Niobrara formation.

The pterosaurs of the Niobrara Formation. The Earth Scientist 11(1): 22-25. BENNETT SC. 2009. [Abstract] The pectoral girdle of Pterodac-tylus antiquus —evolving toward th e advanced condition.The Cretaceous-age Niobrara Chalk in western Kansas was deposited in a massive inland sea that ran north to south across west-central North America about 80 million years ago. Monument Rocks and Castle Rock, two sets of chalk spires that rise above the plain in Gove County, are composed of chalk formed from the enormous amount of ooze that ...The Niobrara play in the Powder River Basin (PRB) and Trabing Field reflects a continuous-type accumulation with structural deformation and complex stratigraphy reflected at all scales. The field was previously studied in order to understand the petroleum potential of the Frontier Formation. The work done prior to this study have failed to focus on understanding the field-scale structural and ...A recent U.S. Geological Survey (USGS) oil and gas assessment of the Powder River Basin , Wyoming and Montana, identified the Upper Cretaceous Mowry Shale and Niobrara Formation as the primary hydrocarbon sources for Cretaceous conventional and unconventional reservoirs.The Niobrara Formation of southwestern Saskatchewan can be subdivided into: 1) an upper member comprising chalky calcareous shale (First White Specks Member ( ...

May 11, 2021 · In the Pierre Shale Sandstones play, oil and gas is produced from the Sussex and Shannon sandstones. These reservoirs reach 4,500’ to 5000’ in depth and range from 3’- 50’ in thickness. and include seven accumulations. Shale and shallow chalk reservoirs of the Upper Cretaceous Niobrara formation house dry non-associated gas.

Black shales within the Niobrara Formation, some of which are rich in coccoliths* and fecal pellets, are the major hydrocarbon source rocks; shaly beds that overlie the chalky or sandy reservoir intervals are seals (Longman and others, 1998). Organic richness (TOC) in source intervals ranges from less than 1 percent in the siliciclastic-rich ...

The Fort Hays limestone is the lower member of the Niobrara formation (Moore, Frye, and Jewett, 1944, p. 152) of Cretaceous age. The Fort Hays member is recognized in the field primarily by its thick massive beds and small amount of shale. Chalky shale is the major constituent of the overlying Smoky Hill chalk.Go back in time at the largest Niobrara Chalk formation in Kansas. This mile-long stretch of 100-foot-tall spires and cliffs opened to the public as Little Jerusalem Badlands State Park in October 2019. ... Niobrara Chalk Formations The iconic Niobrara chalk formations in Little Jerusalem Badlands State Park were formed 85 million years ago ...The flow pattern, dissolution characteristics, and other microscale parameters are analyzed. Afterward, a micro-CT image of Niobrara formation is investigated with various Damköhler and Péclet numbers in Sect. 3.2 (Prodanovic et al. 2016). The interplay of pore structure, acid transport, and reaction rate is discussed in detail as well.The Niobrara shale formation (Denver-Julesburg Basin, Colorado) is a shale rock formation located in Northeast Colorado. Northwest Kansas, Southwest Nebraska, and Southeast Wyoming. Oil and natural gas can be found deep below the surface of the Earth at depths of three thousand to fourteen thousand. The Niobrara varies in thickness from about 60 metres (200 feet) to more than 270 metres (890 feet) and consists of chalks, shales, limestones, and many thin layers of bentonite (altered volcanic ash deposits that appear like soapy clays). Pteranodon skeleton and restoration of wings. The Niobrara marks the withdrawal of the Cretaceous seas ...

The goal of this field-based research project is to establish a tight oil field laboratory in the Powder River Basin (PRB). The field laboratory will be used to characterize and overcome the technical challenges of developing two large, emerging unconventional/shale oil formations, the Mowry Shale, and the Belle Fourche Shale, with the challenging tight sands of the Frontier and Niobrara ...

Pierre overlies Niobrara Formation and underlies Fox Hills Sandstone. To west, name Pierre replaced by (ascending) Steele Shale (and its Ardmore Bentonite-newly assigned--in lower part, Sussex and Shannon Sandstone Members which are separated by, overlain and underlain by unnamed parts of Steele), Mesaverde Formation (and its Parkman Sandstone ...

