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Tonalite is an igneous, plutonic (intrusive) rock, of felsic composition, with phaneritic (coarse-grained) texture. Feldspar is present as plagioclase ...
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Tonalite

Rock classification
Tonalite is an igneous, plutonic rock, of felsic composition, with phaneritic texture. Feldspar is present as plagioclase with alkali feldspar making up less than 10% of the total feldspar content. Quartz is present as more than 20% of the total... Wikipedia
Tonalite–trondhjemite–granodiorite (TTG) rocks are intrusive rocks with typical granitic composition (quartz and feldspar) but containing only a small ...
Tonalite is an intermediate igneous rock with essential quartz (>20%) and plagioclase feldspar (oligoclase or andesine), mafic minerals (biotite, pyroxene, ...
Nov 17, 2023 · Tonalite is a type of intrusive igneous rock that belongs to the granodiorite suite of rocks. It is characterized by its composition, ...
Feb 3, 2024 · A granitoid (a coarse grained igneous rock with <90% mafics; felsic minerals are composed mostly of quartz (20-60%) and 40-80% feldspars ...
Tonalite (named by pass Tonale, Adamello massif in Tirol) is a felsic igneous plutonic rock with phaneritic texture and special variety of granodiorite in turn ...
Tonalite is a type of plutonic igneous rock containing quartz (20 – 60% of the felsic minerals) and abundant plagioclase. K-feldspar is rare or absent in a ...
a granular igneous rock consisting of quartz, andesine, and small amounts of orthoclase. 2. : quartz-diorite. Word History. Etymology.
Tonalites compose about 5-10 % of crust generated in Proterozoic and Phanerozoic time at convergent oceanic-continental margins. They occur here as minor to ...
Sometimes alternatively referred to as quartz diorite, tonalite is typically comprised of plagioclase feldpar, alkali feldspar, and more than 20 percent quartz.