Publication Date:
2024-01-09
Description:
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.
Keywords:
19-192; 197-1203A; 197-1204B; 197-1205A; 197-1206A; Age, 40Ar/39Ar Argon-Argon; Age, dated; Age, dated standard deviation; Argon-40/Argon-36; Argon-40/Argon-36, standard deviation; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Glomar Challenger; Joides Resolution; Leg19; Leg197; North Pacific/GUYOT; North Pacific Ocean; Ocean Drilling Program; ODP; Sample code/label; Sample comment
Type:
Dataset
Format:
text/tab-separated-values, 222 data points
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