The Dakota is a sedimentary geologic unit name of formation and group rank in Midwestern North America. The Dakota units are generally composed of sandstones, mudstones, clays, and shales deposited in the Mid-Cretaceous opening of the Western Interior Seaway. The usage of the name Dakota for this particular Albian-Cenomanian strata is exceptionally widespread; from British Columbia and Alberta ...In today’s digital age, the ability to convert files from one format to another has become increasingly important. One such conversion that is commonly needed is converting JPG images to PDF format.Niobrara (Colorado and Wyoming), and the Permian Basin (West Texas and Southeast New Mexico) [1]. Table S1 summarizes the general physicochemical parameters of PW quality from primary UD plays in the U.S. Fig. S1 shows the temporal change of PW quality in Marcellus formation in Pennsylvania and Niobrara formation in Colorado.Nannofossils of the North American Late Cretaceous Western Interior Seaway have been extensively studied, but these investigations have primarily focused on the diverse communities of the Niobrara and Greenhorn sea-level highstands. We lack a firm understanding of the nature of early nannofossil communities from the initial stages of the transgression, and of how the diverse assemblages of the ...The Niobrara formation spans much of underground Wyoming and Colorado. Until recently, it wasn't a viable oil target in southeast Wyoming. One exception was the Silo field north of Cheyenne, where ...The Cretaceous Niobrara Formation is one of the latest unconventional exploration targets in North America. In this paper, an overall Type-II marine organofacies with some variability is present ...

The occurrence of Hesperornis in the Late Cretaceous Niobrara Formation of South Dakota. Proceedings of the South Dakota Academy of Science 71:95-97. Martin, J.E. and Varner, D. W. 1992. The highest stratigraphic occurrence of the fossil bird Baptornis. Proceedings of the South Dakota Academy of Science 71:167 (abstract).The Niobrara Formation was deposited in a shallow marine environment along a sea that extended between the present day Arctic Ocean and Gulf of Mexico (Diffendal and Voorhies, 1994), and is ...The Niobrara Formation (Upper Cretaceous) in the northern Great Plains is being studied by the U.S. Geological Survey because it includes potential low-permeability reservoirs for natural gas. Subsurface investi­ gations of the Niobrara indicate that three major chalk tongues are found within the unit.The Niobrara Formation consists of up to 750 feet of chalk. The outcrop belt trends southwest from north-central Kansas. The Fort Hays Member is a light-gray to very light-yellow chalk; it is massively bedded and has thin, light to dark-gray, chalky-clay partings. The Fort Hays Member forms up to the basal 90 feet of the Niobrara Formation.The Niobrara Formation / ˌnaɪ.əˈbrærə /, also called the Niobrara Chalk, is a geologic formation in North America that was deposited between 87 and 82 million years ago during the Coniacian, Santonian, and Campanian stages of the Late Cretaceous.NIOBRARA FORMATION Organic-rich shales with some carbonates Guam Near Ft. Collins, CO SHANNON, SUSSEX, PARKMAN, AND TEAPOT FORMATIONS Marine bar/marginal marine sandstones within shales Virginia Coast Shannon Fm Near Edgerton, WY BOGGY CREEK FIELD • Niobrara County, ...

The Silo Field is located in the northern part of the Denver basin. Production is from the fractured Niobrara Formation at depths ranging from 7600 to 8500 ft. (2318 to 2593 m). Cumulative production from 40 vertical and 68 horizontal wells at Silo is in excess of 10.4 million barrels of oil and 8.9 billion cubic feet gas.reservoir is the Niobrara Formation. It is a mixed carbonate/chalk and mudrock /marlstone interval, approximately 300 feet (90m) thick (Figure 3). Underneath the Niobrara is the Codell. The Niobrara and Codell reservoir intervals within Wattenberg may contain recoverable reserves of 2 billion barrels oil equivalent. Improving the

