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Particles of rock derived from weathering and erosion
Detritus (/dəˈtraɪtəs/; adj. detrital /dəˈtraɪtəl/) is particles of rock derived from pre-existing rock through weathering and erosion. A fragment of detritus
Detritus_(geology)
Topics referred to by the same term
Look up detritus in Wiktionary, the free dictionary. Detritus is dead or waste organic material. Detritus may also refer to: Detritus (geology), the particles
Detritus_(disambiguation)
Naturally occurring mineral aggregate
In geology, a rock (also called a stone) is any naturally occurring solid mass or aggregate of minerals or mineraloid matter. It is categorized by the
Rock_(geology)
Provenance, also known as geographic attribution, in geology refers to the origins or sources of particles within sediment and sedimentary rocks. Metamorphic
Provenance_(geology)
Rock formed by the deposition and cementation of particles
of sediments—i.e. particles made of minerals (geological detritus) or organic matter (biological detritus)—that have been accumulated or deposited at Earth's
Sedimentary_rock
Third and last period of the Mesozoic Era
CO;2. Shehan, P; Hansen, TA (1986). "Detritus feeding as a buffer to extinction at the end of the Cretaceous". Geology. 14 (10): 868–870. Bibcode:1986Geo
Cretaceous
the boundary for the Western Foothills terrane, which is shallow marine detritus from Miocene to Pleistocene. A deformation front forms the boundary with
Geology_of_Taiwan
Sedimentary rocks made of mineral or rock fragments
clasts, of pre-existing minerals and rock. A clast is a fragment of geological detritus, chunks, and smaller grains of rock broken off other rocks by physical
Clastic_rock
never exceeded 175–200 m (574–656 ft), and shallowed over time as bioherm detritus, and terrestrial sediments, filled the basin. Reef growth started in the
Geology_of_Gotland
Entirety of the layers of rock strata
down by volcanism or by deposition of sediment derived from weathering detritus (clays, sands etc.). This includes all its fossil content and the information
Geologic_record
First geological period of the Paleozoic Era
The Cambrian ( /ˈkæmbri.ən, ˈkeɪm-/ KAM-bree-ən, KAYM-) is the first geological period of the Paleozoic Era and the Phanerozoic Eon. The Cambrian lasted
Cambrian
Mass extinction event about 66 million years ago
Peter M.; Hansen, Thor A. (1986). "Detritus feeding as a buffer to extinction at the end of the Cretaceous" (PDF). Geology. 14 (10): 868–870. Bibcode:1986Geo
Cretaceous–Paleogene extinction event
Cretaceous–Paleogene_extinction_event
Archaeological site in California, United States
features called potholes. It is speculated that Red Hill cast out granitic detritus which fell into Fossil Falls. Water accelerates as it moves past the rocks
Fossil_Falls
The geology of New Caledonia includes all major rock types (igneous, sedimentary, and metamorphic), which here range in age from ~290 million years old
Geology_of_New_Caledonia
Study of natural sediments and their formation processes
rocks are important deposits formed from the accumulation of biological detritus, and form coal and oil shale deposits, and are typically found within basins
Sedimentology
Sand or sandstone which has a greenish color
Greensand forms in anoxic marine environments that are rich in organic detritus and low in sedimentary input. Having accumulated in marine environments
Greensand
The geology of Peru includes ancient Proterozoic rocks, Paleozoic and Mesozoic volcanic and sedimentary rocks, and numerous basins and the Andes Mountains
Geology_of_Peru
Marginal sea of the northeastern Indian Ocean
organisms. Their body protects the shore from the wind and waves, and their detritus are a part of the aquatic food chain. A significant part of the Thai mangrove
Andaman_Sea
Mountain range in India, Pakistan and Nepal
of sandstone and conglomerate rock formations, which are the solidified detritus of the Himalayas to their north; they are poorly consolidated. The sedimentary
Sivalik_Hills
