Data Trawler - Deployment Details

Please login if you have access to particular applications.

Deployment Details

Survey: - SS200302 [details]

Deployment Type: - Sediment Sampling

Station: TD-33

When: 2008-03-25 08:23 UTC

Where: 22° 38.6' S    176° 44.7' E

Maximum Depth (m): unknown

Sediment Sampling details

Device used: Dredge - unspecified

ContentsTop (m)Base (m)
Fresh black aphyric dacite. Well developed thick glass crusts on upper and lower surfaces of pillows. Very sparse plagioclase phenocrysts (1 per 4-5 blocks). Moderately vesicular, but vesicles do not exceed 1 cm in diameter. Conchoidal fractures.
Fresh black aphyric dacite. Consists of thick (>5 cm) crumbly glass encrusting pillows. The lower surfaces of the pillows have an unusual honeycomb (in 3d) texture suggesting possible formation above a hollow lava tube (although unambiguous drips were not present). Interpreted as a separate but young lava flow.
Dark grey to black aphyric dacite. Similar to 33-01, but locally Fe-stained (orange) surfaces and large (2-3 cm) vesicle cavities. Interpreted as an older flow. Also has less glass crust.
NCMI Information and Data Centre  »  Applications  »  Data Trawler