USGS: Science for
a Changing World


For Younger Readers

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Photograph of scientist studying 
fossils with a microscope Photograph of scientist in the Ellsworth 
Mountains of Antarctica
Many fossils are too small to be studied without a microscope. The rocks that seem to be coming out of the man's head, part of the Minaret Formation in the Ellsworth Mountains, Antarctica, are a 7.5-m-thick bed of limestone that stands vertically. The limestone is made up of the shells of Cambrian fossils.

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Last updated 14 August 1997 (krw)
Maintained by John Watson