• The river, and the gorge it's carved out of Nuttall sandstone and shale, is the stunning centerpiece of one of the eastern USA's best outdoor destinations , rife with opportunities for hiking, climbing and, of course, water sports. (lonelyplanet.com)
  • Most common aquifers are sandstone and shale, but coal supplies water to a few wells. (uky.edu)
  • Panoramic shot of nature's sandstone creations, Arches National Park, Utah at full moon night. (istockphoto.com)
  • Includes Anakeesta Formation - Dark-gray, bluish-gray, and black slate with dark-gray interbeds of fine-grained sandstone. (usgs.gov)
  • These are preserved in fine-grained and organic-rich heterolithic strata of the Lower Jurassic (Hettangian) Höganäs Formation in Skåne, southern Sweden. (lu.se)
  • Palynological analyses of fine-grained sandstones hosting the wrinkle structures show that the local terrestrial environment probably consisted of a wetland hosting ferns, cypress and the extinct conifer family Cheirolepidaceae. (lu.se)
  • The Wave consists of intersecting U-shaped troughs that have been eroded into Navajo Sandstone of Jurassic age. (wikipedia.org)
  • Initially, infrequent runoff eroded these troughs along joints within the Navajo Sandstone. (wikipedia.org)
  • The thin ridges and ribbing seen within The Wave are the result of the differential erosion of rhythmic and cyclic alternating grainflow and windripple laminae within the Navajo Sandstone. (wikipedia.org)
  • In some areas The Wave exposes deformed laminae within the Navajo Sandstone. (wikipedia.org)
  • Dinosaur tracks and the fossil burrows of desert-dwelling arthropods, such as beetles and other insects, have been found in the Navajo Sandstone within the North Coyote Buttes Wilderness Area. (wikipedia.org)
  • Five wells containing Lower-Middle Jurassic sandstones of Stø Formation from the Hammerfest Basin (7120/9-1, 7121/7-1), the Ringvassøy-Loppa Fault Complex (7119/12-1, 7119/12-4) and the Troms-Finnmark Fault Complex (7019/1-1) in the Barents Sea area are considered in this study. (unit.no)
  • This study includes a thorough systematic analysis of the ichnological record in the uppermost section of the Agua de la Mula Member of the Agrio Formation (Mendoza Group) in the Neuquén Basin (Argentina). (bioone.org)
  • Diana Elizabeth Fernández and Pablo José Pazos "Ichnology of Marginal Marine Facies of the Agrio Formation (Lower Cretaceous, Neuquén Basin, Argentina) at its Type Locality," Ameghiniana 49(4), 505-524, (1 December 2012). (bioone.org)
  • After their formation, the drainage basin, which fed rainwater to these troughs, shrank to the point that the runoff became insufficient to contribute to the cutting of these troughs. (wikipedia.org)
  • The sandstone cliffs at Mesa Verde are susceptible to ongoing frost weathering and erosion, which can lead to unstable cliffs. (nps.gov)
  • The Wave iconic desert strata golden sandstone Coyote Buttes Arizona The vibrant swirling strata and iconic curving canyons of The Wave, the landmark rock formation deep in the Vermillion Cliffs wilderness of Arizona and Utah, Southwest USA. (istockphoto.com)
  • The formation is situated on the slopes of the Coyote Buttes in the Paria Canyon-Vermilion Cliffs Wilderness of the Colorado Plateau . (wikipedia.org)
  • Due to the fragile nature of the formation and the large number of people wishing to visit it, a daily lottery system is used to dispense permits for up to 16 people and/or 4 groups (whichever comes first) two days before (visitors must apply within a geofence area encompassing the greater Kanab visitor center, Vermilion Cliffs, and Page areas). (wikipedia.org)
  • This trail takes hikers past towering sandstone cliffs and formations. (summitpost.org)
  • Wrinkle structures are microbially induced sedimentary structures (MISS) formed by cyanobacteria and are common in pre-Cambrian and Cambrian siltstones and sandstones but are otherwise rare in the Phanerozoic geological record. (lu.se)
  • The soft sandstone is fragile, especially the ridges and ribbing of The Wave. (wikipedia.org)
  • Sandstone ridges and fins, in the White Domes section of Valley of Fire State Park. (oceanlight.com)
  • The tops of hills and ridges commonly are capped by sandstone. (uky.edu)
  • The Entrada-Navajo aquifer includes the Wingate, Navajo, and Entrada Sandstones. (usgs.gov)
  • The Morrison aquifer includes the sandstone units of the Morrison Formation. (usgs.gov)
