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 [delta][sup.13]C and [delta][sup.34]S distribution and range among the freshwater fishes suggest that both autochthonous and allochthonous (terrestrial C3 photosynthetic production and MDN) nutrient sources are important to the tidal freshwater fish community.
Focusing almost exclusively on the distinctive faunas of the Cordilleran-Arctic-Uralian (CAU) Realm, Fedorowski (geology, Adam Mickiewicz U., Poznan, Poland), Bamber (Geological Survey of Canada), and Stevens (geology, San Jose U., 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.
There are the following minority types in Latvia: unique autochthonous minority--Livonians; traditional allochthonous non-contact minorities--Roma (Gypsies), Jews, Germans, Poles; traditional allochthonous contact minorities Lithuanians, Estonians, Belorussians, Russians; immigrant minorities--Russians, Belorussians, Ukrainians, Armenians, etc.
The distribution and abundance of coyotes: The effect of allochthonous food subsidies from the sea.
Neither Bowen nor Hess was in agreement with European geologists, who had already recognized the allochthonous nature of ophiolites.
Nitrogen sedimentation in a lake affected by massive nitrogen inputs: autochthonous versus allochthonous effects.
Eutrophication, over-fishing, climate change, toxic organic pollutants and the introduction of allochthonous species are the principal threats to the waters of the Baltic, Kattegat and Skagerrat.
European governments now speak regularly of "autochthonous" and "allochthonous" residents--those rooted in the local soil and those springing from foreign soils.
Allochthonous aquatic insects increase predation and decrease herbivory in river shore food webs.
A Holocene record of allochthonous, aeolian mineral grains in an Australian alpine lake; implications for the history of climate change in southeastern Australia.