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Central American Seaway

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Journal Article
Published: 01 October 2013
Journal of Foraminiferal Research (2013) 43 (4): 361-373.
...Akira Tsujimoto; Ritsuo Nomura; Hiroyuki Takata; Katsunori Kimoto Abstract We investigated middle Miocene–Pleistocene deep-sea benthic foraminifera from IODP Hole U1338B in the eastern equatorial Pacific (EEP). Starting at ~12 Ma, periodic constriction and closure of the Central American Seaway...
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Series: Geological Society, London, Special Publications
Published: 01 January 2010
DOI: 10.1144/SP342.15
EISBN: 9781862395909
... Abstract The changes in the sea-ice conditions and sea surface temperatures in the Subarctic Pacific caused by the closure of the Central American Seaway and their influence on the East Asian monsoon are investigated by a series of closed (CE), open (OE) and re-closed (RCE) seaway experiments...
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Journal Article
Journal: Geology
Published: 01 January 2009
Geology (2009) 37 (1): 87-90.
... of the Central American Seaway. Low carbonate MARs and high ϵ Nd values also correlate with intervals of increased Northern Component Water production and, therefore, enhanced conveyor circulation, suggesting that the conveyor may respond to changes in circulation associated with shoaling of the Central American...
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Series: The Micropalaeontological Society, Special Publications
Published: 01 January 2007
DOI: 10.1144/TMS002.19
EISBN: 9781862396203
... been linked in part to the final closure of the Tethyan Ocean. There is considerable debate about the respective influence of Central American ( Keigwin 1982 b ) and Indonesian seaways ( Cane & Molnar 2001 ) on Neogene climate change. The persistence of entirely different views of the effect...
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Journal Article
Published: 01 May 2001
Journal of Paleontology (2001) 75 (3): 706-720.
... probably indicate that constriction of the Central American seaway had commenced by Middle Miocene time. Pliocene larval transport through the seaway is demonstrated by Bursa rugosa (now eastern Pacific) in Caribbean Miocene-latest Pliocene/Early Pleistocene rocks; Crossata ventricosa (eastern Pacific...
FIGURES
Journal Article
Journal: Geology
Published: 01 June 2000
Geology (2000) 28 (6): 551-554.
... of this interchange, but the abrupt appearance of North Pacific mollusks in the North Atlantic at 3.6 Ma postdated the first opening of the Bering Strait by 1.2–1.9 m.y. This second phase of trans-Arctic migration was also coeval with shoaling of the Central American seaway between North and South America. This late...
FIGURES
Journal Article
Published: 01 May 2001
Journal of Paleontology (2001) 75 (3): 590-606.
... of the Central American Seaway 3.1 to 3.5 Ma simultaneously isolated populations of species with amphi-American distributions. In this paper, we test the potential of morphological measurements for discriminating between Recent geminate species pairs from three genera ( Arca, Arcopsis, and Barbatia...
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Journal Article
Journal: GSA Bulletin
Published: 01 May 2012
GSA Bulletin (2012) 124 (5-6): 780-799.
... that the Central American Seaway closed in late Pliocene time, when the ice age began. Sedimentation in the Canal Basin starts with upper Eocene to Oligocene, chiefly terrigenous, partly subaerial strata (Gatuncillo Formation; Woodring, 1957 ; Graham et al., 1985 ; Tripati and Zachos, 2002 ), directly...
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Journal Article
Published: 01 January 2017
Journal of Foraminiferal Research (2017) 47 (1): 9-19.
... of the Central American Seaway that connected tropical Atlantic and Pacific waters. Samples were collected from the Tuira Formation and coeval Membrillo Formation along five river sections of the Chucunaque-Tuira (C-T) river basin and a river section of the Sambu Basin to the southwest. Benthic foraminiferal...
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Journal Article
Published: 01 January 2003
Journal of the Geological Society (2003) 160 (1): 7-10.
