multiple image align right direction vertical image1 Gneiss.jpg width1 231 caption1 Gneiss rock image2 Augen gneiss 2.jpg width2 173 caption2 Augen gneiss from Rio de Janeiro , Brazil image3 Granitic gneiss.jpg width3 173 caption3 Granitic gneiss from Enfield, New York Image Study of Gneiss Rock.jpg thumb upright 200px Study of Gneiss Rock, Glenfinlas , the Trossachs , Scotland . A pen and ink study by John Ruskin , 1853, is now in the Ashmolean Museum , Oxford . Gneiss IPAc en icon n a s is a common and widely distributed type of Rock geology rock formed by high grade regional metamorphic rock ... or Sedimentary rock sedimentary rocks. Etymology The etymology of the word gneiss is disputed. Some .... Depending on their composition, they may also be called garnet gneiss, biotite gneiss, albite gneiss, etc. Gneiss displays compositional banding where the minerals are arranged into bands of more mafic ... thrown there by the Neugrund impact Orthogneiss designates a gneiss derived from an igneous ... similar to gneiss. Lewisian Most of the Outer Hebrides of Scotland have a bedrock formed from Lewisian complex Lewisian gneiss . These are amongst the oldest rocks in Europe and some of the oldest ... The gneiss s delicate pink colours are exposed throughout the islands and it is sometimes referred to by geologists as The Old Boy . ref Murray 1966 p. 2 ref Augen gneiss Augen gneiss, from the German Augen IPA de a n , meaning eye , is a coarse grained gneiss, interpreted as resulting from metamorphism .... Heinemann. Footnotes Reflist External links commons category inline Gneiss Cite EB1911 Gneiss Cite NIE Gneiss year 1906 Category Metamorphic rocks Category Metamorphic petrology Category Gneiss bs Gnajs bg ca Gneis cs Rula hornina da Gnejs de Gneis et Gneiss el es Gneis eo Gnejso eu Gneiss fa fr Gneiss gl Gneis ko hr Gnajs io Gneiso id Gneis is Gneis it Ortogneiss ka ... Gnais ru simple Gneiss sk Rula sr sh Gnajs fi Gneissi sv Gnejs th tr Gnays uk ... more details
The Morton Gneiss is an Archean age migmatite migmatitic gneiss found in southwestern Minnesota . It has been dated to 3.6 billion years ago, making it one of the oldest rock units on the planet. It is believed to have originally been a granite before it was metamorphosed. Its type locality is in Morton, Minnesota . It is also known as Rainbow Gneiss , and is quarried as a as a facing stone for buildings. References http www.geo.umn.edu mgs virt egg gneiss.htm Gneiss , Minnesota Geological Survey, University of Minnesota. Category Geology of Minnesota US geology stub ... more details
Gneiss Hills coor dm 60 44 S 45 39 W are two prominent hills, 270 m and 260 m, at the west side of McLeod Glacier in the south part of Signy Island , in the South Orkney Islands . So named by the Falkland Islands Dependencies Survey FIDS , following their survey of 1947, because of a band of pink gneiss outcrops near the summits. usgs gazetteer Category Geography of Antarctica subantarctic geo stub ... more details
Gneiss Lake coor dm 60 44 S 45 39 W is a small lake on the west side of Gneiss Hills in the south portion of Signy Island , South Orkney Islands . The lake is permanently ice covered and is visible only in summer when melting occurs at the perimeter. Named in 1981 by the United Kingdom Antarctic Place Names Committee UK APC in association with the hills. usgs gazetteer Category Lakes of Antarctica subantarctic geo stub ... more details
The Acasta Gneiss is a Rock geology rock outcrop of Hadean tonalite gneiss in the Slave craton in Northwest Territories , Canada . Located on an island about 300 kilometres north of Yellowknife , the Acasta River rock deposit, believed to be 4.031 to 3.58 billion years old, is the oldest known intact crustal fragment on Earth. ref http www.cbc.ca canada north story 2010 04 27 nwt acasta rock.html CBC News Ancient N.W.T. rock chunks for sale ref Found in 1989, it was named for the nearby Acasta River east of Great Bear Lake ref name Gazette cite web url http www.canada.com montrealgazette news story.html?id 0fd4386e ebb1 4f32 bcf3 5cb6768cfbef title World s oldest rocks found in Quebec publisher The Gazette date Septembre 25th, 2008 accessdate 2008 09 25 ref ref name Science cite journal url http www.sciencemag.org cgi content short 321 5897 1828 title Neodymium 142 Evidence for Hadean Mafic Crust journal Science Magazine author Jonathan O Neil coauthors Richard W. Carlson, Don