Murphy, Brandon; Farley, Kenneth A; Zachos, James C (2010): (Table S3) Helium isotopic data and He-based age model from ODP Site 208-1266B [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.783077, In supplement to: Murphy, B et al. (2010): An extraterrestrial 3He-based timescale for the Paleocene-Eocene thermal maximum (PETM) from Walvis Ridge, IODP Site 1266. Geochimica et Cosmochimica Acta, 74(17), 5098-5108, https://doi.org/10.1016/j.gca.2010.03.039
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Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: -28.542500 * Longitude: 2.343500
Date/Time Start: 2003-04-17T18:00:00 * Date/Time End: 2003-04-18T20:50:00
Minimum DEPTH, sediment/rock: 302.020 m * Maximum DEPTH, sediment/rock: 308.540 m
Event(s):
208-1266B * Latitude: -28.542500 * Longitude: 2.343500 * Date/Time Start: 2003-04-17T18:00:00 * Date/Time End: 2003-04-18T20:50:00 * Elevation: -3796.6 m * Penetration: 321 m * Recovery: 110.43 m * Location: Walvis Ridge, Southeast Atlantic Ocean * Campaign: Leg208 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 12 cores; 108.6 m cored; 212.4 m drilled; 101.7 % recovery
Comment:
Sediment depth is given in mcd.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 2 | Sample code/label | Sample label | Murphy, Brandon | DSDP/ODP/IODP sample designation | ||
| 3 | Comment | Comment | Murphy, Brandon | |||
| 4 | Density, dry bulk | DBD | g/cm3 | Murphy, Brandon | Calculated | computed from GRAPE wet bulk density and the model of Herbert and Mayer 1991 |
| 5 | Fraction, non-carbonate | NCF | % | Murphy, Brandon | ||
| 6 | Helium-3 | 3He | 10-10 cm3/g | Murphy, Brandon | typical uncertainty on these values is < 10% (2 sigma) | |
| 7 | Helium-3/Helium-4 | 3He/4He | 10-4 | Murphy, Brandon | typical uncertainty on these values is < 10% (2 sigma) | |
| 8 | Helium-3 | 3He | 10-10 cm3/g | Murphy, Brandon | 3He extraterrestrial; error conservitivly based on sample reproducability, due to low abundence of IDPs and range of terrestrial endmember | |
| 9 | Sedimentation rate | SR | cm/ka | Murphy, Brandon | estimates from 3He extraterrestrial; assumes an extraterrestrial 3He flux of 0.48 ± 0.08 pcc/cm2/kyr and the listed dry bulk density | |
| 10 | Sedimentation rate, standard deviation | SR std dev | ± | Murphy, Brandon | estimates from 3He extraterrestrial; propagates uncertainty in 3He flux only; assumes uncertainty in 3He extraterrestrial fraction (due to terrestrial 3He/4He endmember ratio uncertainty) cancels | |
| 11 | Sedimentation rate | SR | cm/ka | Murphy, Brandon | smoothed minimum | |
| 12 | Sedimentation rate | SR | cm/ka | Murphy, Brandon | smoothed best | |
| 13 | Sedimentation rate | SR | cm/ka | Murphy, Brandon | smoothed maximum | |
| 14 | Thickness | Thick | m | Murphy, Brandon | ||
| 15 | Age, relative | Age rel | ka | Murphy, Brandon | minimum, sum of durations of each interval, with base of the clay layer (306.78 mcd) defined as zero, minimum use the LSR extrema in the previous columns | |
| 16 | Age, relative | Age rel | ka | Murphy, Brandon | sum of durations of each interval, with base of the clay layer (306.78 mcd) defined as zero | |
| 17 | Age, relative | Age rel | ka | Murphy, Brandon | maximum, sum of durations of each interval, with base of the clay layer (306.78 mcd) defined as zero, maximum use the LSR extrema in the previous columns |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
1579 data points