Classification Diagram for Igneous Rocks – Explanation and Figures.
English: QAPF diagram. Deutsch: Streckeisendiagramm.
classification for plutonic rocks (German). svg: classification is used for plutonic rocks. The QAPF and related diagrams are intended for classification of rocks in the field, or preliminary classification with modal proportions as seen.
A QAPF diagram is a double triangle diagram which is used to classify igneous rocks based on mineralogic composition. The acronym, QAPF, stands for “Quartz, Alkali feldspar, Plagioclase, Feldspathoid (Foid)”.
QAPF diagrams are not used to classify pyroclastic rocks or volcanic. Within the QAPFM classification scheme proposed by the IUGS, rocks with less than 90 vol-% mafic minerals are classified by their content (in volume-%) of.May 15, · QAPF diagram for classification of plutonic rocks Streckeisen Diagram A QAPF diagram is a double ternary diagram which is used to classify igneous rocks based on mineralogic composition.
The acronym, QAPF, stands for ” Quartz, Alkali feldspar, Plagioclase, Feldspathoid (Foid)”. These are the mineral groups used for classification in QAPF diagram.
QAPF diagram Wikipedia: Subclass of Pages in category “QAPF diagrams” This category contains only the following page. Q.
QAPF diagram; Media in category “QAPF diagrams” The following 28 files are in this category, out of 28 total. Clasificacion schematron.org 2, × 2,; 72 KB.
A QAPF diagram is a double triangle diagram which is used to classify igneous rocks based on mineralogic composition. The acronym, QAPF, stands for “Quartz, Alkali feldspar, Plagioclase, Feldspathoid (Foid)”.
These are the mineral groups used for classification in QAPF diagram. QAPF diagram for plutonic rocks. The diagram was created by the Subcommission of the Systematics of Igneous Rocks in the latter part of the 20th century. There are several reasons why this is the case.
The QAPF Diagram The chapter Quartz as a Rock-Forming Mineral introduced the QAPF diagram as a means to visualize and memorize the classification of igneous rocks based on their content of the minerals quartz, alkali-feldspar, plagioclase, and foids. This chapter serves to fully assign rock types to all fields in the diagram.QAPF diagram – WikipediaFile:Qapf diagram plutonic svg – Wikipedia
