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alluvial plain |
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alluvial plain [ə′lüv·ē·əl ′plān] (geology) A plain formed from the deposition of alluvium usually adjacent to a river that periodically overflows. Also known as aggraded valley plain; river plain; wash plain; waste plain. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| A study by the United Nations in the 1980s and a follow up study by the SYSMIN I project in late 1990's, conclusively shows the presence of alluvial gold in gravels at or near the bottom of ancient alluvial terraces. The diamondiferous gravels form part of elevated alluvial terraces which continuously border both banks of the river occupying the central part of the property. Under the heading "Future Developments", the poster notes "The Indian River alluvial terraces represent a previously unrecognized, undervalued resource, with significant economic values of gold. |
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