Farrimond, Paul; Brassell, Simon C (1985): Alkenon concentrations of Creatcesous sediments of DSDP Hole 76-534A (Table 1) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.757315, Supplement to: Farrimond, P; Brassell, SC (1985): Alkenones in Cretaceous black shales, Blake-Bahama Basin, western North Atlantic. Organic Geochemistry, 10(4-6), 897-903, https://doi.org/10.1016/S0146-6380(86)80027-4
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Abstract:
We here report the discovery of unusual distributions of long-chain alkenones (C37-C42) in two Cretaceous black shales from the Blake-Bahama Basin, western North Atlantic. These sediments are Cenomanian (c. 95 Ma) and mid-Albian (c. 105 Ma) in age, thus significantly extending the geological range of these compounds. The precise source of these lipids is, as yet, unknown, although they may derive from an ancient ancestor of Emiliania huxleyi.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: 28.343300 * Longitude: -75.381700
Date/Time Start: 1980-10-21T00:00:00 * Date/Time End: 1980-10-21T00:00:00
Minimum DEPTH, sediment/rock: 766 m * Maximum DEPTH, sediment/rock: 832 m
Event(s):
76-534A * Latitude: 28.343300 * Longitude: -75.381700 * Date/Time: 1980-10-21T00:00:00 * Elevation: -4971.0 m * Penetration: 1666.5 m * Recovery: 612.4 m * Location: North Atlantic/BASIN * Campaign: Leg76 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 127 cores; 1113.1 m cored; 31.5 m drilled; 55 % recovery
Comment:
# = concentration estimated by mas fragmentography due to co-evolution. <1 = trace amount detected.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Farrimond, Paul | DSDP/ODP/IODP sample designation | ||
| 2 | Lithology/composition/facies | Lithology | Farrimond, Paul | |||
| 3 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 4 | Stage | Stage | Farrimond, Paul | |||
| 5 | Carbon, organic, total | TOC | % | Farrimond, Paul | ||
| 6 | Extract | Extract | µg/g | Farrimond, Paul | sediment | |
| 7 | Alkenone, C37:2 | C37:2 | ng/g | Farrimond, Paul | sediment | |
| 8 | Alkenone, C38:2 | C38:2 | ng/g | Farrimond, Paul | sediment | |
| 9 | Alkenone, C39:2 | K39:2 | ng/g | Farrimond, Paul | sediment | |
| 10 | Alkenone, C40:2 | K40:2 | ng/g | Farrimond, Paul | sediment | |
| 11 | Alkenone, C41:2 | K41:2 | ng/g | Farrimond, Paul | sediment | |
| 12 | Alkenone, C42:2 | K42:2 | ng/g | Farrimond, Paul | sediment | |
| 13 | Alkenone per unit sediment mass | Alkenone/sed | µg/g | Farrimond, Paul | total, sediment | |
| 14 | Extract | Extract | µg/g | Farrimond, Paul | extract | |
| 15 | Alkenone, C37:2 | C37:2 | ng/g | Farrimond, Paul | extract | |
| 16 | Alkenone, C38:2 | C38:2 | ng/g | Farrimond, Paul | extract | |
| 17 | Alkenone, C39:2 | K39:2 | ng/g | Farrimond, Paul | extract | |
| 18 | Alkenone, C40:2 | K40:2 | ng/g | Farrimond, Paul | extract | |
| 19 | Alkenone, C41:2 | K41:2 | ng/g | Farrimond, Paul | extract | |
| 20 | Alkenone, C42:2 | K42:2 | ng/g | Farrimond, Paul | extract | |
| 21 | Alkenone per unit sediment mass | Alkenone/sed | µg/g | Farrimond, Paul | total, extract | |
| 22 | Alkenones | Alk | % | Farrimond, Paul | total, extract | |
| 23 | Average chain length | ACL | Farrimond, Paul | |||
| 24 | - | - | Farrimond, Paul | % ET =(Alkem-3-ones/(alken-3-ones + alken-2-ones)) |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
41 data points