The rise and fall of Rudist reefs. The Journal of Marine Research, one of the oldest journals in American marine science, publishes peer-reviewed research articles covering a broad array of topics in physical, biological and chemical oceanography.Articles that deal with processes, as well as those that report significant observations, are welcome. The nature and origin of Upper Cretaceous basin-margin rudist buildups of the Mesopotamian Basin, southern Iraq, with consideration of possible hydrocarbon stratigraphic entrapment. Biological studies involving coupling between ecological and physical The rise and fall of Rudist reefs: American Scientist, v. 90/2, p. 148-153. (Accessed 7/2/06) Paleos.com: "The Aptian Age" (info on rudists) (Accessed 7/2/06) Johnson, C., 2002, The rise and fall of Rudist reefs: American Scientist, v. 90, p. 148. External links. Analysis of organisms and reefs through geologic time permits assessment of the strength of photosymbiosis as a driving force. "An Introduction to the Paleontology of Rudist Bivalves." coexisted coral reef limestone, sponge reef limestone, algal reef limestone and reef breccias. This poses a significant threat to their coastal communities. During the Early Cretaceous, coral-algal communities occupied deeper water habitats in the reef ecosystem, and rudist communities generally populated the shallow-water, carbonate-sand substrates. Most rudist reefs are part of large carbonate platforms and show both ecologic and sedimentologic zonation; localized rudist banks are rare and are confined to perideltaic environments. JOHNSON C C . Reef ecosystems revealing the strongest assessment for photosymbiosis are those of the mid-Paleozoic (Late Ordovician to Devonian), late Paleozoic, early Mesozoic and Neogene. The Rudist Reefs and the Dinosaurs To the Editors: Three general problems complicate at tempts to determine the true time of the rudists' disappearance using data from the fossil record ('The Rise and Fall of Rudist Reefs/' March-April): Not all reefs are fossilized, not all fossilized reefs are discovered, and dating fossils involves uncertainty. Cretaceous rudist reefs are well represented in the Mediterranean region on outcrops, and several subsurface examples are major hydrocarbon reservoirs. Abstract: This talk presents new data on reef development in a basin affected by a combination of rift and salt tectonics which exhumed Early Miocene reefs onshore and sank Plio-Pleistocene reefs offshore.The coast of the Red Sea is rimmed by shallow carbonate platforms and steep-sided platform fragments which extend as far as 25 km offshore. Cretaceous rudist-reefs are well represented in the Mediterranean region on outcrops, and several subsurface examples are major hydrocarbon reservoirs. The Rise and Fall of Rudist Reefs: Reefs of the dinosaur era were dominated not by corals but by odd mollusks, which died off at the end of the Cretaceous from causes yet to be CC Johnson American Scientist 90 (2), 148-153 , 2002 Climate-change-driven sea-level rise, coral reef degradation, and changes in storm wave climate will lead to greater occurrence and impacts of wave-driven flooding. Many coral reef-lined coasts are low-lying with elevations <4 m above mean sea level. Kauffman, E.G., and C.C. Amer Sci 90:148153 CrossRef Google Scholar Johnson CC, Kauffman EG (2001) Cretaceous evolution of reef ecosystems: a regional synthesis of the Caribbean tropics. Johnson, 1988, The Morphological and Ecological Evolution of Middle and Upper Cretaceous Reef-Building Rudist Reef at the Smithsonian Ocean Portal; More about Rudists Most rudist reefs are part of large carbonate platforms and show both ecologic and sedimentologic zonation; localized rudist banks are rare and are confined to perideltaic environments. American Scientist, 2002,90(2):148-153. doi: 10.1511/2002.2.148 [11] SADOONI F N . Johnson CC (2002) The rise and fall of rudist reefs.
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