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East Nicoya fracture zone

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Journal Article
Journal: Geology
Published: 01 March 1994
Geology (1994) 22 (3): 263-266.
... Panama deformed belt, west through the Valle Central in Costa Rica, and then southwest along the East Nicoya Fracture Zone to intersect the Middle America Trench. Terrace correlation and basin asymmetry indicate a major change in tectonic evolution across the boundary, where three regional northeast...
Journal Article
Journal: GSA Bulletin
Published: 01 February 1992
GSA Bulletin (1992) 104 (2): 219-232.
...) a radially symmetric ridge with a slope similar to the slope of the flanks of the ridge and (2) a ridge where the subducted end was truncated by the Panama fracture zone. The best-fit model utilizes a truncated ridge that has been subducted during the past 0.5 m.y. ∼50 km beneath the overriding Caribbean...
Journal Article
Journal: GSA Bulletin
Published: 20 March 2019
GSA Bulletin (2019) 131 (9-10): 1555-1580.
... studied in detail a dozen sections of the Coniacian to upper Campanian LCF and underlying Manzanillo Terrane, in the Nicoya Peninsula (east, southeast, west) and Nicoya Gulf area ( Figs. 2 – 6 ). The facies characteristics of the studied localities are detailed below (also Figs. 3 – 7 ) and rely on field...
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Journal Article
Journal: Geosphere
Published: 16 February 2018
Geosphere (2018) 14 (2): 510-534.
... erosion and rapid subsidence linked to the southeastward Panama Fracture Zone triple-junction migration, with associated abrupt bathymetric variations and plate kinematic changes; (2) transient, kilometer-scale uplift and subsidence due to inferred subducting plate topography; and (3) progressive outer...
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Journal Article
Journal: GSA Bulletin
Published: 01 July 2009
GSA Bulletin (2009) 121 (7-8): 992-1012.
..., and the orientations and types of faults deforming Paleogene and Neogene sedimentary rocks. In the ~100-km-long Nicoya domain, coastal deposits show localized surface uplift and arcward tilting above the downdip projections of the fossil trace of the Cocos-Nazca-Panama (CO-NZ-PA) triple junction and the Fisher...
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Journal Article
Journal: AAPG Bulletin
Published: 01 July 1974
AAPG Bulletin (1974) 58 (7): 1348-1396.
... seas evidently were excluded from Nuclear Central America, which received continental deposits only. However, limited evidence suggests that there was, on the southwest, another trough, similar to that in Alta Verapaz but trending northwest-southeast from the Gulf of Tehuantepec in Mexico to Nicoya...
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Journal Article
Journal: Geology
Published: 25 September 2018
Geology (2018) 46 (11): 943-946.
... plate, while earthquakes in the upper plate arise from a high degree of fracturing due to seamount interaction, and the accreted seamount induced similar fracturing before off-scraping. 06 07 2018 31 08 2018 05 09 2018 © 2018 Geological Society of America 2018 The influence...
FIGURES
Journal Article
Journal: Geology
Published: 01 February 2009
Geology (2009) 37 (2): 163-166.
...Michael D. Tryon Abstract A log-periodic series of fluid inflow events from the outer rise off the Nicoya Peninsula, Costa Rica, was recorded on a flow meter deployed at the sediment surface. Similar periodic series have been seen in many failure processes in laboratory and field research...
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Journal Article
Journal: GSA Bulletin
Published: 01 July 2013
GSA Bulletin (2013) 125 (7-8): 1301-1318.
... Information Center [NEIC], 2011 ), the geodynamic structure beneath Panama is not well imaged, and the age of the subducting crust on either side of the Panama fracture zone is not well constrained by existing data ( Adamek et al., 1988 ). Limited magnetic anomaly data suggest the presence of a fossil east...
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Journal Article
Published: 10 December 2014
Seismological Research Letters (2014) 86 (1): 202-209.
... zones that may result in different coupling thresholds in defining kinematic barriers to great earthquake rupture. The apparent spatial correspondence of recent coseismic ruptures (Tohoku‐Oki in Japan and Nicoya along the Middle America trench) with concentrations of preseismic coupling suggests...
