Age and geochemistry of the Beata Ridge: Primary formation during the main phase (~89 Ma) of the Caribbean Large Igneous Province

Dürkefälden, Antje; Hoernle, Kaj; Hauff, Folkmar; Wartho, Jo‐Anne; Bogaard, Paul van den; Werner, Reinhard

doi:10.1016/j.lithos.2018.12.021

Cited by 33 publications

(22 citation statements)

References 69 publications

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“…The Caribbean Plateau formed during the Late Cretaceous as a result of two main magmatic events at ∼89 and ∼75 Ma (Dürkefälden et al, 2019a(Dürkefälden et al, , 2019b. Following the plateau formation, a volcanic arc developed at the Aves Ridge and remained active until ∼59 Ma (J. E. Wright & Wyld, 2011).…”

Section: Late Cretaceous To Paleocene: Pre-rift Evolutionmentioning

confidence: 99%

Genetic Relations Between the Aves Ridge and the Grenada Back‐Arc Basin, East Caribbean Sea

et al. 2021

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The Grenada Basin is bounded to the east by the active Lesser Antilles Arc, to the west by the north-south trending Aves Ridge, commonly described as a Cretaceous-Paleocene remnant of the "Great Arc of the Caribbean" (Burke, 1988), and to the south by the transpressional plate boundary with South America (Figure 1). This setting led previous authors to propose various models for the origin of the Grenada Basin, most of them assuming the basin to be at least partly floored by oceanic crust that was formed during the

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Section: Late Cretaceous To Paleocene: Pre-rift Evolutionmentioning

confidence: 99%

Genetic Relations Between the Aves Ridge and the Grenada Back‐Arc Basin, East Caribbean Sea

et al. 2021

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“…Emplacement of the Caribbean Large Igneous Province (CLIP) starting in the Cenomanian marked a turning point in the history of the Caribbean region. This large (4 × 10 6 km 3 ) basaltic oceanic plateau was formed from 94 to 89 Ma (Andjić et al, 2019, and references within) or 95 to 83 Ma (Dürkefälden et al, 2019) from volcanism driven by melting during the initial plume head stage of the Galapagos hotspot. The CLIP was initially located along the southern edge of the North American plate and the northwestern edge of the South American plate, westward of the oceanic island arc (Andjić et al, 2019).…”

Section: Caribbean Seawaymentioning

confidence: 99%

Paleogeographic controls on the evolution of Late Cretaceous ocean circulation

et al. 2020

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Abstract. Understanding of the role of ocean circulation on climate during the Late Cretaceous is contingent on the ability to reconstruct its modes and evolution. Geochemical proxies used to infer modes of past circulation provide conflicting interpretations for the reorganization of the ocean circulation through the Late Cretaceous. Here, we present climate model simulations of the Cenomanian (100.5–93.9 Ma) and Maastrichtian (72.1–66.1 Ma) stages of the Cretaceous with the CCSM4 earth system model. We focus on intermediate (500–1500 m) and deep (> 1500 m) ocean circulation and show that while there is continuous deep-water production in the southwestern Pacific, major circulation changes occur between the Cenomanian and Maastrichtian. Opening of the Atlantic and Southern Ocean, in particular, drives a transition from a mostly zonal circulation to enhanced meridional exchange. Using additional experiments to test the effect of deepening of major ocean gateways in the Maastrichtian, we demonstrate that the geometry of these gateways likely had a considerable impact on ocean circulation. We further compare simulated circulation results with compilations of εNd records and show that simulated changes in Late Cretaceous ocean circulation are reasonably consistent with proxy-based inferences. In our simulations, consistency with the geologic history of major ocean gateways and absence of shift in areas of deep-water formation suggest that Late Cretaceous trends in εNd values in the Atlantic and southern Indian oceans were caused by the subsidence of volcanic provinces and opening of the Atlantic and Southern oceans rather than changes in deep-water formation areas and/or reversal of deep-water fluxes. However, the complexity in interpreting Late Cretaceous εNd values underscores the need for new records as well as specific εNd modeling to better discriminate between the various plausible theories of ocean circulation change during this period.

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“…The Caribbean Plateau formed during the Late Cretaceous as a result of two main magmatic events at ~89 Ma and ~75 Ma (Dürkefälden, Hoernle, Hauff, Wartho, et al, 2019;. Following the plateau formation, a volcanic arc developed at the Aves Ridge and remained active until ~59 Ma (J. E. Wright & Wyld, 2011).…”

Section: Late Cretaceous To Paleocene: Pre-rift Evolutionmentioning

confidence: 99%

Genetic Relations Between the Aves Ridge and the Grenada Back-Arc Basin, East Caribbean Sea 

Garrocq

Lallemand

Marcaillou

et al. 2021

Preprint

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<p>The Grenada Basin separates the active Lesser Antilles Arc from the Aves Ridge, described as a Cretaceous-Paleocene remnant of the &#8220;Great Arc of the Caribbean.&#8221; Although various tectonic models have been proposed for the opening of the Grenada Basin, the data on which they rely are insufficient to reach definitive conclusions. We present a large set of deep-penetrating multichannel seismic reflection data and dredge samples acquired during the GARANTI cruise in 2017. By combining them with published data including seismic reflection data, wide-angle seismic data, well data and dredges, we refine the understanding of the basement structure, depositional history, tectonic deformation and vertical motions of the Grenada Basin and its margins as follows: (1) rifting occurred during the late Paleocene- early Eocene in a NW-SE direction and led to seafloor spreading during the middle Eocene; (2) this newly formed oceanic crust now extends across the eastern Grenada Basin between the latitude of Grenada and Martinique; (3) asymmetrical pre-Miocene depocenters support the hypothesis that the southern Grenada Basin originally extended beneath the present-day southern Lesser Antilles Arc and probably partly into the present-day forearc before the late Oligocene-Miocene rise of the Lesser Antilles Arc; and (4) the Aves Ridge has subsided along with the Grenada Basin since at least the middle Eocene, with a general subsidence slowdown or even an uplift during the late Oligocene, and a sharp acceleration on its southeastern flank during the late Miocene. Until this acceleration of subsidence, several bathymetric highs remained shallow enough to develop carbonate platforms.</p>

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Age and geochemistry of the Beata Ridge: Primary formation during the main phase (~89 Ma) of the Caribbean Large Igneous Province

Cited by 33 publications

References 69 publications

Genetic Relations Between the Aves Ridge and the Grenada Back‐Arc Basin, East Caribbean Sea

Genetic Relations Between the Aves Ridge and the Grenada Back‐Arc Basin, East Caribbean Sea

Paleogeographic controls on the evolution of Late Cretaceous ocean circulation

Genetic Relations Between the Aves Ridge and the Grenada Back-Arc Basin, East Caribbean Sea

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Age and geochemistry of the Beata Ridge: Primary formation during the main phase (~89 Ma) of the Caribbean Large Igneous Province

Cited by 33 publications

References 69 publications

Genetic Relations Between the Aves Ridge and the Grenada Back‐Arc Basin, East Caribbean Sea

Genetic Relations Between the Aves Ridge and the Grenada Back‐Arc Basin, East Caribbean Sea

Paleogeographic controls on the evolution of Late Cretaceous ocean circulation

Genetic Relations Between the Aves Ridge and the Grenada Back-Arc Basin, East Caribbean Sea&#160;

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Age and geochemistry of the Beata Ridge: Primary formation during the main phase (~89 Ma) of the Caribbean Large Igneous Province

Genetic Relations Between the Aves Ridge and the Grenada Back-Arc Basin, East Caribbean Sea