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San Antonio Tephra

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Series: GSA Special Papers
Published: 01 January 2006
DOI: 10.1130/2006.2412(10)
... The youngest highly explosive basaltic eruptions from Masaya Caldera in central western Nicaragua produced five main pyroclastic deposits: the San Antonio Tephra, La Concepción Tephra, the Masaya Triple Layer, and the Masaya Tuff with the Ti cuan-te pe Lapilli. This tephra sequence...
Journal Article
Journal: GSA Bulletin
Published: 01 August 2000
GSA Bulletin (2000) 112 (8): 1234–1249.
... had periodic explosive eruptions for at least the past 40 k.y. The most recent major eruption occurred at the San Antonio volcano, the youngest volcanic edifice forming the complex, about 1950 yr ago. The Peléan style eruption, issued from the southwest part of the dome, and swept a 30° sector...
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Journal Article
Published: 01 October 2012
Italian Journal of Geosciences (2012) 131 (3): 389–402.
... in the seismic profile; B ) lower Pleistocene horizontal laminated sand and silt of the Scoppito-Madonna della Strada unit (Ponte Peschio site); C ) epikarst on L’Aquila Breccia mantled by colluvium and alluvial deposit (S. Antonio site); D ) tephra horizon (white arrow) in the colluvium-alluvial deposit...
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Journal Article
Journal: GSA Bulletin
Published: 01 May 2008
GSA Bulletin (2008) 120 (5-6): 599–618.
...Brad S. Singer; Brian R. Jicha; Melissa A. Harper; José Antonio Naranjo; Luis E. Lara; Hugo Moreno-Roa Abstract Forty-three 40 Ar/ 39 Ar age determinations of lava flows, domes, ignimbrites, and dikes, plus 14 C dates from seven distal tephra layers, combined with stratigraphy, geochemistry, and Sr...
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Journal Article
Published: 24 July 2013
Journal of the Geological Society (2013) 170 (5): 723–736.
... axial submarine channel ( Fig. 2a and b ) that originates from the Chacao Canyon at 41°S and is connected to the exits of large submarine canyon systems of the continental margin (the Callecalle Canyon, Tolten Canyon, Biobio Canyon and San Antonio Canyon; Thornburg & Kulm 1987 ; Thornburg et al...
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Journal Article
Journal: GSA Bulletin
Published: 01 May 2001
GSA Bulletin (2001) 113 (5): 561–574.
... of Cañada Camada within the Peralta Tuff ( Smith et al., 1991 ; McIntosh and Quade, 1995 ), and a 6.19 Ma tephra ( Table 1 , sample 5) is present ∼30 m above this contact. The youngest Cochiti Formation strata are in the north-central part of the basin. Tephra provisionally correlated to the San Diego...
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Journal Article
Published: 01 February 2010
Italian Journal of Geosciences (2010) 129 (1): 156–175.
... compared and correlated with the tephra recently found by M unno & P etrosino (2007) in the San Gregorio Magno Basin, 80 km south of Salerno, and by D i V ito et alii (2008) in the area north of Campi Flegrei. Hence the correlation emerging for some of the pyroclastic layers surveyed along...
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Journal Article
Journal: Geosphere
Published: 16 February 2018
Geosphere (2018) 14 (2): 492–509.
... December 2016]), and within 500 km of any Holocene active volcano ( Fig. 1 ; Table 1 ). Cities in the Democratic People’s Republic of Korea (PRK, or North Korea) may be threatened by tephra falls from Changbaishan-P’aektu-san on the border of China and PRK, although these are nearly 400 km from Pyongyang...
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Journal Article
Published: 01 May 2006
Vadose Zone Journal (2006) 5 (2): 610–627.
... at Yucca Mountain, Nevada: Effects of fracture heterogeneity and flow in the nonwelded Paintbrush tuff unit. CNWRA Letter Rep . US NRC Contract NRC-02-97-009 , San Antonio, TX . Available at http://lsnnet.gov/using LSN Accession Number NRC000007248 (verified 15 Mar. 2006). Ferrill , D.A...
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Journal Article
Published: 30 March 2020
Canadian Journal of Earth Sciences (2020) 57 (10): 1238–1253.
... éruptifs aux 14 e et 18 e siècles demeurent à ce jour sans réponses. De nouveaux résultats de datation au carbone radioactif de charbon de bois prélevé immédiatement sous des dépôts de téphra proximaux à la cheminée et de l’information temporelle complémentaire indiqueraient qu’une éruption vers 1675...
