| GRD02BRS0 |
Non-layered Gneiss
|
Quartz-muscovite-biotite gniess. Poorly developed lineations of biotite. |
Alpine |
2 |
Ritter 154, 24 A |
| GRD02BZS0 |
Layered Gneiss
|
Phlogopite-biotite (?)-quartz gneiss. Thin bands of phyllosilicates and quartz. |
|
0 |
Ritter 154, 24 A |
| GRD02EJS0 |
Migmatitic Gneiss
|
Original description: Migmatite granitic dike mixed with pelitic garnet-biotite schist. T35 R43. |
California |
0 |
Ritter 154, 24 B |
| GRD02EKS0 |
Non-layered Gneiss
|
Feldspar-quartz-biotite-amphibole (?) gneiss. Poorly developed banding; thin wisps of biotite. |
|
0 |
Ritter 154, 24 A |
| GRD02ELS0 |
Non-layered Gneiss
|
Quartz-biotite-garnet gneiss. Poorly developed banding; thin wisps of biotite. |
|
0 |
Ritter 154, 24 A |
| GRD02EXS0 |
Non-layered Gneiss
|
Potassium feldspar-amphibole-biotite (?) gneiss. Poorly developed banding. See also M-157. |
|
0 |
Ritter 154, 24 B |
| GRD02EYS0 |
Non-layered Gneiss
|
Potassium feldspar-amphibole-biotite (?) gneiss. Poorly developed banding. See also M-158. |
|
0 |
Camp Elliott |
| GRD02F3S0 |
Non-layered Gneiss
|
Plagioclase-quartz-biotite-magnetite (trace) gneiss. Original description: Deformed granite. |
|
1 |
Ritter 154, 14 A |
| GRD02JBS0 |
Non-layered Gneiss
|
gneiss (leucocratic granulite : pinkish white quartzofeldspathic gneiss; Q, perthite (Kspar) with minor accessory apatite, zircon, OPX, CPX, biotite, hornblende, oxides. Feldspars are altered to white mica and epidote resulting in the distinctive pink appearance. Originally granulite metamorphism subjected to later hydrothermal alteration) |
Virginia |
0 |
Ritter 154, 24 A |
| GRD02JBS1 |
Non-layered Gneiss
|
gneiss (leucocratic granulite : pinkish white quartzofeldspathic gneiss; Q, perthite (Kspar) with minor accessory apatite, zircon, OPX, CPX, biotite, hornblende, oxides. Feldspars are altered to white mica and epidote resulting in the distinctive pink appearance. Originally granulite metamorphism subjected to later hydrothermal alteration) |
Virginia |
0 |
Camp Elliott |
| GRD02N4S0 |
Layered Gneiss
|
Mylonitic gneiss with delta clasts. Lineations on bottom of the sample. Original description: Flaser gneiss interlayered with metasediments. |
California |
3 |
Ritter 154, 3 G |
| 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 |
| GRD02NTS0 |
Non-layered Gneiss
|
Medium sized sample of a mica-poor gneiss. Large garnet crystals. Foliated amphibole. |
California |
0 |
Ritter 154, 24 B |
| 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 |
| 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 |
| GRD02P4S0 |
Non-layered Gneiss
|
Small sample of dark colored augen gneiss with plagioclase porphyroblasts. Billets. Original label: Calif 1085-1086 are concordant with this forming a screen of metamorphic rocks SE of Muir Pass. |
California |
2 |
Ritter 154, 14 A |
| GRD02RDS0 |
Layered Gneiss
|
Banded Gneiss, Amphibolite Facies Quartzo-Feldspathic Protolith |
|
5 |
Ritter 154, 3 H |
| GRD02RIS0 |
Layered Gneiss
|
Feldspar-Quartz-Biotite Large feldspars approximately 1-2cm. |
|
9 |
Ritter 154, 3 G |
| GRD02T7S0 |
Augen Gneiss
|
Meta-gneiss containing large K-spars(2-3 cm) intermingled with quartz and biotite. Moderately developed foliation |
Brazil |
0 |
Ritter 154, 14 B |
| GRD02U2S0 |
Layered Gneiss
|
Probably amphibolite facies. Contact zone in lwr-mid Jurassic Sailor Creek/Tuttle Lake |
California |
1 |
Ritter 154, 24 B |
| GRD02UES0 |
Non-layered Gneiss
|
Pinto Gneiss, mica-diorite gneiss. 11/28/96. Intriguing thin section |
California |
1 |
Ritter 154, 14 A |
| GRD02UFS0 |
Layered Gneiss
|
Para-gneiss - greywacke protolith(?). Inspiration Point is Pinto Gneiss Migmatite, this may overly it. |
California |
1 |
Ritter 154, 14 A |
| GRD02V6S0 |
Layered Gneiss
|
QF schist-gneiss |
California |
0 |
Camp Elliott |
| GRD02V8S0 |
Layered Gneiss
|
Calc-silicate gneiss. |
California |
0 |
Camp Elliott |
| GRD02VBS0 |
Non-layered Gneiss
|
Flaser gneiss. Interlayered with marble and amphibolite gneiss |
California |
1 |
Camp Elliott |
| GRD02VBS1 |
Layered Gneiss
|
Flaser Gneiss. Interlayered with marble and amphibolite gneiss. |
California |
0 |
Camp Elliott |
| GRD02VFS0 |
Augen Gneiss
|
Epidote segregation in amphibolite gneiss. |
California |
0 |
Ritter 154, 24 A |
| GRD02VHS0 |
Layered Gneiss
|
Qf gneiss, interlayered with metaseds. |
California |
0 |
Camp Elliott |
| GRD02VZS0 |
Non-layered Gneiss
|
Unknown origin or composition. Blue/Gray rock with minor foliation. |
California |
2 |
Camp Elliott |
| GRD02W5S0 |
Gneiss
|
Pinto gneiss. Joshua Tree National monument. Nov 66. Near contact w/ white Tank Qtz Monz |
California |
0 |
Camp Elliott |
