Brassell, Simon C; Dumitrescu, Mirela; ODP Leg 198 Shipboard Scientific Pary (2004): Carbon contents of lower Cretaceous sediments from ODP Hole 198-1213B (Table 1) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.757596, Supplement to: Brassell, SC et al. (2004): Recognition of alkenones in a lower Aptian porcellanite from the west-central Pacific. Organic Geochemistry, 35(2), 181-188, https://doi.org/10.1016/j.orggeochem.2003.09.003
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Abstract:
ODP Leg 198 drilling on Shatsky Rise recovered a lower Aptian porcellanite (~120.5 Ma) deposited during oceanic anoxic event (OAE) 1a that contains C36-C39 alkadienones: C37:2 and C39:2 alkadien-2-ones and C36:2 and C38:2 alkadien-3-ones. This alkenone distribution differs from that typical of contemporary sediments and haptophyte algae, but resembles that of Cretaceous sediments from the Blake-Bahama basin. The discovery of alkenones in the early Aptian extends their sedimentary record by 15 M.y. to 120.5 M.y. and demonstrates the potential for long-term survival of these diagnostic functional lipids under favorable depositional conditions and subsequent shallow burial. It also contributes to the understanding and reconstruction of evolutionary developments in alkenone distributions and biosynthesis over geologic time.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: 31.577630 * Longitude: 157.297700
Date/Time Start: 2001-10-04T03:00:00 * Date/Time End: 2001-10-09T19:00:00
Minimum Elevation: -3882.6 m * Maximum Elevation: -3882.6 m
Event(s):
198-1213B * Latitude: 31.577630 * Longitude: 157.297700 * Date/Time Start: 2001-10-04T03:00:00 * Date/Time End: 2001-10-09T19:00:00 * Elevation: -3882.6 m * Penetration: 494.4 m * Recovery: 60.46 m * Location: North Pacific Ocean * Campaign: Leg198 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 33 cores; 304.7 m cored; 189.7 m drilled; 19.8 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Brassell, Simon C | DSDP/ODP/IODP sample designation | ||
| 2 | Lithology/composition/facies | Lithology | Brassell, Simon C | |||
| 3 | Stage | Stage | Brassell, Simon C | |||
| 4 | Carbon, inorganic, total | TIC | % | Brassell, Simon C | Element analyser CNS, Carlo Erba NA1500 | |
| 5 | Carbon, organic, total | TOC | % | Brassell, Simon C | Element analyser CNS, Carlo Erba NA1500 |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
69 data points
Data
| 1 Sample label | 2 Lithology | 3 Stage | 4 TIC [%] | 5 TOC [%] |
|---|---|---|---|---|
| 198-1213B-8R-1,47-48 | Porcellanite | early Aptian | 0.50 | 10.23 |
| 198-1213B-8R-1,63-64 | Porcellanite | early Aptian | 0.75 | 25.20 |
| 198-1213B-8R-1,96-97 | Porcellanite | early Aptian | 0.42 | 2.87 |
| 198-1213B-11R-1,61-62 | Nannofossil chalk with clay | Hauterivian | 67.89 | 0.41 |
| 198-1213B-14R-1,29-30 | Chalk | Valanginian | 82.55 | |
| 198-1213B-15R-1,9-10 | Radiolarite with chalk/clay | Valanginian | 49.06 | 2.54 |
| 198-1213B-19R-1,10-11 | Clayey nannofossil chalk | Berriasian | 91.96 | |
| 198-1213B-19R-1,110-111 | Chalk with chert nodules | Berriasian | 56.06 | |
| 198-1213B-19R-1,112-113 | Nannofossil chalk/claystone | Berriasian | 60.56 | 3.13 |
| 198-1213B-20R-1,31-32 | Clayey nannofossil chalk | Berriasian | 58.14 | 0.11 |
| 198-1213B-20R-1,67-68 | Clayey nannofossil chalk | Berriasian | 82.22 | |
| 198-1213B-21R-1,29-30 | Clayey nannofossil chalk | Berriasian | 83.72 | |
| 198-1213B-22R-1,24-25 | Nannofossil chalk | Berriasian | 96.46 | |
| 198-1213B-22R-1,116-117 | Nannofossil chalk with clay | Berriasian | 78.80 | 0.03 |
| 198-1213B-26R-1,16-17 | Nannofossil chalk with clay | Berriasian | 66.47 | 0.00 |