Data Trawler - Deployment Details

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Deployment Details

Survey: - SS200302 [details]

Deployment Type: - Sediment Sampling

Station: TD-20

When: 2003-03-23 10:39 UTC

Where: 22° 30.8' S    176° 41.4' E

Maximum Depth (m): unknown

Sediment Sampling details

Device used: Dredge - unspecified

ContentsTop (m)Base (m)
Black andesite pillows, typically 1-5 cm thick with glass encrusted surfaces. Fresh. Glass very well-developed. Sparsely phyric, with 1-2 plagioclase phenocrysts per block. Wide range in vesicularity within most blocks- some have vesicular cores and dense rims whereas others are vice-versa.
One large pillow sector of dark grey plagioclase andesite. Vesicular. All surfaces weakly weathered or altered (black, red, orange, yellow stainings). An older flow. No glass. Interior fresh and reveals ~10% plagioclase phenocrysts.
Very similar to 20-01, but surfaces weakly orange stained and interior of blocks is less glassy. Sparsely phyric with 2-5 plagioclase and olivine phenocrysts per block. Probably an older flow.
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