Search Results: Crossbedding

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Cross-bedding
Minggu, 2025-11-09 20:40:02

In geology, cross-bedding, also known as cross-stratification, is layering within a stratum and at an angle to the main bedding plane. The sedimentary...

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Limestone
Kamis, 2026-04-16 04:49:07

environments, such as the Bahama platform, and oolites typically show crossbedding and other features associated with deposition in strong currents. Oncoliths...

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Horseshoe Bend (Arizona)
Senin, 2025-10-20 13:50:02

the Grand Canyon at Horseshoe Bend. This sandstone is notable for its crossbedding and iron concretions. It is likely that the Colorado River will eventually...

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River delta
Kamis, 2026-05-21 18:49:13

topset beds. This three-part structure may be seen on small scale by crossbedding. The bottomset beds are created from the lightest suspended particles...

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Eagle Sandstone
Selasa, 2025-10-07 03:12:34

to pale yellow-orange, fine-grained sandstone. It contains areas of crossbedding and local shale members. It contains large (up to 15 feet in diameter)...

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Sharon Conglomerate
Senin, 2024-12-09 06:56:45

conglomerate and quartzarenite sandstone. In places it is abundantly crossbedded. The Sharon Conglomerate is generally considered a Member of the Pottsville...

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Aeolian processes
Minggu, 2026-05-31 02:53:15

within the group are up to 500 meters (1,600 ft) thick. Study of the crossbedding shows that sediments were deposited by a clockwise atmospheric cell....

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Arches National Park
Minggu, 2026-03-08 20:14:20

Entrada Sandstone: Crossbedded rock layers formed within the Entrada Sandstone that make up Arches National Park...

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Pensauken Formation
Minggu, 2025-06-08 20:42:06

may be massive (without stratification) or stratified, and may contain crossbedding. The Pensauken was initially described by Rollin D. Salisbury as the...

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Beclabito Formation
Sabtu, 2025-06-14 01:29:52

sandstone is very fine to medium grained and displays ripple crossbedding, trough crossbedding, and horizontal laminations. The siltstones are reddish-brown...

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Walnut Canyon National Monument
Minggu, 2026-06-07 02:00:12

Sandstone. The Kaibab formation also forms the rim of the Grand Canyon. Crossbedding is present in the Coconino Sandstone. The Walnut Canyon site contains...

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Khadir Formation
Kamis, 2025-12-25 06:00:49

meter thick, friable, coarse-grained sandstone occurs, with large trough-crossbedding that cements towards the top and forms a small cliff. The depositional...

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Morrison Formation
Rabu, 2026-05-06 23:52:54

Dakota Formation. Jackpile Sandstone Member (NM): primarily a whitish crossbedded subarkose sandstone with a clay matrix. It is interbedded with variegated...

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Glorieta Sandstone
Sabtu, 2025-10-18 05:20:31

local coastal eolian deposition. The presence of forams and herringbone crossbedding also suggests a shallow marine environment. The Glorieta Sandstone likely...

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Black hand sandstone
Sabtu, 2024-06-22 05:09:08

Black Hand Sandstone is a multistory, crossbedded, coarse-grained conglomeratic sandstone within the Cuyahoga Formation in Ohio. Wikimedia Commons has...

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Bidahochi Formation
Senin, 2025-11-17 00:56:21

conglomerate of limestone and siltstone pebbles. The beds show distorted crossbedding and ripple marks, and plant fossils (impressions and petrified wood)...

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Dinosaur Park Formation
Senin, 2026-06-01 07:20:49

channel environments and consists primarily of fine- to medium-grained, crossbedded sandstones. The upper portion, which was deposited in overbank and floodplain...

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Darcy's law for multiphase flow
Kamis, 2025-03-27 16:55:12

directions. Geological heterogeneities in the reservoirs like laminas or crossbedded permeability structures in the rock, also cause directional relative...

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Djadochta Formation
Selasa, 2026-06-09 07:36:13

yellowish-white) sands and sandstones. 30 m (98 ft) Bayn Dzak Reddish-orange, crossbedded, and structureless sandstones, with minor deposits of brown siltstones...

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Bald Eagle Formation
Selasa, 2026-06-02 14:07:07

defined as a gray to olive-gray and grayish-red, fine to coarse-grained crossbedded sandstone or greywacke. A conglomeratic member, called the Lost Run Member...

