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ASTER


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Jack Hills, Australia
Click Image to Enlarge
Jack Hills, Australia
 (JPG) (878,155 bytes) ( 2,282 x 1,772 )
The oldest material on Earth which has yet been dated by man is a zircon mineral of 4.4 billion years old from a sedimentary gneiss in the Jack Hills of the Narre Gneiss Terrane of Australia. It is the most ancient fragment of the earth‘«÷s crust so far identified, formed approximately 150 million years after the planet itself. In August of 2007, scientists reported finding the world‘«÷s oldest diamond crystals, encased inside the zircon crystals. The image was acquired October 12, 2004, covers an area of 26.6 x 34.2 km, and is located near 26.2 degrees south latitude, 117.1 degrees east longitude.

Please give credit for these images to:
NASA/GSFC/METI/Japan Space Systems,
and U.S./Japan ASTER Science Team

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Added: 6/2/2009 12:45:51 PM
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