1987
DOI: 10.1130/0016-7606(1987)98<702:mmoeit>2.0.co;2
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Middle Miocene oceanographic event in the eastern Gulf of Mexico: Implications for seismic stratigraphic succession and Loop Current/Gulf Stream circulation

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Cited by 91 publications
(46 citation statements)
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“…Lake Maracaibo was separated from the Orinoco only 8 m.y.a. with the uplift of the Cordillera de Merida (Mullins et al, 1987;Hoorn et al, 1995;Albert et al, 2006), subsequently becoming part of the trans-Andean group.…”
Section: Resultsmentioning
confidence: 99%
“…Lake Maracaibo was separated from the Orinoco only 8 m.y.a. with the uplift of the Cordillera de Merida (Mullins et al, 1987;Hoorn et al, 1995;Albert et al, 2006), subsequently becoming part of the trans-Andean group.…”
Section: Resultsmentioning
confidence: 99%
“…1. The principle events of this model are as follows: (1) the rise of the Eastern Cordillera (w12 Ma), which sets a minimum date for the hydrological isolation of the Magdalena and Pacific Slope of Colombia from the cis-Andean protoOrinoco basin (modern western Amazon and Orinoco); (2) the initial formation of the modern Amazon sediment fan with a tenfold increase of terrigenous deposits in the Ceara Rise (w8-9 Ma), which sets a minimum date for the separation of the western Amazon and Orinoco basins (Piper et al, 1997;Dobson et al, 1997Dobson et al, , 2001; and (3) the rise of the Merida Andes (w8 Ma), which sets a minimum date for the isolation of the modern Maracaibo and Orinoco basins (Mullins et al, 1987;Hoorn et al, 1995;.…”
Section: Introductionmentioning
confidence: 99%
“…Data from fission track analysis Shagam et al, 1984), sedimentology (Mullins et al, 1987;Piper et al, 1997), palynology (Hoorn, 1994(Hoorn, , 1996Colinvaux and De Oliveira, 2001), and paleontology Vonhof et al, 1998Vonhof et al, , 2003 suggest that until the Middle Miocene (w16 Ma), most of the area of what is the contemporary western Amazon drained northward to a delta located in the area of the modern Maracaibo Basin and that at this time, NSA was separated from southern Middle America by more than 200 km of open ocean (Galvis et al, 1979;Shagam et al, 1984;Kohn et al, 1984;Cooper et al, 1995;Hoorn et al, 1995;Dengo and Covey, 1993;Diaz de Gamero, 1996;Coates and Obando,1996;Guerrero, 1997;Villamil, 1999;Gregory-Wodzicki, 2000;Costa et al, 2001). The Middle Miocene rise of the Eastern Cordillera (w12 Ma) and the Late Miocene rise of the Merida Andes (w8 Ma) were responsible for defining the boundaries of the modern drainages of NSA, including the western Amazon (west of the Purus Arch) and the Orinoco, Maracaibo, and Magdalena basins.…”
Section: Introductionmentioning
confidence: 99%
“…By the early Cenozoic, the Florida Platform had been transformed into a topographically asymmetric feature with the eastern portion elevated and the western portion sloping into deeper water. Here, the seafloor passed below the photic zone allowing carbonate accumulation rates to be greatly reduced compared to their shallow-water counterparts (Schlager, 1981;Mullins et al, 1987Mullins et al, , 1988a. The western portion of the Florida Platform thus was transformed from a rim-type platform into a gently-sloping ramp, which terminated at the top of the eroding marginal escarpment.…”
Section: Carbonate Platform Developmentmentioning
confidence: 99%
“…The west Florida shelf-slope system has been used extensively as a modern analog for non-rimmed, carbonate platforms, deep shelves, or ramps (Ahr, 1973;Ginsburg and James, 1974;Read, 1982;Hine and Mullins, 1983;Mullins et al, 1987;1988a,b;Feary and James, 1998). Perhaps, Read's (1982) distally inclined ramp model is the best overall descriptor of the west Florida shelf/slope system.…”
Section: Carbonate Platform Developmentmentioning
confidence: 99%