| GRD03Z9S0 |
Layering
|
Large boulder sized sample of obsidian and pumaceous material, flow banded |
California |
0 |
Ritter 154, 16 I |
| GRD03ZAS0 |
Layering
|
Obsidian and pumaceous material, flow banded |
California |
0 |
Ritter 154, 16 I |
| GRD03ZCS0 |
Pyroclastic Deposits
|
Stratified pyroclastic rock with alternating dark and light layers |
California |
0 |
Ritter 154, 15 J |
| GRD03ZDS0 |
Mafic Extrusive
|
Altered volcanic rock |
Mexico |
0 |
Ritter 154, 16 G |
| GRD03ZES0 |
Basalt
|
Sub-glacial vesicular basalt, neovolcanic zone |
Iceland |
0 |
Ritter 154, 16 H |
| GRD03ZFS0 |
Pahoehoe
|
Pahoehoe |
Iceland |
0 |
Ritter 154, 16 I |
| GRD03ZGS0 |
Pyroclastic Deposits
|
Pyroclastic breccia, red matrix with lithic volcanic fragments |
Greece |
0 |
Ritter 154, 17 N |
| GRD03ZHS0 |
Basalt
|
Plagioclase bearing basalt |
Greece |
0 |
Ritter 154, 20 E |
| GRD03ZIS0 |
Basalt
|
Cavity filling in basalt |
Nevada |
0 |
Ritter 154, 16 R |
| GRD03ZKS0 |
Pegmatite
|
Zoroaster Granite. Potassium feldspar, quartz, biotite. |
Arizona |
0 |
Ritter 154, 29 H |
| GRD03ZLS0 |
Granite
|
Chuar Group of Grand Canyon Supergroup. This is a granite, granites are not a part of the supergroup. Could be from intrusive body within supergroup |
Arizona |
0 |
Ritter 154, 29 H |
| GRD0405S0 |
Granodiorite
|
Boulder Creek Granodiorite. Plagioclase rich, near Tonalite composition. Hornblende bearing with minor Epidote and Sphene. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD0406S0 |
Granodiorite
|
Boulder Creek Granodiorite. Somewhat foliated. Very low K-spar content, Tonalite composition. Hornblende bearing, with minor Epidote, Sphene, Apatite. Trace Allanite and Zircon. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD0407S0 |
Granodiorite
|
Boulder Creek Granodiorite. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD0408S0 |
Granodiorite
|
Boulder Creek Granodiorite. Porphyroblastic. Minor Allanite and Apatite with trace Zircon and Sphene. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD0409S0 |
Monzonite
|
Twin Spruce Quartz Monzonite. Trace Allanite, Apatite and Zircon. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD040AS0 |
Diorite
|
Biotite - Hornblende Quartz Diorite. Minor Apatite, Epidote, Shene. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD040BS0 |
Intermediate Intrusive
|
Pyroxene bearing Hornblendite. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD040CS0 |
Diorite
|
Dioritic inclusion. Quartz Monzodiorite. Contains light feldspar strings and knots. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD040DS0 |
Granodiorite
|
Pegmatitic Pod. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD040ES0 |
Granodiorite
|
Boulder Creek Granodiorite. Somewhat more leucocratic than normal. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD040FS0 |
Granodiorite
|
Boulder Creek Granodiorite, migmatitic, with many feldspar strings and dikelets. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD040HS0 |
Intermediate Intrusive
|
Plagioclase and Hornblende bearing mafic inclusion with trace pyroxene. Many inclusions in long pods or streamers. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD040IS0 |
Granodiorite
|
Boulder Creek granodiorite, country rock. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD040JS0 |
Monzonite
|
Silver Plume quartz monzonite. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD040LS0 |
Granodiorite
|
Boulder Creek granodiorite. This is a darker than average facies. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD040MS0 |
Granodiorite
|
Boulder Creek Granodiorite in satalitic pluton. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD040OS0 |
Granodiorite
|
Boulder Creek Granodiorite, somewhat porphyroblastic. |
California |
0 |
Ritter 154, 29 J |
| GRD040PS0 |
Monzonite
|
Dike of Silver Plume Quartz Monzonite. |
Colorado |
0 |
Ritter 154, 29 J |
| GRD040RS0 |
Monzonite
|
Twin Spruce Quartz Monzonite. |
Colorado |
0 |
Ritter 154, 29 J |