The geological history of North America comprises the history of geological occurrences and emergence of life in North America during the interval of
Geological history of North America
Geological_history_of_North_America
Underwater geological structures associated with large-scale sediment deposition
deep-sea fans, underwater deltas, and submarine fans, are underwater geological structures associated with large-scale sediment deposition and formed
Abyssal_fan
Science of cave and karst systems
Karst caves. Cut off from the sunlight and steady deposition of plant detritus, caves are poor habitats in comparison with wet areas on the surface. Most
Speleology
Fictional organization from Terry Pratchett's Discworld novel series
named after Sam Vimes; and Torreyites detriti, named after the troll Detritus. The primary members of the Ankh-Morpork City Watch are (see the linked
Ankh-Morpork_City_Watch
Fine-grained sediment that accumulates on the floor of the open ocean
clay-size siliciclastic sediment; or some mixture of these, along with detritus (marine snow) included. Trace amounts of meteoric dust and variable amounts
Pelagic_sediment
Freshwater crustaceans
Crayfish feed on animals and plants, either living or decomposing, and detritus. The term "crayfish" is applied to saltwater species in some countries
Crayfish
Sedimentary basin in France
Bathonian with lacustrine limestones and in places with breccia-bearing detritus. This is followed by neritic limestones precipitated in calm conditions
Aquitaine_Basin
as the Marcellus Formation, begin to dominate in the rocks, composed of detritus eroded from the uplifted Acadian highlands to the west; they also indicate
Kaskaskia_sequence
Geologic formation
sea. The area may have been low-lying and swampy, receiving outflows of detritus and, sometimes, sand from streams and downwash from adjacent land. The
Kansas_City_Group
Island formed from coral and associated material
A coral island is a type of island formed from coral detritus and associated organic material. It occurs in tropical and sub-tropical areas, typically
Coral_island
Type of layering in sediment or sedimentary rock
In geology, a graded bed is a bed characterized by a systematic change in grain or clast size from bottom to top of the bed. Most commonly this takes
Graded_bedding
separated from mainland China by the Qiongzhou Strait, has a complex geological history that it has experienced multiple stages of metamorphism, volcanic
Geology_of_Hainan_Island
Occurrence in Earth's history recorded in geological strata
Hemming, Sidney R. (March 2004). "Heinrich events: Massive late Pleistocene detritus layers of the North Atlantic and their global climate imprint: HEINRICH
Geological_event
Sedimentary basin located along the coast of southern California
marine embayment. Rivers sourced in the highlands brought large amounts of detritus to the northeastern edge of the basin. During this period, the Topanga
Los_Angeles_Basin
Limestone quarried on the Isle of Portland, Dorset, England
micrite) which covered the sea floor. Small particles of sand or organic detritus, such as shell fragments, formed a nucleus, which became coated with layers
Portland_stone
Species of fish
are scarce so gizzard shad rely on detritus. Gizzard shad growth rates may be lower when they feed only on detritus (compared to zooplankton), and in reservoirs
American_gizzard_shad
Lake in the state of Minnesota, United States
only 8 feet (2.4 m) deep. The bottom of the lake consists of silt and detritus and has abundant curly-leaf pondweed in the spring months before it dies
Cedar Lake (McLeod and Meeker counties, Minnesota)
Cedar_Lake_(McLeod_and_Meeker_counties,_Minnesota)
Organic matter component of soil
is the organic matter component of soil, consisting of plant and animal detritus at various stages of decomposition, cells and tissues of soil microbes
Soil_organic_matter
Mountain building event caused by the collision of Laurentia, Baltica and Avalonia
the same peninsula. The Early Devonian Dingle Basin was the source of detritus deposition in the Late Devonian Munster Basin to the south (which covered
