Pierre shale.

Methane seeps in the Upper Cretaceous Pierre Shale of the U.S. Western interior contain a rich fauna including ammonites (Baculites, Hoploscaphites, Didymoceras, Placenticeras, Solenoceras ...The Pierre Shale and equivalent rocks of Late Cretaceous age consist in the east-central Dakotas of several hundred feet of offshore-marine shale and minor marl; in west-central Montana near the sediment source the equivalents of the Pierre Shale consist of several thousand feet of volcanic-rich and mostly nonmarine sediments; and in the area be...Reuters. Updated Oct 23, 2023, 4:02 PM IST. To buy Hess, Chevron is offering $171 for every Hess share, implying a premium of about 4.9% to the share's last close. Chevron Corp said on …Pierre Shale In this area, the Pierre shale is a loose muddy shale, punctuated outcrops of hard rock. The terrain is quite barren. Water and sun protection is essential on hot days. Baculite Ammonoid This is typical of the baculite fragments which give this area its name. Baculite Mesa These hard rock formations poke up through the muddy shale ...The Williams Fork Formation is a Campanian (Edmontonian) geologic formation of the Mesaverde Group in Colorado. Dinosaur remains are among the fossils that have been recovered from the formation, most notably Pentaceratops sternbergii,.Other fossils found in the formation are the ammonite Lewyites, neosuchian crocodylomorphs, and the mammals Glasbius and Meniscoessus collomensis.

In Pierre shale and Bakken cores with thicknesses ranging from 0.65 to 5 mm, permeabilities were basically independent of flow rate, in agreement with expectations from the Darcy equation. Saline brine spontaneously entered into oil-saturated Pierre cores, yielding recovery values up to 41% of original oil in place (OOIP). ...For more information, you can contact the Friends group at: Friends of NDGS Paleo. Trissa Ford - President. Katy Brooke - Secretary/Treasurer. PO Box 164. Mandan, ND 58554. United States. Phone: 701-516-8665. [email protected] a broad sense, "nautiloid" refers to a major cephalopod subclass or collection of subclasses ( Nautiloidea sensu lato ). Nautiloids are typically considered one of three main groups of cephalopods, along with the extinct ammonoids (ammonites) and living coleoids (such as squid, octopus, and kin). While ammonoids and coleoids are monophyletic ...

Late Cretaceous marine turtles are rare in Canada, but specimens are known from three formations: Toxochelys latiremis Cope and Protostega sp. from the Pierre Shale, Pembina Member (lower ...—Chevron Corporation's CFO Pierre Breber said in a statement ... Finance - Chevron Chevron announces buy of Hess for $53 billion in new oil megadeal days after Exxon …

Pierre Shale (generally a smectitic clay shale in this area). In the area of concern, Pierre Shale beds approximately 2.1 km thick dip steeply eastward (greater than 45°) as a result of regional uplift and, except where locally covered by alluvial deposits, crop out for at least 2.4 km in an easterlylower Pierre Shale. The other is within the Pierre Shale just below the Hygiene Sandstone member of the Pierre. Note seismic line does show vertical exageration which aids in visualizing these low offset structures. Location of seismic horizon "SH" (Figure 11) shown. .....24 Figure 3.2.04-Nov-2021 ... The Pierre Shale is of marine origin and was deposited in the Western Interior Seaway. It is correlative with other marine shales that occur ...In Pierre shale and Bakken cores with thicknesses ranging from 0.65 to 5 mm, permeabilities were basically independent of flow rate, in agreement with expectations from the Darcy equation. Saline brine spontaneously entered into oil-saturated Pierre cores, yielding recovery values up to 41% of original oil in place (OOIP). ...The results show that removal of around 4-5 wt% of cementation material results in 43% reduction in Pierre I shale shear strength compared to the non-etched shale exposed to sodium chloride ...

A polycotylid about 3m in length. also present in the Pierre Shale Formation: Brimosaurus: B. grandis: Kansas: Fort Hays Limestone: A nomen dubium. Styxosaurus: S. snowii: Smoky Hill Chalk: 85-81.5 Ma ago: A large elasmosaurid about 12m in length, also present in the Pierre Shale Formation Elasmosaurus "E." sternbergi

Attenuation measurements were made near Limon, Colorado, where the Pierre shale is unusually uniform from depths of less than 100 ft to approximately 4,000 ft. Particle velocity wave forms were measured at distances up to 750 ft from explosive and mechanical sources. Explosives gave a well-defined compressional pulse which was observed along ...

