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A Treatise on Rocks, Rock-Weathering and Soils
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Artikel-Nr:
9780243754182
Veröffentl:
2017
Seiten:
0
Autor:
George P. Merrill
eBook Typ:
PDF
eBook Format:
Reflowable
Kopierschutz:
NO DRM
Sprache:
Englisch
Beschreibung:
Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. To the one, these residues are essential to the life and well being of man through furnishing the soils from whence is derived directly and indirectly the food for life's sustenance to the other they are but transitory phases in the earth's his tory, representing the materials from which, through a process of fractional separation by running waters, have been made up the thousands of feet of secondary rocks which to-day occupy so large a portion of its surface.
To the one, these residues are essential to the life and well being of man through furnishing the soils from whence is derived directly and indirectly the food for life's sustenance to the other they are but transitory phases in the earth's his tory, representing the materials from which, through a process of fractional separation by running waters, have been made up the thousands of feet of secondary rocks which to-day occupy so large a portion of its surface.