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Journal Article
Journal: Geosphere
Published: 26 July 2018
Geosphere (2018) 14 (5): 2009-2043.
... weathering of anomalous, near-trench felsic-volcanic rocks along a broad swath of the Outer Zone of Japan. The middle Miocene, however, was also a time of sediment transport into the Shikoku Basin by turbidity currents emanating from the East China Sea (Kyushu Fan). Interfingering of clays from those two...
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Journal Article
Published: 10 February 2016
Seismological Research Letters (2016) 87 (2A): 285-294.
... the nucleation zone of the 5 September 2012 ( M w  7.6) Nicoya Peninsula, Costa Rica earthquake , Earth Planet. Sci. Lett. 431 , 75–86 , doi: 10.1016/j.epsl.2015.09.017 . Weingarten M. Ge S. Godt J. W. Bekins B. A. Rubinstein J. L. ( 2015 ). High‐rate injection is associated...
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Journal Article
Journal: Geosphere
Published: 28 February 2018
Geosphere (2018) 14 (2): 604-625.
... to the north and from the Cocos-Nazca spreading center to the south ( Fig. 9 ). The boundary between these two types of crust is an ancient fracture zone, which intersects the Middle America Trench at about the same latitude as the southern tip of Nicoya Peninsula, Costa Rica ( Hey, 1977 ; Barckhausen et al...
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Journal Article
Journal: Geosphere
Published: 26 January 2018
Geosphere (2018) 14 (2): 419-439.
... a transect of the central Mexican subduction forearc in the Guerrero seismic gap, where the Cocos plate underthrusts the North America plate. This sector of the subduction zone is characterized by a flat-slab geometry with zones of sharp bending-unbending of the slab, irregularly distributed seismicity...
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Journal Article
Journal: AAPG Bulletin
Published: 01 May 1975
AAPG Bulletin (1975) 59 (5): 838-855.
... of the magmatism on the island. Magmatic activity was reduced markedly in western Cuba beginning with Late Cretaceous time. This could be explained as the result of the decrease in velocity of the Caribbean plate as it advanced, and at the same time the development of the transverse transcurrent fracture zones...
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Journal Article
Published: 08 June 2010
Canadian Journal of Earth Sciences (2010) 47 (5): 633-654.
... of bathymetric relief (i.e., fracture zones, fault scarps, seamounts, aseismic ridges, spreading ridges, igneous plateaus, etc.) into the subduction zone damages or destroys (removes) existing frontal prisms and elements of more landward rock bodies as well (see, e.g., Bourgois et al. 1996 ; Fruehn et al. 1999...
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Journal Article
Published: 01 January 2002
Reviews in Mineralogy and Geochemistry (2002) 50 (1): 207-270.
... concentrations using a particle accelerator, 10 Be reveals tantalizing clues to the behavior of the Earth’s geodynamo, permits “geochemical imaging” of physical and magmatic processes in subduction zones, and provides ages and uplift and incision rates essential for understanding active tectonic processes...
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Journal Article
Journal: Geosphere
Published: 20 June 2017
Geosphere (2017) 13 (4): 1026-1041.
... of anomalous seafloor, either related to excessive fracturing of the crust (e.g., fracture zones), subduction of seamounts, or other ridges and areas of high relief. These features deform the seafloor prior to entering the trench, permitting more widespread serpentinization of the mantle than would otherwise...
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Journal Article
Journal: Geosphere
Published: 24 June 2019
Geosphere (2019) 15 (4): 1038-1065.
..., with possible implications for episodic tremor and slow slip. We selected three Syros localities that represent different oceanic protoliths and deformation conditions within a subduction interface shear zone, including: (1) prograde subduction of oceanic crust to eclogite facies; (2) exhumation of oceanic...
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Series: Geological Society, London, Special Publications
Published: 01 January 2009
DOI: 10.1144/SP328.1
EISBN: 9781862395763
... complexes at the coast. We infer that Chortís was part of this continental belt, and that the dense rocks beneath the Sandino Basin of western Chortís pertain to a primary east-dipping Benioff Zone that remains active today, although it has stepped westward somewhat since the Early Cretaceous. As the gap...
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