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tuff, while rock containing 25% to 75% ash is described as tuffaceous (for example, tuffaceous sandstone). A pyroclastic rock containing 25–75% volcanic...

Tuffaceous sandstone layers in New Mexico...

interbedded with tuffaceous mudstones and sandstones, and some pumice. The unnamed lower member is a hard platy shale alternating with beds of tuffaceous mudstones...

the subsoil and underneath is tuffaceous material of varying degrees of disintegration and weathering. This tuffaceous material is exposed by extensive...

the ocean it forms a littoral cone, a small cone-shaped accumulation of tuffaceous debris formed when the blocky ʻaʻā lava enters the water and explodes...

geologic formation in Panama. The formation consists of tuffaceous sandstones, conglomerates, tuffaceous shales and algal and foraminifera-rich limestones,...

to 370 metres thick. Formed in the Late Permian, it consists mostly of tuffaceous material from local Illawarra volcanic rocks. Budgong Sandstone is reddish...

formation is composed of interbedded sandstone, shale, conglomerate, and tuffaceous materials derived from both stream deposition and volcanic activity. Local...

varied. They include shale and sandstone of Triassic age and tuff and tuffaceous breccia that date to times slightly before or after the Oligocene–Miocene...

Late Miocene up to the Early Pliocene, roughly from 9.6 to 4.5 Ma. The tuffaceous sandstones, diatomaceous siltstones, conglomerates and dolomites were...

late Permian around 255.02 Ma. This formation includes tuff, tuffaceous sandstone, tuffaceous siltstone, claystone, and chert. Often noticed at Nobbys Head...

belonging to the Middle Tertiary: rhyodacites, rhyolites and ignimbrites with tuffaceous sediments at the base outcrops; andesitic rocks and felsitic late Early...

formation in Cuba. The dark-colored limestone intercalated with volcanic and tuffaceous formation preserves rudist fossils of Vaccinites inaequicostatus and dates...

concludes: "The Duke quarry phyllite was derived from argillite, tuff or tuffaceous sandstone, and volcanic breccia. Occurrence of laminated argillites suggests...

The rhyolitic rocks consist of lava flows and hydrothermally altered tuffaceous rocks that are part of two distinct eruptive centers, which are interpreted...

Japanese Morawan Formation, the largest known one from the Morawan's Upper tuffaceous siltstone. Other formally described extinct toothed mysticetis from this...

consist of basaltic andesite volcanic rocks regionally classified as the Tuffaceous Breccia, Lava, Sandstone, and Conglomerate. These volcanic rocks are intruded...

mudrock, with a thin layer of sandstone and green siltstone, which is tuffaceous and calcareous in nature. The current known area of the locality is 40 m2...

sandstone and siltstone, with minor amounts of conglomerate, shale, and tuffaceous beds. It intertongues with the underlying Parachute Creek Member of the...

Limestone – micritic limestone with tuffaceous turbidites and minor chert; Upper Burgos Member – Limestone, tuffaceous sandstone, siltstone and mudstone...

Formation Overlies Drook Formation Briscal Formation Lithology Primary Tuffaceous siltstone Other Sandstone, Shale Location Region Newfoundland Country...

low mountains. It is mostly underlain by volcanic ash, rhyolite, and tuffaceous rocks. Low sagebrush is common in extensive areas of shallow, stony soil...

Ferrierite typically occurs as an alteration mineral in basaltic rocks and in tuffaceous sediments. In North America, it is found at Kamloops Lake, BC, Canada...

calcarenaceous, muddy siltstone, fine-grained sandstone with interbeds of tuffaceous sandstone and conglomerate or rhyolitic tuff. The following fossils were...

yellowish and greenish sandstones of fine-to-medium grain, some of which are tuffaceous. These deposits were laid down during the Upper Cretaceous, either in...

production during wet season. It consists of gently undulating to rolling tuffaceous and sedimentary foot slopes slightly above and adjacent to the plain and...

formations include the pumice-rich, crystal-vitric Breitenbush Tuff, tuffaceous sandstone, the Detroit Beds, and mudflow breccia. The Breitenbush Tuff...

which includes sandstones, clays and conglomerates at the top, and tuff, tuffaceous sandstones, conglomerates and breccia, porphyry and lava. The Porphyritic...

side of the Ochoco Mountains. All three exposures, consisting mainly of tuffaceous sediments and pyroclastic rocks rich in silica, lie unconformably between...

fossil rich Estancia La Costa Member, which consists predominately of tuffaceous deposits and fine grained mudrock, and the upper fossil-poor Estancia...

rocks in the Mitchell Butte Quadrangle. The predominant rock types are tuffaceous sandstones, siltstones, and conglomerates with smaller amounts of tuff...

