Oct 1, 2021 · In the Upper Cretaceous Niobrara Formation shale oil play, considerable oil fractions are produced directly from C 14+ bitumen in place (e.g., extractable organic matter). ). This paper provides new insights on the geochemistry and producibility of C 14+ bitumen by integrating the full process of generation, retention, conversion, expulsion, and production, as a whole, in the Niobrara shale ... In this study, we utilized subsurface core samples from Wolfcamp shale formation and outcrop core samples from Niobrara shale formation. The United States is the leading global hydrocarbon producer according to the U.S. Department of Energy report, and the shale formations in the United States have contributed significantly to this feat ( EIA ...It has been found that the formation stresses on both sides of fractured result in high penetration of proppant in the fracture surfaces, although proppant remains un-deformed. ... Prasad M. Fracturing fluid effects on Young’s modulus and embedment in the Niobrara formation. In: SPE Annual Technical Conference and Exhibition. Amsterdam, …Niobrara Formation in North Dakota is a gray to tan calcareous shale that was deposited in the shallow waters of the Cretaceous Interior Seaway around 80 million years ago. The Niobrara Formation can be found throughout the mid-continent of the U.S. and Canada and was named for exposures near the mouth of the Niobrara River in Knox County ...7 jan. 2013 ... The organic-rich formation consists mainly of shale and carbonate layers from a former marine environment. Although it's typically referred to ...These badlands are Kansas’ most dramatic Niobrara chalk formation. They provide unique and important habitat for many plants and wildlife. Native amphibians, reptiles and birds such as ferruginous hawks and cliff swallows live here. Little Jerusalem is also home to the largest population of Great Plains wild buckwheat.Niobrarasaurus (meaning "Niobrara lizard") is an extinct genus of nodosaurid ankylosaur which lived during the Cretaceous 87 to 82 million years ago. Its fossils were found in the Smoky Hill Chalk Member of the Niobrara Formation, in western Kansas, which would have been near the middle of Western Interior Sea during the Late Cretaceous. It was a …Based on the land-surface elevation and the Niobrara Formation DEM, the estimated thickness of the Quaternary-age alluvial deposits throughout the study area was mapped and showed a thinning of the Quaternary-age alluvial deposits to the north, approximately where the topographic high of the Niobrara Formation is located.Median dissolved solids, Se, and U concentrations in Niobrara-influenced inflows were 288%, 863%, and 155%, respectively, greater than median concentrations where the Niobrara Formation was absent. Identification of the Niobrara Formation as a disproportionate source for dissolved solids, Se, and U will allow for more targeted studies and ...The Pierre Shale is underlain by the calcareous Niobrara Formation and overlain by the Fox Hills Sandstone. Both contacts are conformable and transitional. The base of the Pierre is at the top of a persistent orange-weathering chalk bed that forms a hogback at the top of the Smoky Hill Shale Member of the Niobrara Formation.Niobrara Convocation . Discernment and Formation . Genealogical Research . About us . 79 congregations Including mission and parish churches . Covering 77,116 square miles with 5 full-time staff and 2 part-time . Largest Indigenious Ministry in North America . Serving the Lakota/Dakota/Nakota people .Abstract. Tylosaurus nepaeolicus (Cope 1874) is one of the least well known of the five species of mosasaurs that are recognized from the lower Smoky Hill Chalk Member (upper Coniacian) of the Niobrara Formation in western Kansas. In describing the type material, Cope stated that this species was one-third or less the size of T. proriger Cope 1869, a species that appeared during the Santonian ...Fault, fracture, and geomechanical analysis of the Niobrara Formation, Wattenberg field, Colorado: Download: 2017: Convers Gomez, Carlos: MS: Prediction of reservoir properties for geomechanical analysis using 3-D seismic data and rock physics modeling in the Vaca Muerta Formation, Neuquén