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Quito Basin

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Journal Article
Published: 24 October 2017
Bulletin of the Seismological Society of America (2017) 107 (6): 2917-2926.
... close to three million inhabitants, is located in an earthquake‐prone region that has been struck by important events in the past. The city is built on the hanging wall of an active reverse fault, constituting a piggy‐back basin filled with volcanic and fluvial origin deposits. To date, the Quito basin...
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Geomorphology and tectonic setting of the <b>Quito</b> <b>basin</b>. The city has grown o...
Published: 22 October 2014
Figure 2. Geomorphology and tectonic setting of the Quito basin. The city has grown on a 50 km long piggy‐back basin generated by the permanent activity of the Quito reverse fault dipping west. Northeast–southwest‐trending hills bordering Quito to the east: folds are produced by the thrust
Journal Article
Published: 21 February 2018
Seismological Research Letters (2018) 89 (2A): 432-439.
..., such as that of the strike‐slip Cosanga‐Chingual‐Pallatanga‐Puná fault system ( Alvarado et al. , 2016 ) family or those of the Quito basin faults. We have been able to determine rates of stress accumulation along the subduction interface in order to be informed of areas that are prone to large earthquakes. Recently we...
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Journal Article
Published: 14 February 2018
Seismological Research Letters (2018) 89 (2A): 534-541.
.... A. Alvarado A. Naya V. A. Guéguen P. Mercerat E. D. Singaucho J. C. Bertrand E. , and Perrault M. , et al. 2017 . Low‐frequency seismic amplification in the Quito basin (Ecuador) revealed by accelerometric recordings of the RENAC network , Bull. Seismol. Soc. Am. 107...
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Journal Article
Published: 22 October 2014
Seismological Research Letters (2014) 85 (6): 1316-1327.
...Figure 2. Geomorphology and tectonic setting of the Quito basin. The city has grown on a 50 km long piggy‐back basin generated by the permanent activity of the Quito reverse fault dipping west. Northeast–southwest‐trending hills bordering Quito to the east: folds are produced by the thrust...
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Journal Article
Published: 15 February 2017
Seismological Research Letters (2017) 88 (2A): 287-299.
... in the Quito basin ( Laurendeau et al. , 2017 ). Approximately half of the stations are located in the fore‐arc region, west of the volcanic front, and the other half lie in the back‐arc region. The records at six example stations are displayed in Figure  2 . The M w  6.9 and 6.7 aftershocks were recorded...
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Journal Article
Published: 01 April 2013
Bulletin of the Seismological Society of America (2013) 103 (2A): 773-786.
... zone and in the central part of the territory, in the shallow crust (see Fig.  1 ). The Geophysical Institute in Quito, at the Escuela Politécnica Nacional ( IGEPN ), is in charge of estimating the seismic hazard over the national territory. The present study is part of a broader program aimed...
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Journal Article
Published: 06 March 2019
Seismological Research Letters (2019) 90 (3): 1346-1354.
... Nacional in Quito deployed 55 seismometers and 10 ocean‐bottom seismometers above the rupture zone and adjacent areas to record aftershocks. In this article, we describe the details of the U.S. portion of the rapid response and present an earthquake catalog from May 2016 to May 2017 produced using data...
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Journal Article
Published: 03 April 2018
Bulletin of the Seismological Society of America (2018) 108 (3A): 1443-1464.
... to produce mean probabilistic hazard maps and 16th and 84th percentile hazard maps. Finally, a specific study is led in the cities of Quito, Guayaquil, and Esmeraldas, in order to compare the contributions of source model uncertainty and GMM uncertainty to overall uncertainty. Yepes et al. (2016...
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Journal Article
Journal: GSA Bulletin
Published: 01 March 2017
GSA Bulletin (2017) 129 (3-4): 415-428.
...C. Witt; M. Rivadeneira; M. Poujol; D. Barba; D. Beida; G. Beseme; G. Montenegro Abstract A comparison of detrital zircon ages from the Cenozoic forearc basins in SW Ecuador–NW Peru and those derived from the Amotapes Massif offers a singular opportunity to shed some light on the evolution...
