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Monzonite is a coarse-grained (phaneritic) igneous rock. Such rocks are classified by their relative percentages of quartz, plagioclase, alkali feldspar, and feldspathoid (the QAPF classification). Monzonite is defined as rock having less than 5% quartz in its QAPF fraction and in which alkali feldspar makes up between 35% and 65% of the total ...
Quartz monzonite is an intrusive, felsic, igneous rock that has an approximately equal proportion of orthoclase and plagioclase feldspars. It is typically a light colored phaneritic (coarse-grained) to porphyritic granitic rock. The plagioclase is typically intermediate to sodic in composition, andesine to oligoclase.
Easiest route. Cable route. Half Dome is a quartz monzonite batholith at the eastern end of Yosemite Valley in Yosemite National Park, California. It is a well-known rock formation in the park, named for its distinct shape. One side is a sheer face while the other three sides are smooth and round, making it appear like a dome cut in half.
Milton Monzonite is found in the southern coast areas of New South Wales near Milton. The soils derived from monzonite produce relatively fertile soils, and contribute to agriculture and the sub tropical rainforest at Yatteyattah, north of Milton. Surrounding and below the monzonite is the Conjola Formation, which are sedimentary rocks from the ...
Stone Mountain is a quartz monzonite dome monadnock and the site of Stone Mountain Park, 15 miles (24 km) east of Atlanta, Georgia. Outside the park is the city of Stone Mountain, Georgia. The park is the most visited tourist site in the state of Georgia. The park is owned by the state of Georgia. At its summit, the elevation is 1,686 feet (514 ...
Description. The unit is a pink fine- to medium-grained rock with microcline megacrysts in some locations. It is subtly foliated in some locations, particularly to the south. The lithology was originally assessed as granitic with some quartz monzonite. The modal composition is 40 to 50 percent microcline - microperthite, 18 to 21 percent ...
Half Dome, a quartz monzonite monolith in Yosemite National Park and part of the Sierra Nevada Batholith. A batholith (from Ancient Greek bathos 'depth' and lithos 'rock') is a large mass of intrusive igneous rock (also called plutonic rock), larger than 100 km 2 (40 sq mi) in area, [1] that forms from cooled magma deep in the Earth's crust.
The Guilford Quartz Monzonite is a Silurian or Ordovician quartz monzonite pluton in Howard County, Maryland. It is described as a biotite - muscovite - quartz monzonite which occurs as discontinuous lenticular bodies [2] which intrude mainly through the Wissahickon Formation (gneiss). The extent of this intrusion was originally mapped in 1940 ...