Bradley, Dwight C. "Passive Margins through Earth History." Earth Science Reviews 91 (2008): 1-26. Kusky, Timothy M., and Peter J. Hudleston. "Growth and Demise of an Archean Carbonate Platform, Steep Rock Lake, Ontario Canada." Canadian Journal of Earth Sciences 36 (1999): 1-20. Kusky, Timothy M., and Jianghai Li. "Paleoproterozoic Tectonic Evolution of the North China Craton." Journal of Asian Earth Sciences 22, no. 4 (2003): 383-397.
Kusky, Timothy M., and Pamela A. Winsky. "Structural Relationships along a Greenstone/Shallow Water Shelf Contact, Belingwe Greenstone Belt, Zimbabwe." Tectonics 14, no. 2 (1995): 448-471.
pelagic, nektonic, planktonic The pelagic environment includes the open ocean, inhabited by free-floating planktonic organisms and free-swimming nektonic organisms. Sediments that are deposited in an open ocean environment are said to be pelagic and largely consist of the remains of free-floating plankton that sink to the seafloor upon death.
Plankton, the bodies of aquatic organisms that float, drift freely, or swim weakly, includes a large variety of species in the marine realm: bacteria, phy-toplankton (one-celled plantlike organisms), and zooplankton that are tiny animals such as jellyfish and invertebrates, as well as numerous nonmarine aquatic species. Planktonic species are contrasted with nek-tonic organisms, which are strong swimmers, and benthic organisms, which are bottom dwellers.
Planktonic species tend to be small and without strong skeletons, and they utilize the density of surrounding water to support their dominantly water-filled bodies. Many types sink or float to specific depths, where light and salinity characteristics meet their needs. They move vertically by changing the
Was this article helpful?
Disasters: Why No ones Really 100 Safe. This is common knowledgethat disaster is everywhere. Its in the streets, its inside your campuses, and it can even be found inside your home. The question is not whether we are safe because no one is really THAT secure anymore but whether we can do something to lessen the odds of ever becoming a victim.