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Gran Canon Formation

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Journal Article
Journal: GSA Bulletin
Published: 01 May 1984
GSA Bulletin (1984) 95 (5): 513-521.
... sedimentary sequences on Isla Cedros record a complex history of explosive island-arc volcanism (Gran Canon Formation), arc-continent collision (Coloradito Formation), and renewal of magmatic arc volcanism (Eugenia Formation). Geological Society of America 1984 ...
Series: GCSSEPM
Published: 01 January 2014
DOI: 10.5724/gcs.14.33.0432
EISBN: 978-0-9836097-9-0
...-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...
Journal Article
Published: 01 March 2007
South African Journal of Geology (2007) 110 (1): 55-58.
... ). The metamorphism and tectonics of the Pre-Cape formations in the post-Ntingwe thrust-belt, Southwest Zululand, Natal . Transactions of the Geological Society of South Africa , 62 , 257 – 322 . Matthews , P.E. ( 1972 ). Possible Precambrian obduction and plate tectonics in Southeastern Africa...
FIGURES
Series: GSA Special Papers
Published: 01 January 2007
DOI: 10.1130/2007.2427(11)
..., which further supports the initial findings by the second author. Figure 7. Canonical variate scores from the upper five lithological units of the Pierre Shale Group in the Big Bend area. The unknown Weid sample plots in the upper DeGrey Formation. Sm/Yb, Tb/Sy, Pr/Yb, and Gd/Yb ratios were most...
Series: GSA Special Papers
Published: 01 January 2007
DOI: 10.1130/2007.2427(05)
.... The Sm/Dy, Tb/Er, Tb/Yb, and Sm/Yb ratios were most important for accurate classification of these units. Classification error was reduced by >90%. Canonical variant scores for these four units (Fig. 7) indicate that samples from the three Sharon Springs units and the Verendrye Formation can...
Series: AAPG Hedberg Series
Published: 01 January 2004
DOI: 10.1306/1025701H13126
EISBN: 9781629810461
... controlled the hydrocarbon prospectivity of the area. The lower Fahdene formation (Albian–Vraconian) gradually overlies the deep-sea clastics of M’Cherga formation and is conformably overlain by the Cenomanian upper Fahdene shales. It covers the northern and eastern area of Tunisia (onshore, Gulf...
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Journal Article
Journal: Geophysics
Published: 15 December 2017
Geophysics (2018) 83 (1): R31-R42.
... model. Figure  1 displays the conditional independence structure defined by the geophysical models. Indeed, m is a canonical variable for d ; i.e., ( κ , r ) and d are conditionally independent given m . We observe that the effect of κ propagates directly...
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Journal Article
Journal: Geosphere
Published: 01 October 2012
Geosphere (2012) 8 (5): 1020-1041.
... reflect bedrock competence ( Mackley and Pederson, 2004 ; c.f. the Desolation/Gray canyons case, Roberson and Pederson, 2001) and/or transient incision (c.f. Kirby et al., 2007 ; Karlstrom et al., 2008 ; Cook et al., 2009 ; Pelletier, 2010 ). Discussions of hypotheses regarding knickpoint formation...
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Journal Article
Journal: GSA Bulletin
Published: 01 October 2003
GSA Bulletin (2003) 115 (10): 1155-1172.
...C.R. Twidale Abstract Fifty years after its publication, Lester King's Canons of Landscape Evolution is reviewed and is considered in light of subsequent trends and actual developments. Some of his ideas, such as the role of scarp recession and the antiquity of some surfaces, remain current. His...
Journal Article
Journal: AAPG Bulletin
Published: 01 March 1969
AAPG Bulletin (1969) 53 (3): 568-590.
... and Reboul) Hipophylloceras nera (Paulcke) Maorites tenuicostatus (Marshall) (found by A. Cañón, ENAP, oral commun.) The following species were found in the Santa Ana Beds and the Río Blanco Formation: Diplomoceras notabile (Whiteaves) Maorites densicostatus (Kilian and Reboul...