Group, being overlain by the tuffaceous Blackbrook Reservoir Formation. The dominate rocks in this formation are also tuffaceous in nature. A borehole sample...

material" and Taisho is thought to be consist of "andesite, tuff breccia, and tuffaceous sandstone". Permission for collecting herbs on three of the islands was...

often black. Red roundstone conglomerate is common and all beds are tuffaceous. Lithic tuff and spilite are mapped separately. A number of fossil collections...

Zabaykalsky Krai, Russia dating to the Early Cretaceous (Barremian). The tuffaceous mudstones of the formation were deposited in a lacustrine environment...

Overlies Pierre Shale Thickness 230–300 m (750–980 ft) Lithology Primary Tuffaceous claystone, conglomerate Location Coordinates 43°12′N 107°06′W / 43.2°N...

hill is primarily composed of alternating layers of sand gravel beds and tuffaceous mudstone beds. List of tunnels in Japan Seikan Tunnel undersea tunnel...

Creek Formation, which is up to 4,200 feet (1,300 m) thick, and composed tuffaceous rock with volcanic ash and rounded quartz grains. The top of this formation...

suggests, which contain clasts that are composed of dust tuff, alongside tuffaceous pelites, set into a matrix of coarse-grained tuffs and medium-grained...

side of the Ridge, is laminated to massive, pale gray, tuffaceous mudstone, to fine tuffaceous sandstone. The overlying Pittsburg Bluff Formation, exposed...

area, generally found on the mountain foot slope. It forms the rolling tuffaceous plateau. This topography includes steep hills, ridges and elevated inland...

overlain by the Puerto Madryn Formation and comprises grey and white tuffaceous mudstones and sandstones, deposited in a shallow marine environment. The...

(1.6–4.9 ft) in thickness. The unit itself is made up of sandstone and tuffaceous siltstone with the original extent of the unit being larger than what...

millennia, extreme geothermal pressure has helped form a strong, durable tuffaceous volcanic sandstone called tuff, a rock composed of compressed and compacted...

the Lower Complex, was characterised by yellowish to yellow-grey tuffs, tuffaceous sandstones and breccias, mainly of felsic to medium composition. Numerous...

Mountains. The Alkali Canyon Formation is composed of basalt gravel and tuffaceous sediment. The Alkali Canyon Formation overlies the Columbia River Basalt...

bright red tuff. Overlying the lowermost layer, is 160 m (525 ft) of tuffaceous breccias with a sandy or silty matrix. The poorly rounded and sharp-edged...

consist of extensively folded layers of gray and greenish gray tuffaceous sand, tuffaceous silt, pebbly sand, and layers of brown coal exposed in sea cliffs...

yellowish and greenish sandstones of fine-to-medium grain, some of which are tuffaceous. These deposits were laid down during the Upper Cretaceous, either in...

around 256 to 252 Ma in the Permian. This formation includes coal seams, tuffaceous claystone, siltstone, sandstone, and conglomerate. Medium to coarse-grained...

preserves large petrified logs with attached bark and broken branches, within tuffaceous sediment. Tanis 66.0 Ma North Dakota,  US Tanis is part of the extensively...

andesitic and dacitic transitional to rhyolitic flows, flow breccias, and tuffaceous volcaniclastic beds. Middle Miocene Conejo Volcanics correlate with the...

six buildings in Enterprise that was built of "Bowlby stone", a local tuffaceous rock; the Wallowa County Courthouse and the Record-Chieftain's plant building...

subdivided into a lower Unit A and an upper Unit B. Unit A consists of tuffaceous clayey silts and silty clays, with many layers of tephra. The upper boundary...

preserves lacustrine and alluvial fan environments, as well as a few tuffaceous expressions. Preserved fossils include Blancan fauna. Earth sciences portal...

formation top is marked by a change from sandstone and claystone to the tuffaceous sediments of the overlying Denver Formation. In 2002 the Arapahoe Formation...

