Table 1 Description, data and location of fifteen Kaibab Formation secondary (authigenic) silica samples extracted from the end-Permian chert rubble breccia (northern Arizona)
δ18O SMOW (‰)a | δD SMOW (‰)a | Description and location of secondary silica samples |
|---|---|---|
30.8 | − 74.5 | Drusy, vug-fill silica (Marble Canyon; KNB1) |
30.6 | − 70.0 | Drusy, vug-fill silica (Soap Creek; SC2) |
29.7 | − 87.8 | Translucent, microcystalline silica vug-fill (Badger Canyon; BC1) |
30.8 | − 77.6 | Translucent drusy, vug-fill quartz (Marble Canyon; MC22) |
29.9 | − 76.1 | White, translucent granular microcrystalline silica (Badger Canyon; KF1) |
30.6 | − 73.6 | Translucent granular microcrystalline silica (Marble Canyon; K6) |
30.99 | − 78.0 | White, translucent granular microcrystalline silica (Badger Canyon; KF2) |
31.01 | − 75.7 | Translucent, dull botryoidal silica (Sevenmile Draw; K7) |
28.52 | − 86.2 | Translucent, granular microcrystalline silica (Sevenmile Draw; K5) |
31.5 | − 77.0 | White, translucent granular microcrystalline silica (Marble Canyon; NB1) |
30.9 | − 68.9 | Translucent, granular microcrystalline silica (Soap Creek Canyon; SC3) |
30.46 | − 80.8 | Translucent, dull botryoidal silica (Sevenmile Draw; 744) |
28.9 | − 82.0 | White, translucent granular microcrystalline silica (Marble Canyon; NBK) |
27.7 | − 92.0 | White, pale blue fibrous silica (Cathedral Wash; NB3) |
27.8 | − 87.42 | White, translucent granular microcrystalline silica (Cathedral Wash; NB5) |