| GRD02TFS0 |
Dacite
|
Zoned Plagioclase phenocrysts. Avalanche deposit, devastated area. Collected 9/20/99 |
California |
1 |
Ritter 154, 29 D |
| GRD02THS0 |
Intermediate Extrusive
|
Sonora Pass lavas, GPS locations 8/15/00 |
California |
1 |
Ritter 154, 29 C |
| GRD02TJS0 |
Basalt
|
Plag-phyric. On PCT west of Butt Mountain, towards trail junction with spur to road. 9/99 |
California |
1 |
Ritter 154, 29 D |
| GRD02TLS0 |
Basalt
|
Sonora Pass SON 5. Large plag and pyroxene. |
California |
1 |
Ritter 154, 29 C |
| GRD02TMS0 |
Basalt
|
Sonora Pass lavas, SON 3 |
California |
1 |
Ritter 154, 29 C |
| GRD02TQS0 |
Intermediate Extrusive
|
Avalanche deposit. Andesite/Dacite. Collected 9/20/99 |
California |
1 |
Ritter 154, 29 D |
| GRD02TRS0 |
Volcanic
|
Sep-99 |
California |
1 |
Camp Elliott |
| GRD02TSS0 |
Volcanic
|
Sep-99 |
California |
2 |
Camp Elliott |
| GRD02TTS0 |
Basalt
|
On PCT west of Butt Mountain, towards trail junction with spur to road |
California |
1 |
Ritter 154, 29 D |
| GRD02TUS0 |
Basalt
|
Sonora Pass Lava, SON 4, 8/15/00 Possibly contains plagioclase and olivine phenocrysts |
California |
1 |
Ritter 154, 29 C |
| GRD02TXS0 |
Basalt
|
Small sample of basalt, highly altered. Original Description: Pillow basalts - good pillows |
California |
1 |
Ritter 154, 16 H |
| GRD02U0S0 |
Basalt
|
Logtown formation, pillow basalts |
California |
1 |
Ritter 154, 16 G |
| GRD02U3S0 |
Andesite
|
Plag rich Andesite dike cutting Sailor Creek formation (lower-mid J) |
California |
1 |
Ritter 154, 16 A |
| GRD02U4S0 |
Felsic Intrusive
|
Fine grain intrusive. Unknown origin. Quartz - Ksp - Mica |
California |
1 |
Camp Elliott |
| GRD02U5S0 |
Diorite
|
Biotite, Plagioclase, Amphibole bearing - Diorite(?). Original Label : Mafic phase, probably equivalent to enclaves in granodiorite 8/99 |
California |
1 |
Ritter 154, 15 P |
| GRD02U6S0 |
Granodiorite
|
Granodiorite with magic enclave. There is a 10-20 meter wide zone of enclave filled granodiorite here forming band within granodiorite. See also Ca 1270. 8/99 |
California |
1 |
Ritter 154, 15 N |
| GRD02U7S0 |
Diorite
|
Quartz Diorite Avalanche deposit 9/20/99 |
California |
1 |
Ritter 154, 29 D |
| GRD02U8S0 |
Dacite
|
Rhyolite/Dacite Avalanche deposit 9/20/99 |
California |
1 |
Ritter 154, 29 D |
| GRD02UBS0 |
Intermediate Extrusive
|
Franciscan Melange. Keratophyre? Fine grain with plag rich veins |
California |
2 |
Ritter 154, 15 H |
| GRD02UCS0 |
Gabbro
|
Cuyamaca Gabbro |
California |
2 |
Ritter 154, 16 D |
| GRD02UQS0 |
Pyroclastic Deposits
|
Fresh Clinopyroxene amidst altered mineral assemblage. Tuff Breccia. Lower Jurassic |
California |
1 |
Ritter 154, 17 N |
| GRD02USS0 |
Felsic Intrusive
|
Intrusive sill into gabbro that underlies Santiago Peak breccia. |
California |
2 |
Camp Elliott |
| GRD02UVS0 |
Gabbro
|
Cuyamaca Gabbro |
California |
2 |
Ritter 154, 16 D |
| GRD02UXS0 |
Gabbro
|
Pt Sal Ophiolite, Stop 3 gabbro. |
California |
2 |
Ritter 154, 29 F |
| GRD02UYS0 |
Peridotite
|
Pt. Sal Ophiolite. Stop 4 Wehrlite |
California |
2 |
Ritter 154, 29 F |
| GRD02UZS0 |
Ultramafic Intrusive
|
Pt. Sal Ophiolite. Stop 4, wehrlite. |
California |
2 |
Ritter 154, 29 F |
| GRD02V0S0 |
Gabbro
|
Pt. Sal ophiolite. Stop 8, troctolite. |
California |
2 |
Ritter 154, 29 F |
| GRD02V5S0 |
Igneous
|
Small and unimpressive sample, no known information. |
California |
0 |
Camp Elliott |
| GRD02V9S0 |
Andesite
|
Porphyritic Andesite. See SR 78a |
California |
0 |
Camp Elliott |
| GRD02VAS0 |
Plutonic
|
Gabbro-diorite. See SR 79b |
California |
0 |
Camp Elliott |
