News tagged with magnesium calcite
Sea Urchins' Digging Teeth are Designed to Stay Sharp
(PhysOrg.com) -- Sea urchins dig themselves hiding holes in the limestone of the ocean floor using teeth that don’t go blunt. Weizmann Institute scientists have now revealed their secrets, which might give engineers insights ...
May 04, 2009 |
5 / 5 (1) |
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Search results for magnesium calcite
How soft corals defy their environment
Many marine organisms, including corals, build skeletons from calcium carbonate -- in the form of calcite or aragonite. The current composition of seawater favors the formation of aragonite -- but soft corals have a specific ...
Aug 16, 2011 |
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Sediment yields climate record for past half-million years
Researchers here have used sediment from the deep ocean bottom to reconstruct a record of ancient climate that dates back more than the last half-million years.
Space & Earth / Earth Sciences
Jun 15, 2009 |
4.5 / 5 (10) |
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Bare bones of crystal growth: Biomolecules enhance metal contents in calcite
From shells to bones, the skeletons of organisms contain small amounts of impurity elements such as magnesium. Because the levels of these elements provide important clues to past environments, a considerable effort has focused ...
Space & Earth / Earth Sciences
Oct 31, 2008 |
4.6 / 5 (9) |
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Modeling Mineral Formation with X-rays
Some of the hardest and sturdiest materials aren’t made in the factory; they’re made inside the bodies of animals. Biominerals are commonly used for support and protection, forming in teeth, bones, and shells ...
Nov 30, 2006 |
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Study: Corals can switch skeletal material
U.S. marine geologists say they've determined corals can change their skeletons, using different minerals depending on the seawater's chemical composition.
Biology /
Jul 06, 2006 |
3.2 / 5 (5) |
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An Inexhaustible Source of Energy from Methane in Deep Earth
Untapped reserves of methane, the main component in natural gas, may be found deep in Earth’s crust, according to a recently released report in the Proceedings of the National Academy of Sciences of the United States of America ...
Sep 15, 2004 |
3.7 / 5 (3) |
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List of search results for magnesium calcite
