Providencia Island: A Miocene Stratovolcano on the Lower Nicaraguan Rise, Western Caribbean—A Geological Enigma Resolved

2021/06/09 by A. L. Smith, M. J. Roobol, G. S. Mattioli +2 · 1 voice
Earth and Planetary Sciences · #Geological and Geochemical Analysis #earthquake and tectonic studies #Geological and Tectonic Studies in Latin America

paper · doi:10.1130/mwr219

openalex publication_date 2021/06/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/22

Abstract

Providencia is the only example of subaerial volcanism on the Lower Nicaraguan Rise. In this volume, the authors examine this volcanism and the geological history of the western Caribbean and the Lower Nicaraguan Rise, whose origin and role in the development of the Caribbean plate has been described as enigmatic and poorly understood. While the Providencia alkaline suite is similar to others within the Western Caribbean Alkaline Province, its subalkaline suite is unique, having no equivalent within the province. In order to unravel its complex history and evolution, this volume presents new and previously published results for the geology, geochemistry, petrology, and isotopic ages from the Providencia island group.

Citations

• A review of K-Rb fractionation trends by covariance analysis
• A Guide to the Chemical Classification of the Common Volcanic Rocks
• Trace element and isotopic effects of combined wallrock assimilation and fractional crystallization
• Ascent-driven crystallisation of dacite magmas at Mount St Helens, 1980–1986
• Volcanic rock series in island arcs and active continental margins

Discussions

• It's not the only example of this either--there are other too-old-zircon examples associated with the Caribbean Large Igneous Province, too. (This one isn't in an open access pub though.) [bsky, 0 points, 0 comments]

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