Terrigenous

Terrigenous

In oceanography, terrigenous sediments are those derived from the erosion of rocks on land; that is, that are derived from "terrestrial" environments.(Pinet, 79) Consisting of sand, mud, and silt carried to sea by rivers, their composition is usually related to their source rocks; deposition of these sediments is largely limited to the continental shelf.(Pinet, 79-83)

Sources of terrigenous rocks include volcanoes, weathering of rocks, wind-blown dust, grinding by glaciers, and sediment carried by icebergs.

75% of sediments are terrigenous- it is present everywhere.

ee also

*Pelagic sedimentsThese are transported by wind, rivers and icebergs.

References

*Pinet, Paul R. "Invitation to Oceanography" St. Paul: West Publishing Company, 1996. ISBN 0-314-06339-0


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  • Terrigenous — Ter*rig e*nous, a. [L. terrigena, terrigenus; terra the earth + genere, gignere, to bring forth.] Earthborn; produced by the earth. [1913 Webster] …   The Collaborative International Dictionary of English

  • terrigenous — [te rij′ə nəs, tərij′ə nəs] adj. [L terrigenus < terra,TERRA + gignere, to be born: see GENUS] 1. earthborn 2. designating or of sea bottom sediment derived from the erosion of land …   English World dictionary

  • terrigenous — adj. produced by the earth or the land (terrigenous deposits). Etymology: L terrigenus earth born …   Useful english dictionary

  • terrigenous sediments — plural noun Sediment derived from the erosion of land deposited either on land or in the sea • • • Main Entry: ↑terrigenous …   Useful english dictionary

  • terrigenous — adjective Etymology: Latin terrigena earthborn, from terra earth + gignere to beget more at kin Date: 1882 being or relating to oceanic sediment derived directly from the destruction of rocks on the earth s surface …   New Collegiate Dictionary

  • terrigenous — /te rij euh neuhs/, adj. 1. produced by the earth. 2. Geol. noting or pertaining to sediments on the sea bottom derived directly from the neighboring land, or to the rocks formed primarily by the consolidation of such sediments. [1675 85; < L… …   Universalium

  • terrigenous — adjective (of a marine sediment) Derived from the erosion of land based rocks …   Wiktionary

  • terrigenous — produced on land; produced by the land Causation and Formation …   Phrontistery dictionary

  • terrigenous — [tɛ rɪdʒɪnəs] adjective Geology denoting marine sediment eroded from the land. Origin C17: from L. terrigenus (from terra earth + genus born ) + ous …   English new terms dictionary

  • terrigenous — ter·rig·e·nous …   English syllables

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