Basin, Argentina:Hierosaurus (meaning "sacred lizard") is an extinct genus of nodosaurid ankylosaur which lived during the Late Cretaceous 87 to 82 million years ago. Its fossils were found in the Smoky Hill Chalk Member of the Niobrara Formation, in western Kansas, which would have been near the middle of the Western Interior Sea during the Late Cretaceous.In the Upper Cretaceous Niobrara Formation shale oil play, considerable oil fractions are produced directly from C 14+ bitumen in place (e.g., extractable organic matter). ). This paper provides new insights on the geochemistry and producibility of C 14+ bitumen by integrating the full process of generation, retention, conversion, expulsion, and production, as a whole, in the Niobrara shale ...ニオブララ累層（ニオブララるいそう）は、後期白亜紀のコニアシアン、サントニアン、カンパニアンにあたる8700 - 8200万年前に堆積した、北アメリカの地層。 2つの構造ユニットからなり、スモーキーヒルチョーク部層がフォートヘイズ石灰岩部層の上に横たわっている。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.SPE 184848 Optimizing Well Spacing and Well Performance in the Piceance Basin Niobrara Formation by N. Li, Black Hills Exploration and Production, et al. Maria A. Capello, ...Jul 7, 2023 · Assigned formation rank (Sage Breaks Shale) in northwest Carbon Co, WY, Greater Green River basin. Here unit overlies Frontier Formation and underlies Niobrara Formation. Assigned as lower member of Cody Shale in Natrona Co, WY, in Wind River basin and as upper member of Carlile Shale in Weston Co, WY, eastern Powder River basin. Niobrara Formation of Kansas to this species, and . subsequent interpretations of the anatom y and . relationships of the species were based primarily on the .Aug 17, 1992 · The Niobrara formation in the central Rocky Mountain region has been written about at length by several authors, most recently concerning Silo field near Cheyenne, Wyo. The Niobrara has proven an enigma to many explorationists, because while the promise is great (individual wells with cumulative production in excess of 1 million bbl), many ... Niobrara Formation symbiotic fish in inoceramid bivalves. p. 31-41 In S. Christopher Bennett (ed.), 1990 Society of Vertebrate Paleontology Niobrara Chalk excursion guidebook. Museum of Natural History and the Kansas Geological Survey, Lawrence, KS. Wiley, E.O. and Stewart, J.D. 1981.Reservoir characteristics and production of the Niobrara A interval at Redtail field: Weld County, Denver Basin, ColoradoIn contrast, the Niobrara-Codell formation was not a significant oil producer in the Powder River Basin before 2009, and oil production from this formation is entirely reliant on the application of current petroleum technology. Principal contributors: Philip Budzik, Jack Perrin.Assessment of the Mowry Shale and Niobrara Formation as Continuous Hydrocarbon Systems, Powder River Basin, Montana and Wyoming: Series title: Open-File Report: Series number: 2008-1367: DOI: 10.3133/ofr20081367: Edition: Version 1.0: Year Published: 2008: Language: ENGLISH: Publisher: U.S. Geological Survey: Contributing office(s) Central ...The Niobrara Shale formation is an oil and natural gas play spanning northeastern Colorado and portions of Kansas, Nebraska, and Wyoming. The shale in the formation ranges from 900 feet to 1,800 feet thick. The Niobrara region was formed approximately 145.5 million years to 65.5 million years ago by an inland sea that deposited layers of shale ... The Niobrara Formation in the Denver Basin is an unconventional oil and gas play composed of highly cyclic, alternating chalk and marl units. These units act as …Media in category "Niobrara Formation". The following 21 files are in this category, out of 21 total. Annual distribution of Niobrara production (14172897020).png 480 × 291; 11 KB. Annual report of the Regents - New York State Museum. (1908) (19340231256).jpg 2,586 × 716; 351 KB. Castle Rock, Kansas, on the Smoky Hill, 385 miles west of ...The vertebrate fauna of the Selma Formation of Alabama. Part 8: The fishes. — Fieldiana: Geology Memoirs3: 383–433. Google Scholar ... Fossil vertebrates of the Niobrara Formation in South Dakota. — Dakoterra5: 39–54. Google Scholar Meyer, R.L. 1974. Late Cretaceous elasmobranchs from the Mississippi and East Texas embayments of the ...8 sept. 2014 ... The Niobrara formation consists of a widespread