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Fine grained sedimentary rock whose original constituents were clays or muds
Mudstone, a type of mudrock, is a fine-grained sedimentary rock whose original constituents were clays or muds. Mudstone is distinguished from shale by
Mudstone
Group of Triassic rocks in the United Kingdom
The Mercia Mudstone Group is a middle to late Triassic lithostratigraphic group (a sequence of rock strata) which is widespread in Britain, especially
Mercia_Mudstone_Group
Geologic formation in Wales
Llanfawr Mudstones is a geologic formation in central Wales. It preserves fossils dating back to the Ordovician period. The Llanfawr Mudstone Formation
Llanfawr_Mudstones
Geological formation in Yorkshire, England
The Whitby Mudstone is a Toarcian (Early Jurassic; Falciferum-Bifrons in regional chronostratigraphy) geological formation in Yorkshire and Worcestershire
Whitby_Mudstone
Geological formation in England
The Scunthorpe Mudstone is a geologic formation in England. It preserves plesiosaur fossils dating back to the Late Triassic (Rhaetian) to Early Jurassic
Scunthorpe_Mudstone
Geological group in northwest/mid Wales
The Broad Vein Mudstone Formation (commonly known as the Broad Vein, historically known as the Red Vein and in Welsh as Y Faen Goch) is an Ordovician lithostratigraphic
Broad_Vein_Mudstone_Formation
Geological formation in England
The Charmouth Mudstone Formation is a geological formation in England, dating to the Early Jurassic (Sinemurian–Pliensbachian). It forms part of the lower
Charmouth_Mudstone_Formation
Triassic lithostratigraphic group in southwest England
The Aylesbeare Mudstone Group is an early Triassic lithostratigraphic group (a sequence of rock strata) in southwest England. The name is derived from
Aylesbeare_Mudstone_Group
Geologic formation in Zambia and Zimbabwe
Madumabisa Mudstone Formation is a geologic formation in the Middle to Late Permian of Zambia and Zimbabwe. It comprises ancient lake and river mudstone exposed
Madumabisa_Mudstone_Formation
Geological group in northwest Wales
The Narrow Vein Mudstone Formation (commonly known as the Narrow Vein) is an Ordovician lithostratigraphic group (a sequence of rock strata) in Mid Wales
Narrow Vein Mudstone Formation
Narrow_Vein_Mudstone_Formation
Tendency of a rock to split along flat planes of weakness
Planes of weakness are developed in sedimentary rocks such as shale or mudstone by clay particles aligning during compaction. Planes of weakness are developed
Fissility_(geology)
Geologic formation in California, U.S.
The Santa Cruz Mudstone is a geologic formation in California. The siliceous organic mudstones of the formation were deposited in deep water and fluvial
Santa_Cruz_Mudstone
Geologic formation in Wales
The Bodeidda Mudstone is a geologic formation in Wales. It preserves fossils dating back to the Ordovician period. Earth sciences portal Wales portal Paleontology
Bodeidda_Mudstone
Type of sedimentary rock
sedimentary rocks. The varying types of mudrocks include siltstone, claystone, mudstone and shale. Most of the particles of which the stone is composed are less
Mudrock
Geological formation in North Yorkshire, England
The Redcar Mudstone Formation is a geological formation in North Yorkshire, England. Part of the Lias Group, it was deposited in the Hettangian to Pliensbachian
Redcar_Mudstone_Formation
Sequence of rock strata found in a large area of western Europe
Charmouth Mudstone Blue Lias In the East Midlands Shelf the Lias is divided into the following formations (from top to base): Whitby Mudstone Marlstone
Lias_Group
Late Jurassic geological formation in Ethiopia
The Mugher Mudstone is a geologic formation located in Ethiopia. It dates to the Tithonian stage of the Late Jurassic. The lithology consists of gypsum
Mugher_Mudstone
Rock formation in the USA
silty, argillaceous mudstones, silty, calcareous mudstones, and dolomitic mudstones and dolomites. The silty, argillaceous mudstones contain more than 30%
Haynesville_Shale
Geologic formation in Wales
The Slade Mudstone is a geologic formation in Wales. It preserves fossils dating back to the Ordovician period. Earth sciences portal Wales portal Paleontology
Slade_Mudstone
Geologic formation in Wales
The Redhill Mudstone is a geologic formation in Wales. It preserves fossils dating back to the Ordovician period. Earth sciences portal Wales portal Paleontology
