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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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.
Farlex Trivia Dictionary. © 2012 Farlex, Inc. All rights reserved.
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
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
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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.
Anadromous fish as marine nutrient vectors
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.
Lower Permian colonial rugose corals, western and northwestern Pangaea; taxonomy and distribution
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.
Some aspects of the sociolinguistic situation in Latvia: causes and effects/Neki aspekti sociolingvisticke situacije u Latviji: uzroci i ucinci
The distribution and abundance of coyotes: The effect of allochthonous food subsidies from the sea.
Pros and cons, of vulture restaurants
Neither Bowen nor Hess was in agreement with European geologists, who had already recognized the allochthonous nature of ophiolites.
Igneous Rock Associations 9. Ophiolites 1: from the beginning to modern times
Nitrogen sedimentation in a lake affected by massive nitrogen inputs: autochthonous versus allochthonous effects.
Bibliografia Botanica Iberica, 2006 Phycophyta
(1999) described grains with amorphous carbon coatings in the allochthonous breccia of the Lappajarvi impact crater.
Impact-induced and diagenetic changes in minerals in the sandy ejecta of the Kardla crater, NW Estonia/Meteoriidiplahvatuse mojul ja diageneesi valtel tekkinud mineraalterade muutused Kardla kraatrit umbritsevas liivakas valjapaiskelasundis
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.
THREATS TO THE BALTIC SEA, 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.
Continental drift
Allochthonous aquatic insects increase predation and decrease herbivory in river shore food webs.
Seasonal habitat shift in an intertidal wolf spider: proximal cues associated with migration and substrate preference
A Holocene record of allochthonous, aeolian mineral grains in an Australian alpine lake; implications for the history of climate change in southeastern Australia.
Assessing the impact of early colonial Australia on the physical environment: a comment on Gale and Haworth (2002)
yielded an allochthonous, shallow-marine assemblage of plant fragments
Systematics, ontogeny, and phylogenetic implications of exceptional anatomically preserved cycadophyte leaves from the Middle Jurassic of Bearreraig Bay, Skye, northwest Scotland

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