Ternary diagram showing the relative abundance of quartz, feldspar, and lithic grains and views of what selected compositions would look like.
In general, the most contentious item counted is chert, which is usually counted as a lithic fragment, but is sometimes better suited in the Q pole. When this happens, the pole is renamed 'Qt' instead of Q.
QFL triangle showing schematic plots of common sand compositions
The importance of a QFL triangle is mainly demonstrated in tectonic exercises. As first demonstrated in the 1979 paper by Bill Dickinson and Chris Suczek,[1] the composition and provenance of a sandstone is directly related to its tectonic environment of formation.
Craton sands are clustered near the Q pole. As sandstones, these are known as quartz arenites.
Transitional continental sands are along the QF line. As sandstones, these are known as arkoses.
Basement uplift sands are near the F pole. This includes "thick-skinned tectonics." As sandstones, these are known as arkoses.
Recycled orogen sands plot near the Q pole, but with significant F and L components. This includes "thin-skinned tectonics" common in subduction back-arc thrusting. As sandstones, these are known as lithic sandstones.
Arc sands plot along the F and L line, with sometimes significant Q components. Clustering near the F pole indicates a dissected arc, and clustering near the L pole indicates an undissected, or new arc. As sandstones, these are known as arkoses and/or lithic sandstones.
^Dickinson, William R.; Suczek, Christopher A. (December 1, 1979). "Plate Tectonics and Sandstone Compositions". AAPG Bulletin. 63 (12): 2164–2182. doi:10.1306/2F9188FB-16CE-11D7-8645000102C1865D.
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diagram, triangle, type, ternary, diagram, that, shows, compositional, data, from, sandstones, modern, sands, point, counted, using, gazzi, dickinson, method, abbreviations, used, follows, quartz, feldspar, lithic, fragmentsternary, diagram, showing, relative,. A QFL diagram or QFL triangle is a type of ternary diagram that shows compositional data from sandstones and modern sands point counted using the Gazzi Dickinson method The abbreviations used are as follows Q quartz F feldspar L lithic fragmentsTernary diagram showing the relative abundance of quartz feldspar and lithic grains and views of what selected compositions would look like In general the most contentious item counted is chert which is usually counted as a lithic fragment but is sometimes better suited in the Q pole When this happens the pole is renamed Qt instead of Q QFL triangle showing schematic plots of common sand compositions The importance of a QFL triangle is mainly demonstrated in tectonic exercises As first demonstrated in the 1979 paper by Bill Dickinson and Chris Suczek 1 the composition and provenance of a sandstone is directly related to its tectonic environment of formation Craton sands are clustered near the Q pole As sandstones these are known as quartz arenites Transitional continental sands are along the QF line As sandstones these are known as arkoses Basement uplift sands are near the F pole This includes thick skinned tectonics As sandstones these are known as arkoses Recycled orogen sands plot near the Q pole but with significant F and L components This includes thin skinned tectonics common in subduction back arc thrusting As sandstones these are known as lithic sandstones Arc sands plot along the F and L line with sometimes significant Q components Clustering near the F pole indicates a dissected arc and clustering near the L pole indicates an undissected or new arc As sandstones these are known as arkoses and or lithic sandstones See also editFolk classificationReferences edit Dickinson William R Suczek Christopher A December 1 1979 Plate Tectonics and Sandstone Compositions AAPG Bulletin 63 12 2164 2182 doi 10 1306 2F9188FB 16CE 11D7 8645000102C1865D nbsp This article related to petrology is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title QFL diagram amp oldid 1188458441, wikipedia, wiki, book, books, library,
