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Curtis Formation

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Journal Article
Journal: GSA Bulletin
Published: 01 April 1986
GSA Bulletin (1986) 97 (4): 381-387.
...R. D. KREISA; R. J. MOILA Abstract The Curtis Formation in central Utah contains a rich suite of sedimentary structures that provides persuasive evidence for a tidal mode of origin. The most diagnostic of these structures are sigmoidal tidal bundles: sandstone packages deposited during one dominant...
Journal Article
Published: 01 May 1986
Journal of Sedimentary Research (1986) 56 (3): 401-411.
...Terence B. Eschner; Gary Kocurek Abstract The basal marine sandstone of the Upper Jurassic Curtis Formation of northeastern Utah was deposited in a shallow, tide-dominated sea during marine transgression across the Entrada eolian sand sea. Entrada dunes within the study area are interpreted to have...
Series: AAPG Special Publication
Published: 01 January 1991
DOI: 10.1306/SP548
EISBN: 9781629811161
Journal Article
Published: 01 June 1981
Journal of Sedimentary Research (1981) 51 (2): 579-595.
... stratification types are found to compose some ancient cross-strata, and their occurrence confirms the eolian interpretations of pans of the Entrada (Jurassic), Navajo (Triassic-Jurassic), and Galesville (Cambrian) Formations, as well as revealing emergent islands in the Curtis Formation (Jurassic), previously...
Journal Article
Published: 19 June 2004
Canadian Journal of Earth Sciences (2004) 41 (6): 757-763.
...Kenneth D. Rose; Jaelyn J. Eberle; Malcolm C. McKenna Abstract A new genus and species of palaeanodont, Arcticanodon dawsonae , is based on a single lower jaw fragment from lower Eocene (Wasatchian) strata of the Margaret Formation, Eureka Sound Group, on central Ellesmere Island, Nunavut. The new...
Published: 01 December 1985
DOI: 10.5724/gcs.85.04.0263
EISBN: 978-1-944966-03-4
..., and grain-size sequences suggestive of gravity transported/deposited sediments, e.g. , turbidites and debris flows, that could be submarine channel deposits. A typical cored interval from this depositional setting has conglomerate at the base, containing rip-up clasts derived from underlying formations...
FIGURES | View All (11)
Published: 01 December 1987
DOI: 10.5724/gcs.87.08.0052
EISBN: 978-1-944966-07-2
... is used, a given sequence of events is the same. Events in a single basin ( e.g. , Gulf of Mexico, Gulf Coast) can be related to each other by their positions in the sequence of events. Local stratigraphic nomenclature, such as stage names, formations, subdivisions into lower-middle-upper, etc...
Published: 01 December 1981
DOI: 10.5724/gcs.81.02.0027
EISBN: 978-1-944966-01-0
Series: Geological Society, London, Special Publications
Published: 01 January 2004
DOI: 10.1144/GSL.SP.2004.239.01.09
EISBN: 9781862394872
... matched to this task (e.g. seismic and well log data). Wood & Curtis (2004 ) demonstrate how quantitative geological information that is independent of the remotely sensed data, called prior information , can be used to constrain probabilistically the architecture of the geology some distance from...
FIGURES | View All (6)
Journal Article
Journal: AAPG Bulletin
Published: 01 June 2014
AAPG Bulletin (2014) 98 (6): 1091-1109.
...Michael D. Lewan; Michael D. Lewan; Michael D. Lewan; Michael P. Dolan; Michael P. Dolan; Michael P. Dolan; John B. Curtis; John B. Curtis; John B. Curtis ABSTRACT The amount of oil that maturing source rocks expel is expressed as their expulsion efficiency, which is usually stated in milligrams...
FIGURES | View All (6)
Journal Article
Journal: Paleobiology
Published: 30 May 2018
Paleobiology (2018) 44 (3): 511-529.
... molars of tubular formations, composed mainly of calcite. These may be root casts, although there is no evidence of root marking on bones or teeth. No manganese or any other postdepositional mineral staining is observed. 21 03 2018 This investigation has benefited from projects CGL2007...
FIGURES | View All (6)
Published: 01 January 1990
DOI: 10.5724/gcs.90.09.0173
EISBN: 978-1-944966-08-9
... are source rocks. Assumptions regarding the source rock potential of the thermally immature shales derive from the early timing of trap formation and filling. Geochemical requirements for a source rock demand late migration from the source rock after many thousands of feet of burial. Based on geothermal...
Journal Article
Published: 01 June 2010
Journal of Environmental and Engineering Geophysics (2010) 15 (2): 65-75.
... of these gradients are presumed to be faults or other types of hydrogeological boundaries. The bedrock has no consistent resistivity signature. The shallow bedrock horst near the center of the SkyTEM survey area appears electrically resistive, a characteristic that would be compatible with a carbonate formation...
FIGURES | View All (10)
Journal Article
Published: 01 December 2004
Bulletin of the Seismological Society of America (2004) 94 (6B): S107-S131.
... (top) and phase (bottom) of the 2D model of Figure A2 presented in pseudosection format to illustrate how well the observed and calculated values compare. Figure 3. Three hypocenter cross sections, perpendicular to the Denali fault, showing the distribution of aftershocks from the Denali...
FIGURES | View All (18)
Journal Article
Journal: Geophysics
Published: 07 September 2006
Geophysics (2006) 71 (5): G249-G260.
... is not always appropriate in environments with sharp resistivity boundaries between different geological formations. A 2D, sharp-boundary inversion similar to what was developed for the magnetotelluric (MT) problem by Smith et al. (1999) was recently developed for geoelectric data ( Auken and Christiansen...
FIGURES | View All (8)
Journal Article
Published: 01 September 1997
Journal of Sedimentary Research (1997) 67 (5): 871-878.
...Joe H. S. Macquaker; Charles D. Curtis; Max L. Coleman Abstract Siliciclastic muds and mudstones commonly contain 5% iron. At deposition, most of this iron is in the oxidized form, Fe III , whereas in ancient mudstones it is predominantly in the reduced form, Fe II . In most fine-grained...
Journal Article
Journal: Economic Geology
Published: 01 February 1983
Economic Geology (1983) 78 (1): 26-56.
...Lewis B. Gustafson; Laurence W. Curtis Abstract Diagenetic lithification of Kombolgie sandstones followed by a metasomatic event which produced veining and replacement. Metasomatism was controlled by brecciation and bedding within the sandstones. The high-grade uranium ores are interpreted...
Journal Article
Journal: Economic Geology
Published: 01 December 1978
Economic Geology (1978) 73 (8): 1635-1654.
...S. S. Adams; H. S. Curtis; P. L. Hafen; H. Salek-Nejad Abstract The Jackpile-Paguate uranium deposit of northwestern New Mexico occurs in the fluvial Jackpile sandstone of the Jurassic Morrison Formation. The uranium ore is present as matrix impregnations of uranium and epigenetic carbonaceous...
Journal Article
Journal: Economic Geology
Published: 01 May 1968
Economic Geology (1968) 63 (3): 257-270.
...C. D. Curtis; D. A. Spears Abstract An attempt to combine laboratory and field data on recent sedimentary environments to produce mineral stability diagrams suggests that two distinct situations may be recognized. In depositional water, only ferric compounds can be truly stable. In interstitial...
Journal Article
Published: 01 March 1955
Journal of Paleontology (1955) 29 (2): 263-282.
...Neville Mackay Curtis GeoRef, Copyright 2004, American Geological Institute. Reference includes data from Bibliography and Index of North American Geology, U. S. Geological Survey, Reston, VA, United States 1955 ...