Paleomagnetic evidence for Late Miocene counterclockwise rotation of North Coast carbonate Sequence, Puerto Rico

Reid, Jane A.; Plumley, Peter W.; Schellekens, Johannes H.

doi:10.1029/91gl00401

Cited by 50 publications

(67 citation statements)

References 11 publications

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“…Using an opening rate of 5 mm/yr estimated from GPS velocities yields a minimum age of the structure of 1.2 million years, confirming the youth of the Mona rift and postdating the 4.5 million year age for the end of PRV! counterclockwise rotation inferred from paleomagnetic data [Reid et al, 1991]. The minimum and maximum ages of the Mona rift, within the errors of the G PS data, are < 1 million and 6 million years, respectively.…”

Section: Gps-derived Velocities Are Similar For All Sites In Puertomentioning

confidence: 99%

Neotectonics of Puerto Rico and the Virgin Islands, northeastern Caribbean, from GPS geodesy

Jansma¹,

Mattioli²,

López³

et al. 2000

Tectonics

107

119

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Abstract. The boundary between the North American andCaribbean plates is characterized primarily by left-lateral motion along predominantly east-west striking faults. Seismicity and marine geophysical survey data are consistent with at least two, and possibly three, microplates in the diffuse boundary zone in the northeastern Caribbean: (1) the Gonave, (2) the Hispaniola, and (3) the Puerto Rico-northern Virgin Islands (PRVI). We discuss results fi'om GPS geodetic measurements acquired since 1994 to test the microplate hypothesis, define PRVI translation and rotation within the boundary

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Section: Gps-derived Velocities Are Similar For All Sites In Puertomentioning

confidence: 99%

Neotectonics of Puerto Rico and the Virgin Islands, northeastern Caribbean, from GPS geodesy

Jansma¹,

Mattioli²,

López³

et al. 2000

Tectonics

107

119

View full text Add to dashboard Cite

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“…Paleomagnetic results from prePliocene carbonate (Reid et al, 1991) and Cretaceous Eocene arc rocks (Fink and Harrison, 1972;Elston and Krushensky, 1983; Van Mann et al (2005a) showing the expected types of faults and difference in the amount of extension of the northern Mona Passage boundary compared to the southern boundary. Fig.…”

Section: Extension During Rotationmentioning

confidence: 99%

“…Based on the extension rate from GPS velocities discussed above (3.9 mm/yr) and assuming that motion of the blocks has been uniform since the termination of CCW rotation (Reid et al, 1991) and movement of the Bahamas platform pinning point to its present location at approximately 4 Ma, as much as 15.5 km of extension could be expected to have occurred in the Mona Passage region. Extension of 15.5 km across the approximately 85 km width of the passage, measured from southwest of Isla de Mona across the head of Mona Canyon offshore of Aguadilla, yields a stretching factor of approximately 1.22.…”

Section: Extensional Deformation In Mona Passage -Style and Amountmentioning

confidence: 99%

Extension in Mona Passage, Northeast Caribbean

Chaytor

Brink

2010

Tectonophysics

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As shown by the recent M w 7.0 Haiti earthquake, intra-arc deformation, which accompanies the subduction process, can present seismic and tsunami hazards to nearby islands. Spatially-limited diffuse tectonic deformation within the Northeast Caribbean Plate Boundary Zone likely led to the development of the submerged Mona Passage between Puerto Rico and the Dominican Republic. GPS geodetic data and a moderate to high level of seismicity indicate that extension within the region is ongoing. Newly-collected high-resolution multibeam bathymetry and multi-channel seismic reflection profiles and previouslycollected samples are used here to determine the tectonic evolution of the Mona Passage intra-arc region. The passage is floored almost completely by Oligocene-Pliocene carbonate platform strata, which have undergone submarine and subaerial erosion. Structurally, the passage is characterized by W-to NNWtrending normal faults that offset the entire thickness of the Oligo-Pliocene carbonate platform rocks. The orientation of these faults is compatible with the NE-oriented extension vector observed in GPS data. Fault geometry best fits an oblique extension model rather than previously proposed single-phase, poly-phase, bending-moment, or rotation extension models. The intersection of these generally NW-trending faults in Mona Passage with the N-S oriented faults of Mona Canyon may reflect differing responses of the brittle upper-crust, along an arc-forearc rheological boundary, to oblique subduction along the Puerto Rico trench. Several faults within the passage, if ruptured completely, are long enough to generate earthquakes with magnitudes on the order of M w 6.5-7.Published by Elsevier B.V.

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“…These boundaries act as broad bands of deformation in which transtension and transpression take place, as well as microplates and blocks tectonics (Byrne et al, 1985;Reid et al, 1991;Mann et al, 1995;Jansma et al, 2000). Oblique (Smith and Sandwell, 1997).…”

Section: The Muertos Margin In the Caribbean Plate Settingmentioning

confidence: 99%

Morphotectonics of the central Muertos thrust belt and Muertos Trough (northeastern Caribbean)

et al. 2009

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Paleomagnetic evidence for Late Miocene counterclockwise rotation of North Coast carbonate Sequence, Puerto Rico

Cited by 50 publications

References 11 publications

Neotectonics of Puerto Rico and the Virgin Islands, northeastern Caribbean, from GPS geodesy

Neotectonics of Puerto Rico and the Virgin Islands, northeastern Caribbean, from GPS geodesy

Extension in Mona Passage, Northeast Caribbean

Morphotectonics of the central Muertos thrust belt and Muertos Trough (northeastern Caribbean)

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