Data Trawler - Deployment Details

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Deployment Details

Survey: - SS200302 [details]

Deployment Type: - Sediment Sampling

Station: TD-27

When: 2003-03-24 16:23 UTC

Where: 22° 28.2' S    176° 42.3' E

Maximum Depth (m): unknown

Sediment Sampling details

Device used: Dredge - unspecified

ContentsTop (m)Base (m)
Black aphyric shiny glassy lava, dominated by elongate vesicles. Contains areas that are transitional to mid-dark grey almost woody pumice. Sub-types were distinguished by vesicularity. The dominant type has 5-10% elongate vesicles to 1 cm long.
Maybe an older flow, as these blocks have a continuous thin black MnOx coating.
A denser variant, less prone to fracture than 27-02.
A less vesicular variant, with ~5% small flow/aligned vesicles ~1 mm in diameter. Type specimen contains a single inclusion of plagioclase-olivine-clinopyroxene(?) in apparent reaction relationship with groundmass.
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