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Deployment Details
Survey: - SS200302 [details]
Deployment Type: - Sediment Sampling
Station: TD-21
When: 2003-03-23 13:10 UTC
Where: 22° 33.4' S 176° 42.6' E
Maximum Depth (m): unknown
Sediment Sampling details
Device used: Dredge - unspecified
| Contents | Top (m) | Base (m) |
|---|---|---|
| Fresh black glassy dacite, non-vesicular to weakly vesicular. Glass crusts on upper and lower surfaces of pillows. Sparse phenocrysts of olivine to 5 mm across, euhedral, 1-2 per block. | ||
| As for 21-01 (olivines separated from different block). | ||
| As for 21-01 (olivines separated from different block). | ||
| As for 21-01 (olivines separated from different block). | ||
| As for 21-01 (olivines separated from different block). | ||
| Dark grey plagioclase andesite. Sparse (5%) small plagioclase phenocrysts in a cryptocrystalline groundmass (devitrified glass). Older flow with weathered surface. Non-vesicular. | ||
| As for 21-01 (olivines separated from different block). | ||
| As for 21-01 (olivines separated from different block). | ||
| As for 21-01 (olivines separated from different block). | ||
| As for 21-01, but surface dusted with black MnOx and no glass crust- an older flow(?). | ||
| Vesicular dark grey plagioclase andesite. ~10% plagioclase phenocrysts. Rectangular blocks but not jointed. Flow aligned vesicles. Weakly weathered surface. | ||
| As for 21-01 (olivines separated from different block). |