'Calcareous ooze' presentation slideshows

716 views • 53 slides

Marine Science

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Warm Up 2/10/09

Warm Up 2/10/09. Which regions are thought to be the most level places on Earth? a. mid-ocean ridges c. continental slopes b. deep-ocean trenches d. abyssal plains Deep, steep-sided valleys that originate on the continental slope and may extend to the ocean basin floor are called ____.

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Sediments! ?

Sediments! ?. January 19, 2009. Wentworth Scale of Grain Size. Boulder Cobble Pebble Granule Sand Silt Clay. Benthic Sediments by the Numbers. Cover 75% of seafloor Oozes = >30% biogenous material Siliceous (14% of ocean surface area) Calcareous (48% of ocean surface area)

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Lecture 6

Lecture 6. Factors controlling the distribution of foraminifera. Ecology. Numerous foraminifera inhabit the benthic environment. Some move freely over the sea-bed or in the first few millimeters of sediment.

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Foraminiferans

Foraminiferans. Allana Jones 3 rd Period. Small organisms with shells Shells are often porous or open (like tubes or hollow spheres) Very small marine creatures (can only reach around 20 cm)

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