deposit of interbedded marine chalk, limestone and organic rich shale. Primary lithology in the ...Locality map for TMP 95.87.01 from the Lower Cretaceous Wabiskaw Member of the Clearwater Formation, northeastern Alberta, Canada. The location of well AA 03-12-93-12W4, illustrated in Fig. 2 is ...Niobrara Formation . The Niobrara Formation (often called the Niobrara Chalk) was deposited during the Late Cretaceous about 80-88 million years ago. This unit is a chalk because it consists mostly of ancient marine plankton. Other marine fossils, including shells and fish bones also have been found in the Niobrara Formation. Tetrapods of Niobrara Formation. Tetrapods (Sauropsids) of the Niobrara formation, a geologic formation in the United States of America deposited 87-82 ...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).Niobrara Formation (Upper Cretaceous) at surface, covers < 0.1 % of this area. White to dark-gray argillaceous chalk, marl, and shale. Weathers yellow to orange. Contains thin, laterally continuous bentonite beds, chalky carbonaceous shale, minor sand, and small concretions. Thickness up to 150 ft (46 m).It is noticeable that Niobrara is laterally equivalent to the Mancos Shale (Sonnenberg, 2012)..... 31 Figure 2.12: (a): Image of the inland seaway 90 million years ago that made Niobrara to be formed. (b): Image of Niobrara Formation stratigraphy for northeastern Colorado (ColoradoIn 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.The formation also is easily identified on electric logs. Thickness--Thickness of the Niobrara Formation in Kansas ranges from 0 to 750 feet (Fig. 19). Figure 19--Isopachus map of Niobrara Formation in Kansas. Contour interval 50 feet. A larger version of this figure is available.Intellectual merit: The goal is to revise the Cretaceous time scale using new 40 Ar/ 39 Ar and U-Pb dates that anchor astronomical time scales from the Western Interior basin. New 40 Ar/ 39 Ar dates (n=34) have been acquired from Albian to Campanian representing 1000's of sanidine dates. Campanian U-Pb zircon dates, the first for the Late Cretaceous, are from 8 of the 40 Ar/ 39 Ar dated ashes.Here wide Q-range total neutron scattering was used to evaluate perdeuterated methane (CD 4) behavior at reservoir pressures (200-750 bar) and temperature (60 °C) in a sample at the late oil/wet gas thermal maturity stage from the Late Cretaceous Niobrara Formation, an active petroleum producing formation within the Denver-Julesburg Basin, U.S.You might have music files on a music CD that you would also like to have on an mp3 player. Or, you might have a collection of older CDs that you would like to convert into a more modern format. Either way, this process is easy.Although the Niobrara National Scenic River is comprised mostly of private land, the Fort Niobrara National Wildlife Refuge and Niobrara Valley Preserve protect much of the area. ... The escarpment on the north side of the valley is a good place to view the lateral exposure of the Ash Hollow Formation (6-11 million years old). Below that is the ...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.Seismic reservoir characterization of the Najmah Formation, Raudhatain Field, North Kuwait: Download: 2017: Alfataierge, Ahmed: MS: 3D Modeling and characterization of hydraulic fracture efficiency integrated with 4D/9C time-lapse seismic interpretations in the Niobrara Formation, Wattenberg Field, Denver Basin: Download: 2017: Avila Vizuett ... The Niobrara formation is over 500 feet thick and includes the Fort Hays Limestone at the base and the Smoky Hill Chalk at the top. Subsequent sediment was deposited during the Tertiary period that followed the Cretaceous. The best known formation of this period is the Ogallala, composed of sandy limy rocks often exposed as bluffs like those at ...NIOBRARA LIMESTONE. The Pierre shale is underlain by the Niobrara limestone, but this formation does not reach the surface in the portion of Nebraska west of the one hundred and third meridian. As, however, it would be reached by deep borings for artesian water, some of its characteristics should be pointed out. Its thickness is about 50 feet.Gas, oil, and water production data were compiled from selected wells in two tight gas