Oil and Gas Assessment Unit (AU), and the area where depth to Niobrara Formation is more than 8,000 feet..... 43 36. Map of the Powder River Basin Province showing Niobrara Formation . potential sweet spots derived from published lineament and lineamentEffects of climate, tectonics, and sea-level changes on rhythmic bedding patterns in the Niobrara Formation (Upper Cretaceous), U.S. Western Interior Geology. Regional isotopic variations in the Fort Hays Member of the Niobrara Formation, United States Western Interior: Primary signals and diagenetic overprinting in a Cretaceous pelagic ...It is clear that the remarkably pronounced approximately 1.2-Myr rhythm in the primary stratigraphy of the Niobrara Formation is a consequence of the reinforcement of a 1.2-Myr obliquity forcing ...ABSTRACT. This paper presents geologic and reservoir parameters of the Niobrara Formation in Weld County, Colorado. With the use of computer generated contour maps, it is possible to predict favorable areas of profitable Niobrara pay. This predictability is further enhanced when combined with Scanning Electron Microscopy (SEM) analysis and historical production analysis.The SEM results show ...Raw materials are mined from the Niobrara Formation and Pierre Shale and made into cement at the Cemex plant near Lyons, Colorado. Sand and gravel for construction are a major mineral resource in the Denver Basin. The Lyons Formation provides flagstone from quarries in Boulder and Larimer counties, along the western edge of the basin. GoldThese plots ity regional seal over the Niobrara Formation within the TPS indicate that the majority of the samples are Type-II, oil- (Finn and Johnson, Chapter 14, this CD–ROM, their plate 1). prone kerogen with some mixing from Type-III, gas-prone In addition, hard, brittle reservoir zones within the Niobrara 10 Petroleum Systems and ...Western Minnesota The Cretaceous rocks in southwestern Minnesota can be correlated with the better-known regional stratigraphy in South Dakota of the Dakota Formation, Graneros Shale, Greenhorn Limestone, Carlile Shale, Niobrara Formation and Pierre Shale (Fig. 3). Figure 3.period, particularly for horizonal drilling of the Niobrara Shale formation. The Mowry Shale is an organic-rich play and indicates a promising potential based on other shale play analogs. Exploration of the Mowry was delayed due to the 2015 downturn, therefore limited production data is available today. Niobrara Formation (Late Cretaceous) at surface, covers 1 % of this area. Argillaceous chalk, limestone and shale. Chalk is medium gray to white, interbedded with thin layers of chalky shale; contains many fossil clams, oysters, and formanifera. Limestone is light gray to medium gray and yellowish gray, interbedded with medium-gray chalky shale ...

Its type locality is 1 mile W of Bogue, which is in a Coniacian/Santonian offshore horizon in the Niobrara Formation of Kansas. Pteranodon (Occidentalia) eatoni: YPM 1179, a skull. Its type locality is near Castle Rock, which is in a Coniacian/Santonian offshore chalk in the Niobrara Formation of Kansas. Ecology: volant piscivore

The Late Cretaceous (89-82 Ma) Niobrara Formation is the primary target for unconventional horizontal well activity in the Denver Basin. With an abundance of horizontal activity