Brownish, rugged ridge in the middle ground (just above the foreground trees) is the Windy Gap Volcanic Member deposited on the eroded Pierre Shale. Stair-step topography in the distance reflects sedimentary architecture of the Middle Park Formation marked by interbedded fluvial sandstone-siltstone sequences capped by persistent conglomerate zones.Member of the Pierre Shale. Gives detailed reference locality [section] of the Pierre Shale at Red Bird, sec 13, T38N, R62W and sec 18, T38N, R61W, Niobrara Co, WY in the Powder River basin. Consists of hard, platy-weathering gray shale that contains a few layers of red-weathering siderite concretions and several thin beds of nonswelling bentonite.part of the region, and the Pierre shale of Cretaceous age, which underlies the Ogallala formation throughout the region, crops out in the more deeply incised valleys. Many parts of the upland area are underlain by dune sand, and the principal valleys are underlain by alluvium of Quaternary age. The Ogallala formation contains thick beds of ...Attenuation measurements were made near Limon, Colorado, where the Pierre shale is unusually uniform from depths of less than 100 ft to approximately 4,000 ft. Particle velocity wave forms were measured at distances up to 750 ft from explosive and mechanical sources. Explosives gave a well‐defined compressional pulse which was observed along vertical and horizontal travel paths. A weight ...This is the Pierre Shale, which underlies much of the city of Colorado Springs and troubles engineering geologists with its expanding and contracting clay, which can crack foundations and heave roads. Two additional Cretaceous layers are on display along Popes Bluffs in Ute Valley Park. The Fox Hills Sandstone consists of beach sand resembling ...

The Pierre Shale at the base of the exposed succession is a marine unit. The White River Group weathers and erodes relatively quickly into a rugged landscape with steep slopes, little to no soil, and little to no vegetation. These are the characteristics of badlands topography - "bad" referring to its unsuitability for farming. ...Where Niobrara is a formation (in central and eastern parts of basin), it conformably (in places unconformably) overlies Sage Breaks Member of Carlile Shale and conformably underlies Gammon Ferruginous Member of either Pierre Shale (in eastern part of basin) or Steele Shale (in central part of basin).Baptornis ("diving bird") is a genus of flightless, aquatic birds from the Late Cretaceous, some 87-80 million years ago (roughly mid-Coniacian to mid-Campanian faunal stages).The fossils of Baptornis advenus, the type species, were discovered in Kansas, which at its time was mostly covered by the Western Interior Seaway, a shallow shelf sea.It is now known …Archelon (from Greek αρχελών meaning ruler turtle) is a genus of extinct sea turtle, the largest that has ever been documented, and the second largest chelonian after Stupendemys. The first specimen of Archelon (YPM 3000) was collected from the Pierre Shale of South Dakota by Dr. G.R. Wieland in 1895 and described by him the following year (Wieland, 1896). The largest Archelon fossil ...Pierre Shale (SDKp;0) Pierre Shale Blue-gray to dark-gray, fissile to blocky shale with persistent beds of bentonite, black organic shale, and light-brown chalky shale. Contains minor sandstone, conglomerate, and abundant carbonate and ferruginous concretions. Thickness up to 1,000 ft (305 m).

SEM photograph of Pierre type I shale after exposure to a silicate-based drilling fluid. The picture shows a silicate-"cake" of 10 μm thickness on the shale's surface. This cake prevents mud filtrate invasion and pressure penetration, and at the same time acts as a leaky membrane with high efficiency (typically 30-80%) that enables ...

Claystone samples of the Denver and Pierre Shale Formations obtained near Denver, Colorado, USA were used in the study. A moist tamping system was used to obtain "identical" soil specimens.The Fort Morgan 7.5′ quadrangle is located on the semiarid plains of northeastern Colorado, along the South Platte River corridor where the river has incised into Upper Cretaceous Pierre Shale. The Pierre Shale is largely covered by surficial deposits that formed from alluvial, eolian, and hillslope processes operating in concert with ...This paper presents a comprehensive methodology for analysing the compression and consolidation behaviour of shales. An apparatus was designed to perform oedometric high-pressure tests by applying a maximum vertical total stress of 100 MPa and simultaneously controlling the pore water pressure of the specimen. An analytical method was formulated to analyse the shale consolidation behaviour ...Tests under constant consolidation stress (20 MPa) and compression perpendicular to bedding. (c) Stress-strain curves for Pierre-1 shale (USA) deformed with different orientations (θ) of ...Formations like the Marcellus Shale, the Rhinestreet Shale, Barnett Shale, Haynesville Shale, Woodford Shale, Pierre Shale, and Bakken Shale all onlap unconformities, suggesting that many black shales were deposited during a distal basin margin transgression onto a surface that may have been eroded during a previous sea level lowstand. 1.1.The Pierre Shale, which is divided into identifiable sedimentary beds called members, also contains abundant fossils of numerous species of ammonites, ancestors of the chambered nautilus. The fossils, when combined with geologic mapping, allow the various exposed sections of the Pierre Shale to be pieced together in their proper relative ...

The U.S. Geological Survey, in cooperation with the U.S. Air Force Civil Engineering Center, investigated the use of surface geophysical methods to delineate the top of the Cretaceous Pierre Shale along survey transects in selected areas within and near Ellsworth Air Force Base, South Dakota. Two complementary geophysical methods—electrical resistivity and passive seismic—were used along ...

The Sharon Springs Member of the Pierre Shale, usually described as a stagnant-basin deposit, shares more features in common with upwelling zones than with stratified stagnant basins. Specifically, the overall facies distribution of the Sharon Springs includes a basin-ward zone of laminated, highly organic-rich strata bounded on the west by ...

