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El Rito Formation

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Journal Article
Journal: GSA Bulletin
Published: 01 December 1981
GSA Bulletin (1981) 92 (12): 968–975.
...MARK J. LOGSDON Abstract The Eocene(?) El Rito Formation in north-central New Mexico is the basal Tertiary unit of the Chama basin and the northwestern Española basin. Deposition of the El Rito Formation occurred in the final stages of the Laramide orogeny. The formation is predominantly...
Journal Article
Journal: GSA Bulletin
Published: 01 December 1981
GSA Bulletin (1981) 92 (12_Part_II): 2308–2317.
Journal Article
Journal: AAPG Bulletin
Published: 01 March 1981
AAPG Bulletin (1981) 65 (3): 563.
...Mark J. Logsdon ABSTRACT The Eocene El Rito Formation of north-central New Mexico is the basal Tertiary unit of the Chama basin and the north-western Espanola basin. Deposition of the El Rito occurred in the final stages of the Laramide orogeny. The formation is an alluvial-fan deposit, showing two...
Series: GSA Special Papers
Published: 01 April 2013
DOI: 10.1130/2013.2494(06)
.... on the western part of the Abiquiu embayment. The Abiquiu area is located along the margin of the Colorado Plateau–Rio Grande rift and lies within the Abiquiu embayment, a shallow, early extensional basin of the Rio Grande rift. Cenozoic rocks include the Eocene El Rito Formation, Oligocene Ritito Conglomerate...
Journal Article
Journal: Geophysics
Published: 01 March 1991
Geophysics (1991) 56 (3): 340–353.
... no. 2 well, 10 km south of the transect, this wedge is likely middle Tertiary lacustrine deposits (NMOCD, 1986). The great thickness of lake deposits may represent a major lacustrine facies of the Eocene Galisteo and El Rito formations, exposed around the southern, southwestern, and northwestern margins...
Journal Article
Journal: GSA Bulletin
Published: 01 December 1981
GSA Bulletin (1981) 92 (12_Part_II): 2268–2307.
.... Basin, Cub Mountain, El Rito, Espinaso, Galisteo, Love Ranch, McRae, Orejon, Palm Park, and San Jose. Although the Blanca Basin, Cub Mountain, El Rito, Espinaso, Love Ranch, McRae, and Orejon Formations are not demonstrably Eocene, their assignment, to that epoch by various workers, past and present...
Journal Article
Journal: GSA Bulletin
Published: 01 September 1990
GSA Bulletin (1990) 102 (9): 1280–1296.
...): a single amagmatic sedimentary basin (El Rito-Galisteo) trended northwest-southeast with Laramide basement uplifts on three sides; (2) early to late Oligocene (37-28 Ma): intermediate magmatism with volcaniclastic aprons derived from the San Juan and Ortiz-Cerrillos volcanic fields, and residual Laramide...
Series: GCSSEPM, GCSSEPM
Published: 01 January 2014
DOI: 10.5724/gcs.14.33.0432
EISBN: 978-0-9836097-9-7
...-horizontal Permian-Triassic units in its footwall, hanging wall strata of the Cañones fault zone dips in two directions: west-dipping Jurassic Entrada, Todilto, and Morrison formations; and south-east-dipping Eocene El Rito, Oligocene Ritito, and Oligocene-Miocene Abiquiu formations. Tilted Jurassic strata...
Series: GSA Special Papers
Published: 01 April 2013
DOI: 10.1130/2013.2494(09)
... and Vallito Members of the Chamita Formation and the Chama–El Rito Member of the Tesuque Formation, in descending stratigraphic order. New and published geochemical results from the Guaje well field and from other surface and subsurface mafic and intermediate lava flows within the Pajarito Plateau suggest...
Journal Article
Journal: Economic Geology
Published: 01 September 2007
Economic Geology (2007) 102 (6): 1021–1045.
... that the direct melting of a shallow subducting slab with the production of adakitic magmas is responsible for the formation of giant porphyry-type ore deposits in northern Chile. This idea has been debated extensively ( Oyarzun et al., 2002 ; Rabbia et al., 2002 ; Richards, 2002 ; Reich el al., 2003 ). F...