Redhill_Mudstone
Rock formation in the western United States
fertile source of dinosaur fossils in North America. It is composed of mudstone, sandstone, siltstone, and limestone and is light gray, greenish gray,
Morrison_Formation
Stratigraphic Unit in the Northeastern United States
and black very fine grained sandstone, silty argillite, and laminated mudstone. In New Jersey, the cyclic nature of the formation is noted with hornfels
Lockatong_Formation
Geologic formation in Tunisia
lithology consists of coarse sandstones with occasional conglomerates and mudstones. Dinosaur remains are among the fossils that have been recovered from
Aïn_el_Guettar_Formation
Geologic formation in England
The Crugan Mudstone is a geologic formation in England. It preserves fossils dating back to the Ordovician period. Earth sciences portal England portal
Crugan_Mudstone
Geological term for rock in south Wales
‘Basal Grit’) which is overlain by the Bishopston Mudstone and the Telpyn Point Sandstone. The mudstones of these latter two formations was formerly known
Marros_Group
Extinct genus of dicynodonts
have been discovered in what is now Zambia from rocks of the Madumabisa Mudstone Formation, which it is named after. The type and only known species is
Madumabisa
Jurassic rock formation in southeast England
facies comprises the Peterborough Member, a fossiliferous organic-rich mudstone. This facies and its rocks are commonly known as lower Oxford Clay. The
Oxford_Clay
Sedimentary rock, mostly of indurated clay particles
of shale is developed. Another name for poorly lithified argillites is mudstone.[citation needed] These rocks, although variable in composition, are typically
Argillite
The Duyfor Mudstone is a geologic formation in England. It preserves fossils dating back to the Ordovician period. Earth sciences portal England portal
Duyfor_Mudstone
marine band mudstone Six Inch Mine (coal seam) mudstone Sand Rock Mine (coal seam) mudstone Rough Rock mudstone Upper Haslingden Flags mudstone Lower Haslingden
Geology_of_Merseyside
5.3 hectare geological Site of Special Scientific Interest
part of the cliff is a red mudstone, with bands of nodules of pinkish-white alabaster. Above the red mudstone is green mudstone, followed by the Rhaetic
Aust_Cliff
Large spherical boulders on Otago coast, New Zealand
grey-coloured septarian concretions, which have been exhumed from the mudstone and bedrock enclosing them and concentrated on the beach by coastal erosion
Moeraki_Boulders
In geology, a type of compact mass
the original sediments. Septarian concretions are found in many kinds of mudstone, including lacustrine siltstones such as the Beaufort Group of northwest
Concretion
Archaeological artifacts from predynastic Egypt
Naqada I. Mudstone palette in the form of a bull, with inlaid shell eyes Predynastic, Naqada I 4000-3600 BC EA 20910 (British Museum) Mudstone cosmetic
Cosmetic_palette
Geologic formation in North Carolina, United States
Formation is a metavolcanic rock and mudstone geologic formation in North Carolina. It consists of a lower unnamed mudstone member with intermittent volcanic
Cid_Formation
Genus of giant ichthyosaurs
ichthyosaur from the Late Triassic (Rhaetian), known from the Westbury Mudstone Formation in Somerset, England. It is believed to be a shastasaurid, extending
Ichthyotitan
Human settlement in England
fossil-hunting given the extreme paucity of examples in the bulk of the mudstone: the cliffs are relatively soft and easily weathered, with parts subject
Fossil_Beach_(Sedbury_Cliffs)
Hill in Powys, Wales and Shropshire, England
Mudstone Formation (mudstone) (including the Mottled Mudstone Member) Tarannon Mudstone Formation (mudstone) Cefn Formation (mudstone, sandstone) The first
Long_Mountain_(Powys)
Geological formation in England
order, i.e., the oldest at the base and the youngest at the top): Pilton Mudstone Formation (Pilton Beds, Pilton Shales) Baggy Sandstones Formation (Baggy
Exmoor_Group
Easily split medium-grained metamorphic rock
including sedimentary rocks such as mudstones and igneous rocks such as tuffs. Schist metamorphosed from mudstone is particularly common and is often
Schist
Geologic formation in Oklahoma, Nebraska, and Kansas
comprising varicolored black, brown, gray, green, red, and blue shales, mudstones, and limestone, some of which representing Permian paleosols. Earth sciences
