The geological history of northwestern South America: from Pangaea to the early collision of the Caribbean Large Igneous Province (290–75Ma)

2015 ◽  
Vol 27 (1) ◽  
pp. 95-139 ◽  
Author(s):  
Richard Spikings ◽  
Ryan Cochrane ◽  
Diego Villagomez ◽  
Roelant Van der Lelij ◽  
Cristian Vallejo ◽  
...  
Keyword(s):  
South America ◽  
Large Igneous Province ◽  
Geological History ◽  
Igneous Province ◽  
History Of ◽  
The Caribbean

scholarly journals Subduction history of the Caribbean from upper-mantle seismic imaging and plate reconstruction

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Benedikt Braszus ◽  
Saskia Goes ◽  
Rob Allen ◽  
Andreas Rietbrock ◽  
Jenny Collier ◽  
...  
Keyword(s):  
Upper Mantle ◽  
Large Igneous Province ◽  
Fracture Zones ◽  
Igneous Province ◽  
Wave Imaging ◽  
History Of ◽  
The Caribbean ◽  
Subducting Plate ◽  
Plate Reconstruction ◽  
Back Arc

AbstractThe margins of the Caribbean and associated hazards and resources have been shaped by a poorly understood history of subduction. Using new data, we improve teleseismic P-wave imaging of the eastern Caribbean upper mantle and compare identified subducted-plate fragments with trench locations predicted from plate reconstruction. This shows that material at 700–1200 km depth below South America derives from 90–115 Myr old westward subduction, initiated prior to Caribbean Large-Igneous-Province volcanism. At shallower depths, an accumulation of subducted material is attributed to Great Arc of the Caribbean subduction as it evolved over the past 70 Ma. We interpret gaps in these subducted-plate anomalies as: a plate window and tear along the subducted Proto-Caribbean ridge; tearing along subducted fracture zones, and subduction of a volatile-rich boundary between Proto-Caribbean and Atlantic domains. Phases of back-arc spreading and arc jumps correlate with changes in age, and hence buoyancy, of the subducting plate.

Alteration mineralogy of Cretaceous basalt from ODP Site 1001, Leg 165 (Caribbean Sea)

Clay Minerals ◽  
2000 ◽  
Vol 35 (4) ◽  
pp. 719-733 ◽  
Author(s):  
T. Clayton ◽  
R. B. Pearce
Keyword(s):  
Sea Water ◽  
Caribbean Sea ◽  
Large Igneous Province ◽  
Reducing Conditions ◽  
Igneous Province ◽  
High Fluid ◽  
Alteration Processes ◽  
Fe Oxyhydroxides ◽  
The Caribbean ◽  
And Diffusion

AbstractSecondary clay minerals observed in the two uppermost basalt lava flows at ODP Site 1001, in the Caribbean Sea, drilled from the large igneous province of Cretaceous age, result from low-temperature alteration processes. Alteration mainly proceeds by circulation and diffusion of sea water. Six different types of clay mineral assemblage were recognized. Initial alteration with oxygenated sea water involves Fe and K fixation, creating visible oxidation halos parallel to the sides of cracks and fissures. A saponite/ beidellite mixture, interstratified smectite-glauconite, interstratified glauconite-nontronite and Fe oxyhydroxides are obtained depending on the distance from fluid conduits. The presence of beidellite may be due to enhanced Al mobilization resulting from high fluid flux. These early minerals are cross-cut by thin veins of pure celadonite or glauconite with further vesicle infill. Late-stage alteration is typified by the formation of saponite and takes place under closed reducing conditions resulting from deposition of the sedimentary overburden.

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

Lithos ◽  
2019 ◽  
Vol 328-329 ◽  
pp. 69-87 ◽  
Author(s):  
Antje Dürkefälden ◽  
Kaj Hoernle ◽  
Folkmar Hauff ◽  
Jo-Anne Wartho ◽  
Paul van den Bogaard ◽  
...  
Keyword(s):  
Main Phase ◽  
Large Igneous Province ◽  
Igneous Province ◽  
The Caribbean

scholarly journals A new species of the catfish genus Cordylancistrus (Siluriformes, Loricariidae) from the Sierra Nevada de Santa Marta, Colombia

Zootaxa ◽  
2017 ◽  
Vol 4329 (3) ◽  
pp. 256
Author(s):  
FRANCISCO PROVENZANO R. ◽  
NADIA MILANI ◽  
CARLOS ARDILA R.
Keyword(s):  
New Species ◽  
South America ◽  
Sierra Nevada ◽  
Related Species ◽  
Caribbean Sea ◽  
Geological History ◽  
The Andes ◽  
History Of ◽  
Magdalena River ◽  
A New Species