Series: AAPG Memoir
Published: 01 January 1995
DOI: 10.1306/M62593C29
EISBN: 9781629810836
... Abstract Industry reflection seismic profiles from the northern part of the Oriente basin display families of basement-rooted structures ranging in age from early Mesozoic (and possibly Permian) to Quaternary. We interpret the Mesozoic-Cenozoic structures to be kinematically and chronologically...
Series: AAPG Memoir
Published: 01 January 1995
DOI: 10.1306/M62593C30
EISBN: 9781629810836
... Abstract The Oriente basin of Ecuador has produced a substantial amount of oil over the past 20 years. Nearly 3 billion bbl of oil have been recovered from the principal reservoirs in the Cretaceous Napo and Hollin formations. Subtle north-south structures, commonly associated with Andean...
Journal Article
Published: 01 December 2003
Clays and Clay Minerals (2003) 51 (6): 664-674.
... and particle ab size of 0.02–0.05 μm) of the East-Slovak Basin. The combined data set allows us to ascertain the crystallization conditions of the illite material from two bentonite units collected at two basinal sites located ~20 km apart, and characterized by prolonged diagenetic conditions induced...
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Journal Article
Journal: GSA Bulletin
Published: 01 January 2010
GSA Bulletin (2010) 122 (1-2): 89-108.
...César Witt; Jacques Bourgois Abstract Trench-parallel extensional strain resulting from the northward drift of the North Andean block has controlled the tectonic evolution of the Gulf of Guayaquil-Tumbes Basin, at least for the past ∼1.8–1.6 Ma. Industrial multichannel seismic and well data...
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Journal Article
Published: 01 January 2015
Journal of the Geological Society (2015) 172 (1): 139-152.
... for the Mkhondo Valley Metamorphic Suite by Condie et al . (1996) , who suggested that deposition may have occurred along a passive continental margin or in a continental interior basin. In the case of intrusion of AGC 261 into the sediment, all grains should show older ages than the c . 3.58 Ga tonalitic...
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Journal Article
Journal: Palynology
Published: 01 November 2015
Palynology (2015) 39 (3): 350-361.
... the study area, is dominated by a tropical trade wind regime, characterised by strong easterlies bringing moist air masses from the Amazon basin ( Beck et al. 2008 ). The Cordillera Real acts as a climatic divide separating moist conditions on the eastern side from the (semi-) desert climate on the west...
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Journal Article
Published: 01 September 2010
Journal of the Geological Society (2010) 167 (5): 943-952.
... author (e-mail: nclauer@illite.u-strasb.fr ) 26 4 2010 28 9 2009 © The Geological Society of London 2010 Magnesite has been described as a trace- or an ore-mineral in a large variety of environments such as marine evaporites, coastal lakes and sabkhas, paralic coal basins...
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Series: Geological Society, London, Special Publications
Published: 01 January 2009
DOI: 10.1144/SP328.19
EISBN: 9781862395763
... of the northern Andes during the Cretaceous and Paleocene. Two consequences must be emphasized. First, this implies that the accretion of oceanic terranes was not preceded by subduction, and therefore, that the oceanic terranes were not separated from the Andean margin by wide oceanic basins. Second, since...
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Series: Geological Society, London, Special Publications
Published: 01 January 2013
DOI: 10.1144/SP377.1
EISBN: 9781862396388
... by long-distance migration coming from the west (Quito kitchen) before the Cordillera Real uplift occurred ( Feininger 1975 ; Dashwood & Abbots 1990 ) and/or from the south (Maranon kitchen of the MOP) ( Marksteiner & Alemán 1997 ). Generally, long-distance migrations in foreland basins ( Head...
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Journal Article
Journal: AAPG Bulletin
Published: 01 May 2000
AAPG Bulletin (2000) 84 (5): 652-682.
... in sedimentology, stratigraphy, regional geology, and reservoir characterization of the Cretaceous sediments of the Oriente basin.
 
 The Sacha oil field of the Oriente basin is located about 180 km east of the capitol city of Quito, Ecuador ( Figure 1 ). Texaco discovered the field in February 1969...
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