allochthonous


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al·loch·tho·nous

 (ə-lŏk′thə-nəs)
adj.
1. Originating or formed in a place other than where found: allochthonous rocks; an allochthonous population.
2. Ecology Not indigenous: an allochthonous organism.

allochthonous

(əˈlɒkθənəs)
adj
(Geological Science) (of rocks, deposits, etc) found in a place other than where they or their constituents were formed. Compare autochthonous1
[C20: from Greek allokhthon, from allo- + khthōn (genitive khthonos) earth]
allogenic, allochthonous - Geological material that has been transported and then accumulates elsewhere is allochthonous, and sediment carried by a river is allogenic.
See also related terms for sediment.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.allochthonous - of rocks, deposits, etc.allochthonous - of rocks, deposits, etc.; found in a place other than where they and their constituents were formed
autochthonous - of rocks, deposits, etc.; found where they and their constituents were formed
Translations
References in periodicals archive ?
The matrix of the reef-core limestone is composed of wackestone to mudstone, with a high probability of a similar mix of authochthonous and allochthonous micrite (Kroger et al.
Effects of dietary 60 g kg-1 dried distiller's grains in least-cost practical diets on production and gut allochthonous bacterial composition of cage-cultured fish: composition among fish species with different natural food habits.
This complexity is further enhanced as the shear zone may also form part of a larger fault system termed the Cabot Nappe, suggested to represent northwesterly thrusting and folding of an allochthonous sheet of the Bras d'Or terrane over the Aspy terrane (Lynch 2001).
There are 2 possible mechanisms by which the allochthonous quartz has been incorporated into the clay matrix of the saprolite shown in Figs 5 and 6.
Plants are also involved in nutrient uptake and provide allochthonous organic material for detritivores.
At that point, allochthonous larval inputs are necessary to rebuild the population, but as the external sources of such larvae are lost (e.
Linking marine and terrestrial food webs: allochthonous input from the ocean supports high secondary productivity on small islands and coastal land.
The presence of nutrient rich water pockets, either as a result of upwelling, mineralization of allochthonous inputs from mangroves (especially in eastern and north-western Bahia Magdalena), or tidal mixing are some of the primary factors that determine distribution and density of phytoplankton (Nienhuis and Guerrero-Caballero 1985; Garate-Lizarraga and Siqueiros-Beltrones 1998).
California) present results of an extensive study of Asselian to lower Kungurian colonial Rugosa from shelf carbonates along the cratonic margin of Pangaea, from the Urals to Bolivia, and in those allochthonous terranes of western North America containing CAU corals.
The distribution and abundance of coyotes: The effect of allochthonous food subsidies from the sea.
These mountains are perhaps allochthonous tectonic blocks that were moved from the east along a left lateral fault (Dewey and Pindell, 1985).