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  • | Lower [[Tertiary]] (centered on [[Eocene]], ~50-40 Ma) | [[Upper Cretaceous]] (centered on [[Turonian]], ~85-95 Ma)
    5 KB (633 words) - 20:02, 18 February 2022
  • ...nd: #00CCFF" | [[Mesozoic]] || rowspan="2" style="background: #71BC78" | [[Cretaceous]] || style="background: #71BC78"| Upper | style="background: #71BC78" | Lower
    3 KB (354 words) - 18:34, 14 March 2019
  • ...s in thickness from 150 to 250 ft and is a significant source rock for the Cretaceous reservoirs in the Powder River Basin.
    4 KB (677 words) - 17:14, 22 December 2023
  • The paleowind regimes show a monsoonal pattern during the Jurassic and Cretaceous, the main winds blew to the NE during the Southern Hemisphere winter and to
    3 KB (432 words) - 17:54, 22 March 2019
  • ...nd facies architecture of eolian-fluvial strata of the Late Jurassic–Early Cretaceous Guará Formation, Southern Brazil: Sedimentology, v. 52, p. 1323-1341.</ref ...tu Formation (Lower Cretaceous), and underlying Sanga do Cabral Formation (Lower Triassic; [[:file:Guara_02.jpg|Figure 2]]).
    6 KB (856 words) - 19:51, 2 April 2019
  • ...s (including remarkable [[Paleogene]] [[orbitoid]]s), the gigantic Upper [[Cretaceous]] [[rudistid]]s, the spectacular [[limestone]] Mogotes of Pinar del Rio, th ...[[plate]]s. As a consequence, Cuba exposes sequences of Upper Jurassic and Cretaceous nonvolcanic pelagic sediments that are rare, if not unique, in the Caribbea
    13 KB (1,851 words) - 20:43, 7 July 2016
  • ...Piombino, 1994, Giant proximal foreland basin non-marine wedge trap: Lower Cretaceous Cutbank Sandstone, Montana, in J. C. Dolson, M. L. Hendricks, and W. A. Wes ...example of calibrating unconformity evidence from cores to logs. The Lower Cretaceous Cutbank Sandstone unconformably overlies the Jurassic Swift Formation. A ma
    6 KB (862 words) - 15:20, 4 February 2022
  • The Upper Cretaceous Tuscaloosa marine shale (TMS) continues to be a minor and largely undevelop ...ied that the maximum flooding surface occurs in the middle of the TMS; the lower portion of the TMS is associated with transgression and maximum flooding wh
    7 KB (1,007 words) - 21:15, 3 March 2022
  • ...e basins, the product of rifting of Africa from South America in the Early Cretaceous, contain several source units representing depositional settings ranging fr ...sulfur, higher vanadium-nickel, less negative δ<sup>13</sup>C ratios, and lower wax contents (see Figure 8-49). Sterane concentrations are high, as are con
    8 KB (1,086 words) - 22:16, 15 February 2022
  • ...re1MancosCommRept.jpg|300px|thumb|{{figure number|1}}Type logs through the Cretaceous section of the San Juan Basin, showing the principle stratigraphic units. N ...[[:file:Figure1MancosCommRept.jpg|Figure 1]] shows a type log through the Cretaceous section of the San Juan Basin.
    6 KB (985 words) - 20:14, 2 June 2021
  • ...rine environments. Marine diatoms range from [[Upper Jurassic]] or [[Lower Cretaceous]] to [[Holocene]] and are particularly useful for age and environmental det ...]; they commonly occur with diatoms. Silicoflagellates range in age from [[Cretaceous]] to [[Holocene]]. Although not as common as diatoms, they are useful time
    5 KB (626 words) - 15:18, 31 January 2022
  • ...ractured fault zones (these major fractures oriented parallel to the Lower Cretaceous shelf edge and are linked to underlying tectonic structures), such as the l ...dated the assessment on undiscovered, recoverable oil and gas in the Upper Cretaceous system of the Gulf Coast, including the Austin Chalk and the coequal Tokio
    8 KB (1,200 words) - 21:22, 3 March 2022
  • ...logic reports confirming this assumption. Nuclear detonations conducted in Cretaceous rocks in the San Juan and Piceance basins of New Mexico and Colorado were u ...n River basin-a developing giant gas supply from deep, overpressured Upper Cretaceous sandstones]: AAPG Bulletin, v. 65, p. 1078-1098.</ref> in the Great Divide
    9 KB (1,373 words) - 13:40, 10 March 2015
  • ...Based on geochemical evidence, the Upper Jurassic (Kimmeridgian) to Lower Cretaceous source rock is the Mandal Formation. A positive oil-source rock correlation ...shows the vertical migration path from the active source rock through the Cretaceous rocks and horizontally along the basal Paleogene reservoir rocks until it [
    9 KB (1,184 words) - 18:46, 3 March 2016
  • * [[Cretaceous]] * [[Lower Cretaceous]]
    5 KB (543 words) - 23:45, 8 January 2015
  • ...on of undiscovered conventional and continuous oil and gas resources—Upper Cretaceous Austin Chalk, U.S. Gulf Coast: U.S. Geological Survey Scientific Investigat ...t al., 2020, Assessment of undiscovered oil and gas resources in the Upper Cretaceous Austin Chalk and Tokio and Eutaw Formations, U.S. Gulf Coast, 2019: U.S. Ge
    6 KB (846 words) - 20:58, 6 April 2021
  • | Colville basin, Alaska || High || [[Cretaceous]] || Direct ? || Popov et al.<ref name=Popovetal_2001>Popov, M. A., V. F. N | Alberta basin, Canada || High || Cretaceous || Direct || Masters<ref name=Masters_1979>Masters, J. A., 1979, [http://ar
    27 KB (3,753 words) - 14:53, 12 March 2019
  • ...olson, J. C., and D. S. Muller, 1994, Stratigraphic evolution of the Lower Cretaceous Dakota Group, Western Interior, USA, in M. V. Caputo, J. A. Peterson, and K The Lower Cretaceous Cutbank Sandstone is the largest valley-fill trap in the Rocky Mountains (1
    7 KB (977 words) - 20:39, 4 February 2022
  • ...genesis, and the formation of abnormally pressured gas compartments in the Cretaceous of the Greater Green River basin: A geochemical model, ''in'' B. Strook and ...ata/specpubs/mem67/ch12/ch12.htm Anomalously pressured gas compartments in Cretaceous rocks of the Laramide basins of Wyoming: A new class of hydrocarbon accumul
    25 KB (3,445 words) - 19:01, 14 March 2016
  • ...y found in these basins. Organic-rich shales are mainly distributed in the Lower Permian Fengcheng Formation in the Mahu Sag, the Middle Permian Lucaogou Fo ...rmation, Lucaogou Formation, and Wutonggou Formation), Triassic, Jurassic, Cretaceous, Tertiary, and Quaternary from the bottom to the top<ref name=Kng2012 />. T
    6 KB (850 words) - 17:56, 20 December 2023

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