Latitudinal evolution of the Reunion hotspot deduced from paleomagnetic results of Leg 115

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doi: 10.1029/GL017i008p01105
Author(s): Vandamme, Didier; Courtillot, Vincent
Author Affiliation(s): Primary:
Inst. Phys. Globe Paris, Lab. Paléomag. et Géomag., Paris, France
Volume Title: Geophysical Research Letters
Source: Geophysical Research Letters, 17(8), p.1105-1108. Publisher: American Geophysical Union, Washington, DC, United States. ISSN: 0094-8276 CODEN: GPRLAJ
Note: In English. 17 refs.; illus. incl. 1 table, sketch map
Summary: During ODP Leg 115 in the Indian Ocean, four holes penetrated the basement. Paleomagnetic measurements on basement cores yield good quality results, but their interpretation is limited by possible but often undetectable subsequent tectonic tilting, and in one case by insufficient averaging of secular variation. Two Sites (64 and 55-60 Ma) yield apparently reliable results. Results from sediments of another Site (36 Ma) studied by Schneider and Kent also appear to be reliable. The three corresponding paleolatitudes are roughly in agreement with values predicted from the synthetic apparent polar wander paths of the African and Indian plates. Together with results from the Deccan (67 Ma), they indicate smooth and rather slow (8mm/yr) northward drift of the Réunion hotspot since its inception at the Deccan. This motion is consistent with the hotspot models of Morgan and Duncan. Copyright 1990 by the American Geophysical Union.
Year of Publication: 1990
Research Program: ODP Ocean Drilling Program
Key Words: 18 Geophysics, Solid-Earth; African Plate; Aseismic ridges; Asia; Basement; Cenozoic; Chagos Archipelago; Deccan Traps; Evolution; Hot spots; India; Indian Ocean; Indian Ocean Islands; Indian Peninsula; Indian Plate; Laccadive Islands; Leg 115; Magnetic inclination; Maldive Islands; Mascarene Islands; ODP Site 706; ODP Site 707; ODP Site 713; ODP Site 715; Ocean Drilling Program; Pacific region; Paleogene; Paleolatitude; Paleomagnetism; Plate tectonics; Reunion; Tectonophysics; Tertiary
Coordinates: S130652 S130650 E0612216 E0612215
S073244 S073243 E0590101 E0590100
S041135 S041134 E0732339 E0732339
N050453 N050454 E0734953 E0734952
Record ID: 1990050241
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