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  • 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
  • China Shale Gas & Liquids - Sichuan Basin
    ...one (Lu et al., 2020). The commercial gas production is typically from the lower part of Wufeng-Longmaxi Formation that is dominated by black siliceous muds After the maximum burial in the Jurassic-Cretaceous stage, the Wufeng-Longmaxi shale has experienced multiple tectonic uplifts,
    7 KB (985 words) - 18:54, 4 December 2023
  • Paleontology
    ...Concretion22.jpg|thumb|400px|A broken concretion with fossils inside; Late Cretaceous Pierre shale, near Ekalaka, Montana. Photograph taken by Mark A. Wilson (De ...nic-walled_microfossils)#Spores_and_pollen|pollen]] is no older than Early Cretaceous. Megafossils, large benthic foraminifers, and calcareous algae can be found
    17 KB (2,331 words) - 20:11, 10 August 2016
  • Kingfisher field
    .... In this alternate scenario, some of the structures expressed at the Base Cretaceous unconformity (BCU) can be envisaged as being related to synrift [[fault]] g ...ssic]] [[prerift]] sequence of mudstones and evaporites overlain by a thin Lower [[Jurassic]] interval and a thicker interval of Middle Jurassic [[Pentland
    16 KB (2,358 words) - 16:28, 11 January 2024
  • Silurian Qusaiba shales
    ...2000>Lüning, S., J. Craig, D. K. Loydell, P. Storch, and B. Fitches, 2000, Lower Silurian “hot shales” in North Africa and Arabia: Regional distribution ...tal2014 />). The reservoirs extend from the Middle [[Jurassic]] to Upper [[Cretaceous]] [[carbonate]]s (the major reservoir being the [[Arab Formation]]). Region
    18 KB (2,569 words) - 22:50, 8 January 2019
  • Thelma field
    file:M115CH11FG02.jpg|{{figure number|2}}Thelma area: Base Cretaceous-depth structure map. ...resents final abandonment of the fan system and, in conjunction with Lower Cretaceous shales, provides the ultimate top seal and principal [[source rock]]. Middl
    17 KB (2,614 words) - 19:14, 17 January 2022
  • Techniques for enhancing seismic facies analysis
    .... A 6.4-km, 32-m-deep valley network incised in the Muddy Formation (Lower Cretaceous) is difficult to see on the original data display. However, by compressing
    5 KB (720 words) - 18:51, 4 February 2022
  • The Neuquén Basin: Sequence Stratigraphy of Vaca Muerta Formation
    ...9.</ref> and Weaver<ref>Weaver, C., 1931, Paleontology of the Jurassic and Cretaceous of West Central Argentina: Memoir University of Washington 1, 469 p.</ref> File:2.png|{{figure number|2}}Jurassic and Lower Cretaceous lithostratigraphy of the Neuquén Basin. Based on Spalletti & Veiga.<ref na
    16 KB (2,490 words) - 15:32, 8 January 2021
  • Cuba: Geologic history
    ...s (including remarkable [[Paleogene]] [[orbitoids]]), the gigantic Upper [[Cretaceous]] [[rudistids]], the spectacular [[limestone]] Mogotes of Pinar del Rio, th ...Geomagnetic_reversals reversing polarity] to the southwest during the Late Cretaceous. Cuba's geology suggests that the subduction was continuously north dipping
    30 KB (4,263 words) - 22:00, 23 January 2019
  • Jordan petroleum geology
    ...Ch07Fig1.jpg|Figure 1]], [[:file:M106Ch07Fig02.jpg|Figure 2]]) and the mid-Cretaceous sourced and reservoired Hamzeh oil field in central northern Jordan. ...north Oman: GeoArabia, v. 4, no. 2, p. 157–180.</ref> In Jordan, this mid-Cretaceous source rock level is thermally immature over large areas, except where deep
    16 KB (2,310 words) - 15:13, 19 January 2017
  • Basin-centered gas systems: evaluation and exploration strategies
    ...lar manner, gas production from multiple sandstone reservoirs in the Upper Cretaceous Williams Fork Formation in the Piceance basin of western Colorado is commin ...ager log from a 1750 ft (533 m)-long horizontally drilled leg in the Upper Cretaceous Frontier Formation.<ref name=Krystinikandlorenz_2000>Krystinik, L. F., and
    34 KB (5,070 words) - 15:11, 23 August 2016

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