Gneiss (/naɪs/nice) is a common and widely distributed type of metamorphic rock. It is formed by high-temperature and high-pressure metamorphic processes acting on formations composed of igneous or sedimentary rocks. Gneiss forms at higher temperatures and pressures than schist. Gneiss nearly always shows a banded texture characterized by alternating darker and lighter colored bands and without a distinct cleavage.
Gneisses are common in the ancient crust of continental shields. Some of the oldest rocks on Earth are gneisses, such as the Acasta Gneiss.
Gneiss (/naɪs/ nice) is a common and widely distributed type of metamorphic rock. It is formed by high-temperature and high-pressure metamorphic processes...
The Acasta Gneiss Complex, also called the Acasta Gneiss, is a body of felsic to ultramafic Archean basement rocks, gneisses, that form the northwestern...
Gneiss Point (77°24′S 163°45′E / 77.400°S 163.750°E / -77.400; 163.750) is a rocky point 2 nautical miles (4 km) north of Marble Point, on the coast...
Peninsular Gneiss or Peninsular Gniessic Complex are the gneissic complex of the metamorphics found all over the Indian Peninsula, on top of which, the...
Knot Gneiss is a fantasy novel by British-American writer Piers Anthony, the 34th book of the Xanth series. This is about Jumper's friend Wenda Woodwife...
The Lewisian complex or Lewisian gneiss is a suite of Precambrian metamorphic rocks that outcrop in the northwestern part of Scotland, forming part of...
The Gneiss and Granite Plateau (German: Granit- und Gneisplateau, also called the Granite and Gneiss Highland (Granit- und Gneishochland), is one of the...
Earth was dated to 4.031 ±0.003 billion years, and is part of the Acasta Gneiss of the Slave craton in northwestern Canada. Researchers at McGill University...
bedrock in the Bronx is Fordham gneiss, while that of Manhattan is schist has led to the expression: "The Bronx is gneiss (nice) but Manhattan is schist...
textures in these rocks can either be schistose or gneissic. They transition into the mica gneiss and schist units. Major minerals in both include mica...
The Gneiss Hills (60°44′S 45°39′W / 60.733°S 45.650°W / -60.733; -45.650) are two prominent hills, 270 and 260 metres (890 and 850 ft) high, at the...
capital region. It forms the largest supracrustal enclave in the Itsaq Gneiss Complex, which predominantly comprises 3850 - 3600 million year old (Ma)...
layered gneiss member, the augen gneiss member, the streaked-augen gneiss member, and the hornblende gneiss member. Additionally, the Baltimore Gneiss outcrops...
Morton gneiss, also known as rainbow gneiss, is an Archean-age gneiss found in the Minnesota River Valley of southwestern Minnesota, United States. It...
The Port Deposit Gneiss is a Paleozoic gneiss formation in Cecil County, Maryland. It is described as a "Moderately to strongly deformed intrusive complex...
The Western Gneiss Region (Norwegian: Gneisregionen) is a large geological unit in Norway chiefly made of gneiss rock that formed through metamorphism...
The Narryer Gneiss Terrane is a geological complex in Western Australia that is composed of a tectonically interleaved and polydeformed mixture of granite...
the gneiss showed the development of garnet replacing the dark biotite. The study indicated localized melting or migmatization within the gneiss. This...
consist of metamorphic rocks, known as the K2 Gneiss and part of the Karakoram Metamorphic Complex. The K2 Gneiss consists of a mixture of orthogneiss and...
2.8 billion year old (~2.8 Ga) granite-gneiss metamorphic terrain (the Southwestern Province and Western Gneiss Belt), and three granite-greenstone terrains...
localities, the Isua Greenstone Belt in Southwest Greenland, the Acasta Gneiss in the Slave Craton in Canada, and the Nuvvuagittuq Greenstone Belt in the...
The San Miguel gneiss is a Paleoproterozoic pluton in the Nacimiento Mountains of New Mexico. It has a radiometric age of 1.695 billion years, corresponding...
The Cibola gneiss is a pluton in central New Mexico. It has a radiometric age of 1653±16 Ma, corresponding to the Statherian period. The unit was first...
These two supergroups rest over the Archean Bhilwara Gneissic Complex basement, which is a gneissic (high-grade metamorphism of sedimentary or igneous rocks)...
constitute the stratigraphy of the mountain range, with the Archean Bhilwara Gneissic Complex basement being the lowest strata, followed by the overlying lower...
Range at 2,934 metres (9,626 ft). Geologically, the island consists of gneiss and argillaceous schists with occasional tuffs and other sedimentary layers...
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