Sample Type is Igneous › Volcanic › Mafic Extrusive › Basalt
284 records | Download| IGSN | Sample Type | Notes | Location | Number Thin Sections | Storage Location |
|---|---|---|---|---|---|
| GRD02NIS0 | Basalt | Small weathered sample of basalt. Patches of more coarsely grained basalt? | California | 0 | Camp Elliott |
| GRD02NUS0 | Basalt | Amphibole phryic basalt. Original label: Basalt dike - cutting granodiorite. | California | 0 | Ritter 154, 20 E |
| 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 |
| GRD02PXS0 | Basalt | Vesicular basalt. Slightly stretched vesicles. Original label: Layered? gabbro. | California | 2 | Camp Elliott |
| GRD02PZS0 | Basalt | Small green sample of a fine-grained dike rock.Plagioclase and Olivine phenocrysts with groundmass containing Epidote(?). Original label Point Sal dike chill margin (on card). | California | 2 | Ritter 154, 29 F |
| GRD02RJS0 | Basalt | Dark aphanitic massive vessicular, Plagioclase, Olivine. | 4 | Ritter 154, 3 F | |
| GRD02RKS0 | Basalt | Massive Amygdaloidal Aphanitic rock containing secondary Calcite. | 4 | Ritter 154, 3 F | |
| GRD02RPS0 | Basalt | Pyroxene and Feldspar bearing Basalt. Vesicles remnant from approx 2-3 mm gas bubbles | Washington | 3 | Ritter 154, 3 E |
| GRD02RQS0 | Basalt | Two billets. Visible feldspars. | 2 | Ritter 154, 3 E | |
| GRD02RRS0 | Basalt | Xenolith in basalt. Two thin sections-1801-2, 1801-5. | Hawaii | 2 | Ritter 154, 3 E |
| GRD02RWS0 | Basalt | Vesicular (~2-3 cm) Pahoehoe Basalt. One broken thin section | Hawaii | 1 | Ritter 154, 3 E |
| 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 |
| 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 |
| GRD02VCS0 | Basalt | Basalt flow (Alkali?) | California | 0 | Camp Elliott |
| GRD02W6S0 | Basalt | Nov-66 | California | 0 | Camp Elliott |
| GRD02WCS0 | Basalt | Plagioclase bearing | California | 1 | Ritter 154, 29 C |
| GRD02WES0 | Basalt | Plagioclase and Olivine phenocryst bearing basalt with plag rich groundmass containing fine oxides | California | 1 | Ritter 154, 29 C |
| GRD02XAS0 | Basalt | Basalt with plagioclase phenocrysts | California | 0 | Ritter 154, 16 G |
| GRD02XGS0 | Basalt | Sonora Pass. Plag-phyric | California | 1 | Ritter 154, 29 C |
| GRD02XQS0 | Basalt | Basalt with Dunite and Basement inclusions | Antarctica | 0 | Ritter 154, 16 H |
| GRD02XRS0 | Basalt | Dunite and Pyroxene xenocryst bearing Basalt | Antarctica | 0 | Ritter 154, 16 H |
| GRD03ZES0 | Basalt | Sub-glacial vesicular basalt, neovolcanic zone | Iceland | 0 | Ritter 154, 16 H |
| GRD03ZHS0 | Basalt | Plagioclase bearing basalt | Greece | 0 | Ritter 154, 20 E |
| GRD03ZIS0 | Basalt | Cavity filling in basalt | Nevada | 0 | Ritter 154, 16 R |
| GRD0421S0 | Basalt | Robles fm. | Puerto Rico | 0 | Ritter 154, 29 L |