  • The Dakota aquifer includes the Burro Canyon Formation and Dakota Sandstone. (usgs.gov)
  • These rocks consist of a vertical sequence of alternating limestones, sandstones, and shales. (uky.edu)
  • This unit consists of a vertical sequence of coals, sandstones, and shales that is generally horizontally discontinuous. (uky.edu)
  • Mesa Verde is a part of the Colorado Plateaus Physiographic Province and shares its geologic history and some characteristic geologic formations with a region that extends well beyond park boundaries. (nps.gov)
  • Striated sandstone formations, layers showing eons of geologic history. (oceanlight.com)
  • Alcoves formed in the Cliff House Sandstone by the percolation of slightly acidic groundwater through the porous sandstone dissolving any cement material that held the grains together. (nps.gov)
  • Boukadi, FH , Al-Alawi, SM & Bemani, AS 1999, ' Matrix and cement effects on residual oil saturation in sandstone formations: A neural network approach ', Petroleum Science and Technology , vol. 17, no. 1-2, pp. 99-113. (uaeu.ac.ae)
  • Bemani, Ali S. / Matrix and cement effects on residual oil saturation in sandstone formations : A neural network approach . (uaeu.ac.ae)
  • Quartz cement is the most important authigenic mineral in these sandstones. (unit.no)
  • Sandstones tend to form thin soils and steep slopes. (uky.edu)
  • As a result, the troughs are now almost exclusively eroded by wind, as indicated by the orientation of erosional steps and risers cut into the sandstone along their steep walls. (wikipedia.org)
  • The cave is rather special, as it is not a karst cave, it is an erosional cave in sandstone. (showcaves.com)
  • The Bearreraig Sandstone Formation is a geological formation in Scotland. (wikipedia.org)
  • Q3 - In what geological formation is the King's Cave on the western side of Arran? (edinburghgeolsoc.org)
  • Wells that penetrate a section composed of more than 50 percent sandstone have better than average yields, and almost all wells will produce enough water for domestic supplies. (uky.edu)
  • however, sandstone yields water to some wells and limestone to a few. (uky.edu)
  • The formation is well-known among hikers and photographers for its colourful, undulating forms and the difficult hike required to reach it. (wikipedia.org)
  • Outcrop of biotitic meta-sandstone in the lower part of the Gunsight Formation, cut by white quartz veins with alteration envelopes of coarsely crystalline black biotite and minor muscovite. (usgs.gov)
  • The Stø Formation sandstones contain dominantly very fine-to medium-grained quartz arenites with occasional coarse-grained sandstone layers. (unit.no)
  • Residual oil in sandstone is affected by mineral composition, clay matrix and cementing material. (uaeu.ac.ae)
  • These formations have some limited potential as aquifers, but the high clay content generally blocks small conduits in the limestone. (uky.edu)
  • Laboratory tests were run to determine what clay stabilization measures could be taken in sandstone cores to prevent clay swelling and particle migration caused by hydrazine hydrate. (cdc.gov)
  • gas drilling operation well logging production control nd 0 correlation recovery rate hydrate pcat pressure core The 28th Formation Evaluation Symposium of Japan, September 13-14, 2023 Additional Data Acquisition after Second Offshore Gas. (onepetro.org)
  • Waxing gibbous moon rising over sandstone formations at sunset along the Colorado River canyon near Moab, Utah. (jonfullerphotography.com)
  • Purpose The Coconino Sandstone is one of the most well-known formations in Grand Canyon. (icr.org)
  • With all the rock formations, rugged buttes and deep ravines in the canyon, it would be easy to spend the better part of a day photographing the moods of the area, as well as the wildlife one encounters on a trip through the area. (summitpost.org)
  • At most places it is subequally divisible between the Hickory sandstone member below and the Cap Mountain limestone member above, with the thin but widespread, glauconitic Lion Mountain sandstone member capping and completing the sequence. (usgs.gov)
  • The thin but widespread, nonglauconitic Welge sandstone member introduces the sequence. (usgs.gov)
  • The Wave iconic desert strata golden sandstone Coyote Buttes. (istockphoto.com)
  • The Riley formation comprises the basal Paleozoic strata of the Llano uplift. (usgs.gov)
