The New Encyclopaedia Britannica: A - K.Encyclopaedia Britannica, 1997 |
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Page 944
... rocks has been confirmed by a similar study of the average composition of metamorphic rocks in the former Soviet Union , which has given closely comparable results . Ore deposits . An ore deposit , in its simplest terms , is a portion ...
... rocks has been confirmed by a similar study of the average composition of metamorphic rocks in the former Soviet Union , which has given closely comparable results . Ore deposits . An ore deposit , in its simplest terms , is a portion ...
Page 950
... rocks . sedimentary rocks metamorphic rocks diagenesis ; anatexis magma biogenic deposits sediments transportation weathering and biosphere atmosphere remelting Crystallization Igneous rocks primary material From B. Mason , Principles ...
... rocks . sedimentary rocks metamorphic rocks diagenesis ; anatexis magma biogenic deposits sediments transportation weathering and biosphere atmosphere remelting Crystallization Igneous rocks primary material From B. Mason , Principles ...
Page 1018
... rocks , and it is believed that as these molten basic rocks intrude into the more acidic rocks , the rare earths are partially extracted into the more acidic rocks . Also , as this extraction takes place , the rare - earth elements of ...
... rocks , and it is believed that as these molten basic rocks intrude into the more acidic rocks , the rare earths are partially extracted into the more acidic rocks . Also , as this extraction takes place , the rare - earth elements of ...
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