Francis, Ross K. Stevenson date Septembre 26th, 2008 publisher HighWire Press issue 5897 volume 321 pages 1828 1831 doi 10.1126 science.1161925 accessdate 2008 09 26 pmid 18818357 ref . The Acasta outcrop is found in a remote area of the Tlicho people land settlement. It is the Oldest rock oldest known exposed rock in the world. Geology The rock exposed in the outcrop is derived from a 4.2 billion year old granitiod an age based on radiometric dating of zircon crystals at 4.2 Gigaannum SI prefix multipliers ... of the Acasta Gneiss Complex. ref . The Acasta Gneiss is important in establishing the early history ... tonne boulder of Acasta Gneiss for display outside the National Museum of the American Indian in Washington ... of the world s oldest rocks refined using Canada s SHRIMP. the Acasta gneiss complex, Northwest Territories ... 65 11 N 115 41 W type mountain region CA display title Category Gneiss Category Stratigraphy of the Northwest Territories da Acasta gnejskomplekset de Acasta Gneis nl Acasta Gneiss ... more details
Infobox Indian Jurisdiction skyline Lalbagh Botanical Garden, Bangalore.jpg native name Peninsular Gneiss ... ward postal code website footnotes inset map marker yes Peninsular Gneiss is a term coined to highlight ... Gneiss publisher Geological Survey of India accessdate 2009 02 27 ref ref name GSI cite book title ... 02 28 ref As general information, gneiss is a coarse grained high grade metamorphic rock formed ... Geological Map of South India The Dharwar s of South India The Archean gneiss es and schists , which ... the Peninsular Gneiss as the basement rock formation, also stated to be the remobilized basement ... to formation of the composite gneiss . ref name GSI ref name migmatic cite web url http www.springerlink.com content m056070820802153 title Structural evolution of the Peninsular Gneiss an early ... Springlink accessdate 2009 02 27 ref Geology of the Lalbagh hill monument File Pensisualar Gneiss, Plaque ... Gneiss, has dark biolite gneiss of granitic to granodioritic composition containing streaks ... into grey biotite gneiss during migmatization. The grey biotite gneiss during migmatization was first ... have traversed all these rocks. blockquote File Gneiss exposure at Geological monument.JPG thumb right 300px Gneissic exposure at the Lalbagh hillock Geological age Initial studies on the Gneiss ... Radiometric ages Study Region Belt 3.4 Ga. The oldest Peninsular Gneiss found in areas in the Hosur ... Gneiss found in the Bangalore&ndash Chickmagalur &ndash Holenarsipur region 3.0&ndash 2.9 Ga ...&ndash 3.2 Ga., and 3.0&ndash 2.9 Gya Ga ., are accreted to form the Peninsular Gneiss of the region ... Gneiss could be the oldest suture zone s in the Indian subcontinent . ref cite web url http www.britannica.com EBchecked topic 449920 Peninsular gneiss title stratigraphy of Asia in Asia The Precambrian ... Cardinal towers of Bangalore erected above the Lalbagh hill of Peninsular Gneiss See Lalbagh Lalbagh ... Gneiss, now identified as a National Geological Monument. The city has outgrown the limits set ... more details
Gneiss Point coor dm 77 24 S 163 44 E is a rocky point 2 nautical miles 3.7 km north of Marble Point , on the coast of Victoria Land . First mapped by the British Antarctic Expedition 1910 13 under Scott and so named because of gneissic granite found here. usgs gazetteer Category Geography of Antarctica EAntarctica geo stub ... more details
Unreferenced date October 2008 Infobox book name Two to the Fifth image author Piers Anthony country United States language English Language English cover artist genre Fantasy novel publisher release date 12 October 2010 media type Print Hardcover and Paperback pages isbn preceded by Jumper Cable followed by Well Tempered Clavicle Knot Gneiss will be the 34th book of the Xanth series by Piers Anthony Plot introduction This is about Jumper s friend Wenda Woodwife, who has a nymphly front but no back, being hollow from behind, who speaks with the forest dialect I wood knot dew that to yew. She has to transport a boulder made of petrified reverse wood that naturally terrifies petrifies everyone else. Category American novels Category Xanth books 34 Category 2010 novels Category Novels by Piers Anthony Category Upcoming books Fantasy novel stub ... more details
