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searching for Igneous intrusion 90 found (139 total)

Fold (geology) (3,011 words) [view diff] exact match in snippet view article

by differential compaction or due to the effects of a high-level igneous intrusion e.g. above a laccolith. The fold hinge is the line joining points

Geology of the British Virgin Islands (87 words) [view diff] exact match in snippet view article find links to article

basement rocks, overlain by Paleogene andesite and basalt. Folding and igneous intrusion took place in the Eocene and Oligocene. The islands are separated

Xenolith (771 words) [view diff] exact match in snippet view article find links to article

large-scale inclusion of foreign rock strata at the margins of an igneous intrusion is called a roof pendant. Xenoliths in granodiorite of the Alta Stock

Huangling Anticline (3,356 words) [view diff] exact match in snippet view article find links to article

isostasy, which is related to the crustal thinning. A 1000 km-large igneous intrusion located below the South China Craton was exhumated. The mantle plume

Skaergaard intrusion (553 words) [view diff] exact match in snippet view article find links to article

7169°W / 68.1683; -31.7169 The Skaergaard intrusion is a layered igneous intrusion in the Kangerlussuaq area of East Greenland and is composed of various

Lithostratigraphy (1,390 words) [view diff] exact match in snippet view article find links to article

across a formation of sedimentary rock, then we can say that the igneous intrusion is younger than the sedimentary rock. The principle of superposition

Zuma Rock (1,279 words) [view diff] exact match in snippet view article find links to article

Zuma Rock is a large natural monolith, or inselberg, an igneous intrusion composed of gabbro and granodiorite, in Niger State, Nigeria. It is located

Cassiar Terrane (85 words) [view diff] exact match in snippet view article find links to article

strata and contains the Cassiar Batholith, a 100-million-year-old igneous intrusion and the single largest intrusive body in the hinterland of the Canadian

Baula (164 words) [view diff] exact match in snippet view article find links to article

composition. Geologically, the mountain is a laccolith, a type of igneous intrusion. It was formed 3.4 million years ago. Baula is characterized by its

Doros Complex (123 words) [view diff] exact match in snippet view article find links to article

Doros Complex is a differentiated igneous intrusion in the Damaraland region of Namibia. It lies to the northwest of the country's highest peak, Brandberg

Cone sheet (736 words) [view diff] exact match in snippet view article find links to article

A cone sheet is a type of high-level igneous intrusion of subvolcanic rock, found in partly eroded central volcanic complexes. Cone sheets are relatively

Fitful Head (255 words) [view diff] exact match in snippet view article find links to article

cliffs dropping down to the sea are formed mostly from a silica-poor igneous intrusion, itself subject to metamorphism. The upper eastern slopes have a cover

Mount Barr (196 words) [view diff] exact match in snippet view article find links to article

north of the Chilliwack batholith. It is part of a large circular igneous intrusion that was placed along the Fraser Fault 16 to 21 million years ago

Gagarinite-(Ce) (221 words) [view diff] exact match in snippet view article

subhedral grains in pegmatite and aplite pods or lenses in a peralkaline igneous intrusion. It was discovered in 1993 at Strange Lake, Quebec – Labrador, (56°20'N

Acklington Dyke (241 words) [view diff] exact match in snippet view article find links to article

The Acklington Dyke is an igneous intrusion which extends from northwest of Hawick in southern Scotland east-southeastwards through the Borders region

Cleveland Dyke (443 words) [view diff] exact match in snippet view article find links to article

Cleveland-Armathwaite Dyke or Armathwaite-Cleveland Dyke) is an igneous intrusion which extends from Galloway in southern Scotland through Cumbria and

Rutan Hill (1,104 words) [view diff] exact match in snippet view article find links to article

exposures of a much larger alkaline igneous intrusion that underlies the area of Beemerville, New Jersey. This igneous intrusion is part of the larger Cortlandt-Beemerville

Joseph Barrell (699 words) [view diff] exact match in snippet view article find links to article

independently arrived at the theory of stoping as a mechanism for igneous intrusion. He was elected a Fellow of the American Academy of Arts and Sciences

Moss Island (799 words) [view diff] exact match in snippet view article find links to article

Mohawk River and the New York State Barge Canal. It is composed of an igneous intrusion of syenite, and became an island when canal locks were built so boats

Youngs Peak (212 words) [view diff] exact match in snippet view article find links to article

is covered with sedimentary rocks, Saddle Mountain is an exposed igneous intrusion that geologists call a laccolith. The summit of Youngs Peak can be

Kanichee Mine (949 words) [view diff] exact match in snippet view article find links to article

million pounds of metal. The Kanichee area is associated with an igneous intrusion that has been termed the Kanichee layered intrusive complex. This