  • A deep longwall coal mine was instrumented with a 3-D microseismic system to help determine the exact strata mechanics associated with rock failure, redistribution of stress and associated gob formation from the longwall. (cdc.gov)
  • Aerial view of Monument Valley Aerial view of sunlight passing through rock formation in Monument Valley at sunrise, Arizona, USA. (istockphoto.com)
  • Sunrise lights sandstone rocks, Valley of Fire. (oceanlight.com)
  • Setting moon over natural sandstone arch, sunrise. (oceanlight.com)
  • Sandstone domes and formations at sunrise. (oceanlight.com)
  • Using artifcial neural network, the intent was then to predict the extent of residual oil in sandstone rocks given limited information about rock matrix, cementing material and primary porosity. (uaeu.ac.ae)
  • The Wilberns formation includes five named members between the Riley formation and rocks of the Lower Ordovician Ellenburger group. (usgs.gov)
  • Sandstone details, red rocks, Valley of Fire. (oceanlight.com)
  • These laminae were deformed prior to the lithification of the sand to form sandstone. (wikipedia.org)
  • The Wave is a sandstone rock formation located in Arizona , US , near its northern border with Utah . (wikipedia.org)
  • The blond-colored sandstone, just three layers down from. (icr.org)
  • The Fire Wave, a beautiful sandstone formation exhibiting dramatic striations, striped layers in the geologic historical record. (oceanlight.com)
  • After evaluating the soil geologically to identify any chemical trends between geologic units (e.g., rock formations) on Vieques, ATSDR concluded that significant differences existed in the metal composition of soils developed on the different geologic units. (cdc.gov)
  • The soil developed on the alluvial sands, silts, and gravels (the Qa formation) is similar to the soil developed on other geologic units, with no significantly different metals. (cdc.gov)
  • Noted for its stunning sandstone formations, beautiful desolation and rock art. (lonelyplanet.com)
  • This red sandstone valley has beautiful rock formations. (zootoo.com)
  • The two major troughs which comprise this rock formation are 62 feet (19 m) wide by 118 feet (36 m) long and 7 feet (2 m) wide by 52 feet (16 m) long. (wikipedia.org)
  • Rising sun creates the photographers shadow on a sandstone wall. (oceanlight.com)
  • Geologically interesting sandstone rock formation at Bako National Park on Borneo, Stock Photo, Picture And Low Budget Royalty Free Image. (agefotostock.com)
  • The effect of compaction and exhumation on reservoir properties (porosity and permeability) and seismic property (P-wave velocity) of these sandstones have been investigated. (unit.no)
  • The Wave exposes large-scale sets of cross-bedded eolian sandstone composed of rhythmic and cyclic alternating grainflow and windripple laminae . (wikipedia.org)
  • The formations of the sandstone are just so unique and unlike anything that you've ever seen before. (chartattack.com)
  • In general, the concentrations of both the high field strength elements and the transition trace elements are lower in Téseny sandstones from borehole Dv-3 compared with those of UCC. (asvanytan.hu)
  • and Mesa Verde Group, Menefee Formation (Upper Cretaceous). (nps.gov)
  • It's still partially embedded in the sandstone that it was found in. (fossilera.com)
  • tooth can be found within the sandstone as well. (fossilera.com)
  • gas drilling operation geology directional drilling enhanced recovery united states government reservoir simulation 28th formation evaluation symposium non-uniform. (onepetro.org)
  • Compressed sand formations with lots of close-up photos of the surface details. (fotoref.com)
  • The remains of the proximal portion of a right ulna and radius of an indeterminate thyreophoran dinosaur are known from the formation. (wikipedia.org)
  • The ichthyosaur Dearcmhara is also known from the formation. (wikipedia.org)
  • At least sixteen Orders containing more than forty Genera are known from the formation. (fossilera.com)
  • The formations have been mapped only in the region of the Great Smoky Mountains. (usgs.gov)
  • A rangers station lies 3km into the park from the main road and there are basic, sandstone-surrounded camping grounds at Gurrandalng (18km into the park) and Jarnem (32km). (lonelyplanet.com)
  • Sheer force of wind for millions of years has helped nature cut through these solid sandstone formations. (istockphoto.com)