Caledonian_orogeny
Island in Alaska, United States
deposited in water and are composed chiefly of amorphous silica and fine detritus derived from a volcanic terrain. Igneous rocks are sparsely represented
Agattu
Sand ridge in Florida and Georgia (United States)
composed of recognizable clumps of wood in a matrix of amorphous organic detritus with pockets of peaty sand. Horizons of charcoal and fungal remains are
Trail_Ridge
Rock units in midwestern North America
the composition of sandstones from having a lot of Paleozoic-age rock detritus in Kansas to sandstones having all Precambrian crystalline rock debris
Dakota_Formation
Study of past life through fossils
the history of life. Paleontology overlaps the most with the fields of geology and biology. It draws on technology and analysis of a wide range of sciences
Paleontology
Dark-coloured sediments rich in organic matter
putrefaction and mud (or clay), respectively) is a term used in marine geology to describe dark-coloured sediments that are rich in organic matter. Organic
Sapropel
Conceptual column of water from the surface to the bottom of a body of water
organisms migrate to the surface to feed at night or live off the falling detritus from the epipelagic ecosystem. The bathypelagic zone extends from about
Water_column
Large groups of icebergs traversing the North Atlantic
Hemming, Sidney R. (2004). "Heinrich events: Massive late Pleistocene detritus layers of the North Atlantic and their global climate imprint". Reviews
Heinrich_event
Ring-shaped coral reef
there are no promontories other than reefs and islets composed of reef detritus" or "in an exclusively morphological sense, [as] a ring-shaped ribbon reef
Atoll
paleogeography of the India–Asia collision system is the reconstructed geological and geomorphological evolution within the collision zone of the Himalayan
Paleogeography of the India–Asia collision system
Paleogeography_of_the_India–Asia_collision_system
Body of water in flat, low-lying areas
sample mesocosms affected the decomposition of maize crop and willow oak detritus. While both species showed increased decomposition rates after nutrient
Bayou
Marine phylum of animals often with radial symmetries
strands, spines or tube feet on their raised arms. Others are scavengers and detritus feeders. Others again are voracious carnivores and able to lasso their
Echinoderm
Organic matter in soils resulting from decay of plant and animal materials
referred to as detritus. Since the respective stages of transformation are gradual, a precise distinction is not possible. Neither humus nor detritus is dead
Humus
Active collisional foreland basin in South Asia
upward siliciclastic succession that makes up the thickest accumulation of detritus derived from the Himalaya in the foreland basin. The deposits are continental
Himalayan_foreland_basin
Island in French Polynesia
skeletons, fishhooks, a harpoon point, net weights and scrapers. From the detritus of the settlement, it appears that the indigenous people fed mainly on
Ua_Huka
Natural gorge in Slovenia
the Radovna River flowed eastward. After being dammed by the ice and detritus of the Bohinj Glacier, the resulting lake cut a new path northeast through
Vintgar_Gorge
Geological formation in Antarctica
Carapace Sandstones hosted an alluvial plain that recovered all the volcanic detritus, being latter flooded and developing a lacustrine ecosystem. The described
Mawson_Formation
Genus of brachiopods within the class Lingulata
lives in burrows in barren sandy coastal seafloor and feeds by filtering detritus from the water. It can be detected by a short row of three openings through
Lingula_(brachiopod)
Freshwater loch in Stirlingshire, Scotland
it has been silted up for a distance of one-third mile (0.54 km) by the detritus laid down by the adjacent streams. In the northern part of the basin the
Loch_Chon
Loose, unconsolidated sediments deposited at the base of a hillslope
Center for American Archeology, Kampsville, Illinois. "colluvium | rock detritus and soil accumulated at the foot of a slope". www.merriam-webster.com.