Infobox rockunit name Narryer Gneiss Terrane image Jack hills etm 1999208.jpg caption Satellite image of Jack Hills in the Narryer Gneiss Terrane type Geological complex prilithology Granite otherlithology ... subunits Dugel Gneiss, Meeberrie Gneiss, Manfred Complex & metasedimentary rocks thickness extent area age 3.3 Ga The Narryer Gneiss Terrane is a geological complex in Western Australia that is composed ... ary rocks in excess of 3.3 billion years old, with the majority of the Narryer Gneiss Terrane ... s crust geology crust samples of zircon from the Jack Hills portion of the Narryer Gneiss have ... crystal s are about 3.6 3.8 billion years old. The Narryer Gneiss Terrane is adjacent to the northernmost ... and metagranite orogen . The Narryer Gneiss Terrane also includes parts of the Yarlarweelor Gneiss which abuts to Nabberu Basin metamorphic sequences of the Bryah Padbury Basins , where it is present as discontinuous slivers of metamorphic rock s, pelite s, metaconglomerate s and gneiss es caught up within regional strike slip oblique thrust fault s. The Narryer Gneiss in this far eastern ... surface may be preserved within the thrust sheets. The Narryer Gneiss Terrane is divided into four major rock sequences Myers 1990 the Dugel Gneiss, Meeberrie Gneiss, Manfred Complex, and unassigned polydeformed leucocratic gneisses and metasediments. Dugel Gneiss The Dugel Gneiss is syenogranitic or monzogranitic in composition and this is interpreted as the protolith. The gneiss is leucocratic ..., and preserves an amphibolite facies metamorphic assemblage. The gneiss is pervasively shot through with pegmatite veins. Within the low strain zones, the Dugel Gneiss exists as a medium grained ... by later metamorphism . The Dugel Gneiss is considered to be intruded into the older Meeberrie Gneiss ... banding or mylonite zones. Meeberrie Gneiss The Meeberrie Gneiss is a generally ductilely deformed banded gneiss of monzogranitic composition, and its protolith is interpreted as a set of monzogranite ... more details
Unreferenced auto yes date December 2009 Image Augen gneiss.jpg thumb 250px A Gneiss with large eye shaped feldspars Augen from German eyes are large, lenticular eye shaped mineral grains or mineral Aggregate composite aggregate s visible in some foliation geology foliated metamorphic rocks . In cross section they have the shape of an eye. Feldspar , quartz , and garnet are common minerals which form augen. Augen form in rocks which have undergone metamorphism and Shear geology shearing . The core of the augen is a porphyroblast or porphyroclast of a hard, resilient mineral such as garnet. The augen grows by crystallisation of a mantle of new mineral around the porphyroblast. The mantle is formed contiguous with the foliation which is imparted upon the rock, and forms a blanket which tapers off from either side of the porphyroblast within the strain shadows. During shearing, the poprhyroblast may rotate, to form a characteristic augen texture of asymmetric shearing. In this case, the position of the tails is unequal across the foliation, with some augen showing clear drag folding of the mantle into the strain shadow. This derives a form of shear direction information. A metamorphic rock which is clotted with augen is often called an augen gneiss . A long wall of this augen gneiss can be felt at the Mineral and Lapidary Museum of Western North Carolina . See also Foliation Gneiss Rock microstructure Schist Shear geology Category Metamorphic petrology Petrology stub ... more details
Polished slabshowinf gold veinlets they appear white in Carolina gneiss Battle Branch mine. Lumpkin County, Georgia. 1935. Plate 12 C, U.S.Geological Survey Professional paper 213. 1948. Park, C.F. Source U.S. Geological Survey Photographic Library http libraryphoto.cr.usgs.gov index.html here PD USGov Interior USGS ... more details
Information Description granitic gneiss from Enfield, New York Source self made Date 02 July 2010 UTC Author Author Original uploader was en User hovden hovden at http en.wikipedia.org en.wikipedia br Permission cc by sa 3.0 Attribution details ... more details