... climate cooling and enhanced upwelling of the Humboldt current generated by closure of the Central American Seaway between 3.5 and 3 Ma, and not to the Andean rain shadow. Recent syntheses by Lamb & Hoke (1997) , Kennan (1999) and Gregory-Wodzicki (2000) allow constraints to be placed...
FIGURES
Journal Article
Journal: Geology
Published: 01 July 2017
Geology (2017) 45 (7): 643-646.
..., prior to closure of the Central American Seaway (CAS). Paleoceanographic modeling suggests that the flow of water associated with El Niño and La Niña events through the CAS allowed Caribbean corals to record the ENSO-related SST anomalies. Spectral analysis of coral oxygen isotope ratios reveals...
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Journal Article
Published: 01 November 2011
Journal of Paleontology (2011) 85 (6): 1052-1066.
.... Persicula and Prunum probably originated in the Caribbean and migrated east during the Pliocene, following closure of the Central American Seaway. The colonization of the Pliocene European Atlantic coast by gastropods of these genera was selective, only where high sea-water temperature and high productivity...
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Journal Article
Journal: PALAIOS
Published: 01 April 2013
PALAIOS (2013) 28 (4): 210-227.
... closure of the Central American Seaway. This event was a cornerstone of investigations by the Panama Paleontology Project ( Jackson et al., 1993 , 1999 ; Todd et al., 2002 ; Johnson et al., 2007 ; O'Dea et al., 2007 ; Smith and Jackson, 2009 ). A key feature in many of these studies was the precision...
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Journal Article
Journal: Paleobiology
Published: 01 September 2012
Paleobiology (2012) 38 (4): 509-524.
... patterns of ecological and taxonomic change associated with the emergence of the Isthmus of Panama and final closure of the Central American Seaway 3–4 Myr ago. Analyses of functional groups reveal profound shifts in life habits and diets in response to changing environmental conditions whereas analyses...
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Series: Geological Society Special Publications
Published: 01 January 2011
DOI: 10.1144/SP355.15
EISBN: 9781862396036
...; Leckie (2009) . The seemingly reduced SST difference between east and west equatorial Pacific in Pliocene records ( Wara et al. 2005 ), could be (partly) explained by a shift of the East Pacific cold tongue under increased greenhouse gases and an open Central American seaway. Although our Miocene...
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Journal Article
Journal: Geology
Published: 01 February 2008
Geology (2008) 36 (2): 151-154.
... of marine species diversity prior to closure of the Central American Seaway. The recognition that pre-Quaternary aragonitic corals can be suitable for U-Pb dating creates new possibilities for refining the chronologies of late Cenozoic marine sedimentary sequences. The overwhelming limitation to U-Pb...
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Journal Article
Journal: Geology
Published: 01 December 2004
Geology (2004) 32 (12): 1025-1028.
...Michael X. Kirby; Jeremy B.C. Jackson Abstract Ocean circulation changed profoundly in the late Cenozoic around tropical America as a result of constriction and final closure of the Central American seaway. In response, regional planktonic productivity is thought to have decreased in the Caribbean...
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Journal Article
Journal: Geology
Published: 01 December 2003
Geology (2003) 31 (12): 1085-1088.
...W.P. Chaisson Abstract Biostratigraphic and isotopic studies of planktic foraminifera suggest that early to middle Pliocene closure of the Central American Seaway caused vicariant speciation among previously cosmopolitan menardellid foraminifera. New morphospecies were restricted to the tropical...
FIGURES
Journal Article
Journal: Geology
Published: 01 March 2001
Geology (2001) 29 (3): 207-210.
... Atlantic and Pacific in response to the shoaling of the Central American seaway. As a consequence, the Atlantic and Pacific surface-ocean circulation regime changed, as did the freshwater balance between the major ocean basins. Simultaneous shifts in benthic carbon isotope records in the Caribbean Sea...
FIGURES
Journal Article
Journal: GSA Bulletin
Published: 01 April 1985
GSA Bulletin (1985) 96 (4): 495-503.
... event may have been linked to global cooling and/or the final closure of the Central American Seaway. Geological Society of America 1985 ...