Barnes, David A; Thy, Peter; Renne, Paul (1992): (Table 2) Age determination of plagioclase, biotite and hornblende from blue tuffs an related strata of ODP Leg 127 samples [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.777132, In supplement to: Barnes, DA et al. (1992): Sedimentology, phenocryst chemistry, and age - Miocene “Blue Tuff”: Sites 794 and 796, Japan Sea. In: Pisciotto, KA; Ingle, JCJr.; von Breymann, MT; Barron, J; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 127/128(1), 115-130, https://doi.org/10.2973/odp.proc.sr.127128-1.185.1992
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Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: 40.190000 * Longitude: 138.231000
Date/Time Start: 1989-06-30T12:15:00 * Date/Time End: 1989-07-03T20:30:00
Minimum Elevation: -2822.0 m * Maximum Elevation: -2822.0 m
Event(s):
127-794B * Latitude: 40.190000 * Longitude: 138.231000 * Date/Time Start: 1989-06-30T12:15:00 * Date/Time End: 1989-07-03T20:30:00 * Elevation: -2822.0 m * Penetration: 549 m * Recovery: 87.4 m * Location: Japan Sea * Campaign: Leg127 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 27 cores; 249.2 m cored; 0 m drilled; 35.1 % recovery
Comment:
Plagioclase grains from Site 794B were degassed at 0.3 W laser power output before fusion to help remove atmospheric Ar contamination. These data are corrected for mass discrimination, radioactive decay nucleogenic interferences, procedural blanks, and atmospheric contamination. 37Ar,38 Ar, and 39Ar as used to refer to the proportion of these isotopes derived by neutron activation of Ca, Cl, and K, respectively. Reported errors reflect uncertainties accrued from all corrections plus regression of isotopic data. Errors in the apparent ages do not reflect uncertainty in the age of the standard.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Barnes, David A | DSDP/ODP/IODP sample designation | ||
| 2 | Sample code/label 2 | Sample label 2 | Barnes, David A | |||
| 3 | Mineral name | Mineral | Barnes, David A | |||
| 4 | Argon-40 | 40Ar | arbitrary units | Barnes, David A | Laser fusion | [nA] |
| 5 | Argon-37/Argon-39 | 37Ar/39Ar | Barnes, David A | Laser fusion | ||
| 6 | Argon-38/Argon-39 | 38Ar/39Ar | Barnes, David A | Laser fusion | ||
| 7 | Argon-40/Argon-39 | 40Ar/39Ar | Barnes, David A | Laser fusion | ||
| 8 | Argon-40 | 40Ar | % | Barnes, David A | Laser fusion | |
| 9 | Age, dated | Age dated | ka | Barnes, David A | Age, 40Ar/39Ar Argon-Argon | |
| 10 | Age, dated standard deviation | Age dated std dev | ± | Barnes, David A | Age, 40Ar/39Ar Argon-Argon | 1 sigma |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
220 data points
Data
| 1 Sample label | 2 Sample label 2 | 3 Mineral | 4 40Ar [arbitrary units] | 5 37Ar/39Ar | 6 38Ar/39Ar | 7 40Ar/39Ar | 8 40Ar [%] | 9 Age dated [ka] | 10 Age dated std dev [±] |
|---|---|---|---|---|---|---|---|---|---|
| 127-794B-21R-5,112-115 | 4402.01 | Plagioclase | 0.5552 | 4.4718 | 0.0114 | 0.3962 | 78.9 | 16130 | 510 |
| 127-794B-21R-5,112-115 | 4402.02 | Plagioclase | 0.2657 | 1.7979 | 0.0105 | 0.3556 | 90.0 | 16460 | 820 |
| 127-794B-21R-5,112-115 | 4402.03 | Plagioclase | 0.3320 | 1.8567 | 0.0109 | 0.3600 | 76.6 | 14210 | 680 |
| 127-794B-21R-5,112-115 | 4402.04 | Plagioclase | 0.2361 | 3.3081 | 0.0113 | 0.4236 | 64.2 | 14030 | 1050 |
| 127-794B-21R-5,112-115 | 4402.05 | Plagioclase | 0.4512 | 2.9305 | 0.0118 | 0.7250 | 35.0 | 13070 | 1030 |
| 127-794B-21R-5,112-115 | 4402.06 | Plagioclase | 0.1873 | 2.3345 | 0.0113 | 0.3337 | 94.7 | 16290 | 1010 |
| 127-794B-21R-5,112-115 | 4402.07 | Plagioclase | 0.2288 | 1.5829 | 0.0110 | 0.3333 | 80.8 | 13880 | 850 |
| 127-794B-21R-5,112-115 | 4402.08 | Plagioclase | 0.3316 | 1.9234 | 0.0113 | 0.3331 | 86.8 | 14890 | 630 |
| 127-794B-21R-1,69-72 | 4404.01 | Plagioclase | 0.3117 | 2.2854 | 0.0107 | 0.4132 | 79.0 | 16820 | 790 |
| 127-794B-21R-1,69-72 | 4404.02 | Plagioclase | 0.3622 | 2.2176 | 0.0113 | 0.3309 | 89.0 | 15170 | 530 |
| 127-794B-21R-1,69-72 | 4404.03 | Plagioclase | 0.3725 | 2.0747 | 0.0114 | 0.4688 | 52.4 | 12650 | 820 |
| 127-794B-21R-1,69-72 | 4404.04 | Plagioclase | 0.2250 | 2.0086 | 0.0117 | 0.3496 | 81.2 | 14620 | 880 |
| 127-794B-21R-1,69-72 | 4404.05 | Plagioclase | 0.7950 | 1.6820 | 0.0115 | 0.3356 | 82.1 | 14190 | 270 |
| 127-794B-21R-1,69-72 | 4404.06 | Plagioclase | 0.4248 | 2.6924 | 0.0114 | 0.3507 | 86.7 | 15660 | 520 |
| 127-794B-21R-1,69-72 | 4404.07 | Plagioclase | 0.3925 | 2.9322 | 0.0114 | 0.3615 | 79.8 | 14870 | 550 |
| 127-796B-18R-4,90-93 | 4403.01 | Plagioclase | 1.0345 | 3.2813 | 0.0123 | 1.0411 | 16.2 | 8710 | 530 |
| 127-796B-18R-4,90-93 | 4403.02 | Plagioclase | 0.7412 | 2.9057 | 0.0122 | 0.5679 | 16.8 | 4940 | 570 |
| 127-796B-18R-4,90-94 | 4403.03 | Plagioclase | 0.2581 | 3.2918 | 0.0122 | 0.4721 | 29.1 | 7110 | 720 |
| 127-796B-18R-4,90-95 | 4403.04 | Plagioclase | 2.9462 | 3.1826 | 0.0125 | 1.5966 | 8.5 | 7000 | 610 |
| 127-796B-18R-4,90-96 | 4403.05 | Biotite | 1.7958 | 0.0422 | 0.0157 | 0.6863 | 14.6 | 5150 | 280 |
| 127-796B-18R-4,90-97 | 4403.06 | Biotite | 0.5540 | 0.0146 | 0.0157 | 0.1406 | 69.9 | 5070 | 80 |
| 127-796B-18R-4,90-98 | 4403.07 | Hornblende | 0.6504 | 9.3093 | 0.0427 | 0.2835 | 66.6 | 9790 | 500 |