The Caribbean Plate Evolution: Trying to Resolve a Very Complicated Tectonic Puzzle

Giunta, Giuseppe; Orioli, Silvia

doi:10.5772/18723

Cited by 8 publications

(2 citation statements)

References 22 publications

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“…Rui et al (2022) suggested that the Proto-Caribbean plate was initiated before 137 Ma (Figure 2c). The oceanic crust was generated at multiple spreading centers during the Jurassic and Early Cretaceous, forming an oceanic domain called the Proto-Caribbean Seaway (Figures 2c and 2d) (Giunta & Orioli, 2011). This domain evolved into the Proto-Caribbean Seaway and will, thereafter, disappear in subduction under the Caribbean plate (Figures 2d and 2e).…”

Section: The Proto-caribbean Seawaymentioning

confidence: 99%

The Protracted Evolution of a Plate Boundary: Eastern Cuba Block and Old Bahamas Channel

Oliviera de Sá,

Leroy,

d’Acremont

et al. 2024

Geochem Geophys Geosyst

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The Eastern Cuban block has experienced a complex tectonic history characterized by plate interactions, resulting in a diverse array of geological features observable in the offshore sedimentary record. We investigate the tectonic evolution of offshore Eastern Cuba, specifically in the Old Bahamas Channel and its surrounding areas, by integrating multi‐channel seismic (MCS) reflection and published geological data. Our analysis employs stratigraphic frameworks and MCS data to assess deformation and key geological events in the region. We highlight the complex tectonic history of the Eastern Cuban block, marked by significant geodynamic events, such as rifting, the subduction of the oceanic Proto‐Caribbean plate, and syn‐orogenic and post‐orogenic phases. The seismic units observed in the majority of the study area reveal the early evolution of the Northern Proto‐Caribbean margin, subsequently impacted by the Cuban orogeny and the reactivation of the Cuban Transform Fault zone corresponding to a former plate boundary. We propose estimated ages for the seismic sequences, correlating them with available well data from neighboring regions. This study offers valuable insights into the tectonic history and geological evolution of offshore Eastern Cuba, contributing to a more comprehensive understanding of the region's geodynamic development.

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Section: The Proto-caribbean Seawaymentioning

confidence: 99%

The Protracted Evolution of a Plate Boundary: Eastern Cuba Block and Old Bahamas Channel

Oliviera de Sá,

Leroy,

d’Acremont

et al. 2024

Geochem Geophys Geosyst

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“…Vincent, MAR=Martinique, GUAD=Guadaloupe, PUE=Puerto Rico, JAM=Jamaica, HON=Honduras, TUR and CAI=Turks and Caicos, BAH=Bahamas, FLO=Florida). Tectonic settings are schematically indicated (white lines) (Giunta 2011). Main water currents (dark blue arrows) follow Miloslavich et al (2010).…”

Section: Fundingmentioning

confidence: 89%

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Supplemental Information 1: Supplementary Table: Sample List Including Collection Data, DNA Concentrations and Sequence Accessi

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Background Among all present demosponges, lithistids represent a polyphyletic group with exceptionally well preserved fossils dating back to the Cambrian. Knowledge of their recent diversity, particularly in the Tropical Western Atlantic Ocean (TWA) where they are common in deep waters, is scarce making any comparison between present and past major 'lithistid' faunas difficult. In addition, the lack of sufficient molecular and morphological data hamper any predictions on phylogenetic relationships or phylodiversity from this region. The Harbor Branch Oceanographic Institute (HBOI, Fort Pierce, Florida) holds the largest collection of TWA lithistid sponges worldwide, however, the majority remain to be taxonomically identified and revised. Methods/Principal Findings In this study we provide sequences of 249 lithistid demosponges using two independent molecular markers (28S rDNA (C1-D2) and cox1 mtDNA). In addition, a morphological documentation of 70 lithistid specimens is provided in the database of the Sponge Barcoding Project (SBP). This integrated dataset represents the largest and most comprehensive of the TWA lithistids to date. The phylogenetic diversity of 'lithistid' demosponges in the Bahamas and Jamaica are high in comparison to other TWA regions; Theonellidae and Corallistidae dominate the fauna, while Neopeltidae and Macandrewiidae are rare. A new tetractinellid suborder, one new genus and several new species are recognized and the Pacific 'lithistid' genera, Herengeria and Awhiowhio, are reported from the TWA for the first time. The higher-taxa relationships of desma-bearing tetractinellids are discussed and topics for revision suggested. Conclusion This first integrative approach of TWA 'lithistid' demosponges contributes to a better understanding of their phylogenetic affinities, diversity and bathymetric distribution patterns within the TWA. As in the Pacific, the TWA 'lithistid' demosponges dominate deep-water habitats. Deeper taxonomic investigations will undoubtedly contribute to a better comparison between present major 'lithistid' faunas and their fossil record in the Mesozoic. INTRODUCTION 52 Among all present demosponges, lithistids represent a palaeontologically important polyphyletic 53 group, with exceptionally well preserved fossils dating back to the Cambrian (e.g.

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Overview of the Tectonics and Geodynamics of Costa Rica

Vannucchi

Morgan

2019

Poás Volcano

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The Caribbean Plate Evolution: Trying to Resolve a Very Complicated Tectonic Puzzle

Cited by 8 publications

References 22 publications

The Protracted Evolution of a Plate Boundary: Eastern Cuba Block and Old Bahamas Channel

The Protracted Evolution of a Plate Boundary: Eastern Cuba Block and Old Bahamas Channel

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Overview of the Tectonics and Geodynamics of Costa Rica

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