La Concepcion Tephra

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Journal Article
Journal: Geology
Published: 01 August 2015
Geology (2015) 43 (8): 743–746.
... of 0.65–0.8 km 3 ( Vallance et al., 1995 ). Dating of two tephra fall deposits by Kitamura and Matías (1995) confine the age of the sector collapse within 1500–600 yr ago. Episodic activity since the 16 th century rebuilt the edifice within the collapse amphitheater, creating the Cerro Chino...
Journal Article
Journal: GSA Bulletin
Published: 01 July 2013
GSA Bulletin (2013) 125 (7-8): 1301–1318.
... in age. We adopt the name Las Lajas formation to refer to the fluvial sediments along the major river systems that drain Barú VolcaThese sediments lie on an erosional unconformity above the Concepción formation and other older units to produce several flights of strath terraces. Terraces...
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Series: GSA Special Papers
Published: 01 November 2013
DOI: 10.1130/2013.2498(05)
... Concepción is currently the most active composite volcano in Nicaragua. Ash explosions of small to moderate size (volcano explosivity index 1–2) have occurred on a regular basis. Gravity data collected on and around the volcano between 2007 and 2010 confirm that a younger cone is built atop...
Journal Article
Journal: Geology
Published: 01 July 2009
Geology (2009) 37 (7): 651–654.
... a volcano's life, its shape evolves depending on the prevailing processes. Thus, volcano morphology potentially contains information on the balance of such factors as age, growth stage, composition, eruption rate, vent position and migration, degree of erosion, lava/tephra ratio, and deformation...
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Journal Article
Journal: GSA Bulletin
Published: 01 March 2014
GSA Bulletin (2014) 126 (3-4): 481–498.
... Constitucion and Concepcion in Chile : Physics of the Earth and Planetary Interiors , v. 175 , p. 78 – 85 , doi:10.1016/j.pepi.2008.02.015 . Servicio Hidrográfico y Oceanográfico de la Armada de Chile (SHOA) , 1987 , Lago Villarrica : Valparaíso, Chile, SHOA , scale 1:40, 000, 1 sheet...
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Journal Article
Published: 24 July 2013
Journal of the Geological Society (2013) 170 (5): 723–736.
...: Caracterización Climática, IREN-Corfo, Publicación 26, 1979; Perspectivas de desarrollo de los recursos de la VII Región: Climatología, IREN-Corfo, Publicación 25, 1979 ( http://www.atmosfera.cl/HTML/datos/datos_02.html ). Fig. 5. Latitudinal distribution of the trench fill volume in relation to plate...
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Journal Article
Published: 09 September 2020
Geological Magazine (2021) 158 (5): 891–904.
... ) Marine bioerosion in rocks of the prehistoric tholos of La Pastora (Valencina de la Concepción, Seville, Spain): archaeological and palaeoenvironmental implications . Journal of Archaeological Science 41 , 435 –6. doi: 10.1016/j.jas.2013.09.001 . Collinson JC , Mountney NP...
Journal Article
Journal: Geosphere
Published: 02 November 2021
Geosphere (2021) 17 (6): 2144–2171.
... monogenetic eruptions in the region included phases of violent Strombolian to sub-Plinian intensity that produced tephra-laden plumes approaching altitudes of 20 km ( Alfano et al., 2019 ). Most intraplate volcanoes in the Southwest are in sparsely populated areas, and eruptions therefore may present lower...
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Journal Article
Journal: Geosphere
Published: 05 March 2019
Geosphere (2019) 15 (2): 450–479.
... Troncoso, alta Cordillera de los Andes, VII Región, Chile: Noticia preliminar , in Proceedings, Congreso Geológico Chileno 3, Concepción, Chile, 8–14 Noviembre : Universidad de Chile, Departmento Geología , Santiago , p. A84 – A110 . Corvalán , J. , 1982 , El límite Triásico-Jurásico en la...
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Journal Article
Published: 03 July 2018
Bulletin of the Seismological Society of America (2018) 108 (4): 2183–2198.
..., most of them weak. Based on analyses of the tephra deposited in the area of the PPVC, Naranjo (2012) characterized the observed volcanic activity between 4 September and November 2010 as an indication of a system reactivation. Currently, a hydrothermal system fed by a melting ice cap and infiltrating...
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Journal Article
Journal: Economic Geology
Published: 01 November 2017
Economic Geology (2017) 112 (7): 1595–1628.