As a part of an assessment of loricariid catfishes inhabiting the Andes of Colombia, specimens belonging to an interesting new species were identified. The new species is described herein, and it is tentatively included in the genus Cordylancistrus. The new species can be easily distinguished among its congeners by the presence of a unique diagnostic character: a fleshy keel or excrescence, black or dark brown, over the posterior tip of supraoccipital. Specimens of the new species were captured in rivers of the Sierra Nevada de Santa Marta and the Sierra de Perijá that drain to the Magdalena River Basin and Caribbean Sea. The occurrence of one species of Cordylancistrus in the Sierra Nevada de Santa Marta could have interesting biogeographic implications for hypotheses related to the geological history of northwestern corner of South America or to the dispersal or vicariance models used to explain biogeographical patterns of related species in Colombia. 

scholarly journals The links between large igneous provinces, continental break-up and environmental change: evidence reviewed from Antarctica

2013 ◽  
Vol 104 (1) ◽  
pp. 17-30 ◽  
Author(s):  
Bryan C. Storey ◽  
Alan P. M. Vaughan ◽  
Teal R. Riley
Keyword(s):  
Ocean Basin ◽  
Large Igneous Province ◽  
Climatic Effects ◽  
Large Igneous Provinces ◽  
Rifted Margins ◽  
Igneous Provinces ◽  
Igneous Province ◽  
History Of ◽  
Break Up ◽  
Sea Floor Spreading

ABSTRACTEarth history is punctuated by events during which large volumes of predominantly mafic magmas were generated and emplaced by processes that are generally accepted as being, unrelated to ‘normal’ sea-floor spreading and subduction processes. These events form large igneous provinces (LIPs) which are best preserved in the Mesozoic and Cenozoic where they occur as continental and ocean basin flood basalts, giant radiating dyke swarms, volcanic rifted margins, oceanic plateaus, submarine ridges, and seamount chains. The Mesozoic history of Antarctica is no exception in that a number of different igneous provinces were emplaced during the initial break-up and continued disintegration of Gondwana, leading to the isolation of Antarctica in a polar position. The link between the emplacement of the igneous rocks and continental break-up processes remains controversial. The environmental impact of large igneous province formation on the Earth System is equally debated. Large igneous province eruptions are coeval with, and may drive environmental and climatic effects including global warming, oceanic anoxia and/or increased oceanic fertilisation, calcification crises, mass extinction and release of gas hydrates.This review explores the links between the emplacement of large igneous provinces in Antarctica, the isolation of Antarctica from other Gondwana continents, and possibly related environmental and climatic changes during the Mesozoic and Cenozoic.

An integrative geologic, geochronologic and geochemical study of Gorgona Island, Colombia: Implications for the formation of the Caribbean Large Igneous Province

2011 ◽  
Vol 309 (3-4) ◽  
pp. 324-336 ◽  
Author(s):  
Lina Serrano ◽  
Luca Ferrari ◽  
Margarita López Martínez ◽  
Chiara Maria Petrone ◽  
Carlos Jaramillo
Keyword(s):  
Large Igneous Province ◽  
Geochemical Study ◽  
Igneous Province ◽  
The Caribbean

scholarly journals Prolonged plume volcanism in the Caribbean Large Igneous Province: New insights from Curaçao and Haiti

2013 ◽  
Vol 14 (10) ◽  
pp. 4241-4259 ◽  
Author(s):  
Matthew W. Loewen ◽  
Robert A. Duncan ◽  
Adam J. R. Kent ◽  
Kyle Krawl
Keyword(s):  
Large Igneous Province ◽  
Igneous Province ◽  
The Caribbean

3. The Geological Relations of South Georgia

1914 ◽  
Vol 1 (2) ◽  
pp. 61-64
Author(s):  
J. W. Gregory
Keyword(s):  
South America ◽  
Southern Ocean ◽  
Special Interest ◽  
South Atlantic ◽  
Geological History ◽  
The South ◽  
Northern Margin ◽  
South Georgia ◽  
The Andes ◽  
History Of

The special interest of the island of South Georgia depends on the evidence it promises as to the geological history of that part of the Southern Ocean which lies south of the South Atlantic. According to the well-known views of Professor Suess, South Georgia is on a continuation of the mountain line of the Andes, which at the southern end of South America bends eastward along the northern margin of Drake's Sea and continues 30° to the east, where it turns southward; it completes a great horseshoe-shaped course by passing through South Georgia and returning westward through the South Orkneys to Grahamland.

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