Overlies Solva Group Thickness about 230m Lithology Primary mudstones Other tuffaceous sandstone Location Region South West Wales Country Wales Type section...

Sakawa climate data Sakawa population statistics Sakagami, Sumio. "On the Tuffaceous Conglomerate at Northwestern Part of Koike in the Sakawa Basin, Shikoku...

S-tectonite Stratabound Stratum Stromatolitic Stylolitic Subhedral Symplectite Tuffaceous Trachytic texture Vesicular texture Variolitic Vitreous Vuggy Geology...

and stromatolitic laminates. These gravels are surrounded by felsic tuffaceous matrix. Facies 2, which overlies facies 1, contains widespread stromatolite...

including ash and pumice. The periphery of Mt. Matarem includes lahar and tuffaceous deposits. The Miocene Batan Group are sedimentary rocks that includes...

zone occurs along an approximately east-west regional shear dividing tuffaceous meta-sediments in the south from andesitic and basaltic meta-volcanics...

Through Infrared Stimulated Luminescence Dating of Potassium Feldspar from Tuffaceous Sediment" (PDF). California Archaeology. 11 (1): 5–20. doi:10.1080/1947461X...

thin-bedded, sometimes ripple-marked sandstones, lenticular calcareous and tuffaceous sandstones, and interstratified sutures of minor coal up to 0.9 metres...

the latest Campanian age. The deposit was associated with an overlying tuffaceous layer, and underlying nodules of brown sandstone yielded remains of the...

Arapahoe Formation, and its base is marked by the first appearance of tuffaceous sediments. It is overlain by the Dawson Arkose. In 2002 the Denver Formation...

Caimito Formation. The formation consists of poorly lithified, pebbly, tuffaceous, calcareous sandstones and conglomerates and preserves fossils dating...

including crater, diatreme, and hypabyssal rocks. The upper layers consist of tuffaceous sandstones and mudstones deposited in a crater lake that once occupied...

period. The formation is largely made up of lake deposits and consists of tuffaceous and diatomaceous sands and silts, limestone, gravel, and intercalated...

thickness of conglomerate that is interbedded with lesser proportions of tuffaceous sandstone and siltstone. Volcanic breccia is absent. The conglomerates...

from the late Eocene to Miocene epochs. The formation consists mostly of tuffaceous conglomerate and sandstone with a thickness of more than 1,200 feet (370 m)...

designated as a national natural monument. Terushima is a small island made of tuffaceous sandstone with a cliff of 31 meters in height, located approximately 250...

year. The rocks they make up the Adobe hills are mainly dominated by tuffaceous sandstone, basaltic lavas and basaltic cinder cones that are of Pliocene...

margin of southern Gondwana, being dominated by two types of facies: "tuffaceous" siltstone of fluvial and volcanic strata, deposited maybe more than 10...

the Chatham Islands and Macquarie Island. It is saxicolous, growing on tuffaceous rock outcrops and basalt, typically in more sheltered locations along...

43 Mya. The beds are composed of silica and calcium carbonate cemented tuffaceous sandstones, siltstones, and conglomerates which preserve either a lake...

the ancient Tabula Peutingeriana. The crypt, entirely dug out of the tuffaceous rock, is the result of changes and additions in the plan and architecture...

flowers. This plant only grows in tuff, a soil composed of volcanic ash, or tuffaceous sandstone. The substrate is light tan to white in color. There are few...

and consists predominantly of conglomerate and lesser proportions of tuffaceous sandstone and siltstone. Volcanic breccia is absent and only a very few...

phase and Carmona sandy clay loam. This type of soil is granular with tuffaceous material and concretions. It is hard and compact when dry, sticky and...

facies recognized in the formation are alluvial fan deposits with thin tuffaceous beds and conglomerates, covered by a section of basaltis and other volcanic...

Carson) in 2007 and correlated with the Hanson Formation, defined as tuffaceous deposits with silicic glass shards along with quartz and feldspar. Later...

