Browsing Geología by Author "Ramírez Umaña, Carlos José"

Now showing items 1-3 of 3

    • Actividad histórica y análisis de la amenaza del volcán Turrialba, Costa Rica 

      González Ilama, Gino Steven; Amador Mora, Raúl Alberto; Ramírez Umaña, Carlos José; Rouwet, Dmitri; Alpízar Segura, Yemerith; Picado, Cristian; Mora Chinchilla, Rolando (2015)
      The historic activity of Turrialba volcano was studied based on traveler’s reports and newspapers of the 19th century. In 1864-1866, the volcano was in a period of magmatic eruptions which can be subdivided in two stages: ...

    • Temporal variations in fumarole gas chemistry at Poás volcano, Costa Rica 

      Fischer, Tobias P.; Ramírez Umaña, Carlos José; Mora Amador, Raúl Alberto; Hilton, David R.; Barnes, J. D.; Sharp, Zachary D.; Le Brun, M.; de Moor, J. Maarten; Barry, Peter H.; Füri, Evelyn; Shaw, A.M. (2015-03)
      We report the chemical and isotopic composition of fumarole gas discharges collected at Poás Volcano, Costa Rica from 2001 to 2014, covering a period during which the volcano experienced a series of phreatic eruptions ...

    • The last step of the volcanic unrest in Turrialba volcano: a new stage of magmatic eruptions 

      González Ilama, Gino Steven; Mora Amador, Raúl Alberto; Ramírez Umaña, Carlos José; Lucchi, Federico; Rouwet, Dmitri; Forni, Francesca; Alpízar Segura, Yemerith (2015)
      In 1864-1866, Turrialba volcano had a strombolian eruption with some phases of phreatic and phreatomagmatic activity, that covered the Central Valley of Costa Rica with a variable thickness of ash. During this eruption, ...