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High-resolution estimates of Southwest Indian Ridge plate motions, 20 Ma to present. / DeMets, C.; Merkouriev, S.; Sauter, D.

In: Geophysical Journal International, Vol. 203, No. 3, 2015, p. 1495-1527.

Research output: Contribution to journal › Article › peer-review

Harvard

DeMets, C, Merkouriev, S & Sauter, D 2015, 'High-resolution estimates of Southwest Indian Ridge plate motions, 20 Ma to present', Geophysical Journal International, vol. 203, no. 3, pp. 1495-1527. https://doi.org/10.1093/gji/ggv366, https://doi.org/doi: 10.1093/gji/ggv366

APA

DeMets, C., Merkouriev, S., & Sauter, D. (2015). High-resolution estimates of Southwest Indian Ridge plate motions, 20 Ma to present. Geophysical Journal International, 203(3), 1495-1527. https://doi.org/10.1093/gji/ggv366, https://doi.org/doi: 10.1093/gji/ggv366

Vancouver

DeMets C, Merkouriev S, Sauter D. High-resolution estimates of Southwest Indian Ridge plate motions, 20 Ma to present. Geophysical Journal International. 2015;203(3):1495-1527. https://doi.org/10.1093/gji/ggv366, https://doi.org/doi: 10.1093/gji/ggv366

Author

DeMets, C. ; Merkouriev, S. ; Sauter, D. / High-resolution estimates of Southwest Indian Ridge plate motions, 20 Ma to present. In: Geophysical Journal International. 2015 ; Vol. 203, No. 3. pp. 1495-1527.

BibTeX

@article{e450b90881544af4aa560d5e452179e6,
title = "High-resolution estimates of Southwest Indian Ridge plate motions, 20 Ma to present",
abstract = "{\textcopyright} The Authors 2015. We present the first estimates of Southwest Indian Ridge (SWIR) plate motions at high temporal resolution during the Quaternary and Neogene based on nearly 5000 crossings of 21 magnetic reversals out to C6no (19.72 Ma) and the digitized traces of 17 fracture zones and transform faults. Our reconstructions of this slow-spreading mid-ocean ridge reveal several unexpected results with notable implications for regional and global plate reconstructions since 20 Ma. Extrapolations of seafloor opening distances to zero-age seafloor based on reconstructions of reversals C1n (0.78 Ma) through C3n.4 (5.2 Ma) reveal evidence for surprisingly large outward displacement of 5 ± 1 kmwest of 32°E, where motion between the Nubia and Antarctic plates occurs, but 2 ± 1 km east of 32°E, more typical of most mid-ocean ridges. Newly estimated SWIR seafloor spreading rates are up to 15 per cent slower everywhere along the ridge than previous estimates. Reconstructions of the numerous observations for times back",
author = "C. DeMets and S. Merkouriev and D. Sauter",
year = "2015",
doi = "10.1093/gji/ggv366",
language = "English",
volume = "203",
pages = "1495--1527",
journal = "Geophysical Journal International",
issn = "0956-540X",
publisher = "Wiley-Blackwell",
number = "3",

}

RIS

TY - JOUR

T1 - High-resolution estimates of Southwest Indian Ridge plate motions, 20 Ma to present

AU - DeMets, C.

AU - Merkouriev, S.

AU - Sauter, D.

PY - 2015

Y1 - 2015

N2 - © The Authors 2015. We present the first estimates of Southwest Indian Ridge (SWIR) plate motions at high temporal resolution during the Quaternary and Neogene based on nearly 5000 crossings of 21 magnetic reversals out to C6no (19.72 Ma) and the digitized traces of 17 fracture zones and transform faults. Our reconstructions of this slow-spreading mid-ocean ridge reveal several unexpected results with notable implications for regional and global plate reconstructions since 20 Ma. Extrapolations of seafloor opening distances to zero-age seafloor based on reconstructions of reversals C1n (0.78 Ma) through C3n.4 (5.2 Ma) reveal evidence for surprisingly large outward displacement of 5 ± 1 kmwest of 32°E, where motion between the Nubia and Antarctic plates occurs, but 2 ± 1 km east of 32°E, more typical of most mid-ocean ridges. Newly estimated SWIR seafloor spreading rates are up to 15 per cent slower everywhere along the ridge than previous estimates. Reconstructions of the numerous observations for times back

AB - © The Authors 2015. We present the first estimates of Southwest Indian Ridge (SWIR) plate motions at high temporal resolution during the Quaternary and Neogene based on nearly 5000 crossings of 21 magnetic reversals out to C6no (19.72 Ma) and the digitized traces of 17 fracture zones and transform faults. Our reconstructions of this slow-spreading mid-ocean ridge reveal several unexpected results with notable implications for regional and global plate reconstructions since 20 Ma. Extrapolations of seafloor opening distances to zero-age seafloor based on reconstructions of reversals C1n (0.78 Ma) through C3n.4 (5.2 Ma) reveal evidence for surprisingly large outward displacement of 5 ± 1 kmwest of 32°E, where motion between the Nubia and Antarctic plates occurs, but 2 ± 1 km east of 32°E, more typical of most mid-ocean ridges. Newly estimated SWIR seafloor spreading rates are up to 15 per cent slower everywhere along the ridge than previous estimates. Reconstructions of the numerous observations for times back

U2 - 10.1093/gji/ggv366

DO - 10.1093/gji/ggv366

M3 - Article

VL - 203

SP - 1495

EP - 1527

JO - Geophysical Journal International

JF - Geophysical Journal International

SN - 0956-540X

IS - 3

ER -

ID: 3987526