Sonnenberg, S. A., 2016, Stratigraphic architecture of the Niobrara Formation, Wattenberg Field Area, Colorado: Presented at the Unconventional Resources Technology Conference, URTeC-2435024, doi: 10.15530/urtec-2016-URTeC 2435024. Crossref Google ScholarMay 11, 2021 · In the Pierre Shale Sandstones play, oil and gas is produced from the Sussex and Shannon sandstones. These reservoirs reach 4,500’ to 5000’ in depth and range from 3’- 50’ in thickness. and include seven accumulations. Shale and shallow chalk reservoirs of the Upper Cretaceous Niobrara formation house dry non-associated gas. Corrected on September 17, 2014: Earlier version incorrectly referenced well completion in the Ft. Hays member of the Niobrara The Niobrara formation, deposited between 87 and 82 million years ago during the Late Cretaceous is composed of two structural units, the Smoky Hill Chalk Member and the Fort Hays Limestone Member which is overlain by the Smoky Hill Chalk Member. To date, the main focus ofThe Niobrara Formation (Upper Cretaceous) in the northern Great Plains is being studied by the U.S. Geological Survey because it includes potential low-permeability reservoirs for natural gas. Subsurface investi­ gations of the Niobrara indicate that three major chalk tongues are found within the unit.The Upper Cretaceous Niobrara Formation and its stratigraphic equivalents contain good to excellent source rocks capable of generating significant volumes of hydrocarbons where the formation has ...A new, unusually well-preserved juvenile specimen of Ctenochelys stenoporus from the Niobrara Formation is described. The skull has come apart at its sutures and all bones of the braincase and ear ...10.1190/urtec2013-015 Valuing Seismic at the Drilling Program Level for Sweet Spot Identification in Unconventional Resource 10.1190/urtec2013-016 Geologic Controls on Oil Production from the Niobrara Formation, Silo Field, Laramie County, Wyoming 10.1190/urtec2013-017 Niobrara Sweet Spots, Basement Geology, and Sea …Its fossils specimens were found in the Niobrara Formation and Pierre Shale Formation in Kansas, Alabama, Nebraska, Wyoming, and South Dakota. What was a Pteranodon's habitat? The Pteranodon lived near the ocean or sea. The area where their fossils were found was covered by a large inland sea. Considering their diet they nested …

Valentine Formation —the most resistant rock exposed in the middle Niobrara River Valley. The rapids span the river's channel at a light constriction and they are approximately 120 ft or 37 mThe Niobrara Formation is one of the most extensive rock units in the Great Plains, and was deposited between 87 and 82 million years ago during the Late Cretaceous Period. [57] Michael J. Everhart, “Revisions to the Biostratigraphy of the Mosasauridae (Squamata) in the Smoky Hill Chalk Member of the Niobrara Chalk (Late Cretaceous) of Kansas ... The Niobrara Formation at the Wattenberg Field in the Denver-Julesburg basin is a low permeability carbonate reservoir (Figure 1). It continuously exists throughout the entire field. The Niobrara is a sequence of interbedded carbonate and marine shale. The gross thickness varies approximately from 250 to 350 feet.Inoceramids are an extinct group of bivalves (clams) that grew to enormous sizes (several feet across) during the Cretaceous. They were well-adapted to many different marine environments from shallow to deep waters. In Nebraska, they are very common in the Greenhorn Limestone and the Niobrara Formation.Instagram:https://instagram. university of kansas psychology phdcoastland mall shoe storesku clinical research centereric hamilton The Niobrara formation chalks were deposited during the last major transgression of the western interior Cretaceous sea, which extended from the Gulf of Mexico to the Arctic Ocean. The lower member of the Niobrara is the Fort Hays, which is 40 to 85 ft (12 to 25 m) thick. The upper member is the Smoky Hill, which averages 600 ft (180 m) (Fig. 2).The portion that lies within the Denver-Julesburg (DJ) Basin is a combination shale/marl/chalk/sandstone formation that lies at depths 5,500′-8,500′, and is comprised of three separate zones, or... wfl adopt me valueswhere are peanuts from originally The Niobrara Formation ranges in lithology from limestone to chalk to a slightly calcareous shale of Late Cretaceous age that was deposited in a shallow epicontinental sea during Late Cretaceous time (Shurr and Rice, 1987). The Niobrara outcrops in minor localities in the northeastern part of the state. The Niobrara is underlain by the Carlile ... marcus mcduffie Inoceramids are an extinct group of bivalves (clams) that grew to enormous sizes (several feet across) during the Cretaceous. They were well-adapted to many different marine environments from shallow to deep waters. In Nebraska, they are very common in the Greenhorn Limestone and the Niobrara Formation.Protostega is an extinct genus of turtle that lived in North America during the Late Cretaceous. Protostega is the second largest turtle that ever existed, being 3 meters (9.8 feet) long, only beat by Archelon and longer than Stupendemys. Protostega's shell lacked ossification, which helped bring the animal down in weight and streamline it for open …