Moose Mountain flora had been performed. Using crystals obtained from tuffaceous sandstones, Argon–argon dating provided an age of 14.91 ± 0.23 Ma placing...

regeneration of vegetation. Volcanic activity has generated basaltic lava and tuffaceous material with no soil cover. Heard Island is by far the largest of the...

purple-grey sandstone and light-grey sandstone, intercalated with tuff or tuffaceous sandstones. The depositional age of the Ilseongsan Formation was initially...

fish fossils, among which megalodon, and a deep water member comprising tuffaceous shales and mudstones containing gastropods, bivalves and scaphopods. The...

part of the Harwich Formation, and London Clay, and is characterized by tuffaceous clayey silts and silty clays, with distinct ash layers and tephra layers...

sandstones with low-angle cross bedding, alternating with light brown tuffs, tuffaceous sandstones, sandstones with carbonate cement and shales. In this member...

the Gatún Formation. They are somewhat calcareous, or marly, somewhat tuffaceous, and have a clay-like matrix. The sandstone contains numerous grains of...

light-gray to yellowish-gray, locally crossbedded, thin to thick beds of tuffaceous sandstone, pebbly sandstone, and siltstone. There are also a few gravel...

only barangays in San Juan that are not entirely situated on tuff and tuffaceous sedimentary rock, with parts of the barangay being situated on top of...

disseminations in quartzites, as veins and disseminations in argillites and tuffaceous units, in shear zones and faults, and in granulites'. Uranium mineralization...

black, or olive bed, or parting, consisting of coarse crystal tuff or tuffaceous shale, thinly laminated, with sand-sized mica flakes. The Tioga ash bed...

that it was deposited in the Oligocene epoch. The formation consists of tuffaceous sandstone and minor conglomerate. These are interbedded with volcanic...

The lower section of the member consists of tuffaceous mudstone while the upper section consists of tuffaceous turbidites formed by underwater avalanches...

within were found within deposits corresponding to strongly pedoturbed tuffaceous chonites (paleosols). The lower fossiliferous horizon corresponds to the...

settings: lacustrine and fluvial deposits. Both of these have intervals of tuffaceous materials, suggesting the presence of volcanic activity. Palustrine littoral...

yellowish and greenish sandstones of fine-to-medium grain, some of which are tuffaceous. These deposits were laid down during the Upper Cretaceous, either in...

phenocrysts. Xenoliths include jasperised sediments and there are some beds of tuffaceous siltstone and sandstone. It was mostly deposited from the air without...

andesitic or tuffaceous mudstones, sandstones, and breccia. Next is the Bell Top Formation, which consists of rhyolite, basalt flows, and tuffaceous sandstones...

consists of layers of silts and clays with horizons consisting of unrefined tuffaceous and pumiceous sandstone and fine conglomerates. The formation is exposed...

limestone, tuff and reworked sandy tuffs, calcareous sandstone and partly tuffaceous shale. Like most areas in the province of Laguna, the climate of Santa...

calcareous mudstones though also include clays, shales and marls with marly, tuffaceous and shelly limestones, occasional oolitic and sandy strata, and evaporites...

while the Pakhtusov Islands consist of andesites, rhyolites, tuffs, and tuffaceous sediments. The islands exhibit low-mountain terrain. Zheltukhin Island...

gliding mammal (Volaticotherium) have been discovered in these rocks.The tuffaceous composition of some rock layers show that this was a volcanic area, occasionally...

Uranium production has been minor.[citation needed] Uranium was mined from tuffaceous conglomerate and sandstone of the Miocene Spor Mountain Formation at the...

Ichishi Group, which dates to the Lower Miocene period. The Kamimitsugano tuffaceous sandstone members of the Oi Formation were found to contain two of the...

Patagonia, Argentina. The 170 metres (560 ft) thick formation comprises tuffaceous mudstones and sandstones deposited in a crater lake environment and crops...

mouth of the Kakogawa River, and the coastline is mostly reclaimed land. Tuffaceous rocky mountains are scattered throughout the city area, and the quarrying...

sandstones 10–12 meters thick. The base of the sequence includes layers of tuffaceous argillites and bentonite. Some major mineral constituents include mica...

strata exposed are yellowish and greenish sandstones that are occasionally tuffaceous (i.e. bearing volcanic ash), which belong to the Cenomanian-Turonian Huincul...

pillow lava) Precambrian to Devonian Basement rocks (various plutonic and volcanic rocks, ophiolites, turbidites tuffaceous and metasedimentary rocks)...

fault system, particularly the Calaveras Fault and its extensions. White tuffaceous rocks of the Orinda Formation occur in bands among the hills on the western...

