Dacite

Word DACITE
Character 6
Hyphenation N/A
Pronunciations /ˈdeɪsaɪt/

Definitions and meanings of "Dacite"

What do we mean by dacite?

A fine-grained light gray volcanic rock consisting primarily of quartz, plagioclase feldspar, and potassium feldspar, and also containing biotite, hornblende, or pyroxene. noun

A name first used by Fr. Von Hauer and Stache, in 1863, in describing the geology of Transylvania, to include the varieties of greenstone-trachyte which contain quartz. noun

An igneous, volcanic rock with a high iron content. noun

A grey volcanic rock containing plagioclase and quartz and other crystalline minerals noun

An igneous, volcanic rock with a high iron content.

Synonyms and Antonyms for Dacite

  • Synonyms for dacite
  • Dacite synonyms not found!!!
  • Antonyms for dacite
  • Dacite antonyms not found!

The word "dacite" in example sentences

Basalt magma typically generates very little ash compared to other types (andesite, dacite, and rhyolite). ❋ Unknown (2009)

For example, volcanic eruptions range from (1) effusion of lava fountains and flows with very little ash erupted, typical of basaltic magma eruptions; to (2) extremely explosive eruptions that inject large quantities of ash high into the stratosphere, typical of rhyolite and dacite magmatic eruptions. ❋ Unknown (2009)

An intrusive complex of dacite with sedimentary and metamorphic rocks of Palaeozoic age comprise the predominant rock forms. ❋ Unknown (2008)

Rocks formed from felsic magma include granite, granodiorite, dacite, and rhyolite. ❋ Unknown (2007)

Rhyolite and dacite are produced from continental lava flows that solidify quickly. ❋ Unknown (2007)

At Goldfield, Nevada, native gold is found in surface igneous flows of a dacite type, which have undergone extensive hydrothermal alterations characterized by the development of alunite (a potassium-aluminum sulphate), quartz, and pyrite. ❋ Unknown (1915)

They cover up to 100 miles of trail beneath silver wattle and broad-leaf peppermint trees, scramble across crumbly dacite rocks. ❋ Unknown (2011)

Montierth explained that Tumtum and St. Helens were both formed out of thick, gooey lava that doesn't travel far as it cools into dacite rock. ❋ Unknown (2011)

Exploration carried out by Greystar during the second quarter of 2009 identified vein and stockwork mineralization associated with strong alteration hosted in a dacite porphyry. ❋ Unknown (2010)

The 2009 drilling program identified widespread gold mineralization associated with mineralized and altered dacite porphyry and adjacent sedimentary and volcanic rocks, drill hole DDH09-014 revealed gold mineralization of 111 meters grading up to 7.28 grams/tonne. ❋ Unknown (2010)

CFD-29 intersected a zone from 94-107 metres down hole comprising a dacite dyke with associated sheared/fractured margins and polyphase hydrothermal breccia. ❋ Unknown (2010)

The types of eruptions that dacite magma produces can vary from lava flows and domes (effusive, passive eruptions) to explosive, plinian-style eruptions - but they are most famous for the explosive eruptions like ❋ Unknown (2010)

Dacite lava hand sample, with abundant amphibole and plagioclase feldspar. magma mixing or crustal assimilation (by another magma) to form the dacite. ❋ Unknown (2010)

Mineralisation is associated with a wide dacite dyke and in particular with sheared/fractured rock and polyphase breccia and strong limonite weathering after sulphide on the margins of the dyke. ❋ Unknown (2010)

That is the textbook definition, but some other typical characteristics of dacite lavas (or magmas) is the presence of certain minerals: plagioclase feldspar and hydrous minerals (containing water in their mineral structure) such as amphibole (typically hornblende) or biotite mica. ❋ Unknown (2010)

This gold occurrence, hosted by Archean rocks, was formed in a rhyolite/dacite dome complex that measures about 2km along strike and about 800m of stratigraphic section in width. ❋ Unknown (2010)

However, there are impressive effusive dacite lavas flows, such as the ❋ Unknown (2010)

It is thought that dacite lava flows or domes form when the magma is allowed to degas before erupting, allowing for a passive rather than explosive eruption. ❋ Unknown (2010)

If the dacite is hot and dry (lacking in water), you would expect to find pyroxene in the lava as well, although it is common in almost all dacites that even have hydrous minerals. ❋ Unknown (2010)

Typically, dacite erupt anywhere from 800 to 1000 degrees Celsius. ❋ Unknown (2010)

Cross Reference for Dacite

  • Dacite cross reference not found!

What does dacite mean?

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