Data Report: carbonate concentrations of Paleogene sediment at Hole 1121B, Campbell Drift

Hancock, H.J.L., and Dickens, G.R. (2002) Data Report: carbonate concentrations of Paleogene sediment at Hole 1121B, Campbell Drift. Proceedings of the Ocean Drilling Program. Scientific Results, 181. pp. 1-5.

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Abstract

Site 1121 is located southeast of New Zealand on the Campbell Drift (50°53.876´S 176°59.862´E) at a water depth of 4487.90 meters below sea level (mbsl). The site was drilled to recover an expanded sediment sequence from a Neogene contourite drift (Shipboard Scientific Party, 1999). Unexpectedly, the sequence between 32.7 and 132 meters below seafloor (mbsf) is composed of Paleogene siliceous and nannofossil-bearing ooze and chalk (Shipboard Scientific Party, 1999). This finding is intriguing because the location was probably fairly deep (>3800 mbsl) during the Paleogene (Shipboard Scientific Party, 1999), suggesting a carbonate compensation depth (CCD) significantly lower than expected from Cenozoic CCD curves (van Andel, 1975). Therefore, 39 samples of sediment were taken from Hole 1121B to construct a more detailed carbonate record of this interesting lithologic unit.

Item ID: 4407
Item Type: Article (Refereed Research - C1)
Additional Information:

Reproduced with permission from the Proceedings of the Ocean Drilling Program Scientific Results. Hancock, H.J.L., and Dickens, G.R. (2002) Data Report: Carbonate concentrations of Paleogene sediment at Hole 1121B, Campbell Drift. Proceedings of the Ocean Drilling Program Scientific Results, 181 . pp. 1-5. Doi: 10.2973/odp.proc.sr.181.204.2002

ISSN: 1096-7451
Date Deposited: 17 Sep 2009 04:29
FoR Codes: 04 EARTH SCIENCES > 0402 Geochemistry > 040299 Geochemistry not elsewhere classified @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970104 Expanding Knowledge in the Earth Sciences @ 100%
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