Overview of Plate Tectonics
Formation of Complex Communities & Reefs
Plate tectonics is a scientific theory that describes the large-scale motions of Earth's lithosphere. The model builds on the concepts of continental drift, developed during the first few decades of the 20th century. The geoscientific community accepted the theory after the concepts of seafloor spreading were developed in the late 1950s and early 1960s.
HERE is a link to an article in Wikiedia on this topic
HERE is a link to an article in Wikiedia on this topic
To the right there are a coupe of videos describing Plate Tectonics.
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A reef, to a geologist, is what you get when macroscopic organisms which secrete skeletal matter (hard corals, for example, or oysters) grow on top of one another, forming a mass of skeletal material in relief from the sea bed.
Since the skeletons of reef-forming organisms are invariably made of calcium carbonate, reefs are by definition limestone.
Click HERE to an article on Reefs.
Another article from Wikipedia is HERE.
Since the skeletons of reef-forming organisms are invariably made of calcium carbonate, reefs are by definition limestone.
Click HERE to an article on Reefs.
Another article from Wikipedia is HERE.
Formed 480 million years ago, the Chazy Fossil Reef is the oldest known biologically diverse reef in the history of life on earth, the earliest fossil record of the phenomenon of succession, and the first time that coral appeared in a reef environment. This video is about two geologic preserves on Isle la Motte, Vermont
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