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Navajo Church
Senin, 2026-05-25 00:45:57

This then overlays Zuni Sandstone which displays spectacular eolian crossbedding on the south face. Successive layers below dropping south to Red Rock...

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Cappahayden Formation
Kamis, 2025-12-04 06:01:01

sandstones/siltstones with very fine black parallel laminations, rarely with crossbedding. "GEOLOGY OF THE AVALON PENINSULA, NEWFOUNDLAND" (PDF). "Newfoundland...

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Antelope Ridge (Juab County, Utah)
Jumat, 2026-05-22 00:42:50

Crossbedded tuff of Topaz Mountain Rhyolite at the south end of Antelope Ridge (USGS photo)...

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Geology of the Death Valley area
Kamis, 2026-04-09 09:10:18

(210 to 240 m) thick separated by 500 feet (150 m) of purple shale, crossbedding conspicuous in quartzite. Maximum thickness about 2,000 feet (600 m)...

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Hopeman Sandstone Formation
Sabtu, 2025-06-28 08:10:03

floods. Basal beds are pebbly and the unit varies, exhibiting large-scale crossbedding to fine rarely contorted laminations. Some beds are friable, while others...

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Pambikalbae
Kamis, 2026-05-21 09:47:03

hollow parts of the specimens exhibit fine laminations and small scale crossbedding, which indicates that the specimens were buried progressively, not instantly...

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Atarque Sandstone
Kamis, 2025-05-29 00:30:10

thickness of 100 feet (30 m). The beds are flat, massive and have low-angle crossbedding. The formation intertongues with the underlying Rio Salado Tongue of...

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Kurkar
Minggu, 2026-05-31 09:37:04

of medium to coarse-grained calcareous sandstone are characterized by crossbedding. Israel's coastal sand dunes, the habitat of many rare species of plants...

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Ortega Formation
Rabu, 2024-07-17 13:22:51

some beds near the base of the formation composed of metaconglomerate. Crossbedding is found throughout the formation, and aluminosilicate minerals are abundant...

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Moreno Hill Formation
Senin, 2025-09-29 11:07:29

pale orange to light brown poorly sorted grains that usually show steep crossbedding. The sandstones are interpreted as channel or splay deposits in a fluvial...

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Redwall Limestone
Kamis, 2025-09-04 10:12:11

packstones. In a few places, this member exhibits conspicuous medium-scale crossbedding. In the Grand Canyon, the Whitmore Wash Member varies in thickness from...

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Hoback Formation
Senin, 2025-06-30 00:16:08

substantial portion of the year. A prominent sandstone facies (with crossbedding, overbank deposits, and large pebbly deposits), thought to represent...

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Ashfield Shale
Selasa, 2026-03-31 19:05:10

volcanic rock remnants with uncommon calcite and feldspar. Low angle crossbedding hint a littoral deposit or a marine block, possibly part of a beach and...

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El Cobre Canyon Formation
Kamis, 2025-06-05 04:59:32

sandstone beds are coarse grained, arkosic, and micaceous, with trough crossbedding. The sandstones form thick cliffs and benches. The conglomerates are...

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Gallup Sandstone
Kamis, 2025-06-05 05:11:11

highly bioturbated and in some place shows ripple marks and low-angle crossbedding. It overlies and intertongues with the Mancos Shale and is overlain and...

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Marquenas Formation
Minggu, 2025-10-05 20:15:53

uncertain, since they contain no aluminum silicate minerals and little crossbedding, but both are present in the Ortega Formation, the most likely local...

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Upheaval Dome
Kamis, 2026-05-28 02:25:45

the cliff-forming Wingate Sandstone, the Kayenta Formation, and the crossbedded Triassic-Jurassic Navajo Sandstone. Structurally, the dome is anomalous...

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Scientific information from the Mars Exploration Rover mission
Selasa, 2026-02-10 09:44:59

Crossbedding features in rock "Last Chance"...

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Entrada Sandstone
Selasa, 2026-03-17 09:12:52

south and east, the Entrada transitions to cliff-forming red or white crossbedded sandstone, sometimes called the "slickrock facies". This is actually...

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Chugwater Formation
Senin, 2025-06-02 02:58:46

interruption, there are a few examples of ripple marks and occasional crossbedding. Examples of infilled mudcracks of irregular shape, are common. The main...

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Tesuque Formation
Sabtu, 2025-06-21 02:46:59

coalesced alluvial fans with highly variable lithology. There is significant crossbedding and lenticular bedding, and some sandstone beds are well cemented with...

