Age determination and Argon geochemistry of Hawaiian Emperor seamounts
| Cobertura |
MEDIAN LATITUDE: 37.540512 * MEDIAN LONGITUDE: 170.400862 * SOUTH-BOUND LATITUDE: 30.300000 * WEST-BOUND LONGITUDE: 147.300000 * NORTH-BOUND LATITUDE: 49.000000 * EAST-BOUND LONGITUDE: -178.000000 * DATE/TIME START: 1977-08-01T00:00:00 * DATE/TIME END: 1977-08-16T00:00:00 |
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| Data(s) |
06/12/2006
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| Resumo |
The Hawaiian-Emperor bend has played a prominent yet controversial role in deciphering past Pacific plate motions and the tempo of plate motion change. New ages for volcanoes of the central and southern Emperor chain define large changes in volcanic migration rate with little associated change in the chain's trend, which suggests that the bend did not form by slowing of the Hawaiian hot spot. Initiation of the bend near Kimmei seamount about 50 million years ago (MA) was coincident with realignment of Pacific spreading centers and early magmatism in western Pacific arcs, consistent with formation of the bend by changed Pacific plate motion. |
| Formato |
application/zip, 3 datasets |
| Identificador |
https://doi.pangaea.de/10.1594/PANGAEA.772234 doi:10.1594/PANGAEA.772234 |
| Idioma(s) |
en |
| Publicador |
PANGAEA |
| Direitos |
CC-BY: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted |
| Fonte |
Supplement to: Sharp, Warren D; Clague, David A (2006): 50-Ma initiation of Hawaiian-Emperor bend records major change in Pacific Plate motion. Science, 313(5791), 1281-1284, doi:10.1126/science.1128489 |
| Palavras-Chave | #-; (36/40)iso; (39/40)iso; 36Ar/39Ar; 36Ar/39Ar e rel; 37Ar/39Ar; 37Ar/39Ar e rel; 39Ar; 40Ar; 40Ar/39Ar; 40Ar/39Ar e rel; 55-430A; 55-432A; 55-433A; 55-433B; 55-433C; Age, 40Ar/39Ar Argon-Argon; Age, dated; Age, dated standard deviation; Age dated; Age std dev; Area; Area/locality; Argon-36/Argon-39; Argon-36/Argon-39, error, relative; Argon-37/Argon-39; Argon-37/Argon-39, error, relative; Argon-39; Argon-40; Argon-40/Argon-39; Argon-40/Argon-39, error, relative; Comment; corr; Correction; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Error, relative; Error. corr. 36/39; Error r; Event; Glomar Challenger; in plateau steps; Label; Laser power; Latitude; LATITUDE; Leg55; Longitude; LONGITUDE; Mineral; Mineral name; MSWD refers to mean sum of the weighted deviates, a measure of scatter relative to that expected from analytical uncertainties; North Pacific/SEAMOUNT; North Pacific/SEDIMENT POND; North Pacific/TERRACE; plateau age, # = age too young at the 95% confidence interval to preserve stratigraphic order in relation to the other dated Suiko samples and is not included in the weighted mean age; radiogenic; Ratio; Sample code/label; seamount and Volcano, numbering system of (Clague and Dalrymple, 1987) is used to designate volcanoes on seamounts with multiple eruptive centers; total gas age |
| Tipo |
Dataset |
