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Geology, Fossils & Gems of Western Australia |
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Did you know there are fossils and gems in Western Australia? See what similarities and changes have happened to this land and its wildlife and flora. How is the land formed? What creatures roamed this land? |
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| AJ is a fossil ammonite and he is going to join us on these pages and help us discover the hidden and not so hidden treasures of Western Australia's rocks, fossils and gems. |
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What these terms mean |
http://www.zoomwhales.com/subjects/dinosaurs/glossary/indexe.shtml Go here for a glossary |
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Period |
The period is
the basic unit of geological time in which a single type of rock system
is formed, lasting tens of millions of years.
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Era |
Two or more
geological periods comprise an Era, which is hundreds of millions of
years in duration.
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Eon |
Two or more
geological eras form an eon, which is the largest division of geological
time, lasting hundreds of millions of years.
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and graphical Copyright © Wildlife Education Services 2003. |