Results 21 to 30 of about 14,904 (246)

Revised calendar date for the Taupo eruption derived by ¹⁴C wiggle-matching using a New Zealand kauri ¹⁴C calibration data set [PDF]

, 2011
Taupo volcano in central North Island, New Zealand, is the most frequently active and productive rhyolite volcano on Earth. Its latest explosive activity about 1800 years ago generated the spectacular Taupo eruption, the most violent eruption known in ...
Boswijk, Gretel, Hogg, Alan G., Lowe, David J., Palmer, Jonathan G., Ramsey, Christopher Bronk   +4 more
core   +2 more sources

High-precision 14C and 40Ar/39Ar dating of the Campanian Ignimbrite (Y-5) reconciles the time-scales of climatic-cultural processes at 40 ka

Scientific Reports, 2017
The Late Pleistocene Campanian Ignimbrite (CI) super-eruption (Southern Italy) is the largest known volcanic event in the Mediterranean area. The CI tephra is widely dispersed through western Eurasia and occurs in close stratigraphic association with ...
B. Giaccio, Irka Hajdas, R. Isaia, A. Deino, S. Nomade   +4 more
semanticscholar   +1 more source

Testing the ureilite projectile hypothesis for the El'gygytgyn impact: determination of siderophile element abundances and Os isotope ratios in ICDP drill core samples and melt rocks [PDF]

, 2013
The geochemical nature of the impactites from International Continental Scientific Drilling Project-El'gygytgyn lake drill core 1C is compared with that of impact melt rock fragments collected near the western rim of the structure and literature data ...
Abe, Alvarez, Anderson, Bell, Belyi, Binzel, Bogard, Buchwald, Burbine, Claeys, Collins, Dabizha, Doerffel, Evans, Feldman, Foriel, Gaffey, Gebhardt, Gelinas, Glushkova, Goderis, Goderis, Goderis, Goderis, Govindaraju, Grieve, Gurov, Gurov, Gurov, Gurov, Gurov, Gurov, Hall, Hassler, Heiken, Hutchison, Jenniskens, Kenkmann, Koeberl, Koeberl, Koeberl, Koeberl, Korotev, Kyte, Kyte, Layer, Maier, Marti, McDonald, McDonald, McDonough, Meisel, Meisel, Melles, Melles, Melles, Morgan, Morgan, Nakamura, Nowaczyk, Palme, Palme, Palme, Palme, Palme, Pernicka, Peucker-Ehrenbrink, Pieters, Plessen, Rankenburg, Raschke, Rollinson, Schmidt, Schmidt, Shukolyukov, Sigurdsson, Simonson, Smit, Stone, Tagle, Tagle, Tagle, Tagle, Tagle, Taylor, Trinquier, Va'lter, Warren, Wasson, Wedepohl, Weisberg, Wittmann, Wolf, Yurimoto, Zolensky   +94 more
core   +1 more source

Geochemical aspects of Kejal kaolin deposit, northwest of Hashtjin, Ardebil province

Journal of Economic Geology, 2012
Kajal kaolin deposit is located ~20 km northwest of Hashtjin, Ardebil province. Field evidence and laboratory investigations show that the deposit is an alteration product of ignimbrites, tuffs, and trachy-andesites of Eocene age.
Ali Abedini, Rahim Masoumi, Ali Asghar Calagari   +2 more
doaj   +3 more sources

Volcanic eruptions from ghost magma chambers [PDF]

, 2008
Recent studies have proposed that magma reservoirs crystallized to a virtually rigid crystal-mush can be partially remelted by diffusion of hot fluids. We show that for a crystal mush with the composition of a K-trachyte from the Campanian Ignimbrite (CI)
BATTAGLIA, MAURIZIO, Mauro Brilli, SOTTILI, Gianluca, TRIGILA, Raffaello   +3 more
core   +1 more source

Geology of Tindfjallajökull volcano, Iceland [PDF]

, 2018
The geology of Tindfjallajökull volcano, southern Iceland, is presented as a 1:50,000 scale map. Field mapping was carried out with a focus on indicators of past environments.
Dave McGarvie, John A. Stevenson, Jonathan D. Moles, Jóhannesson H., Larsen G., Rittman A., Sarah C. Sherlock, Sigurdsson H., Sæmundsson K., Thórarinsson S., USA Defence Mapping Agency   +10 more
core   +3 more sources

