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Baucarit Formation

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Journal Article
Journal: Economic Geology
Published: 01 July 1998
Economic Geology (1998) 93 (4): 510–523.
... core complexes. We formally propose the names Magdalena, Cuesta, El Torre?n, and Tubutama Formations for mid-Tertiary sedimentary and volcanic rocks of the upper plates in the Magdalena and Tubutama basins. The name Baucarit Formation should be restricted to the younger sedimentary rocks overlying...
Series: Society of Economic Geologists Guidebook
Published: 01 January 2010
DOI: 10.5382/GB.42
EISBN: 9781934969953
... eruption of basaltic andesite in thin flows occurred from <27 to 3 Ma. Deposition of the Baucarit Formation, a conglomeratic basin-fill sedimentary unit with thin interlayers of basalt, also occurred in down-dropped basins during the Pliocene to Pleistocene, or approximately 5 to 1 m.y. ago...
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Series: Special Publications of the Society of Economic Geologists
Published: 01 January 2001
DOI: 10.5382/SP.08.05
EISBN: 9781629490328
... eruption of basaltic andesite in thin flows occurred from > 27 to 3 Ma. Deposition of the Baucarit Formation, a conglomeratic basin-fill sedimentary unit with thin interlayers of basalt, also occurred in down-dropped basins during the Pliocene to Pleistocene, or approximately 5 to 1 m.y. ago...
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Image
A view south along the Otates fault (see Fig.  4  for geologic map and geog...
Published: 01 December 2008
fill (Báucarit Formation). (a) represents the Los Otates ranch, (b) the La Loba canyon, and (c) the El Temblor canyon.
Journal Article
Published: 01 December 2008
Bulletin of the Seismological Society of America (2008) 98 (6): 2879–2893.
... fill (Báucarit Formation). (a) represents the Los Otates ranch, (b) the La Loba canyon, and (c) the El Temblor canyon. ...
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Journal Article
Journal: AAPG Bulletin
Published: 01 August 1949
AAPG Bulletin (1949) 33 (8): 1319–1335.
... by plutonic rock masses. In addition, there were several diastrophic periods. The unconformity between the Cretaceous beds and the volcanic Tertiary rocks marks an important period of folding; and the unconformity between the latter and the Baucarit formation of Upper Tertiary points to diastrophic movements...
FIGURES
Series: Society of Economic Geologists Guidebook
Published: 01 January 2010
DOI: 10.5382/GB.42
EISBN: 9781934969953
... to rhyodacite flows of late Miocene and younger age cap many of the plateaus and hills in the region. The Baucarit formation, a conglomeratic, basin fill sedimentary unit intercalated with several thin basalt flows, was deposited during Pliocene and Pleistocene time. The oldest structural episode is related...
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Journal Article
Journal: Geosphere
Published: 01 December 2011
Geosphere (2011) 7 (6): 1392–1418.
... extensional event that formed the north-south elongated basins of the Sonora and Moctezuma Rivers, where thick, Late Oligocene to Miocene volcanic and terrigenous strata of the Báucarit Formation accumulated ( González-León et al., 2010 ) ( Fig. 2 ). Structural relationships of the Tarahumara Formation...
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Journal Article
Journal: GSA Bulletin
Published: 01 May 2008
GSA Bulletin (2008) 120 (5-6): 691–708.
...., 1989 ), the second, related to Basin and Range tectonics, corresponds to ca. 20 Ma basalts intercalated in continental deposits of the Báucarit Formation ( Cochemé et al., 1988 ; Paz-Moreno, 1992 ; Vidal-Solano, 2005 ). Until now, the volcanic evolution of the pre-Pinacate event in the Pinacate...
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Journal Article
Published: 01 June 2010
Bulletin of the Seismological Society of America (2010) 100 (3): 1153–1164.
... with evaporates and the syntectonic continental deposits of the Báucarit Formation. Field checking the fault trace east of Villa Hidalgo did not reveal any obvious morphological or stratigraphic evidence of Quaternary fault activity. The fault dips there between 58° and 78° W, and its throw is a minimum of 1,420...
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Journal Article
Journal: GSA Bulletin
Published: 01 June 2001
GSA Bulletin (2001) 113 (6): 760–773.
... to the Tertiary sedimentary-volcanic sequences (“Baucarit Formation”) in Sonora, México : Geofísica Internacional , 34 . 67 – 77 . Bebout , G.E. , Ryan , J.G. , Leeman , W.P. , and Bebout , A.E. , 1999 , Fractionation of trace elements by subduction- zone metamorphism—Effect...
FIGURES | View All (8)
Journal Article
Published: 01 January 2001
Reviews in Mineralogy and Geochemistry (2001) 45 (1): 235–260.
... in a closed system brings about the formation of a brine which, according to Eugster (1970) and Hardie and Eugster (1970) , may or may not be alkaline. The alkalinity is primarily a consequence of Ca ++ –HCO 3 − equilibria in solution which can control the precipitation of calcite. However, if one...
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Series: SEPM Special Publication
Published: 01 January 2009
DOI: 10.2110/sepmsp.093.269
EISBN: 9781565762978
... by Tertiary felsic and intermediate intrusives, which are the source of the mineralization (mainly silver) in the area. Tertiary volcanic rocks are overlain by sandstones and conglomerates assigned to the Baucarit Formation. This unit is in turn covered by Quaternary basaltic rocks. The Lower Cretaceous...
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Series: GSA Field Guides
Published: 04 September 2019
DOI: 10.1130/2019.0055(17)
EISBN: 9780813756554
... Campana, Laramide plutonic rocks are overlain by sandstone, siltstone, and conglomerate that are likely correlative to the early Miocene Báucarit Formation ( King, 1939 ). These sedimentary rocks are covered by volcanic rocks, including a distinctive basal black to brown vitrophyre and eutaxitic...
FIGURES | View All (88)
Journal Article
Journal: Geosphere
Published: 01 October 2013
Geosphere (2013) 9 (5): 1161–1200.
... sedimentation of the Baucarit Formation occurred from 24 Ma and was essentially over by ca. 12 Ma ( McDowell et al., 1997 ). The early extension we have documented in this work cannot be limited to the southern-central GEP. Early to Middle Miocene extension is well documented in eastern and central Sonora...
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Series: Geological Society, London, Special Publications
Published: 01 January 2013
DOI: 10.1144/SP385.8
EISBN: 9781862396494
... sediment and basalt-filled graben depressions (Baucarit Formation of King 1939 ) through Sonora. Basaltic to andesitic lavas ranging in age between 27 and 20 Ma are common toward the base of these rift basin successions ( McDowell et al. 1997 ; Paz-Moreno et al. 2003 ). The age of extension along...
FIGURES | View All (8)
Series: GSA Special Papers
Published: 01 January 2007
DOI: 10.1130/2007.2422(01)
... and sandstone that were initially defined as the Baucarit Formation ( King, 1939 ). Basaltic to andesitic lavas ranging in age between 27 and 20 Ma are common toward the base of these clastic successions ( McDowell et al., 1997 ; Paz-Moreno et al., 2003 ). The upper parts of these rift basin successions...