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Journal Article
Journal: Economic Geology
Published: 01 November 2005
Economic Geology (2005) 100 (7): 1287–1312.
...), clarifies some of the thermodynamic controls that may make such transport possible, and suggests a model for the formation of porphyry and epithermal deposits that involves precipitation of the ores from vapor or a vapor-derived fluid. Analyses of vapor (generally >90% water) released from volcanic...
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Journal Article
Published: 01 July 2012
Journal of Paleontology (2012) 86 (4): 659–668.
... and Pernambuco states. The Santana Formation, attributed to the Aptian–?lower Albian age of the basin, is subdivided into two members, Crato and Romualdo, which bear an abundant fossil record of plant fragments, arthropods and vertebrates, especially 3D-preserved fishes. The present study focuses on the taxonomy...
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Journal Article
Published: 01 July 2007
Reviews in Mineralogy and Geochemistry (2007) 65 (1): 363–387.
... comes from veins and breccias documenting the impact of fluids in breaking rocks and creating fracture permeability for ore formation, as a result of the fluid expansion that is commonly associated with phase separation between melts and multiple fluids. Chemical evidence of fluid–fluid interaction...
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Journal Article
Journal: AAPG Bulletin
Published: 01 November 1960
AAPG Bulletin (1960) 44 (11): 1749–1774.
... of Rio Pueblo several miles west of Tres Ritos. South of Rio Pueblo the Espiritu Santo formation and Mississippian rocks are absent from large areas because of pre-Pennsylvanian or early Pennsylvanian erosion. In foothills of the southeastern part of the Sangre de Cristo Mountains, the Espiritu Santo...
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Journal Article
Published: 01 January 2011
Reviews in Mineralogy and Geochemistry (2011) 73 (1): 513–578.
..., and the PGE. Allowing for some variability within any given ore deposit type, each of these types is unique in terms of the range of pressure and temperature of ore deposit formation, tectonic setting, and the compositional type(s) of parental causative magma. However, most porphyry-type ore deposits, layered...
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Journal Article
Journal: Economic Geology
Published: 01 September 2017
Economic Geology (2017) 112 (6): 1441–1460.
... interaction together with simultaneous cooling controlled the formation of gangue and ore minerals at Bismark. At El Mochito, models using fluid inclusion compositional data suggested a magmatic fluid origin, whereas the involvement of basinal brines was ruled out ( Samson et al., 2008 ; Williams-Johns et al...
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Journal Article
Journal: Geosphere
Published: 14 August 2019
Geosphere (2019) 15 (5): 1641–1664.
... possibilities for the path of the paleoriver. It may have turned south and acted as a sedimentary bypass system through the area of the Galisteo–El Rito Basin, which, prior to the latest Paleocene to early Eocene, had not yet begun to accumulate sediment ( Lucas et al., 1997 ). Alternatively, the Tsosie...
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Journal Article
Published: 01 November 2002
Journal of Sedimentary Research (2002) 72 (6): 836–848.
... ). Deformation of pre-Tertiary rock along the Cañones fault and southwestward thickening of syn-Laramide strata of the El Rito Formation ( Fig. 2 ) across the fault imply that this structure, and possibly intrabasinal faults, were west-vergent oblique-reverse faults during the Laramide deformation ( Moore 2000...
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Journal Article
Journal: Geosphere
Published: 16 February 2018
Geosphere (2018) 14 (2): 785–811.
... ; Cather, 2004 ). In the Four Corners region, these uplifts are typically in the form of broad monoclines (e.g., Hogback monocline) or high-angle, fault-bounded basement blocks (e.g., Nacimiento uplift). Six distinct Laramide-age basins (San Juan, Raton, Galisteo–El Rito, Baca, Carthage–La Joya...
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Journal Article
Journal: GSA Bulletin
Published: 11 May 2017
GSA Bulletin (2017) 129 (9-10): 1209–1226.
... in the Love Ranch Basin. The remaining four Laramide basins located north of the Love Ranch Basin are Eocene in age, based exclusively on terrestrial vertebrate fossils. The oldest of the late Laramide basins is the Galisteo–El Rito Basin. In the Galisteo part of the basin, the lower of two formations...
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