Search results

Jump to navigation Jump to search

  • Siliceous microfossils
    ...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
  • Austin Chalk, onshore U.S. Gulf Coast
    ...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
  • Basin-centered gas systems: historical development and classification
    ...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
  • Mandal-Ekofisk(!) petroleum system
    ...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
  • Molyneux:sandbox
    * [[Cretaceous]] * [[Lower Cretaceous]]
    5 KB (543 words) - 23:45, 8 January 2015
  • Austin Chalk, Tokio, and Eutaw Formations, U.S. Onshore Gulf Coast (USGS)
    ...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
  • Basin-centered gas systems: global distribution
    | 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
  • Mapping unconformities
    ...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
  • Basin-centered gas systems: examples
    ...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
  • China Shale Gas & Liquids - Songliao and Junggar Basins
    ...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
  • Parana-Etendeka CBP
    ...ory. It's characterized by a fissural volcanism that occurred in the Early Cretaceous before the Gondwana rift and opening of South Atlantic Ocean. About 90% of ...contents: The first group occurs dominantly in southern areas and has TiO2 lower than 2 wt.%, the second group has high TiO2 (>2%) and is dominant in the no
    6 KB (922 words) - 19:45, 11 April 2019
  • Tethys region
    ...the southeastern part of the Levantine Basin, the Mango well tested Lower Cretaceous sands (10,000 bo/d); these sands are likely charged from Jurassic source ro Although Jurassic and Cretaceous source rocks are very important for the Tethyan region, there are other reg
    23 KB (3,325 words) - 14:52, 1 August 2016
  • Basin-centered gas systems: elements and processes
    ...ontained in coal beds and carbonaceous shale in several coal-bearing Upper Cretaceous intervals. The relative contribution of gas to basin-centered gas accumulat ...An assessment of gas resources in low-permeability sandstones of the Upper Cretaceous Mesaverde Group, Piceance basin, Colorado]: U.S. Geological Survey Open-Fil
    20 KB (2,949 words) - 18:24, 6 April 2016
  • Basin-centered gas systems: development
    ...s of some typical western interior basins in non-marine Tertiary and Upper Cretaceous source rocks and the occurrence of oil and gas in the west central U.S.:Roc ...An assessment of gas resources in low-permeability sandstones of the Upper Cretaceous Mesaverde Group, Piceance basin, Colorado]: U.S. Geological Survey Open-Fil
    34 KB (4,772 words) - 14:44, 12 March 2019
  • Iraq petroleum geology
    ...rocks of the Upper Cretaceous above the Mishrif Formation and in the Lower Cretaceous below the Zubair Formation. Smaller reserves occur in other Neogene and Pal ...ldbelt. Lesser amounts of oil and gas are derived from: 1) Upper and Lower Cretaceous oil-prone source rocks within the Zagros foldbelt; 2) Triassic oil-prone so
    78 KB (7,926 words) - 16:25, 30 January 2017
  • East Breaks source rock
    ...c development of the Texas margin: a new integrated cross-section from the Cretaceous shelf edge to the Perdido fold belt: Selected Papers, Gulf Coast Section SE ...[[crude oil]] in the upper Paleocene to lower Eocene Wilcox Formation. If lower Tertiary Wilcox equivalent or uppermost Jurassic mudstones are the source f
    7 KB (1,080 words) - 17:44, 23 March 2022
  • Braided fluvial reservoirs
    ...Courtesy of the [http://www.earthobservatory.nasa.gov NASA Web site]. The lower figure was modified from Cant.<ref name=Cant_1982>Cant, D. J., 1982, [http: ...of reservoirs originating in low and high sinuosity channel systems, Lower Cretaceous Travis Peak Formation, east Texas, U.S.A., in C. P. North and D. J. Prosser
    13 KB (1,859 words) - 21:29, 12 March 2019
  • Petrophysical analysis of lithofacies
    ...parasequences at relative highstand. Microporous dolomites comprising the lower portions of the parasequences have poor reservoir characteristics, despite ...from [[sequence stratigraphy]] alone. Within channel systems of the Lower Cretaceous Mannville Group (Alberta, Canada), fluids distributions may be complex. Hig
    6 KB (763 words) - 18:53, 4 February 2022
  • Basin-centered gas systems: gas resources
    ...essment of in-place gas resources in low-permeability Upper Cretaceous and lower Tertiary sandstone reservoirs, Wind River basin, Wyoming: U.S. Geological S
    9 KB (1,242 words) - 15:47, 11 March 2015
  • Quartz
    Apatite: Normally lower birefringence, has a higher relief and is uniaxial (-). ...ce similar to quartz, but barite has slightly higher relief and gypsum has lower relief; both gypsum and barite have strong cleavage.
    8 KB (1,127 words) - 20:21, 23 January 2019

View (previous 20 | next 20) (20 | 50 | 100 | 250 | 500)

Retrieved from "https://wiki.aapg.org/Special:Search"