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Patuxent Formation
Selasa, 2026-01-20 12:27:10

common, and sand beds gradually transition to clay. Sandy beds may be crossbedded, which is evidence of shallow water origin. The Patuxent is the basal...

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Endothiodon
Minggu, 2025-09-28 05:31:45

fine-to medium- or coarse-grained, dark or greenish grey, and very finely crossbedded. Since then several more specimens have been found in African countries...

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Geology of the Capitol Reef area
Senin, 2026-05-04 21:32:07

marks and mudcracks while the sandstone has horizontal and low-angle crossbedding. Small to large fossilized track-ways from amphibians and reptiles are...

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Meridiani Planum
Selasa, 2026-01-27 08:53:14

subaqueous ripples. Figure 24 illustrates cross-stratification, also called crossbedding. The concentration of the element bromine in rocks was highly variable...

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Mizur Formation
Selasa, 2026-05-19 07:04:42

and is dominated by fine-grained sandstone horizons, often low-angle crossbedding and scarce fine ripple marks, in contrast to the abundant large wave...

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Kryostega
Sabtu, 2026-03-21 09:53:34

the Fremouw Formation consists largely of a 300-meter thick series of crossbedded, volcaniclastic sandstones. Kryostega was found in a thin siltstone cobble...

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Belt Supergroup
Rabu, 2025-04-02 00:08:47

quartz-rich of interlayered red argillite and siltite characterized by mudcracks and interstratified with abundant white, crossbedded quartzite and sandstone....

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Ellisdale Fossil Site
Senin, 2026-06-01 06:12:37

clays underlain by crossbedded coastal sands of the Englishtown Formation. The estuarine clays are overlain by well-sorted, crossbedded sand and offshore...

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Mesa Rica Sandstone
Kamis, 2025-07-03 05:47:18

dating back to the Cretaceous period. The Mesa Rica Sandstone consists of crossbedded white to buff sandstone. The sandstone is massive and medium- to coarse-grained...

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Blue Knob State Park
Minggu, 2026-02-22 13:03:05

transitional Devonian-Mississippian Rockwell Formation, consisting of crossbedded argillaceous sandstone with some shale beds. Blue Knob All Seasons Resort...

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Zonguldak basin
Sabtu, 2026-05-30 06:23:38

contains economic deposits of coal. It is composed predominantly of crossbedded black shales and silts in the lower sections of the unit and progressively...

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Renton Formation
Selasa, 2025-09-30 08:37:50

well sorted and thinly bedded; locally, the sandstone is massive or crossbedded. Some beds in the formation are very soft and plastic when wet, owing...

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Pictured Cliffs Formation
Rabu, 2026-05-27 10:03:14

grayish-orange cliff-forming sandstone. The upper beds are massive and crossbedded, consisting of well-sorted, fine-grained, friable sandstone. The lower...

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Abo Formation
Rabu, 2026-05-06 18:49:33

is dominated by mudstone (87% of the type section), with some trough-crossbedded, coarse-grained, conglomeratic sandstones (11% of the type section) interpreted...

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Geology of the United States
Senin, 2025-12-08 09:23:45

Crossbedded Navajo Sandstone in Zion National Park...

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Price River Formation
Jumat, 2026-01-23 18:50:57

conglomerate and conglomeratic sandstone; sparse mudstone beds as well. The crossbedded sandstones are generally thin bedded to massive, and commonly thick bedded...

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Hakatai Shale
Rabu, 2026-03-25 01:34:02

Shale consists of pale purple or lavender, fine- to coarse-grained, crossbedded coarse arkose. Basaltic sills and dikes intrude all of the Unkar Group...

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Juniata Formation
Senin, 2026-05-04 13:52:06

thin- to thick-bedded siltstone, shale, and very fine to medium-grained crossbedded sandstone or subgraywacke and protoquartzite with interbedded conglomerate...

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Minotaurasaurus
Kamis, 2025-10-02 04:54:43

Turgrugyin Member. The Bayn Dzak Member consists of moderate reddish orange, crossbedded, and structureless sandstones, with subordinate deposits of brown siltstone...

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Pavy Formation
Senin, 2025-09-22 04:03:33

period. The Pavy Formation is interpreted to be fluvial in origin. Trough-crossbedded sandstone facies dominate this formation and were probably channel deposits...

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Exeter Sandstone
Minggu, 2025-06-01 05:50:45

formation consists of up to 24 meters (79 ft) of white to pale pink crossbedded quartz sandstone. It unconformably overlies the Sheep Pen Sandstone and...

