Granite

The hills of Mount Upstart are of primitive form, and were judged to be composed of granite. A relatively lightweight igneous rock that makes up most of the Earth 's crust beneath the continents. See basaltplate tectonicsand tectonic plates. New Word List Word List. Save This Word! See synonyms for granite on Thesaurus. If autumn is your ideal season, spice up your repertoire of "fall" vocabulary with this quiz on some warm and vivid descriptive words for the season.

Granite is an intrusive igneous rock, which means it crystallized from molten rock, called magma, miles underground. At these depths, magma is insulated by the rocks around it and cools very slowly, growing large interlocking crystals. Granite is often said to have a "salt-and-pepper" appearance: the lighter-colored minerals are quartz, potassium feldspar, and plagioclase feldspar, and the darker-colored minerals are mostly biotite and hornblende.

There are also minor amounts of various accessory minerals such as titanite and zircon. The major minerals that are present in granite as displayed in a sample of Half Dome Granodiorite. Looking at a granitic rock's composition tells geologists much about its formation.

Different granites have unique chemical compositions that produce different mineral proportions. In fact, granitic rocks are Granite classified by their mineral proportions and given names such as granite, granodiorite, tonalite, and diorite.

A clear example Granite contrasting compositions is visible on the southeast face of El Capitan where the dark-colored hornblende-rich Diorite of North America intruded the older and lighter-colored quartz and feldspar-rich El Capitan and Taft granites. Granitic rocks of different compositions and colors are juxtaposed Granite the southeast face of El Capitan.

The darker rock in the center of the photograph is the Diorite of North America. Formation Granite is most often formed where oceanic plates dive beneath continental plates in tectonic environments called Granite zones.

Diagram of subduction beneath the ancestral Sierra Nevada about million years ago. Granite by Eric Knight. Plutons Approximately three to 10 miles below these volcanoes are the magma chambers that feed them, which build up over time as bodies called plutons. Intrusive Suites and Batholiths A group of plutons that are considered to be part of the same magmatic event and thus related are called intrusive suites. Log in Sign Up. Save Word. Definition of granite.

Keep scrolling for more. Examples of granite in a Sentence had the granite to see the project out to the end. Recent Examples on the Web Firefighters fear that winds will propel the flames toward South Lake Tahoe, which until now has been protected by a massive wall of granite. Jones, baltimoresun. First Known Use of granitein the meaning defined at sense 1.

History and Etymology for granite Italian granitofrom past participle of granire to granulate, from grano grain, from Latin granum. We also sell sinks for the kitchen or bathroom, to customize the look with your new kitchen countertop, or bathroom vanity top. We are proud to offer quality workmanship, competitive prices, and personal service; this is what sets Florida Granite apart from the competition.

We work directly with owners so we stay within Granite time frame and your budget. We also sell slab remnants for your smaller projects.

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