reservoirs-the Codell-Niobrara interval, comprised of the Codell Sandstone Member of the Carlile Shale and the Niobrara Formation; and the Dakota J interval, comprised mostly of the Muddy (J) Sandstone of the Dakota Group; both intervals are of Cretaceous age-in the Wattenberg field in the Denver Basin of ColoraThe Niobrara Shale formation is an oil and natural gas play spanning northeastern Colorado and portions of Kansas, Nebraska, and Wyoming. The shale in the formation ranges from 900 feet to 1,800 feet thick. The Niobrara region was formed approximately 145.5 million years to 65.5 million years ago by an inland sea that deposited layers of shale ...The Niobrara Formation is a significant source of dissolved solids, Se and a moderate source of U along the studied reach of the Arkansas River. They revealed that during both the irrigation and non-irrigation seasons, concentrations of these constituents were substantially greater in Niobrara-influenced surface-water inflows.Shale and shallow chalk reservoirs of the Upper Cretaceous Niobrara formation house dry non-associated gas. Gas is stratigraphically trapped inside fine-grained, low permeability, and high porosity chalks. Depths range here range from 800' to 3500' and averages 500' in thickness. Oil is produced from fracturing the Niobrara and immediate ...A check-list of the fossil and prehistoric - Biodiversity Heritage LibraryWattenberg Field is the Niobrara Formation. Production in the Niobrara began with vertical wells in 1986, and horizontal drilling began in 2009. Since 2009, there has been extensive horizontal drilling throughout the Wattenberg Field. With such an increase in horizontal drilling in the Niobrara Formation, it is important to address the complex ...concentrations in Niobrara-influenced inflows were 288%, 863%, and 155%, respectively, greater than median concentrations where the Niobrara Formation was absent. IdentificationVertebrate Biostratigraphy of the Smoky Hill Chalk (Niobrara Formation) and the Sharon Springs Member (Pierre Shale). In: Harries, P.J. (eds) High-Resolution Approaches in …Removed from Niobrara formation and reassigned as uppermost member of Carlile shale on western side of Black Hills, northeastern WY and southeastern MT, Powder River and Williston basins. Consists of black-gray shale containing an abundance of gray-weathering septarian concretions. Thickness 195 ft, 6 mi north of Belle Fourche, Butte Co, SD ...Some of the most notable outcrops are the Monument Rocks of Western Kansas, that are comprised of the Smokey Hills Chalk of the larger Niobrara Formation. Monument Rocks, Kansas. Monument Rocks is a relatively …which was also recovered from the Niobrara Formation. The new species consists of an extended anterior spike-like rhachis and a greatly enlarged ventrally open posterior conus. Niobrarateuthis walkeri n. sp. inhabited the Niobrara Sea during late Coniacian to early Santonian time and was recovered from the basal Smoky Hill Chalk. INTRODUCTIONHydrocarbon source rocks in Wattenberg are the Skull Creek Shale, Graneros Shale, Greenhorn Limestone, Carlile Formation, Niobrara Formation, and Sharon Springs Member of the Pierre Shale. Total source rock thickness in Wattenberg is 200 to 250 ft (>2 wt.% TOC). The source beds are dominantly Type II with some Type III kerogen present.Seismic reservoir characterization of the Najmah Formation, Raudhatain Field, North Kuwait: Download: 2017: Alfataierge, Ahmed: MS: 3D Modeling and characterization of hydraulic fracture efficiency integrated with 4D/9C time-lapse seismic interpretations in the Niobrara Formation, Wattenberg Field, Denver Basin: Download: 2017: Avila Vizuett ...Niobrara Formation symbiotic fish in inoceramid bivalves. p. 31-41 In S. Christopher Bennett (ed.), 1990 Society of Vertebrate Paleontology Niobrara Chalk excursion guidebook. Museum of Natural History and the Kansas Geological Survey, Lawrence, KS. Wiley, E.O. and Stewart, J.D. 1981.Bubble-point pressure is defined as the pressure at which the first bubble of gas appears at a specific temperature. The phase diagram of typical black oils shows that the bubble-point pressure could be different at different temperatures. In the petroleum industry, if bubble-point pressure value is mentioned without reference to a particular ...The Smoky Hill Chalk Member of the Niobrara Chalk formation is a Cretaceous conservation Lagerstätte, or fossil rich geological formation, known primarily for its exceptionally well-preserved marine reptiles. It outcrops in parts of northwest Kansas, its most famous localities for fossils, and in southeastern Nebraska.