Colluvium
Non-soluble organic matter in aquatic and soil systems
by sieving or filtration, this fraction includes partially decomposed detritus and plant material, pollen, and other materials. When sieving to determine
Particulate_organic_matter
Genus of trilobites
rounded animal, with a globose head and large eyes, and probably fed on detritus. Phacops is often found rolled up ("volvation"), a biological defense mechanism
Phacops
Mountain range in southeastern France
Piemont-Liguria Ocean. The deposition of animal material formed limestone, with detritus rocks, formed primarily from the erosion of marl from the Variscan orogeny
Vercors_Massif
Geologic formation in Oregon, United States
The Dalles Formation is a geologic formation in Oregon, mapped in the vicinity of The Dalles and adjacent Columbia River region. It consists chiefly of
Dalles_Formation
baselevel. Post on Clastic Detritus geoblog. Wheeler, Harry E. (1964). Baselevel, Lithosphere Surface, and Time-Stratigraphy. Geological Society of America Bulletin
Harry_E._Wheeler
Upland region in Russia
deposited glacial materials in the form of terminal moraines and other detritus. The Valdai Hills reach their maximum height of 346.9 m (1,138 ft) near
Valdai_Hills
Species of crayfish
They may also eat small fish, insects, rotting animal flesh and other detritus when available. A. gouldi is very long-lived, surviving for up to 60 years
Tasmanian giant freshwater crayfish
Tasmanian_giant_freshwater_crayfish
Genus of extinct jawless fish
or crustaceans hidden in the mud and algae, as well as sifting through detritus (inferred from its lack of jaws and inability to bite). The genus Cephalaspis
Cephalaspis
Inscribed boulder in New Mexico
pre-Columbian ancient Hebrew settlements, no sites containing the everyday detritus of a band of ancient Hebrews, nothing that even a cursory knowledge of
Los_Lunas_Decalogue_Stone
Areas of seawater, freshwater, or groundwater that are depleted of dissolved oxygen
if the rate of oxidative decomposition (aerobic digestion) of organic detritus by aerobic microorganisms (mainly fungi and aerobic bacteria) is greater
Anoxic_waters
Mountain pass and archaeological site in Colorado, USA
seen on the northern slope of the rock wall at Yankee Doodle Lake; the detritus from the attempted excavation of the tunnel was placed at the northernmost
Rollins_Pass
Lake near Sagle, Bonner County, Idaho, United States
the continuation of Cocolalla Creek. Most of the lake bottom is silt and detritus. Shore areas with a sandy bottom include the state park swimming beach
Round Lake (Bonner County, Idaho)
Round_Lake_(Bonner_County,_Idaho)
Pacific island of Colombia
side of the island there are white sand beaches made up of coral reef detritus. On the western (oceanic) side there are mostly cliffs battered by the
Gorgona_Island_(Colombia)
Growth of a river delta into the sea over time
off northwest Britain: Recording the detritus of episodic uplift on a passive continental margin" (PDF). Geology. 38 (7): 595–598. Bibcode:2010Geo...
Progradation
Geological petrification process
In geology, silicification is a process in which silica-rich fluids seep into the voids of Earth materials, e.g., rocks, wood, bones, shells, and replace
Silicification
Species of cichlid fish
macrophytes (aquatic plants) also are important. Other recorded food items are detritus and aquatic insect larvae, including those of mosquitoes, making it a possible
Nile_tilapia
Natural flowing freshwater stream
the algae that collects on rocks and plants. "Collectors" consume the detritus of dead organisms. Lastly, predators feed on living things to survive.