3–4.9 Ma PreꞒ Ꞓ O S D C P T J K Pg N Type Formation Lithology Primary Tuffaceous sandstone Location Coordinates 45°30′N 118°48′W / 45.5°N 118.8°W /...

conglomerate with breccia, but also contains strata of shale and tuff, tuffaceous sandstone, and sandstone conglomerate (parts of the Upper Yixian are also...

yellowish and greenish sandstones of fine-to-medium grain, some of which are tuffaceous. These deposits were laid down during the Upper Cretaceous, either in...

depositional settings: lacustrine and fluvial deposits, that have intervals of tuffaceous materials, suggesting this environments coevolved with volcanic activity...

43 Mya. The beds are composed of silica and calcium carbonate cemented tuffaceous sandstones, siltstones, and conglomerates which preserve either a lake...

in thickness, likely due to extensive erosion. There are two prominent tuffaceous zones used by Galusha and Blick for regional correlation. Each is about...

largely covered by Jurassic Period acid volcanic rocks and Cretaceous tuffaceous sandstone. However, there are rocks of a variety of ages including the...

and intrusive rocks. Metasediments of mostly mafic and intermediate tuffaceous composition are cut by dikes (intrusive rock). Below the lower volcanic...

Urquhart is 1,000 metres (3,300 ft) thick and is a grey dolomitic shale with tuffaceous horizons. Near the ore horizons the shale is pyritic. The orebodies are...

In general, the geology the upstream of Ciliwung basin is dominated by Tuffaceous Breccia and older deposits of lahar and lava. The middle reach consists...

group also include minor beds of bentonite and tuff. In the type area, tuffaceous mudstones are widespread in the top portion of the formation, but they...

volcanic sediment. Where the associated forest floor is covered by white tuffaceous sandstone, parts of the trunks are totally carbonized. Two other distinct...

deposit of limestone, basalt, and a minor amount of calcareous siltstone, tuffaceous and calcareous mudstone. Fossil records of ammonites and halobiids in...

150 m (492 ft) of volcaniclastic turbidite beds with subordinate beds of tuffaceous breccias and dacitic tuffs. They are similar to the volcaniclastic rocks...

Jubilee, where pale red and grey conglomerates, mudstones, sandstones and tuffaceous rocks support occasional silcrete caps, as well as at Haasvlakte. Laterally...

visible sedimentary structures, but with calcareous concretions. The tuffaceous sediments contain pieces of white pumice with a vesicular character up...

and quartzite-like sandstones and basaltic lava and tuff with lenses of tuffaceous argillite. The Late Cretaceous strata is overlain by basaltic lavas ranging...

Through Infrared Stimulated Luminescence Dating of Potassium Feldspar from Tuffaceous Sediment" (PDF). California Archaeology. 11 (1): 5–20. doi:10.1080/1947461X...

mudstone with frequent channel/sheet sandstone lenses and occasional tuffaceous deposits. It is laterally equivalent to the Qigu Formation in the southern...

rock formations found on Antarctica. The specimens were discovered in tuffaceous siltstone deposited in the Sinemurian to Pliensbachian stage of the Early...

Tridentinosaurus holotype specimen, MGP-PD 26567, was discovered in 1931 in tuffaceous sandstone layers of the Regnana Formation ('Stramaiolo' (Redebus) locality)...

formation of the Borbón Basin in northwestern Ecuador. The bioturbated, tuffaceous, green mudstones and sometimes sandstones with small or medium-sized rounded...

43 Mya. The beds are composed of silica and calcium carbonate cemented tuffaceous sandstones, siltstones, and conglomerates which preserve either a lake...

the Church Stretton lineament. There is a clear distinction between the tuffaceous rocks of the Uriconican Volcanics (dark brown/black/grey) and the intrusive...

