detritus


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detritus

1. a loose mass of stones, silt, etc., worn away from rocks
2. the organic debris formed from the decay of organisms

Detritus

 

(1) In biology, dead organic or partially mineralized matter suspended in water in the form of particles measuring from several microns to several centimeters. Detritus forms from moribund plants and animals or their excretions, and frequently the organic matter is adsorbed on the surface of mineral suspensions. Microorganisms are al-ways present in detritus, which serves as the principal food for the water animals known as detritophages.

(2) In geology, detritus is organogenetic fragmentary material found in sediments or sedimentary rocks and composed of shell fragments; the skeletal fragments of sponges, bryozoans, corals, or other invertebrates; and the bones of vertebrates (bone detritus) and fragments of plant tissue (plant detritus).

detritus

[də′trīd·əs]
(ecology)
Dead plants and corpses or cast-off parts of various organisms.
(geology)
Any loose material removed directly from rocks and minerals by mechanical means, such as disintegration or abrasion.

detritus

Loose material which results from the disintegration of rock.
References in periodicals archive ?
bulk density as well as an increase in specific surface area, base exchange capacity, and the content of clay and nonsiliceous substances have taken place in the A-AC sequence already during two-three decades simultaneously with its formation on pure quarry detritus. Initially formed Calcaric Regosols are close to Rendzic Leptosols and can develop into a Rendzic formations with further progress of the mollic properties in the epipedon.
Si rien n'est fait, si des actions concretes, vigoureuses, radicales ne sont pas mises en chantier dans les plus brefs delais, le decor des ordures, de la salete, des detritus qui encombrent Casablanca va s'accentuer et il n'est pas exclu de voir apparaitre des maladies liees a ce manque d'hygiene, a toute ces saletes, et les premiers qui en patiront seront les enfants.
Desert suckers and hellgrammites had relatively narrow diets (B = 0.36 and 0.42, respectively), predominantly composed of amorphous detritus. A two-axes configuration for the nonmetric multidimensional scaling yielded a stress value of 0.12, suggesting accurate presentation of Bray-Curtis dietary relationships in bivariate nonmetric multidimensional scaling ordination space (Fig.
Sea Detritus. Any components of sea flora and fauna can be present in the air of seaside cities and settlements, especially if located close to the fish and seafood processing industry (Figures 5(a) and 5(b)).
Detritus - the natural grit, sand and soil found on streets and pavements - and staining - caused by things such as chewing gum and oil from vehicles - make streets look dirty.
In the middle of the AT detritus gyttja with a high content of organic matter was formed in the lake, and already at the beginning of the Subboreal (SB) (Fig.
Much more likely, in my view, we are witnessing everywhere in the universe, biology in action - living microbes as well as their detritus, and break-up molecules in the form of interstellar organic molecules.
The bags were also a bit heavy, even before being loaded with all the personal detritus people feel compelled to lug around.
It later became full of leaves and detritus and was filled in probably during the late 50s early 60s.
Density fractionations showed that OM stored in surface mineral soils partitioned towards plant detritus fraction under cooler climates on both rock types.
En esta ocasion se citan por primera vez para Mexico dos especies de escarabajos coprofagos (Scarabaeidae: Scarabaeinae) encontradas en detritus de nidos de Neotoma albigula Hartley: Onthophagus browni Howden y Cartwright y Copris macclevei Warner, especies ya senaladas de Estados Unidos de America.
Morgan Thorson has a mix-master mind, from which postmodern movement and the detritus of everyday life spin out as hilarious vignettes.