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

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2023年11月17日 · Tonalite is a type of intrusive igneous rock that belongs to the granodiorite suite of rocks. It is characterized by its composition, which is intermediate between granite and …

Tonalite–trondhjemite–granodiorite (TTG) rocks are intrusive rocks with typical granitic composition (quartz and feldspar) but containing only a small portion of potassium feldspar. …

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 tonalite and, when present, it …

2023年9月7日 · Tonalite is a coarse-grained, light-colored intermediate to mafic plutonic rock with mainly plagioclase, quartz, and minor mafic minerals.

TONALITE - Intrusive igneous, plutonic. Sometimes mistakenly used as synonymous with quartz diorite. The rock contains essential quartz, and plagioclase feldspar, usually andesine, with …

A granitoid (a coarse grained igneous rock with <90% mafics; felsic minerals are composed mostly of quartz (20-60%) and 40-80% feldspars (Kspar (alkali-feldspar) and plagioclase), …

Tonalite is an intermediate igneous rock with essential quartz (>20%) and plagioclase feldspar (oligoclase or andesine), mafic minerals (biotite, pyroxene, hornblende,) and minor alkali …

2015年11月13日 · Tonalite The intrusive igneous rock is often a chief component of extensive batholiths, such as the Shasta Valley batholith of California. Sometimes alternatively referred …