Kristjánsdóttir, Greta B; Moros, Matthias; Andrews, John T; Jennings, Anne E (2015): (Appendix I) Isotope samples with warnings and/or remarks for benthic and planktonic foraminifera in sediment core MD99-2269 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.847654, In supplement to: Kristjánsdóttir, GB et al. (2016): Holocene Mg/Ca, alkenones, and light stable isotope measurements on the outer North Iceland shelf (MD99-2269): A comparison of proxy data. The Holocene, 27(1), 52-62, https://doi.org/10.1177/0959683616652703
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Related to:
Kristjánsdóttir, Greta B (2005): Holocene climatic and environmental changes on the Iceland shelf: d18O, Mg/Ca, and tephrochronology of core MD99-2269. Ph.D. thesis, University of Colorado at Boulder, 423 pp.
Coverage:
Latitude: 66.641333 * Longitude: -20.863167
Date/Time Start: 1999-08-01T00:00:00 * Date/Time End: 1999-08-01T00:00:00
Minimum DEPTH, sediment/rock: 0.05 m * Maximum DEPTH, sediment/rock: 25.15 m
Event(s):
MD99-2269 (79US/Fr) * Latitude: 66.641333 * Longitude: -20.863167 * Date/Time: 1999-08-01T00:00:00 * Elevation: -365.0 m * Recovery: 25.44 m * Location: N.Iceland shelf, Reykjafjardarall * Campaign: MD114 (IMAGES V) * Basis: Marion Dufresne (1995) * Method/Device: Calypso Corer (CALYPSO)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Species | Species | Andrews, John T | |||
| 2 | Request/Laboratory code | Req/Lab code | Andrews, John T | |||
| 3 | DEPTH, sediment/rock | Depth sed | m | Andrews, John T | Geocode | |
| 4 | Comment | Comment | Andrews, John T | |||
| 5 | Comment 2 (continued) | Comm 2 | Andrews, John T | |||
| 6 | Comment 3 (continued) | Comm 3 | Andrews, John T |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
131 data points
Data
| 1 Species | 2 Req/Lab code | 3 Depth sed [m] | 4 Comment | 5 Comm 2 | 6 Comm 3 |
|---|---|---|---|---|---|
| Cibicides lobatulus | JAC0106 | 14.45 | Very probably ok | ||
| Cassidulina neoteretis | JAC0306B | 0.05 | very likely ok (small sample; special machine settings for very small samples) | ||
| Cassidulina neoteretis | JAC0306B | 0.15 | very likely ok (small sample; special machine settings for very small samples) | ||
| Cassidulina neoteretis | JAC0305B | 0.35 | caution; sample very small; not well managed by the machine; | see #1: if a small sample is processed, pressure adjustment may become established in the early phase of a reference gas cycle (which is consumed during machine operation and is renewed every 8 to 10 samples), but could be reached in the later phase. | A bad pressure adjustment may produce an isotope offset which however is not reproducible with sufficient precision. may suffer a bit (0.2...0.4 ? in d18O) from too low a sample size or from machine problems |
| Cassidulina neoteretis | JAC0306B | 0.55 | very likely ok (small sample; special machine settings for very small samples) | ||
| Cassidulina neoteretis | JAC0306B | 0.65 | very likely ok (small sample; special machine settings for very small samples) | ||
| Cassidulina neoteretis | 1.15 | machine error, sample lost | |||
| Cassidulina neoteretis | 1.45 | marginal machine error + subsequent human error = sample lost | |||
| Cassidulina neoteretis | JAC0106 | 10.60 | Machine problem; sample lost | ||
| Cassidulina neoteretis | JAC0406B | 15.60 | sample too small; evt'ly ractionated; check if COIs fit | ||
| Cassidulina neoteretis | JAC0408 | 21.50 | prob. mach. error 1: sample gas pressure was sufficiently high; yet no signal on mass 44; no misfunction could have been identified. | ||
| Islandiella norcrossi/helenae | JAC0309 | 2.65 | sample lost (1); curious coincidence - acid stopped in front of the shells - never occurred before. | ||
| Islandiella norcrossi/helenae | JAC0309 | 2.75 | sample lost (1); curious coincidence - acid stopped in front of the shells - never occurred before. | ||
| Islandiella norcrossi/helenae | JAC0408 | 4.45 | mach. error 1; sample gas pressure was sufficiently high; yet no signal on mass 44; no misfunction could have been identified. | ||
