from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A coarse-grained igneous rock consisting primarily of quartz, plagioclase feldspar, and potassium feldspar, and also containing biotite, hornblende, or pyroxene.
from The Century Dictionary.
- noun A phanerocrystalline rock intermediate in composition between granite and quartz-diorite: nearly the same as quartz-monzonite.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun an
intrusive igneousrock similar to granite, but containing more plagioclasethan potassium feldspar.
from Wiktionary, Creative Commons Attribution/Share-Alike License
We've known for decades that homes on or near the Reading Prong made up of granitic gneiss, granodiorite, and quartzite had elevated levels of radon.
Typically occurring in Virginia are basalt and metabasalt of the Catoctin Formation, granite and granodiorite of the Virginia Blue Ridge Complex, and andesite, tuft, and greenstone of the Swift Run Formation.
Dacite and granodiorite contain slightly more biotite and amphibole minerals than granite and rhyolite.
Rocks formed from felsic magma include granite, granodiorite, dacite, and rhyolite.
Granite and granodiorite are common intrusive igneous rocks that are restricted to the Earth's continents.
Because granite and granodiorite form beneath the Earth's surface, their solidification is a relatively slow process.
We report U-Pb crystallization ages for zircon grains and Ar-Ar whole-rock spectra for a hydrothermally altered granodiorite (31-17) at Medicine Lake Volcano, a half-million-year-old shield volcano of basalt through rhyolite composition.
A 40Ar-39Ar step-heating experiment on the same granodiorite yielded an irregular plateau with an age of 119±9 ka and isochron and inverse isochron ages of 148±50 and 146±35 ka.
The granodiorite was obtained at ~2. 5 km depth in a geothermal drillhole sited within Medicine Lake caldera (sample supplied by CalEnergy Corp.).
For Venus, grab a truckload of granodiorite -- the spotted stuff -- from the Sierra-Nevadas and tint it pink ....