River
Species of fish
aquatic plants and submerged terrestrial vegetation, but may also eat detritus, insects and other invertebrates. They eat up to three times their own
Grass_carp
Classification of soil or sediment
environmental pollution, often exacerbated by poor farming practices. Silt is detritus (fragments of weathered and eroded rock) with properties intermediate between
Silt
Geological formation in the European Alps
The Austroalpine nappes are a geological nappe stack system in the European Alps. They are structurally on top of the Penninic (meaning they were thrust
Austroalpine_nappes
Species of crustacean
the day, and coming out at night to feed. P. monodon typically feed on detritus, polychaete worms, mollusks, and small crustaceans. They feed on algae
Penaeus_monodon
Hierarchical outline list of articles related to oceanography
scientific study of the ocean, including its physics, chemistry, biology, and geology. It is an Earth science, which covers a wide range of topics, including
Outline_of_oceanography
Part of the East European Craton
sedimentation in a coastal-marine environment in which island arcs reused detritus from Archaean sources. The 1.80–1.74 Ga-old Korosten pluton in northern
Sarmatian_Craton
Landlocked body of water with underground connection to the sea
extremely common worldwide especially along neotropical coastlines where the geology and aquifer systems are relatively young, and there is minimal soil development
Anchialine_system
Infraorder of crustaceans
variety of food, including a significant proportion of algae, as well as detritus and other invertebrates. True crabs are widely consumed by humans as food
Brachyura
Island arc between Kyushu and Taiwan
pre-Neogene basement rocks and detritus garnet composition in the Okinawa-jima and neighbor islands". The Journal of the Geological Society of Japan. 119 (10):
Ryukyu_Arc
Coastal wetlands where sediments have been deposited by tides or rivers
may be viewed geologically as exposed layers of bay mud, resulting from deposition of estuarine silts, clays and aquatic animal detritus. Most of the sediment
Mudflat
Community of living organisms together with the nonliving components of their environment
are part of a detritus-based trophic system (a bird that feeds both on herbivorous grasshoppers and earthworms, which consume detritus). Real systems
Ecosystem
Species of fish
they are bottom feeders. As bottom feeders, the longnose suckers consume detritus and algae while stirring up the sediment. The bottom feeding behavior helps
Longnose_sucker
Geologic formation in New Mexico, USA
body of the Puye Formation consists of fanglomerates in which most of the detritus is volcanic rock of dacitic composition. There are also dacitic tephra
Puye_Formation
Extinct genus of jawless vertebrates
modern lampreys. It was more likely to have been a filter-feeder or a detritus-feeder, possibly in the manner of larval lampreys. The fish had a cartilaginous
Jamoytius
Geological formation in Western Australia
The Tumblagooda Sandstone is a geological formation deposited during the Silurian or Ordovician periods, between four and five hundred million years ago
Tumblagooda_Sandstone
Ore deposits of rare earth metals
longshore drift. Rocks are occasionally eroded directly by wave action shed detritus, which is caught up in longshore drift and washed up onto beaches where
Heavy mineral sands ore deposits
Heavy_mineral_sands_ore_deposits
Class of many-legged arthropods
200 species are known worldwide. Symphyla are primarily herbivores and detritus feeders living deep in the soil, under stones, in decaying wood, and in
Symphyla
Freshwater rift lake in Russia
conspicuous and common amphipods are essentially carnivores (will also take detritus), and can reach a body length up to 7 cm (2.8 in). Another common species
Lake_Baikal
Phylum of unsegmented marine worms
detritus as larvae. The shape of the teeth reflect these different lifestyles, and seem to be adapted mainly towards grasping prey or raking detritus
Priapulida
Geographic and historic area in north-east Italy
delta of the Po, and it is constantly expanding eastward because of the detritus sediment phenomenon. The Po and the Adige are the first and the third biggest
Polesine
Lake in East-central Africa
important role in returning detritus and plankton back into solution. With some 80 percent of Haplochromis species feeding off detritus, and equally capable
Lake_Victoria
Cambrian strata
seashelf at depths of perhaps 50–100 m. The bottom was rich in organic detritus, forming a soft muddy zone with floc in its surface layer. Other Orsten-type
Orsten
Historic gold-mining site in León, Spain
Médulas: Gold in our part of the world...is obtained in three ways: in the detritus of rivers, ... Another method is by sinking shafts; or it is sought for
Las_Médulas
Volcano in La Palma, Spain
2 kilometres (1.24 mi) thick, contain mega-blocks mixed up with finer detritus. The debris flows are now considered to be a normal process where a volcano
Cumbre_Vieja
Geological formation in Ross Dependency, Antarctica
The Hanson Formation (also known as the Shafer Peak Formation) is a geologic formation on Mount Kirkpatrick and north Victoria Land, Ross Dependency, Antarctica
Hanson_Formation
Animals of the phylum Porifera
production of sponge detritus, as shown in the diagram. Several sponge species are able to convert coral-derived DOM into sponge detritus, and transfer organic
Sponge
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