| Islandiella norcrossi/helenae | JAC0408 | 5.15 | O18 enriched, C13 possibly as well; roughly as 2:1; analytical fractionation ? | ||
| Islandiella norcrossi/helenae | JAC0408 | 5.55 | mach. error 1: sample gas pressure was sufficiently high; yet no signal on mass 44; no misfunction could have been identified. | ||
| Islandiella norcrossi/helenae | JAC0408 | 6.05 | mach. error 1: sample gas pressure was sufficiently high; yet no signal on mass 44; no misfunction could have been identified. | ||
| Islandiella norcrossi/helenae | JAC0408 | 12.10 | mach. error 2; wrong result: failure in computer-interface communication | ||
| Islandiella norcrossi/helenae | JAC0408 | 13.40 | O18 enriched, C13 possibly as well; roughly as 2:1; analytical fractionation ? | ||
| Islandiella norcrossi/helenae | JAC0408 | 17.50 | 212-250 um | ||
| Islandiella norcrossi/helenae | JAC0408 | 21.30 | O18 is within statistics; C13 shows negative C13 phenomenon = known from other sites | ||
| Islandiella norcrossi/helenae | JAC0406B | 23.60 | 3 residual shells from sample container | ||
| Islandiella norcrossi/helenae | JAC0406B | 23.60 | sample too small- maybe fractionated.; problem with shell transfer ? | ||
| Islandiella norcrossi/helenae | JAC0406B | 24.30 | no signal; reasons unknown; sample transfer problem ? | ||
| Islandiella norcrossi/helenae | JAC0406B | 25.15 | no signal; reasons unknown; sample transfer problem ? | ||
| Melonis barleeanus | JAC0306B | 0.15 | very likely ok (small sample; special machine settings for very small samples) | ||
| Melonis barleeanus | JAC0305B | 0.55 | slight instability; not COI-critical | ||
| Melonis barleeanus | JAC0306B | 0.65 | very likely ok (small sample; special machine settings for very small samples) | ||
| Melonis barleeanus | JAC0106 | 1.60 | not critical for isotopes | ||
| Melonis barleeanus | JAC0309 | 2.85 | low sample; probably ok | ||
| Melonis barleeanus | JAC0309 | 2.95 | low sample; probably ok | ||
| Melonis barleeanus | JAC0106 | 13.60 | Very probably ok | ||
| Neogloboquadrina pachyderma (sin) | JAC0306B | 0.05 | bad measm't; sample too small | ||
| Neogloboquadrina pachyderma (sin) | JAC0305B | 0.45 | caution; sample very small; yet managed by the machine; | see #1 if a small sample is processed, pressure adjustment may become established in the early phase of a reference gas cycle (which is consumed during machine operation and is renewed every 8 to 10 samples), but could be reached in the later phase. | A bad pressure adjustment may produce an isotope offset which however is not reproducible with sufficient precision. may suffer a bit (0.2...0.4 ? in d18O) from too low a sample size or from machine problems |
| Neogloboquadrina pachyderma (sin) | JAC0306B | 1.15 | very likely ok (small sample; special machine settings for very small samples) | ||
| Neogloboquadrina pachyderma (sin) | JAC0306B | 2.15 | very likely ok (small sample; special machine settings for very small samples) | ||
| Neogloboquadrina pachyderma (sin) | JAC0408 | 4.35 | prob. mach. error 1: sample gas pressure was sufficiently high; yet no signal on mass 44; no misfunction could have been identified. | ||
| Neogloboquadrina pachyderma (sin) | JAC0408 | 4.45 | mach. error 1: sample gas pressure was sufficiently high; yet no signal on mass 44; no misfunction could have been identified. | ||
| Neogloboquadrina pachyderma (sin) | JAC0408 | 4.55 | C13, O18 off by about the same amount; a (natural) contamination ? | ||
| Neogloboquadrina pachyderma (sin) | JAC0408 | 5.25 | C13, O18 both off by about the same amount; a (natural) contamination ? | ||
| Neogloboquadrina pachyderma (sin) | JAC0408 | 18.99 | C13, O18 might be depleted (natural contamination ?) or within statistics ? | ||
| Neogloboquadrina pachyderma (sin) | JAC0408 | 21.30 | O18 is within statistics; C13 shows negative C13 phenomenon = known from other sites | ||
| Neogloboquadrina pachyderma (sin) | JAC0406B | 24.70 | sample small; should be fairly ok; check if COIs fit |