Paleo-Oceanography Terms and Definitions, Quizzes of Oceanography

Download Paleo-Oceanography Terms and Definitions and more Quizzes Oceanography in PDF only on Docsity! TERM 1 Paleo-oceanography DEFINITION 1 study of how ocean, atmosphere, land, interactions produce changes in ocean chemistry, circulation, biology, climate TERM 2 Lithogenous DEFINITION 2 small particles eroded, carried to ocean by streams/river deposits,wind, erosion, gravity, glaciersgreatest quantity around cont'l marginsneritic vs. pelagic TERM 3 Biogenous DEFINITION 3 remains of hard parts (shells, bones, teeth) of once-living organismsmainly algae & protozoansmacroscopic vs. microscopicdepends on: productivity, destruction, dilution TERM 4 Hydrogenous DEFINITION 4 dissolved material in watersmall portion of marine sedimentsdistributed in diverse environmentsmanganese nodules & evaporites TERM 5 Cosmogenous DEFINITION 5 macroscopic meteor debrisoverall insignificant portion of marine sediments TERM 6 Pelagic & Neritic Sediment Distribution DEFINITION 6 Neritic sediments 1/4 of sea floorPelagic sediments 3/4 of sea floorControlled by:proximity of sources of lithogenous sedimentsproductivity of microscopic marine organismsdepth of watersea floor features TERM 7 Cont'l Drift Evidence DEFINITION 7 fit of continentsmatching rocks/mtnsglacial patternsdistribution of organismspatterns of earthquakes TERM 8 Seafloor Spreading DEFINITION 8 circular movement of rock material in the mantleconvection in the asthenosphere TERM 9 Bathymetry Techniques DEFINITION 9 soundingsprecision depth recorder (PDR)echo soundingssonarsatellitesseabeam TERM 10 Passive Cont'l Margin DEFINITION 10 lack major tectonic activity (i.e. large earthquakes, eruptive volcanoes, mtn building)