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Journal Article
Published: 01 March 2013
Journal of Sedimentary Research (2013) 83 (3): 258-276.
...Augusto N. Varela; Lucía E. Gómez-Peral; Sebastián Richiano; Daniel G. Poiré A bstract : The Mata Amarilla Formation marks the onset of the foreland stage of the Austral basin, which is composed of mostly nonmarine and littoral siliciclastic sediments, thus providing an opportunity to study...
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Journal Article
Journal: AAPG Bulletin
Published: 15 May 2019
AAPG Bulletin (2019) 103 (5): 1045-1069.
..., or Aptian–Albian volcaniclastic sedimentary rocks correlative with the Alisitos Formation. We recognize four major depositional sequences within the basin that are related to the regional geology. The basal Albian–Turonian sequence 1 represents the initiation of fore-arc basin sedimentation, contains...
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Journal Article
Published: 27 July 2016
Geological Magazine (2017) 154 (5): 1022-1036.
... adjacent to the Drake Passage. The aim of this paper is to integrate dinoflagellate cyst data from three sections of the southwestern Austral Basin (Río Turbio Formation) to propose a zonation scheme, which can be applied to other southwestern Atlantic Ocean sites. Assemblages of organic walled...
Journal Article
Published: 01 February 2013
American Mineralogist (2013) 98 (2-3): 444-462.
... in a late regional hydrothermal circulation event along the Cobequid-Chedabucto fault (320–315 Ma) promoted Ti mobility and the formation of TiO 2 minerals and probably of aeschynite-(Y). This mineralogical diversity, in addition to the complex geological history of the pluton, provides a unique opportunity...
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Journal Article
Published: 24 January 2014
Geological Magazine (2014) 151 (6): 1034-1050.
... and the Sanandaj–Sirjan Zone of western Iran. During Palaeogene time deposition of the red beds was caused by renewed shortening in the thrust sheets overlying the Arabian margin with uplift of radiolarites (Qulqula Formation), resulting in an influx of radiolarian debris in addition to continuing ophiolitic...
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Journal Article
Published: 01 July 2012
Journal of Sedimentary Research (2012) 82 (7): 482-498.
.... Through a multidisciplinary approach, including sandstone petrology and geochemistry of the clastic and volcanoclastic sediments, we reconstruct the unroofing history of the Rhodopian orogen and characterize the formation and the evolution of the western portions of the Thrace basin, in Greece...
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Journal Article
Published: 01 March 2016
American Mineralogist (2016) 101 (3): 627-643.
... that hybridization times can be shorter than or comparable to thermal, solidification, and replenishment timescales; thus, formation of hybridized or nearly hybridized magmas is one anticipated outcome of mixing. The machinery of thermodynamics can be used to compute the hybrid magma state. An exploratory model...
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Journal Article
Journal: AAPG Bulletin
Published: 01 April 1998
AAPG Bulletin (1998) 82 (4): 596-636.
... in the full development of the Malvinas foredeep and the formation of compressional structures in the foreland. The foredeep basin was replenished by a westerly derived offlapping siliciclastic wedge of Oligocene–Miocene age. Noncommercial hydrocarbon discoveries in 5 of the 17 wells drilled in the basin...
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Journal Article
Published: 03 June 2019
Journal of Sedimentary Research (2019) 89 (6): 479-486.
..., C.J., 2002 , Tectonic history of a Jurassic backarc-basin sequence (the Gran Cañon Formation, Cedros Island, Mexico), based on compositional modes of tuffaceous deposits : Geological Society of America, Bulletin , v . 114 , p . 515 – 527...
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Journal Article
Published: 25 November 2013
Journal of the Geological Society (2014) 171 (2): 269-280.
... in Mineralogy and Geochemistry , 53 , 469 – 500 . Critelli S. Marsaglia K.M. Busby C.J. 2002 . Tectonic history of a Jurassic backarc-basin sequence (the Gran Cañon Formation, Cedros Island, Mexico), based on compositional modes of tuffaceous deposits . Geological Society of America...
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