The rocks in east of Lahad Datu are mixed volcanic and sedimentary: tuffaceous sandstones and conglomerate mixed with Ayer, Tabanak and Tungku formations...

weathering, and buff medium-grained micaceous buff to ochre weathering tuffaceous medium-grained with inter-bedded calcareous rocks. Towards the upper 800 ft...

consist of massive sheet beds of vitric and crystal tuffs and chonites, tuffaceous mudstones and claystones with moderate bioturbation and pedified tops...

are capped by the Arikaree Formation (lower Miocene), which includes tuffaceous sandstones and conglomerates that have protected the softer underlying...

formation at the Cerro la Bruja paleontological site is characterized by tuffaceous sandstones, siltstones and diatomaceous siltstones with a basal conglomerate...

Layers of fine volcanic ash deposits formed the light grey coloured tuffaceous layers interbedded with the brownish Cretaceous sediments. Ma Shi Chau...

mountain. This includes interlayered unconsolidated fluvioglacial and tuffaceous deposits, tills and glacial erratics at the base of tuffs and lava flows...

features rocks of Silurian and Devonian periods (jasper, siliceous shale, tuffaceous sandstones, conglomerates, serpentinite, and others.) The limestone outcrops...

the area. They are of Pliocene age, overlying diatomite, pumice, and tuffaceous sandstone layers. Most of the volcanoes in the Oregon Cascades are either...

miles) southeast of Rome. The historic part of the town is situated on a tuffaceous hill, 303 metres (994 feet) above sea level, part of a morphological system...

alluvial clays, silts, and sands that contain layers of conglomerate, tuff, tuffaceous sandstone, coal, and, at top, rhyolite. The Late Cretaceous sediments...

States) in the Paleobiology Database. Retrieved June 2013. Morawan (Upper tuffaceous Siltstone Member) (Oligocene of Japan) in the Paleobiology Database. Retrieved...

Quebrada Formation is finer than the lower portion, with shale and fine tuffaceous sandstone being common and conglomerate only reappearing at the youngest...

sandstone with abundant lithic and feldspar grains. The sandstone is locally tuffaceous and exhibits, in some exposures, low-angle, dm-thick bedforms that are...

43 Mya. The beds are composed of silica and calcium carbonate cemented tuffaceous sandstones, siltstones, and conglomerates which preserve either a lake...

Sole highway, above what remained of a rock necropolis carved into the tuffaceous wall on which the built area itself stands, close to a very ancient ford...

dating back to the Pliocene period. The Charco Azul Formation comprises tuffaceous shales deposited in a deep marine environment The formation unconformably...

and ranges between 10-20 m in thickness. Under these strata there are tuffaceous layers containing palms. The succession between the two is interrupted...

in the Galice Formation was composed of radiolarians, terrigenous and tuffaceous detritus, and hydrothermal sediment. Ochoa, Jesús; Wolak, Jeannette; Gardner...

Southern Craton, it is primarily composed of a small tilted layer of tuffaceous sediments, mafic lava and felsic volcanic rocks, making up the Bellary...

the Amador and Auburn soils are more common. These soils derive from tuffaceous sediments, similar to the Pentz and Peters soils, although the Auburn...

fossils exhibit exceptional three-dimensional preservation; the presence of tuffaceous sandstone and conglomerate debris flow deposits suggests that the animals...

of the felsic volcanic sequence, within a sequence of volcaniclastic tuffaceous epiclastics, cherts, sediments or perhaps fine tuffs which are usually...

consists primarily of air-filled tuffs and other units reworked from tuffaceous material. The fact that the member is composed of volcanic material indicates...

the late Cretaceous, kimberlite, carbonatite, olivine melilitite and tuffaceous diatreme intruded the Sao Francisco Craton. Magmatic activity also took...

43 mya. The beds are composed of silica and calcium carbonate cemented tuffaceous sandstones, siltstones, and conglomerates which preserve either a lake...

43 mya. The beds are composed of silica and calcium carbonate cemented tuffaceous sandstones, siltstones, and conglomerates which preserve either a lake...

volcanic ash which hardened into sedimentary rock, becoming fine-grained tuffaceous shales of the Klondike Mountain Formation. The fossils include various...

43 mya. The beds are composed of silica and calcium carbonate cemented tuffaceous sandstones, siltstones, and conglomerates which preserve either a lake...

beds contains considerable latite to andesite breccia interbedded with tuffaceous claystone and siltstone. The Palm Park Formation rests gradationally on...

lagoonal depositional environment and consists mostly of sandstone and (tuffaceous) mudstone. Aside from this, reworked tuff was also found at the top of...

