|
|
U. S. Geological Survey Open-File Report 02-002
Geological Framework Data from Long Island Sound, 1981-1990:
A Digital Data Release
1988 MMS Summary Report
Table 3b.
| CORE | 88-1 | 88-3 | 88-4 | 88-8 |
| Depth (cm) | 165 | 250 | 540 | 333 |
|
WEIGHT PERCENT |
||||
| Light Minerals | 93.6 | 91.0 | 93.8 | 91.4 |
| Heavy
Minerals with Magnetite |
6.4 | 9.0 | 6.2 | 8.6 |
| Heavy
Minerals without Magnetite |
6.2 | 8.5 | 6.0 | 8.3 |
|
FREQUENCY PERCENT BY NUMBER |
||||
| Amphibole | 35 | 38 | 42 | 39 |
| Andalucite | T | |||
| Biotite | T | T | T | 14 |
| Chlorite | ||||
| Chloritoid | T | |||
| Epidote Group | 1 | 1 | 1 | |
| Garnet | 33 | 33 | 30 | 16 |
| Hypersthene | 1 | 1 | 3 | 3 |
| Kyanite | 3 | 1 | 3 | 1 |
| Monazite | ||||
| Muscovite | 1 | 1 | ||
| Opaques | 10 | 7 | 5 | 7 |
| Rutile | 1 | T | 1 | T |
| Sillimanite | T | T | T | 1 |
| Staurolite | 4 | 3 | 2 | 2 |
| Titanite | 1 | 1 | T | |
| Tourmaline | 2 | |||
| Zircon | 5 | 4 | 3 | 8 |
| Shell | ||||
| Altered Minerals | ||||
| Misc. | 4 | 10 | 10 | 5 |
| TOTAL | 100 | 99 | 100 | 99 |