The metal that is relatively abundant in meteorites but is generally rare on the EarthEarth has been found in specific layers of clay throughout the world,and its study is helping to evaluate the effect of meteor impacts on the EarthEarth''s climate and its inhabitants in recent geological time (e.g.,dinosaurs).This metal is:

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Iridium is relatively abundant in meteorites but is rare on Earth. It has been found in specific layers of clay throughout the world, which is evidence of the impact of meteorites on Earth. The high concentration of iridium in these layers is thought to be a result of the impact of a large meteorite, which could have caused the extinction of the dinosaurs.

The Metal That Is Relatively Abundant in Meteorites but Is