Formations at USGS Mehama Formation at Fossilworks.org Undifferentiated tuffaceous sedimentary rocks, tuffs, and basalt - Mehama Formation at USGS Pittsburg...

steppe containing deep river canyons, barren lava fields, badlands, and tuffaceous outcrops that are riddled by caves. Elevation varies from 2,500 to 6,600 feet...

northwest-most moraine-covered volcanic outcrops on the island, upon which occur tuffaceous conglomerate block and shell fragments of the Scallop Hill Formation....

Moose Mountain flora had been performed. Using crystals obtained from tuffaceous sandstones, Argon–argon dating provided an age of 14.91 ± 0.23 Ma placing...

Formation formed mostly from volcanic particles in the form of tuff and tuffaceous sandstone. These beds are from 100 m to 3 km thick. In the Oligocene the...

also discovered in the Morawan Formation of Japan, but from the Upper Tuffaceous Siltstone Member, which also represents a basinal depositional environment...

specimens are preserved as lichen adpression fossils left on a yellowish tuffaceous mudstone matrix. In total, five specimens containing D. ciliiferus lichen...

Silurian Periods. Silurian rocks were mainly composed of interlayers of tuffaceous rocks and fine-grained clastic rocks formed in marine environment. The...

6 ma. Sandstone, diatomaceous clay, shale. Not recorded. 4 ~11.2 ma. Tuffaceous and diatomaceous clay, siltstone, sandstone, phosphate pebble bed. Cetacean...

usually very fine grained and laminated to thin-bedded. There may also be tuffaceous rocks, although multiple studies have struggled to pin-point exactly what...

followed by uniform sequences, variable in thickness, of whitish-ocher tuffaceous paleosols with concretions and whitish-gray tuffs with intercalations...

yellowish and greenish sandstones of fine-to-medium grain, some of which are tuffaceous. These deposits were laid down during the Upper Cretaceous, either in...

depositional settings: lacustrine and fluvial deposits, that have intervals of tuffaceous materials, suggesting this environments coevolved with volcanic activity...

1016/0301-9268(76)90029-2. ISSN 0301-9268. Nelson, D. R. (2001). 168961: welded tuffaceous rhyolite, Marda Tank. Geochronology Record, 195. Geological Survey of...

deposition. The basal most 122 meters of the formation in made up of tuffaceous sandstone and sandy siltstone which overlies the Eocene Skookumchuck Formation...

texture of calcareous spherulites (bead-like grains). Black Shale, coarse tuffaceous limestone, silica (chert and chalcedony), pyrite, gypsum, and tuff beds...

depositional settings: lacustrine and fluvial deposits, that have intervals of tuffaceous materials, suggesting this environments coevolved with volcanic activity...

Formation influences on deeper soil layers include volcanic cobbles and tuffaceous sands from the Ellensburg Formation. The Rattlesnake Hills, at or above...

consists of the Whitehill-characteristic carbonaceous black shales. A tuffaceous zone occurs within the Whitehill Formation a few metres below the stratigraphic...

part of the mountain community of Ufita. Its land is mostly clayey and tuffaceous, and is mainly mountainous. The municipal countryside covers an area of...

Galilee Basin contains up to 3000m of siliciclastics, coal, diamictite and tuffaceous units. The basin has three main depocentres: Lovelle Depression (>730...

cross-bedding, cross-lamination, and pronounced graded bedding. Layers of tuffaceous sandstone are commonly mixed in with conglomerate or conglomeratic sandstone...

43 mya. The beds are composed of silica and calcium carbonate cemented tuffaceous sandstones, siltstones, and conglomerates which preserve either a lake...

in the first year of the Koan era (1278); the West Pagoda is made of tuffaceous breccia, stands 5.62 m in total height, and was constructed in the fourth...

consists of 600mm of tillite, varved shale, aqueo-glacial conglomerate, tuffaceous sandstone, and mudstone. Osborne (1925) recognised three tillite and three...

Yeilagh, andesitic-basaltic units of Niur Formation in Central Iran, and tuffaceous materials in the upper parts of Mila Formation in Eastern Iran. Volcanic...