Image Geology of Guernsey.png thumb right Geology of Guernsey Guernsey has a geological history stretching further back into the past than most of Europe. The southern part is constructed of Icart Gneiss . The Icart Gneiss is an augen gneiss of granitic composition containing Orthoclase potassium feldspar . This was formed from a granite dated at Ma 2018 using U Pb dating on zircon grains. A foliated Perelle quartz diorite also called Perelle Gneiss , occurs in the centre and west of the island. This is a calc alkaline tonalitic rock. The foliation was formed around Ma 600 . Rafts of metamorphosed sediments, older than the gneiss are embedded between them. The Pleinmont Formation consists of metamorphosed sediments is of unknown age. It is names after Pleinmont Point on the south west tip of the Island. These are from the Brioverian succession. The earlier rocks, known as the pre Cadomian basement, were then deformed in the Cadomian Orogeny . It is unknown whether this is part of a craton , a detached piece of Gondwana , or just a small island of gneiss. The Cobo Granite is from Ma 570 is named after Cobo Bay on the mid north coast. The north end of the island is an unfoliated calc alkaline pluton of the Bordeaux Diorite Complex group consisting of diorite , tonalite , and granodiorite . This is also dated at Ma 570 . On the central east coast around Saint Peter Port is the St Peter Port Gabbro containing layers with olivine , hornblende and two kinds of pyroxene . The igneous plutonic intrusion is 2.5 km from north to south and is 0.8 km thick. The lower and upper portions are layered on the scale of a meter, while millimeter scale layering is found on the uppermost parts. This is also dated at 570 mya. Near Vale Castle the rock is of a type called bojite with interlocking hornblende and plagioclase crystals. During the Quaternary Devensian glaciation, loess was deposited, blown in by wind from the west. The island was only separated from the continent of Europe by ... more details
Image GneissBoulderOsmussaar.jpg thumb Boulder of gneiss breccia on Osmussaar, Estonia, apparently thrown there by the Neugrund impact. Neugrund is a meteorite impact crater crater in Estonia . It is 8 km in diameter and is estimated to have been formed 470 million years ago in the Ordovician period. The crater lies at the bottom of the sea and is not exposed at the surface. However, boulders of gneiss ic breccia found on the coast of Osmussaar , a nearby island, are believed to have been thrown there by the explosion. ref cite Earth Impact DB name Neugrund accessdate 2009 08 19 ref References reflist coord 59 20 N 23 40 E type landmark scale 1000000 display title Impact cratering on Earth DEFAULTSORT Neugrund Crater Category Impact craters of Estonia Category Ordovician impact craters Category L ne County L ne geo stub ro Craterul Neugrund ... more details
Sibbarp is a village and a former parish in Varberg Municipality , Halland , Sweden . Sibbarp was first mentioned in 1354 as Sigbiornathorp . The name is formed of Sigbj rn a male name and thorp . The former Sibbard parish covered an area of 64 km . 1 January 2006 it was merged with Dags s to form Sibbarp Dags s parish . Geology The western parts of the parish are dominated by red gneiss , while the eastern parts are dominated by grey gneiss. The parish is rather hilly. History The parish has several remains from the bronze age bronze and iron age . Iron extraction took place in J rnvirke as well as in neighboring J rnm lle , Tv ker during medieval times. See also Asmund s well Sources Sibbarp och Dags s Kulturbygd med h rliga h jder, betagande bokskog och trolska sj ar, Larsson, Ulf ed. . 1993. Kristinstad Utsikten. ISBN 91 971707 4 7 localities in Varberg Municipality Category Varberg Municipality sv Sibbarp, Varbergs kommun ... more details
Unreferenced date October 2006 The Indian Shield is part of the Indian Craton and occupies two thirds of the southern India n peninsula . The shield has remained relatively stable since its formation, over 3500 million years ago. It is delimited on the west, south and east by the present day coastline and Phanerozoic sediment cover. On the north, it is bounded by the Proterozoic Province. In the northeast, it is bounded by the Godavari graben preserving the Precambrian pakhal rocks and Gondwana sediments. The important components that make up the shield are The Dharwar craton with its characteristic Archaean volcanic plutonic belts surrounded by the vast gneiss ic terrain. The southern granulite gneiss terrain of Tamil Nadu Kerala . The Eastern Ghat Mobile Belt EGMB along the east coast The intra cratonic Purana basins with thick sequences of platform facies rocks and or rift related sediment s. Category Cratons Category Geology of India Geology stub ... more details
