Shallow open-system evolution of basaltic magma beneath a subduction zone volcano: The Masaya Caldera Complex, Nicaragua (original) (raw)

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Late Pleistocene to Holocene temporal succession and magnitudes of highly-explosive volcanic eruptions in west-central Nicaragua Cover Page

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Volcanism and geochemistry in Central America: Progress and problems Cover Page

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Intra-eruption changes in composition of some mafic to intermediate tephras in Central America Cover Page

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Magmatic Evolution and plumbing system of ring-fault volcanism: the Vulcanello Peninsula (Aeolian Islands, Italy) Cover Page

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The Masaya Triple Layer: A 2100 year old basaltic multi-episodic Plinian eruption from the Masaya Caldera Complex (Nicaragua) Cover Page

The Cinotepeque Range of central El Salvador: Geology, magma origin, and volcanism

2015

Abstract. The Cinotepeque Range is a geological block in NW El Salvador with a complicated volcanic history. Due to the absence of data concerning the geological basement, it remains unclear when volcanic activity started in this zone. The oldest rocks found in the Cinotepeque Range are rhyolitic basal ignimbrites produced from unknown sources. Volcanic activity then proceeded with the silicic pyroclastic products of calderas, the activity of which can be traced up to the Holocene. It is difficult to identify the exact sources of individual pumiceous deposits. Their potential candidates are the three calderas Ilopango Antiguo, Old Coatepeque, and Chilamatal. Later, extrusions of lava sheets of “inferior ” and “superior ” andesites, interrupted by the deposition of agglomeratic pyroclastic flows, called “Rana”, covered the majority of the landscape. The Rana pyroclastic flows were most probably produced from Texistepeque Caldera located between the towns of Santa Ana and Metapán. The...

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The Cinotepeque Range of central El Salvador: Geology, magma origin, and volcanism Cover Page

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Volcanic history of the Conchagua Peninsula (eastern El Salvador) Cover Page

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Symmetrical and segmented variation of physical and geochemical characteristics of the central american volcanic front Cover Page

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Element fluxes from the volcanic front of Nicaragua and Costa Rica Cover Page

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Element fluxes from the volcanic front of Nicaragua and Cost Rica Cover Page