Lithology, reservoir properties, and burial history of portion of Gammon Shale (Cretaceous), southwestern North Dakota. Am. Assoc. Pet. Geol. Bull., 65 (1981), pp. 1146-1159. View in Scopus Google Scholar. ... Origin and source-rock potential of the Sharon Springs Member of the Pierre Shale, Colorado and Kansas. Woodward J., Meissner F.F ...Pierre Shale (Upper Cretaceous) at surface, covers < 0.1 % of this area. Blue-gray to dark-gray, fissile to blocky shale with persistent beds of bentonite, black organic shale, and light-brown chalky shale. Contains minor sandstone, conglomerate, and abundant carbonate and ferruginous concretions. Thickness up to 1,000 ft (305 m).Oil and gas have been produced from the Denver Basin since the discovery in 1901 of oil in fractured Pierre Shale at the McKenzie Well, part of the Boulder oil field in Boulder County. The great majority of Denver Basin oil and gas fields produce from Cretaceous sandstones, although the Permian Lyons Sandstone is also a producer.Cold methane seep deposits in the Pierre Shale of South Dakota and Wyoming. Photos by S.M. Klofak and M.P. Garb. A) View of seep deposits in the background, AMNH loc. 3494, Baculites scotti -Didymoceras nebrascense zones, Pierre Shale, Weston County, Wyoming. The seep deposits appear as small mounds called "Tepee Buttes".Elasmosaurus is known from the Pierre Shale formation, which represents marine deposits from the Western Interior Seaway. History of study Officers at Fort Wallace, Kansas, in 1867. Turner, who the same year discovered Elasmosaurus in the area, is second from left.The lower Pierre Shale shows a broad range of TOC, allowing comparison of TOC stratigraphic trends with MSA and paleoenvironmental variation to determine the dominant influences on OM burial. The units studied have not undergone sufficient burial to result in diagenetic alteration of detrital clay minerals ( 10 ) or thermal maturation of ...USNM PAL 331, Cedar Creek Anticline, Montana, Pierre Shale, Late Cretaceous, Maastrichtian. Materials. USNM PAL 331. Remarks. This species is referred to Proraster on the basis of its close relationship to Proraster dalli (Clark, Reference Clark 1891) in the phylogenetic analysis and is a new taxonomic combination.We had originally planned to head over the fish quarries of Kemmerer WY, but we decided to stay and explore the Pierre shale and museums for a few days and then dig with Walter a couple more days. We went to the Belle Fourche reservoir (actually the Carlisle shale, not the Pierre) to look for ammonites and shark teeth. ...

Siliceous Pierre: shale ; Mineralogical composition. Dominant clay mineral assemblage of ferruginous, siliceous and aluminous minerals ; Maximum dimensions of the ...Oct. 23 (UPI) -- Chevron, one of the world's leading oil producers, announced on Monday it entered into an agreement to purchase Hess Corp. for $53 billion in an all-stock transaction. Chevron ...Mancos and Pierre Shale. As the sea level rose, it flooded most of the state, depositing the Mancos Shale in the west and the Pierre Shale in central and eastern Colorado. These layers have produced an incredible menagerie of fossils, including coiled, squid-like ammonites, oysters, snails, rare and delicate pterosaur bones, enormous teeth …The Pierre Shale, which consists of an upper sandy member and a lower shaly member, is primarily marine in origin; however, the sandy member includes minor amounts of coal. Twelve ammonite range zones can be recognized in North Park, including ammonites as old as the early Campanian Baculites...Instagram:https://instagram. dr naemisaturn rongshannah bishopkaun A polycotylid about 3m in length. also present in the Pierre Shale Formation: Brimosaurus: B. grandis: Kansas: Fort Hays Limestone: A nomen dubium. Styxosaurus: S. snowii: Smoky Hill Chalk: 85-81.5 Ma ago: A large elasmosaurid about 12m in length, also present in the Pierre Shale Formation Elasmosaurus "E." sternbergiSe-rich soils in eastern Montana, western North Dakota, much of South Dakota, Wyoming, Colorado, and Utah, are underlain by a mixture of rock types, but shale is abundant in these areas. Particularly high concentrations of Se occur in soils overlying the Northern Rolling Pierre Shale Plains (USDA, 2006) in central South Dakota. azur kamara brotherlearn the culture Colorado Pierre Shale Fossils. The Pierre Shale is an upper Cretaceous marine formation, which is well known for its ammonite fossils. Most of the fossils below were found in Boulder and Pueblo Counties. A very complete and up-to-date reference for the ammonites and nautiloids of the Pierre Shale is Ammonites and the Other Cephalopods of the ... outlook rooms preconditioned in desiccators at different relative humidities. For both shale types, we present and discuss experimental results that demonstrate strong saturation and frequency dependence of dynamic Young's moduli, Poisson's ratios and Thomsen's anisotropy parameters, as well as P- and S-wave velocities at seismic and ultrasonic frequencies.The Pierre shale is the sedimentary rock formed on the bottom of an inland sea that covered the area from 75 to 70 million years ago. These years were during the time of the dinosaurs, but since dinosaurs were land organisms, none is found in the shale. Common fossil remains found in Pierre shale include the ammonites and mosasaurs.