Roller-bearing Tectonic Evolution of the Juan Fernandez Microplate

R. L. Larson; R. C. Searle; M. C. Kleinrock; H. Schouten; R. T. Bird; D. F. Naar; R. I. Rusby; E. E. Hooft; H. Lasthiotakis

doi:10.1038/356571a0

Roller-bearing Tectonic Evolution of the Juan Fernandez Microplate

R. L. Larson, R. C. Searle, M. C. Kleinrock, H. Schouten, R. T. Bird, D. F. Naar, R. I. Rusby, E. E. Hooft, H. Lasthiotakis

College of Marine Science

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

Abstract

A combined GLORIA sidescan and Hydrosweep multi-narrow-beam sonar survey shows striking evidence for fan-shaped spreading systems, bounding pseudofaults and compression ridges associated with 90° of clockwise rotation of the Juan Fernandez microplate in the past 4 Myr. A quantitative analysis of this evolution suggests that the microplate has rotated as a rigid 'roller bearing' for most of its history, driven at its edges by shear between the surrounding major plates. The remarkable similarity between the Juan Fernandez and Easter microplates, despite their different tectonic settings, suggests that this is a general model for microplate tectonics.

Original language	American English
Journal	Nature
Volume	356
DOIs	https://doi.org/10.1038/356571a0
State	Published - Jan 1 1992

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Life Sciences

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title = "Roller-bearing Tectonic Evolution of the Juan Fernandez Microplate",

abstract = " A combined GLORIA sidescan and Hydrosweep multi-narrow-beam sonar survey shows striking evidence for fan-shaped spreading systems, bounding pseudofaults and compression ridges associated with 90° of clockwise rotation of the Juan Fernandez microplate in the past 4 Myr. A quantitative analysis of this evolution suggests that the microplate has rotated as a rigid 'roller bearing' for most of its history, driven at its edges by shear between the surrounding major plates. The remarkable similarity between the Juan Fernandez and Easter microplates, despite their different tectonic settings, suggests that this is a general model for microplate tectonics.",

author = "Larson, {R. L.} and Searle, {R. C.} and Kleinrock, {M. C.} and H. Schouten and Bird, {R. T.} and Naar, {D. F.} and Rusby, {R. I.} and Hooft, {E. E.} and H. Lasthiotakis",

year = "1992",

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doi = "10.1038/356571a0",

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volume = "356",

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T1 - Roller-bearing Tectonic Evolution of the Juan Fernandez Microplate

AU - Larson, R. L.

AU - Searle, R. C.

AU - Kleinrock, M. C.

AU - Schouten, H.

AU - Bird, R. T.

AU - Naar, D. F.

AU - Rusby, R. I.

AU - Hooft, E. E.

AU - Lasthiotakis, H.

PY - 1992/1/1

Y1 - 1992/1/1

N2 - A combined GLORIA sidescan and Hydrosweep multi-narrow-beam sonar survey shows striking evidence for fan-shaped spreading systems, bounding pseudofaults and compression ridges associated with 90° of clockwise rotation of the Juan Fernandez microplate in the past 4 Myr. A quantitative analysis of this evolution suggests that the microplate has rotated as a rigid 'roller bearing' for most of its history, driven at its edges by shear between the surrounding major plates. The remarkable similarity between the Juan Fernandez and Easter microplates, despite their different tectonic settings, suggests that this is a general model for microplate tectonics.

AB - A combined GLORIA sidescan and Hydrosweep multi-narrow-beam sonar survey shows striking evidence for fan-shaped spreading systems, bounding pseudofaults and compression ridges associated with 90° of clockwise rotation of the Juan Fernandez microplate in the past 4 Myr. A quantitative analysis of this evolution suggests that the microplate has rotated as a rigid 'roller bearing' for most of its history, driven at its edges by shear between the surrounding major plates. The remarkable similarity between the Juan Fernandez and Easter microplates, despite their different tectonic settings, suggests that this is a general model for microplate tectonics.

UR - https://digitalcommons.usf.edu/msc_facpub/2236

UR - https://doi.org/10.1038/356571a0

U2 - 10.1038/356571a0

DO - 10.1038/356571a0

M3 - Article

VL - 356

JO - Nature

JF - Nature

ER -

Roller-bearing Tectonic Evolution of the Juan Fernandez Microplate

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