| GRD02NOS0 |
Gabbro
|
Small sample of coarse-grained gabbro. Fair amount of metallic oxides. |
California |
0 |
Camp Elliott |
| GRD02NPS0 |
Gabbro
|
Two small samples of coarse-grained gabbro. One sample could be made into a billet. |
California |
0 |
Camp Elliott |
| GRD02NQS0 |
Anorthosite
|
Anorthosite. 95% orthoclase. Trace oxides. |
California |
0 |
Ritter 154, 20 D |
| GRD02NRS0 |
Gabbro
|
Small sample of medium grained gabbro. 50% orthoclase - 50% amphibole. |
California |
0 |
Camp Elliott |
| GRD02NSS0 |
Gabbro
|
Small sample of coarse grained gabbro. 50% orthoclase - 50% amphibole. |
California |
0 |
Ritter 154, 16 D |
| GRD02NWS0 |
Gabbro
|
Plagioclase-rich gabbro with Fe-stained crust on sample. Original label: Gabbro. Plagioclase (An55), Hypersthene (many with pyroxene overgrowths), opaques form a lattice-like pattern. A few apatite crystals. Numerous complex twins amo(?)-orthopyroxene-clinopyroxene-olivine-hornblende-spinel. |
California |
4 |
Ritter 154, 3 E |
| GRD02O6S0 |
Granodiorite
|
Medium-grained granodiorite. Orthoclase-quartz-amphibole-biotite |
California |
2 |
Ritter 154, 15 N |
| GRD02O9S0 |
Diorite
|
Original description: Hornblende diorite. 3/4 thin sections |
California |
4 |
Ritter 154, 3 E |
| GRD02OES0 |
Diorite
|
Plagioclase-biotite-quartz-oxide diorite. Missing TS box |
California |
4 |
Ritter 154, 15 P |
| GRD02OFS0 |
Granodiorite
|
Coarse-grained Granodiorite containing Plagioclase, K-spar, Quartz, Hornblende, Biotite, trace Sphene and other Opaques. Original Description (Eichler?): El Capitan Granite. Pale, coarse-grained granite. |
California |
4 |
Ritter 154, 3 F |
| GRD02OGS0 |
Granodiorite
|
Medium grain light colored granite with Biotite (2-3 mm), Plagioclase (1-10 mm), Quartz (1-3 mm), K-spar (1-10 mm). Color Index: 5. Original Description: Two samples (one is a cut slab) of light colored, coarse-grained granite. |
California |
0 |
Ritter 154, 3 E |
| GRD02OGS1 |
Granodiorite
|
Medium grain light colored granite with Biotite (2-3 mm), Plagioclase (1-10 mm), Quartz (1-3 mm), K-spar (1-10 mm). Color Index: 5. Original Description: Two samples (one is a cut slab) of light colored, coarse-grained granite. Thin sections with S0 sample. |
California |
0 |
Ritter 154, 15 I |
| GRD02OHS0 |
Diorite
|
One cut slab of fine-grained diorite |
California |
4 |
Ritter 154, 15 P |
| GRD02OKS0 |
Gabbro
|
Large sample of hornblende gabbro. Original label: From blasted outcrop in road. |
California |
2 |
Ritter 154, 16 D |
| GRD02OLS0 |
Gabbro
|
Two samples of anorthositic gabbro. Exsolution of pyroxenes in thin section. |
California |
3 |
Ritter 154, 16 F |
| GRD02OVS0 |
Granite
|
Small sample of fine to medium-grained pink granite. Original label: Granitic aplite dikes intrusive into meta-tuffs Calif 1039-1041. |
California |
1 |
Camp Elliott |
| GRD02OWS0 |
Diorite
|
Large sample of quartz-rich diorite. Quartz-hornblende-biotite. Original label: Quartz diorite. |
California |
3 |
Ritter 154, 15 P |
| GRD02OZS0 |
Syenite
|
Porphyritic syenite. Original label: K-rich porphyritic syenite? Syeno-gabbro. Parker Dam Granite. 1.40 Ga. GSA Field Trip. |
California |
0 |
Ritter 154, 15 D |
| GRD02OZS1 |
Syenite
|
Porphyritic syenite. Original label: K-rich porphyritic syenite? Syeno-gabbro. Parker Dam Granite. 1.40 Ga. GSA Field Trip. |
California |
0 |
Ritter 154, 15 D |
| GRD02P3S0 |
Monzonite
|
Two nice samples of quartz monzonite. Nice megacrysts of plagioclase. Plagioclase-quartz-hornblende. Three billets. Original label: Quartz monzonite. |
California |
2 |
Ritter 154, 15 E |
| GRD02P7S0 |
Monzonite
|
Two billets of quartz monzonite. Original label: Granodorite. Quartz Monzonite. From moraine but typical of granitic rock on Gaddard Divide. These intrude diorite and hornfels andesite on southwest towards Goddard. |
California |
2 |
Camp Elliott |
| GRD02P8S0 |
Monzonite
|
Small sample of fine-grained pink granite. Two billets. Original label: Granite or altered granodorite? From moraine but typical of granitic rock on Gaddard Divide. These intrude diorite and hornfels andesite on southwest towards Goddard. |
California |
2 |
Camp Elliott |
| GRD02PCS0 |
Gabbro
|
Coarse-grained gabbro. Billets. Original label: Ophiolite. Typical gabbro. |
California |
2 |
Ritter 154, 29 F |
| GRD02PDS0 |
Gabbro
|
Dark green fine-grained diorite (?) Billets. Original label: Ophiolite. Quartz diorite? Dike cutting Calif 1103. |
California |
2 |
Ritter 154, 29 F |
| GRD02PIS0 |
Diorite
|
Diorite. Thin section only. No hand sample. Original label: Quartz diorite. |
California |
2 |
Ritter 154 |
| GRD02PJS0 |
Granite
|
Cut slab of porphyritic granite. Megacrysts of plagioclase. |
California |
4 |
Ritter 154, 15 B |
| GRD02PKS0 |
Anorthosite
|
Two samples of anorthosite. Large plagioclase feldspar with interstital green pyroxene. Large bleb of magnetite in larger sample. Original label: San Gabriels Field Trip. |
California |
2 |
Ritter 154, 16 F |
| GRD02PLS0 |
Anorthosite
|
Large plagioclase feldspar with trace interstital green pyroxene, pyrite, and magnetite. Original label: San Gabriels Field Trip. |
California |
2 |
Ritter 154, 16 F |
| GRD02PMS0 |
Anorthosite
|
Large plagioclase feldspar with trace interstital green pyroxene, pyrite, and magnetite. Original label: San Gabriels Field Trip. |
California |
2 |
Ritter 154, 16 F |
| GRD02PNS0 |
Anorthosite
|
Large plagioclase feldspar with interstital green pyroxene. White rims around the plagioclase. Original label: San Gabriels Field Trip. |
California |
2 |
Ritter 154, 16 F |
