Data Trawler - Deployment Details

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Deployment Details

Survey: - SS200302 [details]

Deployment Type: - Sediment Sampling

Station: TD-45

When: 2003-03-28 01:38 UTC

Where: 22° 10.5' S    176° 36.7' E

Maximum Depth (m): unknown

Sediment Sampling details

Device used: Dredge - unspecified

ContentsTop (m)Base (m)
Black aphyric lava, andesite(?). Well developed glass crust on pillows up to 3 mm thick. Vesicular, with (i) 5% large and often elongate vesicles, and (ii) numerous small vesicles. Locally weak Fe-staining just below the glass crust. Fresh.
As for 45-01, but less vesicular (far fewer small vesicles) and characterised by yellow-orange Fe-staining below the glass crust.
White aphyric pumice with weak devitrification banding to dark grey shades. Weakly weathered.
Fresh black glassy lava, aphyric, andesite(?), grades to a weakly vesicular (tiny vesicles) core. Thick glass crust.
Black to dark grey obsidian-like lava. Fresh, aphyric. Long elongate vesicles (5%).
As for 45-02, but the glass crust tends to be more massive and breaks into larger plates.
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