Tarduno, John A; Duncan, Robert A; Scholl, David W; Cottrell, Rory D; Steinberger, Bernhard; Thordarson, Thorvaldur; Kerr, Bryan C; Neal, Clive R; Frey, Frederick A; Torii, Masayuki; Carvallo, Claire (2003): (Table S1) Age determination of Emperor Seamounts basement [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.772113, Supplement to: Tarduno, JA et al. (2003): The Emperor Seamounts: Southward motion of the Hawaiian hotspot plume in earth's mantle. Science, 301(5636), 1064-1069, https://doi.org/10.1126/science.1086442
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Abstract:
The Hawaiian-Emperor hotspot track has a prominent bend, which has served as the basis for the theory that the Hawaiian hotspot, fixed in the deep mantle, traced a change in plate motion. However, paleomagnetic and radiometric age data from samples recovered by ocean drilling define an age-progressive paleolatitude history, indicating that the Emperor Seamount trend was principally formed by the rapid motion (over 40 millimeters per year) of the Hawaiian hotspot plume during Late Cretaceous to early-Tertiary times (81 to 47 million years ago). Evidence for motion of the Hawaiian plume affects models of mantle convection and plate tectonics, changing our understanding of terrestrial dynamics.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 46.282516 * Median Longitude: 168.550272 * South-bound Latitude: 34.925800 * West-bound Longitude: 164.713500 * North-bound Latitude: 53.009500 * East-bound Longitude: 172.145880
Date/Time Start: 1971-08-30T00:00:00 * Date/Time End: 2001-08-13T00:00:00
Minimum Elevation: -3014.0 m * Maximum Elevation: -1309.9 m
Event(s):
19-192 * Latitude: 53.009500 * Longitude: 164.713500 * Date/Time: 1971-08-30T00:00:00 * Elevation: -3014.0 m * Penetration: 942 m * Recovery: 151.5 m * Location: North Pacific/GUYOT * Campaign: Leg19 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 35 cores; 308 m cored; 0 m drilled; 49.3 % recovery
197-1203A * Latitude: 50.949960 * Longitude: 167.739950 * Date/Time: 2001-07-11T00:00:00 * Elevation: -2593.5 m * Penetration: 914.6 m * Recovery: 333.91 m * Location: North Pacific Ocean * Campaign: Leg197 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 68 cores; 614.6 m cored; 300 m drilled; 54.3 % recovery
197-1204B * Latitude: 51.194010 * Longitude: 167.773700 * Date/Time: 2001-07-25T00:00:00 * Elevation: -2370.0 m * Penetration: 954.5 m * Recovery: 55.93 m * Location: North Pacific Ocean * Campaign: Leg197 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 17 cores; 143.8 m cored; 810.7 m drilled; 38.9 % recovery
Comment:
Ages calculated using biotite monitor FCT-3 (28.04 Ma) and the following decay constants:lambda-epsilon = 0.581E-10/yr, lambda-epsiolon = 4.963E-10/yr.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Sample code/label | Sample label | Tarduno, John A | DSDP/ODP/IODP sample designation | ||
| 3 | Sample comment | Sample comment | Tarduno, John A | |||
| 4 | Age, dated | Age dated | ka | Tarduno, John A | Age, 40Ar/39Ar Argon-Argon | total fusion age |
| 5 | Age, dated standard deviation | Age dated std dev | ± | Tarduno, John A | Age, 40Ar/39Ar Argon-Argon | total fusion age, 2 sigma |
| 6 | Age, dated | Age dated | ka | Tarduno, John A | Age, 40Ar/39Ar Argon-Argon | plateau age |
| 7 | Age, dated standard deviation | Age dated std dev | ± | Tarduno, John A | Age, 40Ar/39Ar Argon-Argon | plateau age |
| 8 | Age, dated | Age dated | ka | Tarduno, John A | Age, 40Ar/39Ar Argon-Argon | isochron age, 2 sigma |
| 9 | Age, dated standard deviation | Age dated std dev | ± | Tarduno, John A | Age, 40Ar/39Ar Argon-Argon | isochron age |
| 10 | Argon-40/Argon-36 | 40Ar/36Ar | Tarduno, John A | |||
| 11 | Argon-40/Argon-36, standard deviation | 40Ar/36Ar std dev | ± | Tarduno, John A | 2 sigma |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
222 data points