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Romeroville Sandstone
Minggu, 2025-06-01 07:24:39

yellow-gray quartz sandstone with minor siltstone. The sandstone is planar crossbedded and bioturbated and locally pebbly. It overlies the Pajarito Formation...

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Crevasse Canyon Formation
Sabtu, 2025-06-14 01:44:19

fine- to medium-grained sandstone, and coal. Sandstone is commonly crossbedded or ripple laminated." The Dalton Sandstone Member is described as "Gray...

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Trujillo Formation
Sabtu, 2025-06-21 02:48:32

more common in the middle and upper beds. The sandstone is typically crossbedded and is fine-grained in the lower beds and more coarse in the middle and...

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Wapiti Formation
Sabtu, 2026-01-24 18:31:43

seams and bentonite beds. The sandstones are typically thick, pale grey, crossbedded and bentonitic. The middle part contains less sandstones, more mudstones...

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Palomas Formation
Rabu, 2025-08-20 18:44:20

40 centimetres (16 in) long. The siltstone is well-sorted and trough-crossbedded. The formation may correlate with the Sierra Ladrones Formation to the...

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Log Springs Formation
Selasa, 2025-06-03 05:42:34

The upper part of the formation is an upward coarsening sequence of crossbedded argillaceous reddish sandstones. These include abundant clasts of Precambrian...

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Big Rock Formation
Sabtu, 2025-06-07 03:24:23

sizes are from 1 to 20 cm and the pebbles are systematically elongated. Crossbedding is pervasive. Flattened felsic clasts may be metamorphosed pumice. It...

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Abiquiu Formation
Kamis, 2026-03-26 19:47:13

Abiquiu Formation consists of light-gray to yellowish-gray, locally crossbedded, thin to thick beds of tuffaceous sandstone, pebbly sandstone, and siltstone...

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San Pedro Arroyo Formation
Sabtu, 2025-06-21 02:38:52

123 meters (404 ft). The sandstones are purple to red in color and are crossbedded, laminar, ripple laminated and micaceous. They are interbedded with conglomerates...

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Citipes
Senin, 2026-01-12 21:48:29

channel environments and consists primarily of fine- to medium-grained, crossbedded sandstones. The upper portion, which was deposited in overbank and floodplain...

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Sixtymile Formation
Minggu, 2025-11-16 09:08:23

derived from the middle member. Some of the sandstone exhibits fluvial crossbedding and is fanglomeratic. Massive weathering maroon conglomerate is present...

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Cherryvale Formation
Rabu, 2025-07-16 20:54:18

the Kansas City metro area, this base is overlain by a thick "reef" of crossbedded oolitic limestone, which can be up to 12-16 feet thick, known as a "carbonate...

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Stadium Conglomerate
Sabtu, 2025-06-21 02:43:52

sandstone matrix. The conglomerate has dispersed lenses of fossiliferous crossbedded sandstone. It overlies the Friars Formation, and underlies the sandstone...

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Viking Formation
Senin, 2025-08-11 10:00:04

Formation Stratigraphic range: Late Albian PreꞒ Ꞓ O S D C P T J K Pg N Crossbedded Viking sandstone Type Geological formation Underlies Big River Formation...

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Ganoga Lake
Rabu, 2026-02-25 07:26:26

which is a "light-gray to buff or light-olive-gray, medium-grained, crossbedded sandstone", with some siltstone and conglomerates. The Pocono Formation...

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Chuska Sandstone
Rabu, 2025-07-02 08:40:07

(eolian) sandstone. The sandstone is pinkish-gray to yellowish-gray and is crossbedded and arkosic (it contains significant feldspar). The formation overlies...

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Arroyo del Agua Formation
Kamis, 2026-04-02 08:30:00

sheets. The sandstone sheets themselves are coarse, arkosic, and trough crossbedded. The minor conglomerate beds are mostly composed of intraformational...

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Osha Canyon Formation
Selasa, 2025-06-03 05:43:25

calcareous marine sandstone bed of the Osha Canyon Formation from the basal crossbedded nonmarine sandstone bed of the Sandia Formation. Fossils are characteristic...

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Mount Ritchie
Minggu, 2025-11-09 09:41:41

consists of locally fossiliferous, interbedded shale, siltstone, and crossbedded sandstone of which the upper few meters are locally deformed by glaciotectonic...

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