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Journal Article
Journal: GSA Bulletin
Published: 01 February 2003
GSA Bulletin (2003) 115 (2): 230–248.
... :: Sociedad Científica Antonio Alzate , no. 18 , p. 83 – 112 . Ortega-Guerrero , B. , and Newton , A.J. , 1998 , Geochemical characterization of late Pleistocene and Holocene tephra layers from the basin of Mexico, central Mexico:: Quaternary Research , 50 . 90 - 106 . Otis , H.E...
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Journal Article
Published: 25 February 2020
Bulletin of the Seismological Society of America (2020) 110 (2): 399–409.
...Giuliana Mele; Antonio Rovelli; Antonio Fodarella; Marco Mancini ABSTRACT After the 2009 L’Aquila M w 6.1 earthquake, particular attention was paid to the large difference of Mercalli–Cancani–Sieberg (MCS) macroseismic intensity between the nearby villages of Onna (9.5 MCS) and Monticchio (6 MCS...
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Journal Article
Journal: GSA Bulletin
Published: 01 May 2008
GSA Bulletin (2008) 120 (5-6): 750–767.
... active tectonic margins. Data for Aoga Shima Canyon, Monterey Canyon, and the San Antonio Submarine Canyon are derived from Klaus and Taylor (1991) , Greene et al. (2002) , and Hagen (1996) , respectively. The longitudinal profiles of the two studied channels are similar ( Figs. 6A and 6B...
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Journal Article
Journal: Geosphere
Published: 01 June 2013
Geosphere (2013) 9 (3): 614–646.
... dike that presumably was the source vent for some of the mafic flows is exposed along Forest Road 376 south of San Antonio Hot Spring ( Kelley et al., 2004 ). Porphyritic trachyandesite that lies above the basaltic andesite and is intercalated with volcaniclastic sediments has a plagioclase 40 Ar/ 39...
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Journal Article
Journal: Geosphere
Published: 06 October 2020
Geosphere (2020) 16 (6): 1457–1478.
... of San Antonio ( Fig. 1 ). It is developed on two structural basins separated by the Socorro accommodation zone (SAZ; Fig. 1 ; Chapin, 1989 ; Chapin and Cather, 1994 ), located south of Socorro Mountain. The SAZ is marked by a change from west-dipping strata controlled by E-dipping faults to the north...
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Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 01 February 2012
Lithosphere (2012) 4 (1): 40–62.
... Nuclear Society , p. 93 – 96 . Fedors R.W. Winterle J.R. Illman W.A. Dinwiddie C.L. Hughson D.L. , 2002 , Unsaturated zone flow at Yucca Mountain, Nevada: Effects of fracture heterogeneity and flow in the nonwelded Paintbrush Tuff unit: San Antonio, Texas, Center for Nuclear...
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Journal Article
Published: 01 March 2007
The Journal of Geology (2007) 115 (2): 243–251.
... geology of south central Texas: a guidebook for the 1976 South Texas Geological Society field trip. San Antonio, TX, S. Texas Geol. Soc. , p. 86 – 104 . Appendix : Methodology   ...
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Journal Article
Journal: GSA Bulletin
Published: 01 September 2010
GSA Bulletin (2010) 122 (9-10): 1401–1422.
...Brandon Browne; Marcus Bursik; Justin Deming; Michael Louros; Antonio Martos; Scott Stine Abstract Red Cones are a pair of basaltic cinder cones located 5 km SSW of Mammoth Mountain at the southern end of the Mono-Inyo volcanic chain, in eastern California. Charcoal recovered at two separate...
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Journal Article
Published: 01 March 2002
The Journal of Geology (2002) 110 (2): 211–226.
... for their formation is neither topography nor temperature but rather moisture. Climatic data for the Puna region between 25° and 28°S are scanty. At San Antonio de los Cobres at 3777 m ( fig. 3 , lat. 24.2°S), annual precipitation of 104 and 112 mm are reported; the bulk of the precipitation falls during...
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Journal Article
Journal: GSA Bulletin
Published: 01 March 2003
GSA Bulletin (2003) 115 (3): 298–313.
..., El Parapeto, La Sierrita, San Martín, and El Carretón faults ( Figs. 2–3 )—marks the eastern limit of the domain. Aerial-photographic analysis and field observations indicate that the north-northwest–striking, down-to-the-southwest Agua de Mayo fault system ( Fig. 2 ) gradually transforms southward...
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