Roca Formation (United States)
Roca_Formation_(United_States)
Geologic formation in Mongolia
conglomerates, siltstones, fluvial (water-deposited) sandstones, and mudstones. The entire thickness of the formation in the Ulan Nur Basin is at least
Djadochta_Formation
Islands of Antarctica
300; -57.867. A cluster of small islands between Ponce Island and Pebbly Mudstone Island in the southeast part of Duroch Islands. The group lies 0.5 nautical
Duroch_Islands
continental freshwater deposits largely of alternating sandstones and mudstones. The Group is notable for its fossil content, including those of dinosaurs
Khorat_Group
Mixture of water and any combination of soil, silt, sand, and clay
hardened over geological time to form sedimentary rock such as shale or mudstone (generally called lutites). When geological deposits of mud are formed
Mud
Earth's highest mountain
metamorphism of Middle to Early Cambrian deep sea flysch composed of interbedded, mudstone, shale, clayey sandstone, calcareous sandstone, graywacke, and sandy limestone
Mount_Everest
Capital city of Victoria, Australia
built on the confluence of Quaternary lava flows to the west, Silurian mudstones to the east, and Holocene sand accumulation to the southeast along Port
Melbourne
Rhaetian age (Triassic) rock strata sequence
and Cotham Members, grey limestones of marine origin with associated mudstones, are recognised within the Lilstock Formation, itself named from Lilstock
Penarth_Group
Tall, thin spire of relatively soft rock usually topped by harder rock
typically form in areas where a thick layer of a relatively soft rock, such as mudstone, poorly cemented sandstone, or tuff (consolidated volcanic ash), is covered
Hoodoo_(geology)
Fossil insect
Lower Jurassic (ca 190 million years ago). It was found in the Charmouth Mudstone Formation, Dorset, United Kingdom. Archaeolepis means 'ancient scale',
Archaeolepis
Geologic formation in the United States
The Middlesex is a laminated, dark grey to black formation comprising mudstone and siltstone. It developed in an anoxic environment. Further evidence
Middlesex_Formation
Metamorphic rock
earth') or metapelite is a metamorphosed fine-grained sedimentary rock, i.e. mudstone or siltstone. The term was earlier used by geologists to describe a clay-rich
Pelite
UNESCO Global Geopark in England
uppermost/youngest, at top): Raglan Mudstone Formation (mudstone and siltstone) Temeside Mudstone Formation (mudstone, siltstone and sandstone) Downton
Black_Country_Geopark
Second period of the Mesozoic Era
Haven locality in Robin Hood's Bay, Yorkshire, England, in the Redcar Mudstone Formation, and was ratified in 2005. The beginning of the Pliensbachian
Jurassic
Foreland basin
lithofacies: thick-bedded turbidites, thin-bedded turbidites, mudstone and conglomeratic mudstone Thick and thinly bedded sandstones resemble deposits of mixed
Val_Verde_Basin
Geological formation in the United States
National Park Service. It is a series of fresh and brackish-water clays, mudstones, and sandstones deposited during the Maastrichtian and Danian (respectively
Hell_Creek_Formation
Geologic formation in Wales
The Camnant Mudstone is a geologic formation in Wales. It preserves fossils dating back to the Ordovician period. Earth sciences portal Wales portal Paleontology
Camnant_Mudstone
Geologic formation in Wales
The Haverford Mudstone is a geologic formation in Wales. It preserves fossils dating back to the Silurian period. Earth sciences portal Wales portal Paleontology
Haverford_Mudstone
sedimentary rock Marl – Lime-rich mud or mudstone which contains variable amounts of clays and silt Mudstone – Fine grained sedimentary rock whose original
List_of_rock_types
Geologic formation in British Columbia, Canada
period, or Wasatchian in the NALMA classification. The formation comprises mudstones, shales and tuffs deposited in a lacustrine environment and has provided
Coldwater_Beds
City in the West Midlands, England
To the south and east of the fault the ground is largely softer Mercia Mudstone, interspersed with beds of Bunter pebbles and crossed by the valleys of
Birmingham
Lime-rich mud or mudstone which contains variable amounts of clays and silt
the manufacture of cement. Marl or marlstone is a carbonate-rich mud or mudstone which contains variable amounts of clays and silt. The term was originally
Marl
Baldlands in Tianliao, Kaohsiung, Taiwan
