The basaltic volcanism of the Dumisseau Formation in the Sierra de Bahoruco, SW Dominican Republic: A record of the mantle plume-related magmatism of the Caribbean Large Igneous Province

Viruete, Javier Escuder; Joubert, Marc; Abad, Manuel; Pérez-Valera, Fernando; Gabites, Janet

doi:10.1016/j.lithos.2016.03.013

Cited by 26 publications

(20 citation statements)

References 47 publications

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“…Determining the primeval source material of Bahoruco bauxites is beyond the scope of this article. Nevertheless, on the basis of the above described geological framework for the Bahoruco peninsula, the authors anticipate only two plausible igneous, primeval sources: the crystalline basement, that is basalts of the Campanian-lower Eocene Dumisseau Formation (Pérez-Valera-2010;Escuder-Viruete et al, 2016), and/or volcanic ash fallen on the emerged Eocene-Pliocene carbonate series. It is actually hard to conceive the magmatic crystallization of monazite in the Dumisseau basalts, and this mineral was not described by Escuder-Viruete et al (2016); nevertheless, the LREE enrichment of high-Ti transitional and alkaline basalts of the Dumisseau Formation (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…This formation, which extends westward to the Chaîne de la Serre in S Haiti, is an on-land portion of the Caribbean Large Igneous Province (CLIP) (Lidiak and Anderson, 2015, and references therein). Escuder-Viruete et al (2016) determined a mantle plume source for the basalts, which are geochemically classified as low-Ti tholeiites, high-Ti transitional basalts and high-Ti and LREE-enriched alkaline basalts.…”

Section: Geological Framework and Stratigraphy Of The Sierra De Bahorucomentioning

confidence: 99%

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Geological, geochemical and mineralogical characteristics of REE-bearing Las Mercedes bauxite deposit, Dominican Republic

Torró

Proenza

Aiglsperger

et al. 2017

Ore Geology Reviews

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Bauxite deposits, traditionally the main source of aluminum, have been recently targeted for their remarkable contents in rare earth elements (REE). With ƩREE (lanthanoids + Sc + Y) concentrations systematically higher than ~ 1400 ppm (av. = 1530 ppm), the Las Mercedes karstic bauxites in the Dominican Republic rank as one of the REE-richest deposits of its style.The bauxitic ore in the Las Mercedes deposit is mostly unlithified and has a homogeneous-massive lithostructure, with only local cross-stratification and graded bedding. The dominant arenito-roundgrained texture is composed of bauxite particles and subordinate ooids, pisoids and carbonate clasts. Mineralogically, the bauxite ore is composed mostly of gibbsite and lesser amounts of kaolinite, hematite, boehmite, anatase, goethite, chromian spinel and zircon. Identified REE-minerals include cerianite and monazite-Ce, whose composition accounts for the steady enrichment in lightrelative to medium-and heavy-REE of the studied bauxites.Considering the paleo-geomorphology of the study area, we propose that bauxites in the Las Mercedes deposit are the product of the erosion and deposition of lithified bauxites located at higher elevations in the Bahoruco ranges. Based on the available data, we suggest a mixed lithological source for the bauxite deposits at the district scale: bedrock carbonates and an igneous source of likely mafic composition.

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Section: Discussionmentioning

confidence: 99%

Section: Geological Framework and Stratigraphy Of The Sierra De Bahorucomentioning

confidence: 99%

Geological, geochemical and mineralogical characteristics of REE-bearing Las Mercedes bauxite deposit, Dominican Republic

Torró

Proenza

Aiglsperger

et al. 2017

Ore Geology Reviews

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“…The formation of the CLIP is widely associated with the Galapagos hot spot (Escuder‐Viruete et al., 2016; Hastie & Kerr, 2010; Herzberg et al., 2000; J. L. Pindell & Kennan, 2009). High potential mantle temperatures of 1560°C–1620°C associated with the CLIP (Herzberg et al., 2000) and its eruption onto old unaltered Pacific oceanic lithosphere, make the CLIP a likely place to observe a thickened lithosphere associated with a depleted mantle root at its base.…”