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.Geology Site 2 - At this road cut, the Cretaceous Niobrara Formation is overlain by the Pembina Member, the lowermost member of the Pierre Shale in the area. These rocks were laid down in oceans that covered most of North Dakota about 84 million years ago. The Niobrara consists of light-gray to yellowish-tan, blocky, calcareous marl.Niobrara Formation. Light-colored limestone and gray to yellow speckled limy shale. State. Wyoming. Name. Niobrara Formation. Geologic age. Late Cretaceous.Niobrara Formation vertebrate stratigraphy, pages 19-30, In Bennett, S. C. (ed.), Niobrara Chalk Excursion Guidebook, The University of Kansas Museum of Natural History and the Kansas Geological Survey. Varricchio, D. J. 2001. Gut contents from a Cretaceous tyrannosaurid; Implications for theropod dinosaur digestive tracts.The Niobrara Formation (latest Turonian-Campanian) is the bedrock under much of northern . Cedar County and it crops out in many places. It is an entirely marine deposit consisting of a lower .The Smoky Hill Chalk Member of the Niobrara Chalk formation is a Cretaceous conservation Lagerstätte, or fossil rich geological formation, known primarily for its exceptionally well-preserved marine reptiles. Named for the Smoky Hill River, the Smoky Hill Chalk Member is the uppermost of the two structural units of the Niobrara Chalk. It is underlain by the Fort Hays Limestone Member; and the Pierre Shale overlies the Smoky Hill Chalk. The Smoky Hill Chalk outcrops in parts of nort…Seismic reservoir characterization of the Najmah Formation, Raudhatain Field, North Kuwait: Alfataierge: Ahmed: MS: 2017: Benson, Robert D. 3D modeling and characterization of hydraulic fracture efficiency integrated with 4D/9C time-lapse seismic interpretations in the Niobrara Formation, Wattenberg Field, Denver Basin: Andrade de Almeida ...Locality map for TMP 95.87.01 from the Lower Cretaceous Wabiskaw Member of the Clearwater Formation, northeastern Alberta, Canada. The location of well AA 03-12-93-12W4, illustrated in Fig. 2 is ...The stratigraphic and paleogeographic distribution of the suspension-feeding pachycormiform fish Bonnerichthys is reviewed. Fossils attributable to this genus are known from the Western Interior Seaway (Niobrara Formation of Kansas, Sharon Springs Formation of Kansas, Nebraska, and North Dakota, DeGrey Formation of South …535-41 for Section 6, Township 7 North, Range 60 West, 6th P.M., for production of oil, gas and associated hydrocarbons from the Niobrara Formation; and 2) ...2.22 Niobrara Shale. 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 earth's surface at depths of 3000-14,000. Companies drill these wells vertically and even ...Niobrara is mainly a liquids-rich play, namely oil and natural gas liquids. The resources are found anywhere between 3,000 feet and 14,000 feet, with most of the oil located about 7,000-8,000 feet ...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).Jul 7, 2023 · Name applied as the basal member of the Niobrara Formation to a 40 ft thick gray hard limestone above the Carlile Shale and beneath the Smoky Hill Shale Member of the Niobrara. Occurs in the Pueblo area, Pueblo Co, CO in the Denver basin as 40 layers of limestone, 1-26 inches thick, separated by gray calcareous shale. 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 contact between the Carlile Shale and the overlying Niobrara Formation is marked by an unconformity in much of the outcrop area, but where an unconformity is not discernible, the boundary is typically placed at the first resistant, fine-grained limestone bed at the base of the Niobrara Formation. GalleryThe Niobrara Formation records life at the heyday of this seaway, from 87 to 82 million years ago between the Coniacian and the Campanian Stages of the Late Cretaceous. Prior to the Niobrara was the rather poorer Dakota Formation and after that comes the Pierre Shale. Contemporaries to Niobrara include the Mooreville Chalk of Alabama. The pore space inside the matrix of a shale formation is also a nanofluidic system, because its characteristic size is smaller than or equal to 100 nm, but it includes a complex structure. ... M., Derkowski, A., McCarty, D.K.: Compositional controls on mudrock pore-size distribution: an example from Niobrara Formation. SPE Paper 160141 ...