Unreferenced stub auto yes date December 2009 Orphan date December 2009 Vaasa granite is a Migmatite migmatitic Paleoproterozoic garnet bearing Granite granitoid with variable amounts of gneiss ose enclaves. The name refers to occurrences at Vaasa , on the west coast of Finland . See also List of rock types DEFAULTSORT Vaasa Granite Regional geology stub Category Plutonic rocks ... more details
The Thompson Belt , also referred to as the Thompson Nickel Belt , is an Archean and early Proterozoic geologic feature in Manitoba , Canada . It contains gneiss related to deformation of the Trans Hudson orogeny . ref http adsabs.harvard.edu abs 1992JSG....14..775F Tectonic interpretations of systematic variations in quartz c axis fabrics across the Thompson Belt ref References reflist Category Geology of Manitoba Category Archaean Category Proterozoic Canada geology stub ... more details
Arnold Cove coor dm 77 25 S 163 46 E is a cove along the west margin of McMurdo Sound between Gneiss Point and Marble Point , Victoria Land . Named by Advisory Committee on Antarctic Names US ACAN for Charles L. Arnold , leader of a United States Antarctic Research Program USARP party that made an engineering study of Marble Point, McMurdo Station and Williams Field in the 1971 72 season. usgs gazetteer Category Geography of Antarctica EAntarctica geo stub ... more details
Orphan date November 2010 Kolich Point coor dm 77 21 S 163 33 E is a rock point located midway between Spike Cape and Gneiss Point on the east coast of Victoria Land . It was named by the Advisory Committee on Antarctic Names US ACAN for Thomas M. Kolich , a geophysicist who participated in the United States Antarctic Research Program USARP geophysical survey of the Ross Ice Shelf in the 1973 74 and 1974 75 seasons. usgs gazetteer Category Geography of Antarctica RossDependency geo stub ... more details
Garnet Point coor dm 66 56 S 143 46 E is a rocky coastal point consisting of garnet gneiss, located at the west side of the entrance to Watt Bay . Discovered by the Australasian Antarctic Expedition 1911 14 under Douglas Mawson , and named by the Australasian Antarctic Expedition geological party led by Frank L. Stillwell . usgs gazetteer antarctica geo stub Category Geography of Antarctica ... more details
Orphan date November 2010 Bay of Sails coor dm 77 21 S 163 34 E is a shallow indentation of the coast of Victoria Land between Spike Cape and Gneiss Point . The name was suggested by the Western Geological Party of the British Antarctic Expedition 1910 13 , which while sledging across the ice at the mouth of the bay erected makeshift sails on their man drawn sledge, thereby increasing the speed. usgs gazetteer Category Geography of Antarctica Sails, Bay of EAntarctica geo stub ... more details
The Teufelsmauer is a rock massif in the valley of the Black Pockau between Pobershau and Germany s state border with the Czech Republic . It is made of red and gray gneiss . The valley is also known as the Schwarzwasser Black Water . The countryside is very attractive. A channel called the Gr ne Graben Green Ditch runs down the western slopes of the valley that used to provide the necessary water for the mines near Pobershau. The Teufelsmauer is known today for its rock climbing. Category Ore Mountains de Teufelsmauer Erzgebirge ... more details
Unreferenced stub auto yes date December 2009 Context date October 2009 Molem is a Latin word meaning matter , as in the motto Mens agitat molem meaning Mind moves matter .... most commonly illustrated as mind over matter . See Wikipedia WikiProject Indian cities for details Infobox Indian Jurisdiction native name Molem Mollem type town locator position right state name Goa district North Goa district North Goa altitude 16 postal code vehicle code range sex ratio unlocode website footnotes Mollem in Konkani language Konkani , is a small village in Goa , South India on National Highway 4 near the border with Karnataka in the foothills of the Sahyadri Mountain range at the beginning of Anmod Ghat. It is the primary entry point for Bhagwan Mahaveer Sanctuary and Mollem National Park . Geology Some of the world s oldest rocks are found in this region and are classified as Gneiss Trondjemeitic Gneiss with Rubidium isotope dating estimating them to be at least 3,600 Billion years old. coord missing Goa Category Goa Goa geo stub ... more details
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