| 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 |
| GRD02OYS0 |
Pegmatite
|
Small sample of a pegmatite. Unremarkable. Very small acicular crystals of tourmaline. Sample is not cut. Original label: Pegmatitic material. |
California |
0 |
Camp Elliott |
| 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 |
| GRD02P9S0 |
Scoria
|
Scoria with green and white xenoliths. Billets. Original label: Melted rock. Monterey Formation. 1988 Fall Field Trip. |
California |
2 |
Ritter 154, 15 J |
| GRD02PAS0 |
Obsidian
|
Red obsidian with scoriaceous pockets. Original label: Melted rock. Obsidian. Monterey Formation. 1988 Fall Field Trip. |
California |
2 |
Ritter 154, 15 M |
| 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 |
| GRD02PES0 |
Basalt
|
Basalt capped by coarsely crystalline amphibole (?). Billets. Original label: Ophiolite. Mafic dike cutting Calif 1103 and 1104. |
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 |
| GRD02POS0 |
Anorthosite
|
Large plagioclase feldspar with trace interstital green pyroxene. Original label: Syenite? |
California |
2 |
Ritter 154, 16 F |
| GRD02PPS0 |
Anorthosite
|
Large plagioclase feldspar with trace interstital green pyroxene and magnetite. Original label: Syenite? |
California |
2 |
Ritter 154, 16 F |
| GRD02PQS0 |
Pyroxenite
|
Very dense ultramafic sample composed of magnetite and green pyroxene. Original label: Ultramafic-syenite? Layered ultramafic rock. |
California |
3 |
Ritter 154, 16 L |
| GRD02PRS0 |
Pyroxenite
|
Very dense ultramafic sample composed of feldspar, magnetite, and green pyroxene. Original label: Jatunite (?). |
California |
2 |
Ritter 154, 16 L |
| GRD02PSS0 |
Pyroxenite
|
Very dense ultramafic sample composed of feldspar, magnetite, and green pyroxene. Original label: Jatunite (?). |
California |
2 |
Ritter 154, 16 L |
| GRD02PVS0 |
Ignimbrite
|
Four billets of Bishop Tuff. The groundmass is pink whereas the fiamme are purple. Quartz crystals are visible. Original label: Bishop Tuff. |
California |
4 |
Ritter 154, 3 E |
| GRD02PVS1 |
Ignimbrite
|
The groundmass is pink whereas the fiamme are purple. Quartz crystals are visible. Original label: Bishop Tuff. |
California |
4 |
Ritter 154, 3 E |
| GRD02PVS2 |
Ignimbrite
|
The groundmass is pink whereas the fiamme are purple. Quartz crystals are visible. Original label: Bishop Tuff. |
California |
4 |
Ritter 154, 15 K |
| GRD02PXS0 |
Basalt
|
Vesicular basalt. Slightly stretched vesicles. Original label: Layered? gabbro. |
California |
2 |
Camp Elliott |
