained schist cobble. Blue and green phyllosilicates. Five billets. Original label: Spotted schist. |
California |
2 |
Ritter 154, 24 D |
| GRD02P2S0 |
Schist
|
Fine-grained schist. Blue and green phyllosilicates with cordierite(?). Four billets. Original label: Mica schist. |
California |
2 |
Ritter 154, 14 C |
