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An Introduction to the Study of Petrology
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Artikel-Nr:
9780259678816
Veröffentl:
2017
Seiten:
0
Autor:
Frederick Henry Hatch
eBook Typ:
PDF
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. Petrology is that department of geological science which has for its object the investigation of the characters and relations of rocks, that is to say, of the various materials of which the earth's crust is built up. A. Rock may be defined as a mineral aggregate, possessing a more or less persistent geological charac ter. In studying rocks, therefore, we have three points of departure: (1) their geological relations, or mode of occurrence (2) their constituent minerals; and (3) the mode of aggregation of the constituent minerals, or rock-structure.
Petrology is that department of geological science which has for its object the investigation of the characters and relations of rocks, that is to say, of the various materials of which the earth's crust is built up. A. Rock may be defined as a mineral aggregate, possessing a more or less persistent geological charac ter. In studying rocks, therefore, we have three points of departure: (1) their geological relations, or mode of occurrence (2) their constituent minerals; and (3) the mode of aggregation of the constituent minerals, or rock-structure.