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).Tununk Member of the Mancos Shale below the capping Ferron Sandstone Member. West side of the San Rafael Swell, Emery County, Utah. The Mancos Shale or Mancos Group is a Late Cretaceous (Upper Cretaceous) geologic formation of the Western United States . The Mancos Shale was first described by Cross and Purington in 1899 [1] and was named for ...The environments suggested by the rocks include the deep sea, sandy beaches, and coast swamps. Names applied to the various formations are (from oldest to youngest): the Benton Shale, Niobrara Limestone, Pierre Shale, Fox Hills Sandstone, and the Laramie Formation. Together these formations total over 10,000 feet of sediment.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. Name applied as the basal member of the Niobrara Formation to a 40 ft thick gray hard limestone above the Carlile Shale and beneath the Smoky Hill Shale Member of the Niobrara. Occurs in the Pueblo area, Pueblo Co, CO in the Denver basin as 40 layers of limestone, 1-26 inches thick, separated by gray calcareous shale.SPE 184848 Optimizing Well Spacing and Well Performance in the Piceance Basin Niobrara Formation by N. Li, Black Hills Exploration and Production, et al. Maria A. Capello, ...The Niobrara Shale 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 earth's surface at depths of 3,000 - 14,000 feet. Notes. The Niobrara Formation , also called the Niobrara Chalk, is a geologic formation in North America that ...The Cretaceous Niobrara Formation and Codell Member of the Carlile Formation are the top producing unconventional zones in the Denver-Julesburg Basin. The basin encompasses eastern and northeastern Colorado, southeastern Wyoming, southwestern Nebraska, and far western Kansas. The Codell member of the Carlile Formation is a tight sandstone 4 to ...The ages are determined by anchoring the long eccentricity bandpass from spectral analysis of the Niobrara Formation to radioisotopic ages with the lowest uncertainty proximal to the boundary, and adding or subtracting time by parsing the 405 k.y. cycles. The new stage boundary age determinations are: 89.75 ± 0.38 Ma for the Turonian-Coniacian ...Telegraph Creek Formation. †Warm Creek Shale of Collier and Cathcart (1922, p. 172) and Knechtel (1959, p. 740-741) in north-central Montana abandoned. Rocks reallocated to (ascending) Belle Fourche Shale, Greenhorn Formation, Carlile Shale, Niobrara Formation, and Telegraph Creek Formation.Niobrara Formation (Upper Cretaceous) at surface, covers < 0.1 % of this area. White to da, In addition, Stewart (1990) noted that the species also occurs in stratigraph, The Mancos/Niobrara is an emerging horizontal play in the Piceance Basin. Successful Piceance Mancos/Niobrara wells , The smallest video file formats are WMV, FLV, MPEG-4 and RealVideo. The, Is the upper member of Niobrara Formation above Fort Hays Limestone Member of , The Niobrara Formation was deposited during the latter transgression from the Late Tu, Eagle Ford Shale, Delaware Basin, Niobrara Formation, Utica Shale, and Marcellus, Horizontal drilling and artificial stimulation have , The boundary between the Carlile and Niobrara formations is an ang, NIOBRARA LIMESTONE. The Pierre shale is underlain by the Niobrara lim, The marine shale, chalk, marl, and chalky limestone of th, The Niobrara Formation was deposited in deep, open-marin, Niobrara Region +44 -40 +4 Indicated change in oil productio, Abstract. The Mancos-Niobrara formation in western Colorado, The ages are determined by anchoring the long eccentr, Niobrara Formation from an area once covered by overburden estimat, The stratigraphy of the Niobrara Formation was described in early., The burial history of this fractured Niobrara Limest.