Donegal batholith (1,175 words) [view diff] exact match in snippet view article find links to article

The Donegal batholith is a large granitic igneous intrusion of early Devonian age that outcrops in County Donegal in Ireland. It consists of at least

Shonkin Sag (1,065 words) [view diff] exact match in snippet view article find links to article

wide near the western mouth of the Shonkin Sag. A laccolith is an igneous intrusion injected between two layers of sedimentary rock. Significant amounts

Saddle Mountain (Delta County, Colorado) (149 words) [view diff] exact match in snippet view article

classic shape of an extinct volcano, Saddle Mountain is an exposed igneous intrusion that geologists call a laccolith. "Saddle Mountain, Colorado". Topozone

Tin Mountain pegmatite (754 words) [view diff] exact match in snippet view article find links to article

The Tin Mountain pegmatite is an igneous intrusion located in the southern Black Hills, South Dakota. It is a part of the Harney Peak Granite dome that

Bushveld Igneous Complex (6,207 words) [view diff] exact match in snippet view article find links to article

The Bushveld Igneous Complex (BIC) is the largest layered igneous intrusion within the Earth's crust. It has been tilted and eroded forming the outcrops

Relative dating (2,164 words) [view diff] exact match in snippet view article find links to article

In geology, when an igneous intrusion cuts across a formation of sedimentary rock, it can be determined that the igneous intrusion is younger than the

The Bugaboos (737 words) [view diff] exact match in snippet view article find links to article

while the Bugaboo intrusion dates to 135 million years ago. The igneous intrusion cooled slowly, forming the crystalline structure of the hard granite

Metamorphic zone (587 words) [view diff] exact match in snippet view article find links to article

caused by high temperatures at low pressure in the vicinity of an igneous intrusion) a local contact aureole of zones is formed around a heat source.

Saint Peters, Pennsylvania (462 words) [view diff] exact match in snippet view article find links to article

fall into the stream, almost filling the creek bed at points. The igneous intrusion that produced these diabase dikes also replaced limestone or marble

Mount Wilson (Colorado) (752 words) [view diff] exact match in snippet view article

San Miguel Mountains, are made up of a large, irregular tertiary igneous intrusion. The Mount Wilson region became the site of intense mining activity

Mount Lamborn (243 words) [view diff] exact match in snippet view article find links to article

North Fork Gunnison River to the west. Mount Lamborn is an eroded igneous intrusion that geologists call a laccolith. North America portal United States

Phacolith (352 words) [view diff] exact match in snippet view article find links to article

Lens-shaped igneous intrusion

Mianus River Gorge (514 words) [view diff] exact match in snippet view article find links to article

contains several types of bedrock including Bedford Augen Gneiss (an igneous intrusion from the Late Devonian period), Hartland Schist, Precambrian and Cambrian

Bwlch Mawr (191 words) [view diff] exact match in snippet view article find links to article

number of other isolated hills in Llŷn, Bwlch Mawr is formed by an igneous intrusion of Palaeozoic age. A single public footpath crosses the southern flanks

Cross-cutting relationships (633 words) [view diff] exact match in snippet view article find links to article

dike and the lower strata are cut by an unconformity A light-gray igneous intrusion in Sweden cut by a younger white pegmatite dike, which in turn is

Stepper Point (1,131 words) [view diff] exact match in snippet view article find links to article

outer end of Stepper Point is made up of Polzeath Slates, with an igneous intrusion that is also the main constituent of Gulland island. Behind this the

Mare Smythii (561 words) [view diff] case mismatch in snippet view article find links to article

Procellarum: Implications of Crater Modification by Viscous Relaxation and Igneous Intrusion Models". Journal of Geophysical Research. 100 (E10): 21201–21218.

Crazy Mountains (784 words) [view diff] exact match in snippet view article find links to article

state near Ekalaka, the Long Pines. The Big Timber Stock, a large igneous intrusion, forms the bedrock in the Crazy Mountains. The stock is of Tertiary

Mount Sopris (986 words) [view diff] exact match in snippet view article find links to article

the proposal. Mount Sopris is believed to have been formed by an igneous intrusion 10,000 feet below the Earth's surface, geologically referred to as

Stillwater igneous complex (866 words) [view diff] exact match in snippet view article find links to article

geologically train the Apollo Astronauts in recognizing a coarse grained igneous intrusion. Astronauts who would use this training on the Moon included Apollo

Beacon Rock State Park (651 words) [view diff] exact match in snippet view article find links to article

Monument in Wyoming is larger than Beacon Rock, but is considered an igneous intrusion rather than necessarily a "single rock." Beacon Rock is known for

