The 322 ka Tiribí Tuff: stratigraphy, geochronology and mechanisms of deposition of the largest and most recent ignimbrite in the Valle Central, Costa Rica

  title={The 322 ka Tirib{\'i} Tuff: stratigraphy, geochronology and mechanisms of deposition of the largest and most recent ignimbrite in the Valle Central, Costa Rica},
  author={Wendy P{\'e}rez and Guillermo E. Alvarado and Phillip B. Gans},
  journal={Bulletin of Volcanology},
The Tiribí Tuff covered much of the Valle Central of Costa Rica, currently the most densely populated area in the country (∼2.4 million inhabitants). Underlying the tuff, there is a related well-sorted pumice deposit, the Tibás Pumice Layer. Based on macroscopic characteristics of the rocks, we distinguish two main facies in the Tiribí Tuff in correlation to the differences in welding, devitrification, grain size, and abundance of pumice and lithic fragments. The Valle Central facies consists… 
Geochemical and Geochronological Characterisation of the Poas Stratovolcano Stratigraphy
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Route 27, known as Ciudad Colon-Caldera Highway, offers excellent geological sections showing muchof the volcanic and sub-volcanic stratigraphy of the western part of the Central Valley and the
The Ediacaran volcanosedimentary succession of Gabal Abu Had, North Eastern Desert, Egypt: geological study, facies analyses, and depositional setting
Gabal Abu Had is an exposure of a volcanosedimentary succession in the North Eastern Desert Basement Complex. This succession includes intercalation of two major rock units, which are Dokhan
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We studied the tephra inventory of 18 deep‐sea drill sites from six DSDP/ODP legs (Legs 84, 138, 170, 202, 205, and 206) and two IODP legs (Legs 334 and 344) offshore the southern Central American
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The Tertiary Taylor Creek Rhyolite of southwest New Mexico comprises at least 20 lava domes and flows. Each of the lavas was erupted from its own vent, and the vents are distributed throughout a 20
Origin of silicic volcanic rocks in Central Costa Rica: a study of a chemically variable ash-flow sheet in the Tiribí Tuff
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On the Geology of a part of Costa Rica
  • G. Attwood
  • Geology
    Quarterly Journal of the Geological Society of London
  • 1882
Conclusions The conclusions at which I have arrived from a personal survey and examination of the country which I have just described, and also from the analyses and microscopical examinations made
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The Rio Caliente ignimbrite is a multi-flow unit orcompound ignimbrite formed during a major late Quaternary explosive rhyolitic eruption of La Primavera volcano, Mexico. The eruption sequence of the
Landscape evolution within a retreating volcanic arc, Costa Rica, Central America
Subduction of hotspot-thickened seafloor profoundly affects convergent margin tectonics, strongly affecting upper plate structure, volcanism, and landscape evolution. In southern Central America,
The emplacement of intermediate volume ignimbrites: A case study from Roccamonfina Volcano, Southern Italy
A model is presented for the emplacement of intermediate volume ignimbrites based on a study of two ∼6 km3 volume ignimbrites on Roccamonfina Volcano, Italy. The model considers that the flows were
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The Taupo eruption, New Zealand. II. The Taupo Ignimbrite
  • C. Wilson
  • Geology
    Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences
  • 1985
The ca. 30 km3 Taupo ignimbrite was erupted as a climax to the ca. AD 186 Taupo eruption in the central North Island of New Zealand. It was erupted as a single vent-generated flow unit over a time