Section: Introductionmentioning

confidence: 99%

“…This has led to suggestions of a compositional boundary that reflects the depth extent of depletion during melting (Gaherty et al, 1999;Hirth & Kohlstedt, 1996;Yamamoto & Morgan, 2009). The formation of the CLIP is widely associated with the Galapagos hot spot (Escuder-Viruete et al, 2016;Hastie & Kerr, 2010;Herzberg et al, 2000;J. L. Pindell & Kennan, 2009).…”

mentioning

confidence: 99%

Seismic Discontinuities Across the North American Caribbean Plate Boundary From S‐to‐P Receiver Functions

Possee

Rychert

Harmon

et al. 2021

Geochem Geophys Geosyst

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“…Hypothesis 1 would imply: melting of the CLIP mantle which remained attached to the terrane; and/or a northward-directed flow of the neighbouring CLIP mantle (see examples of lateral plume/mantle flows in: Hoernle et al, 2008;Escuder-Viruete et al, 2011;Escuder-Viruete, Joubert, Abad, P erez-Valera, & Gabites, 2016;Whattam & Stern, 2015). Moreover, a terrane accretion during the early to middle Turonian could have allowed a longer time gap -ca.…”

Section: H1: the Manzanillo Terrane Was Accreted Frontally To The Mcomentioning

confidence: 99%

Rapid vertical motions and formation of volcanic arc gaps: Plateau collision recorded in the forearc geological evolution (Costa Rica margin)

2018

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The collision of bathymetric features with modern convergent margins has been investigated with the full range of tools used in geosciences. Hence, a comprehensive picture exists of the characteristic effects of collision events on the evolution of convergent margins. In contrast, much less studies documented past collisions of bathymetric features with convergent margins, as colliding features were generally lost to subduction. The arc-trench system of southern Central America provides modern and past textbook examples of active margin interaction with incoming bathymetric reliefs. Here, we propose a synthesis which combines basin and terrane analysis of the forearc of northern Costa Rica and takes up the challenge of documenting past episodes of plateau accretion to the active margin. As illustrated in modern examples, our study shows that kilometric uplift of the overriding plate and termination of the volcanic arc activity are the most profound effects of colliding/accreting oceanic plateaus. Kilometric uplift of the forearc is documented by short-lived (ca. 3 m.y.) occurrences of shallow-water deposits in an overall deep-water forearc record. These shallow deposits contain material reworked from underlying sedimentary and basement lithologies. The development of spatial gaps in arc volcanism is deduced from the transition from arcderived turbidites to pelagic sediments. Eventually, end of the collision event is evidenced by the subsidence of the whole forearc to deep-water environments.Basin subsidence is accompanied or followed by renewed volcanic arc activity and coeval arc-derived sedimentation, which may occur 1-7 m.y. after plateau collision. These past episodes of plateau accretion are archetypal for the following reasons: (a) they may be studied in outcrop, whereas most of the modern collisions of plateaus largely occur underwater; (b) no tectonic or metamorphic imprint has significantly complicated the forearc geological record; (c) the colliding feature and the sedimentary response to its collision are both preserved in the forearc geology; (d) they may be used as analogues for any setting where a bathymetric feature is suspected to have caused rapid forearc uplift and cessation of the volcanic arc activity.---

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The basaltic volcanism of the Dumisseau Formation in the Sierra de Bahoruco, SW Dominican Republic: A record of the mantle plume-related magmatism of the Caribbean Large Igneous Province

Cited by 26 publications

References 47 publications

Geological, geochemical and mineralogical characteristics of REE-bearing Las Mercedes bauxite deposit, Dominican Republic

Geological, geochemical and mineralogical characteristics of REE-bearing Las Mercedes bauxite deposit, Dominican Republic

Seismic Discontinuities Across the North American Caribbean Plate Boundary From S‐to‐P Receiver Functions

Rapid vertical motions and formation of volcanic arc gaps: Plateau collision recorded in the forearc geological evolution (Costa Rica margin)

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