Thesis Collection
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Browsing by Subject "QAPF diagram"
Now showing items 1-3 of 3
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A chemical approximation to the modal QAPF and normative Q' (F')-ANOR classification of the igneous rocks based on their SiO2-CaO-K2O content
(Sociedad Geológica de España, 2019)Los magmas pueden dar origen a rocas plutónicas o volcánicas de la misma composición química. La composición modal de las rocas plutónicas puede ser cuantificada pero en el caso de las rocas volcánicas no suele ser posible ... -
Una clasificación normativa de las rocas plutónicas y volcánicas mediante el diagrama 2Q-(or+ab)-4an-2F
(Sociedad Geológica de España, 2018)Modal analyses provide a precise classification of the plutonic rocks, as demonstrated by the great acceptance of the QAPF diagram. However, the existence of isomorphic series in feldspars causes some indeterminations ... -
Comparative study of the classification of plutonic and volcanic rocks using the normative Q' (F')-ANOR and chemical SiO2-100 CaO/(CaO+K2O) diagrams
(Sociedad Geológica de España, 2019)To obtain a classification of igneous rocks, compatible with the QAPF classification, in the absence of modal analyses, a chemical diagram using the same discriminating elements as the Q'(F')-ANOR normative diagram has been ...