erosion. The area features the Mudstone Geography Center at the entrance, providing information regarding the details of mudstone. It also has footpath for
Tianliao_Moon_World
Town near Swansea, Wales
Coalfield, by mudstones of the Mercia Mudstone Group in the Oxfordshire Coalfield and either the Sherwood Sandstone or Mercia Mudstone groups in the Bristol/Somerset
Gorseinon
Geological formation in Australia
The Allaru Formation, also known as the Allaru Mudstone, is a geological formation in Queensland, Australia, whose strata date back to the Early Cretaceous
Allaru_Formation
Ridge of sandstone that remains when the softer flood plain mudstone is eroded away
channel is a ridge of sandstone that remains when the softer flood plain mudstone is eroded away. The process begins with the deposition of sand within a
Exhumed_river_channel
Desert in Arizona
only by permit. The desert is composed of stratified layers of siltstone, mudstone, and shale of the Triassic Chinle Formation, which erode easily. These
Painted_Desert_(Arizona)
Order of insects
Early Jurassic (Toarcian) Genus †Priscaenigma Whalley, 1985 - Charmouth Mudstone Formation, United Kingdom, Early Jurassic (Sinemurian) Genus †Sukachevia
Snakefly
Geological formation in North America
The Terrenceville Formation is a formation cropping out in Newfoundland. These Formations are included in the 1995 publication of Geology of the Appalachian—Caledonian
Terrenceville_Formation
Geological unit of the Lower Cretaceous
The Ashdown Formation typically comprises sandstones, siltstones and mudstones. In the east of the county, the formation tends to be more argillaceous
Ashdown_Formation
Type of metamorphosed mudstone
Catlinite, also called pipestone, is a type of argillite (metamorphosed mudstone), usually brownish-red in color, which occurs in a matrix of Sioux Quartzite
Catlinite
British fossil collector and palaeontologist (1799–1847)
Earth. Anning searched for fossils in the area's Blue Lias and Charmouth Mudstone cliffs, particularly during the winter months when landslides exposed new
Mary_Anning
Submarine ridge between New Caledonia and New Zealand
16 Ma or probable Pliocene limestone, Cretaceous black shales, late Eocene mudstone and middle to late Eocene sedimentary breccias. There are at least seven
Norfolk_Ridge
Protected area mostly in South West England
famous for their limestone lithologies, they also contain sandstones and mudstones. Within the Cotswolds area, the Great Oolite Group contains limestones
Cotswolds
Ancient Egyptian writing system
is not excluded, but probably reflects the reality." The Min Palette: a mudstone palette with the archaic hieroglyph Min for the god of fertility Min in
Egyptian_hieroglyphs
Geologic formation in Scotland
Scotland. The Group comprises a lower unit of coarse sandstones, siltstones, mudstone, and limestones with thin coals and ironstones known as the Lower Limestone
Clackmannan_Group
Coastal plain in western Lancashire, England
which "subcrop" in the east. The slightly younger mudstones and siltstones of the Mercia Mudstone Group are found west of a line drawn roughly between
The_Fylde
mudstone, limestone and mudstone, Sadong Formation sandstone, mudstone and coal seams, Kobangsan Formation coarse terrestrial sandstone and mudstone,
Geology_of_South_Korea
Triassic/Jurassic geological formation in the UK
These limestone-mudstone alternations pass up into a clay member formerly known as the Lower Lias Clay now the Charmouth Mudstone. This lithology consists
Blue_Lias
Geology of state of Australia
Neoproterozoic on the eastern side of the island with beds of diamictite, dolomite, mudstone, tholeiite, and picrite interleaved with conglomerate. Also dykes of augite
Geology_of_Tasmania
Study of natural sediments and their formation processes
affinity to source regions The longstanding understanding of how some mudstones form has been challenged by geologists at Indiana University (Bloomington)
Sedimentology
Mountain range in Australia
shallow sea covered the region, when rivers brought shales, siltstones and mudstones. Then during the Mesozoic period, rivers dumped vast amounts of sand,
Blue Mountains (New South Wales)
Blue_Mountains_(New_South_Wales)
Geological formation in Oaxaca, Mexico
Overlies Consuelo Group, Tecocoyuncan Group Lithology Primary Shale Other Mudstone, wackestone, marl Location Coordinates 17°18′N 97°42′W / 17.3°N 97.7°W