... Complex is part of the 1,300-km-long Central volcanic zone ( James, 1971 ; Harmon et al., 1984 ), located between Arequipa (Peru) and La Serena (Chile) within the current N-S-trending High Andes volcanic arc. This arc has been active since the late Oligocene, following a stage of magmatic hiatus related...
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Journal Article
Journal: SEG Discovery
Published: 01 April 2004
SEG Discovery (2004) (57): 1–44.
... the rhyolite ow and tuff, transport to the valley via surface and 1 ground water, then further concentra- La Ce Nd Sm Eu Gd Tb Dy Ho Er Tm Yb Lu tion through evaporation in the closed basin environment (Price et al., 2000). FIGURE 3. Chondrite-normalized rare earth element abundances in rocks from the Sierra...
Journal Article
Journal: Geosphere
Published: 16 November 2021
Geosphere (2022) 18 (1): 130–155.
... patterns from LREE to HREE ( Davidson et al., 2013 ). Andesitic magmas with resultant high Sr/Y and La/Yb values are commonly referred to as adakites, but this term has been specifically associated with the melting of subducted oceanic crust ( Kay, 1978 ; Defant and Drummond, 1990 ), which can lead...
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Journal Article
Journal: Geosphere
Published: 01 August 2008
Geosphere (2008) 4 (4): 657–686.
... tephra, and are also formed in analogue models of volcano deformation using sand or other granular material (e.g., Merle and Borgia, 1996 ; Donnadieu and Merle, 1998 ; Merle et al., 2001 ). On the surface of deposits, long ridges, escarpments, and troughs are the morphological expression...
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Journal Article
Published: 17 April 2024
Seismological Research Letters (2024) 95 (2B): 1113–1465.
..., Y. Student: Determining the Feasibility of DAS for Urban Earthquake Monitoring in Athens, Greece. Smolinski, K. T., Bowden, D. C., Lentas, K., Melis, N. S., Simos, C., et al. 5:30 pm Unveiling Seismic Hazards: Paleoseismic Insights From the La Venta Fault in the Forearc Mountains, Mexico. Ramírez...
Journal Article
Published: 27 March 2023
Seismological Research Letters (2023) 94 (2B): 1029–1314.
...., Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile, marco. cisternas@pucv.cl; STEWART, D., Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile, danielmoroni@hotmail.com; GONZÁLEZ, J., Universidad Católica de la Santísima Concepción, Concepción, Chile, juan. gonzalez.carrasco...
Journal Article
Published: 01 April 2021
Seismological Research Letters (2021) 92 (2B): 1213–1479.
... Distribution NUNEZ JARA, S., Universidad de Concepcion Chile, Concepcion, Chile, sebalfnunez@gmail.com; BATAILLE, K., Universidad de Concepción, Concepción, Chile, bataille@udec.cl; BENAVENTE, R., Universidad Católica de la Santísima Concepción, Concepción, Chile, robenavente@gmail.com We employ Bayesian...
Journal Article
Published: 01 April 2020
Seismological Research Letters (2020) 91 (2B): 1095–1338.
... and Residual Analysis for Ridgecrest Sequence, San Simeon, Parkfield and La Habra Events. Parker, J., Heflin, M., Moore, A., Donnellan, A. 34. Dynamic Triggering of the 2019 M7.1 Ridgecrest Earthquake Sequence. Meng, H., Fan, W., Lin, G. 35. Near-Source Ground Motion Characteristics of the Ridgecrest...
Journal Article
Published: 01 April 2022
Seismological Research Letters (2022) 93 (2B): 1115–1372.
... on continued improvement of earthquake and tsunami science. Conveners: Andrea D. Hawkes, University of North Carolina Wilmington (hawkesa@uncw.edu); Diego Melgar, University of Oregon (dmelgarm@uoregon.edu); Lydia M. Staisch, U.S. Geological Survey (lstaisch@usgs.gov); SeanPaul La Selle, U.S. Geological Survey...
Series: Geological Society, London, Geology of Series
Published: 01 January 2007
DOI: 10.1144/GOCH.11
EISBN: 9781862393936
... effort between Chilean and German oceanographers. In 1991, the universities of Concepción, Austral de Chile, Católica de Valparaíso and del Mar instigated a scientific cooperative programme with the Department of Geosciences of the University of Bremen, Germany. Several projects funded by the German...
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