SiO2-TiO2 Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NOx Gas and Methyl Orange Dye

International Journal of Photoenergy, 2020
In this work, a SiO2-TiO2 coating, composed of different numbers of TiO2 and SiO2 layers, was fabricated by a spray-coating technique. The films were deposited onto ignimbrite rock and divided into two groups according to the number of SiO2 layers ...
Daily Maria Magdalena Gallegos Florez, Rivalino Benicio Guzman Ale, Albeniz Ferdinand Huaracallo Idme, Luis Antonio Lazo Alarcon, Edgar Apaza Huallpa, Yolanda Castro, Pierre Giovanny Ramos Apestegui, Juan Martin Rodriguez Rodriguez   +7 more
doaj   +1 more source

A stress-controlled mechanism for the intensity of very large magnitude explosive eruptions [PDF]

, 2011
Large magnitude explosive eruptions are the result of the rapid and large-scale transport of silicic magma stored in the Earth's crust, but the mechanics of erupting teratonnes of silicic magma remain poorly understood.
Costa, Antonio, Gottsmann, Joachim, Melnik, Oleg, Sparks, R. S. J.   +3 more
core   +1 more source

Isotope geochemistry and petrogenesis of peralkaline Middle Miocene ignimbrites from central Sonora: relationship with continental break-up and the birth of the Gulf of California [PDF]

, 2008
Middle Miocene peralkaline ignimbrites constitute a specific geodynamic marker of the early stage of opening of the Gulf of California, preserved either in central Sonora or the Puertecitos area, in Baja California.
Amortegui, Andrea, Bosch, Delphine, Brunet, Pierre, Demant, Alain, Lapierre, Henriette, Paz Moreno, Francisco A., Stock, Joann M., Vidal Solano, Jesús R.   +7 more
core   +3 more sources

Impact of volcanism on the sedimentary record of the Neuquén rift basin, Argentina: towards a cause and effect model [PDF]

, 2018
The analysis of volcano-sedimentary infill in sedimentary basins constitutes a challenge for basin analysis and hydrocarbon exploration worldwide. In order to understand the contribution of volcanism to the sedimentary record in rift basins, we study the
Abebe, Acocella, Acocella, Acocella, Aguirre-Díaz, Allan, Allen, Backert, Bahk, Baker, Baker, Bernard, Bilmes, Blair, Blair, Blair, Bosworth, Brantley, Brown, Busby, Cabrera, Caineng, Cas, Chambefort, Chorowicz, Clavero, Cole, Corvec, Costa, Coussot, Cristallini, D'Elia, D'Elia, D'Elia, D'Elia, Damborenea, Davidson, Downs, Dupraz, Ebinger, Ebinger, Ebinger, Feng, Ferguson, Fisher, Fisher, Fisher, Franzese, Franzese, Franzese, Gawthorpe, Glicken, Goodbred, Gravley, Groeber, Gudmundsson, Hackett, Haughton, Hayes, Hinterwimmer, Howell, Karátson, Lara, Leanza, Leeder, Leeder, Legarreta, Legarreta, Lenhardt, Lipman, Lipman, Manville, Martina, Martí, Mathisen, McPherson, McPhie, Moore, Moore, Morel, Morley, Muravchik, Muravchik, Nemec, Nishikia, Németh, Németh, Németh, Orton, Palmer, Palmer, Palmer, Paredes, Parfitt, Petterson, Pierson, Postma, Postma, Pángaro, Pángaro, Ramos, Ramos, Ravnås, Reading, Reading, Riding, Riggs, Rowland, Rowland, Schiuma, Schlische, Schlische, Schlische, Schneider, Scott, Scott, Shultz, Siebert, Skilling, Smith, Smith, Smith, Smith, Smith, Spalletti, Spinks, Sruoga, Sruoga, Stipanicic, Stipanicic, Talbot, Thouret, Tucker, Ui, Uliana, Umazano, Van Wyk De Vries, Varela, Vergani, Vergani, Vessell, Walker, White, White, Wilson, Wolfenden, Wolfenden, Wooller, Wyk de Vries, Zanchetta, Ziegler   +150 more
core   +2 more sources