Cretaceous extensional and compressional tectonics in the Northwestern Andes, prior to the collision with the Caribbean oceanic plateau

2019 ◽  
Vol 66 ◽  
pp. 207-226 ◽  
Author(s):  
S. Zapata ◽  
A. Cardona ◽  
J.S. Jaramillo ◽  
A. Patiño ◽  
V. Valencia ◽  
...  
Keyword(s):  
Oceanic Plateau ◽  
The Caribbean

Is the Lower Duarte Igneous Complex (Hispaniola) a Remnant of the Caribbean Plume-Generated Oceanic Plateau?

1997 ◽  
Vol 105 (1) ◽  
pp. 111
Author(s):  
Lapierre ◽  
Dupuis ◽  
de Lépinay ◽  
Tardy ◽  
Ruíz ◽  
...  
Keyword(s):  
Igneous Complex ◽  
Oceanic Plateau ◽  
The Caribbean

Is the Lower Duarte Igneous Complex (Hispaniola) a Remnant of the Caribbean Plume-Generated Oceanic Plateau?

1997 ◽  
Vol 105 (1) ◽  
pp. 111-120 ◽  
Author(s):  
Henriette Lapierre ◽  
Vincent Dupuis ◽  
Bernard Mercier de Lépinay ◽  
Marc Tardy ◽  
Joaquín Ruíz ◽  
...  
Keyword(s):  
Igneous Complex ◽  
Oceanic Plateau ◽  
The Caribbean

Collision of the Caribbean Large Igneous Province with the Americas: Earliest evidence from the forearc of Costa Rica

2019 ◽  
Vol 131 (9-10) ◽  
pp. 1555-1580 ◽  
Author(s):  
Goran Andjić ◽  
Peter O. Baumgartner ◽  
Claudia Baumgartner-Mora
Keyword(s):  
Costa Rica ◽  
North America ◽  
Large Igneous Province ◽  
Geochemical Data ◽  
Published Data ◽  
Valuable Insight ◽  
Oceanic Plateau ◽  
The Pacific ◽  
Igneous Province ◽  
The Caribbean

AbstractThe Cretaceous period was marked by the most voluminous episodes of oceanic plateau volcanism in the Phanerozoic Eon. Primarily affecting the Pacific, mantle plumes generated oceanic plateaus during three main phases (ca. 145–140 Ma, ca. 122–115 Ma, and ca. 100–90 Ma). Central America is one of the very few circum-Pacific margins where remnants of these Cretaceous plateaus were accreted. The study of their onland exposures provides a highly valuable insight into the complexity and diversity of oceanic plateau histories, from their eruption to their accretion. Exposed in northern Costa Rica, the plateau remnants of the Nicoya Peninsula originated from a Jurassic oceanic crust over-thickened by Early and Late Cretaceous hotspots. These sheared-off pieces of the Farallon Plate testify to the early tectonic interaction of the Caribbean Large Igneous Province (CLIP, ca. 94–89 Ma) with North America, initiated <5 m.y. after the onset of CLIP eruption. By combining our results with previously published data, we propose an updated tectono-stratigraphic framework that divides the Nicoya Peninsula into two oceanic plateau terranes. (1) The accretion timing of the Aptian to Turonian Manzanillo Terrane is constrained by the Coniacian (ca. 89–86 Ma) base of the overlapping Loma Chumico Formation. The proximal tuffaceous forearc deposits of the Loma Chumico Formation are the oldest evidence of a volcanic arc in Costa Rica—called here the Berrugate Arc—as revealed by new biostratigraphic and geochemical data. (2) The Nicoya Complex s. str. is a composite plateau remnant containing rocks of Bajocian to earliest Campanian age. Its accretion occurred during the middle Campanian (ca. 79–76 Ma) and shut down the Berrugate Arc. In contrast to the collision of CLIP with North America, onset of the collision of CLIP with South America began much later, during the latest Campanian (ca. 75–73 Ma).

scholarly journals Supplemental Material: Did accretion of the Caribbean oceanic plateau drive rapid crustal thickening in the northern Andes?

2021 ◽  
Author(s):  
Sarah George ◽  
et al.
Keyword(s):  
Crustal Thickening ◽  
Weighted Mean ◽  
Northern Andes ◽  
Oceanic Plateau ◽  
The Caribbean

Item S1 (the U-Pb procedure, age εHf diagrams with samples binned by tectonic domain, map of geochronologic ages in Ecuador, and weighted mean U-Pb dates on igneous samples), Item S2 (coordinates of samples and data generated in this study), and Item S3 (compiled datasets [εHf , εNd, arc location]).<br>

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