Sabinal_Formation
Old terminology for clayey sedimentary rock
including calcisiltite, calcilutite, claystone, mudstone, shale, and siltstone. It is equivalent to the term mudstone and the Greek-derived term pelite. Lutite
Lutite
Series of mountain ranges in Wales
are predominantly formed from Ordovician and Silurian sandstones and mudstones which in many areas outcrop only infrequently so resulting in more rounded
Cambrian_Mountains
Human settlement in Wales
argillaceous, comprising mudstones and siltstones, with well developed coals; minor lithic ("Pennant") sandstones; locally developed red mudstones in the type area
Grovesend
Early Cretaceous geological formation in England
overlies the Durlston Formation. The dominant lithology of this unit is mudstone with some interbedded sandstones. It is part of the strata of the Wessex
Wessex_Formation
Third and final epoch of the Triassic Period
[Contribution to a monograph on the colored sandstone, shell limestone and mudstone, and the joining of these structures into one formation] (Stuttgart and
Late_Triassic
Geologic formation in New Zealand
South. The Group is predominantly composed of deep water sandstone and mudstone (flysch). The sandstone dominated units form the cliffs around the Waitemata
Waitemata_Group
Stratigraphic unit in the Western Canada and Williston sedimentary basins
rocks (halite, anhydrite and potash), with lesser amounts of dolomitic mudstone and shale. Some of the carbonate formations of the Elk Point Group contain
Elk_Point_Group
Extinct genus of mammal ancestors
Wantulignathus is genus of biarmosuchian therapsid from the Madumabisa Mudstone Formation, Zambia. It is known from fragmentary lower jaws and ribs. "Fossilworks:
Wantulignathus
eastern Highlands of Scotland. It is a hornfels developed from calcareous mudstone. Calcflinta is also found, for example, around the margin of the granites
Calcflinta
gorgonopsian specimen from the Permian strata of the upper Madumabisa Mudstone Formation (Zambia), providing evidence of slower growth than in gorgonopsians
2025_in_paleontology
System for carbonate sedimentary rocks
the basis of these criteria, the following four classes were defined: Mudstone a mud-supported carbonate rock containing <10% grains. Wackestone a mud-supported
Dunham_classification
Third period of the Paleozoic Era
Ordovician-Silurian boundary on Hovedøya, Norway, showing brownish late Ordovician mudstone and later dark deep-water Silurian shale. The layers have been overturned
Silurian
Extinct genus of crocodilians
Early Jurassic (Toarcian). Fossil specimens have been found in the Whitby Mudstone of England and Posidonia Shale of Germany. The only known species, M. laurillardi
Mystriosaurus
of Stenopterygius quadriscissus from the Toarcian strata of the Whitby Mudstone Formation (United Kingdom) and revise the species of the genus Stenopterygius
2026_in_reptile_paleontology
Study of rock layers and their formation
lava. Oriented paleomagnetic core samples are collected in the field; mudstones, siltstones, and very fine-grained sandstones are the preferred lithologies
Stratigraphy
Historic castle in Suffolk, England
from Caen in Normandy, the remainder of the stone being variously local mudstone and coralline, as well as limestone from Northamptonshire. The basement
Orford_Castle
Geological formation in England
Underlies Whitby Mudstone Formation Overlies Staithes Sandstone Formation Thickness up to 25 metres (80 ft) Lithology Primary Mudstone, Siltstone, Ironstone
Cleveland_Ironstone_Formation
MUDSTONE
MUDSTONE
MUDSTONE
MUDSTONE
Girl/Female
Polish
Rose.
Girl/Female
Tamil
Lookeshwari | லூகேஷà¯à®µà®¾à®°à¯€Â
King of the empire
Girl/Female
English American
Festive party.
Boy/Male
Tamil
Flute
Boy/Male
Hindu, Indian
Rich
Male
German
Old German equivalent of Anglo-Saxon Bertulf, BARDAWULF means "bright wolf."Â
Surname or Lastname
Irish
Irish : Anglicized form of Gaelic Ó Coileáin and Mac Coileáin (see Cullen 1).English : patronymic from the Middle English personal name Col(l)in, a pet form of Coll, itself a short form of Nicholas.Americanized form of French Colin.
Boy/Male
Arabic, Muslim
Ornament; Beauty
Surname or Lastname
English
English : occupational name for a servant of a man called Bright’, or a variant of Bright 1.
Boy/Male
Indian
Bright, Hero, Truthfulness, Dominion, Crown
MUDSTONE
MUDSTONE
MUDSTONE
MUDSTONE
MUDSTONE