Pandita, S. K.; Prasad, G. V. R. (2008-03-01). "Depositional origin of tuffaceous units in the Pliocene Upper Siwalik Subgroup, Jammu (India), NW Himalaya"...

dark shale with minor sandstone and black limestone. The upper beds are tuffaceous sandstone with minor black limestone. A basalt flow and an andesite breccia...

Environmentally, Jianianhualong lived in a lacustrine area, as evinced by the tuffaceous sandstone present throughout the Dawangzhangzi Beds. Like the rest of...

Formation. They are - Hakarimata Formation of indurated siltstones and tuffaceous sandstones, with other siltstones and conglomerates, Marakopa Formation...

simultaneous activity of massive sulfide formation at Perseverance and tuffaceous sedimentation on the seabed. He then presented a possible explanation...

over 3,000 meters (9,800 ft) of dark green tuffaceous diamictite, which contains minor layers of tuffaceous rocks, metamorphosed buff calcareous sandstone...

recovered from Mount Berlin. Both welded and unwelded pyroclastic and tuffaceous breccias are present. They consist of lava bombs, lithic rocks, obsidian...

fluvial and lacustrine conglomerate, sandstone, and mudstone, with minor tuffaceous and limestone beds. The following fossils have been reported from the...

Bluewater Creek Member was separated from overlying strata by a distinct tuffaceous sandstone layer (the "SMC bed") at Six Mile Canyon. The age of the SMC...

43 mya. The beds are composed of silica and calcium carbonate cemented tuffaceous sandstones, siltstones, and conglomerates which preserve either a lake...

Fault. The Minfordd Formation is a sandstone dominated epiclastic and tuffaceous lithology which has a broad upward fining sequence with the presence of...

settings: lacustrine and fluvial deposits. Both of these have intervals of tuffaceous materials, suggesting the presence of volcanic activity. Palustrine littoral...

Moose Mountain flora had been performed. Using crystals obtained from tuffaceous sandstones, Argon–argon dating provided an age of 14.91 ± 0.23 Ma placing...

contains volcanogenic conglomeratic sandstone, fine-grained tuffite and tuffaceous sediment. This Precambrian volcano-sedimentary group incorporates over...

years ago. The beds are composed of silica and calcium carbonate cemented tuffaceous sandstones, siltstones, and conglomerates which preserve either a lake...

crops out in Newfoundland, which consists of gray sandstones and rare tuffaceous rocks. It also preserves fossils dating back to the Ediacaran period,...

43 mya. The beds are composed of silica and calcium carbonate cemented tuffaceous sandstones, siltstones, and conglomerates which preserve either a lake...

Jurassic Prebble Formation (0–460 m) volcanic conglomerate, tuff and tuffaceous sandstone. The Aztec sandstone contains units bearing body fossils of...

typical of the area. They are derived primarily from broken-down basalt and tuffaceous materials. Crane Mountain is near the northern end of the Warner Mountains...

meters of sandstone and claystone, topped by 1 meter of green-brownish tuffaceous rocks. The tuff contains mostly lapilli (30–50%) and ash, with some red...

Group, subdivided into the Tinacoa and Macoíta Formations, a series of tuffaceous sandstones, limestones, shales and siltstones. The sedimentary sequence...

Late Jurassic to Early Cretaceous Guoqu Group -Rock Types: Conglomerate, tuffaceous sandstone, and slate. Greenschist-facies metamorphism. Similar to the...

siltstone with subordinate sandstone and some local thin bentonitic and tuffaceous beds. In 1965, Canadian geologist John Oliver Wheeler foresaw the need...

Moose Mountain flora had been performed. Using crystals obtained from tuffaceous sandstones, Argon–argon dating provided an age of 14.91 ± 0.23 Ma placing...

third deglaciation sequence (297 Ma) was determined from zircons of a tuffaceous bed sampled in a roadcut in the Western Cape Province, South Africa. Among...

Country Argentina, Chile Extent Rocas Verdes Basin  Magallanes & Malvinas Basins Type section Named for Spanish for "tuffaceous" Tobífera Formation (Chile)...

by Fernández et al. (2021). Evidence from middle Eocene-middle Miocene tuffaceous deposits of central and northern Patagonia, indicating that soils, vegetation...