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gneiss
(redirected from Gneisses)

    Also found in: Encyclopedia, Wikipedia, Hutchinson 0.02 sec.
gneiss  (ns)
n.
A banded or foliated metamorphic rock, usually of the same composition as granite.
[German Gneis, probably alteration of Middle High German ganeist, spark (from its appearance), from Old High German gneista.]
gneissic (nsk), gneissoid (nsoid), gneissose (nss) adj.
gneiss [naɪs]
n
(Earth Sciences / Geological Science) any coarse-grained metamorphic rock that is banded and foliated: represents the last stage in the metamorphism of rocks before melting
[from German Gneis, probably from Middle High German ganeist spark; related to Old Norse gneista to give off sparks]
gneissic , gneissoid, gneissose adj
gneiss  (ns)
A highly foliated, coarse-grained metamorphic rock consisting of light-colored layers, usually of quartz and feldspar, alternating with dark-colored layers of other minerals, usually hornblende and biotite. Individual grains are often visible between layers. Gneiss forms as the result of the regional metamorphism of igneous, sedimentary, or other metamorphic rocks.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.gneiss - a laminated metamorphic rock similar to granite
metamorphic rock - rock altered by pressure and heat
Translations
gneiss [naɪs] N → gneis m
gneiss
n → Gneis m


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The densely populated Piedmont province, with its 500-million-year-old rock, and the Highlands province, with billion-year-old granites and gneisses, generate the most radon, especially where glacial deposits do not cover the bedrock, the team reports.
Eastern radon ranked by region by Pennisi, Elizabeth / Science News
The gemstones are closely related to the contact between mafic schists and felsic gneisses and pegmatites.
Douglas Lake Minerals Completes Negotiations to Acquire Tanzanian ... by Business Wire
Okanagan BC Brown & Dark Brown Proterozoic to Cenozoic Chernozems; Eutric granite gneisses.
Geology and wine 9: regional trace element fingerprinting of Canadian ... by Fryer, Brian J. / Geoscience Canada
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