Gyrn Ddu (253 words) [view diff] exact match in snippet view article find links to article

number of other isolated hills in Llŷn, Gyrn Ddu is formed by an igneous intrusion of Palaeozoic age. The northwestern slopes of Gyn Ddu have been quarried

Bob White (geophysicist) (823 words) [view diff] exact match in snippet view article

structure of the Taupo Volcanic Zone, New Zealand: stretching and igneous intrusion, Geophysical Research Letters, vol. 31, L13615, doi:10.1029/2004GL019885

Moel Oernant (341 words) [view diff] exact match in snippet view article find links to article

of the Gamlan Formation of the Harlech Group are also present. An igneous intrusion of microtonalite lies to the west of the summit and the whole hill

Rock cycle (2,213 words) [view diff] exact match in snippet view article find links to article

metamorphism is caused when a body of rock comes into contact with an igneous intrusion that heats up this surrounding country rock. This contact metamorphism

Umm al Binni lake (983 words) [view diff] exact match in snippet view article find links to article

rejects karst topography, salt doming, tectonic deformation, and igneous intrusion as well as possible bombing or man-made origins. However, a 2018 study

Geography and ecology of Philmont Scout Ranch (1,178 words) [view diff] exact match in snippet view article find links to article

Ridge, and many of the ridges in the northwest of the ranch, is an igneous intrusion of dacite porphyry formed in the Paleogene Period of the Cenozoic

Rapp Creek (Tinicum Creek tributary) (380 words) [view diff] exact match in snippet view article

Lockatong Formation Diabase Rapp Creek begins in a region of diabase, an igneous intrusion rising during the Jurassic and the Triassic which consists of dark

Pluton emplacement (1,352 words) [view diff] case mismatch in snippet view article find links to article

Skaergaard intrusion Daly, Reginald A. (1903). "The Mechanics of Igneous Intrusion". American Journal of Science. 15. Issue. 88 (88): 269–298. Bibcode:1903AmJS

Manhattan, Nevada (1,337 words) [view diff] exact match in snippet view article find links to article

gold was transported by solutions in a hydrothermal cell from an igneous intrusion, and perhaps from country rock, to the host rock. When the gold at

Fredericktown, Missouri (2,140 words) [view diff] exact match in snippet view article find links to article

Wayback Machine, a colorful decorative stone found only in a single igneous intrusion dike on Mount Devon. As of the census of 2010, there were 3,985 people

Joint (geology) (2,490 words) [view diff] exact match in snippet view article

surface of a lava lake or flood basalt flow or the sides of a tabular igneous intrusion into either lava of the lake or lava flow or magma of a dike or sill

Dale Enterprise, Virginia (1,179 words) [view diff] exact match in snippet view article find links to article

feet, on the northeastern foot of the 1898-foot high Mole Hill, an igneous intrusion that is believed to have been the core of a volcano that has eroded

Richat Structure (2,340 words) [view diff] exact match in snippet view article find links to article

rocks are interpreted as indicating the presence of a large alkaline igneous intrusion that currently underlies the structure and was created by uplifting

Pikes Peak (3,138 words) [view diff] exact match in snippet view article find links to article

least 20 miles (32 km) beneath the Earth's surface, formed by an igneous intrusion during the Precambrian, approximately 1.05 billion years ago, during

Yoho National Park (1,083 words) [view diff] exact match in snippet view article find links to article

Charles Doolittle Walcott. In the southeastern corner of the park is an igneous intrusion known as the Ice River Complex containing deposits of sodalite, an

Bararite (2,100 words) [view diff] exact match in snippet view article find links to article

to cryptohalite. In Barari, burning-coal gases go through a dike (igneous intrusion) of mica and peridotite. The sulfur dioxide must attack apatite in

Lawrence Wager (1,386 words) [view diff] exact match in snippet view article find links to article

calc-alkaline Rocks, magmatic differentiation, and the mechanics of igneous intrusion'. His nominators included Herbert Hawkins (his former Head of Department

List of National Natural Landmarks in New York (602 words) [view diff] exact match in snippet view article find links to article

848244°W / 43.039771; -74.848244 (Moss Island) Herkimer State An igneous intrusion in the Erie Canal with the Little Falls at one end. It became an island

Santa Clara Avenue Oil Field (970 words) [view diff] exact match in snippet view article find links to article

productive pools were found, both in the Sespe Formation, separated by an igneous intrusion. The finds were in January 1972 and July 1973. Oil is found at great

North Ray (crater) (681 words) [view diff] exact match in snippet view article

be a mixture of closely related anorthositic rocks from a layered igneous intrusion, and it has been shown to be 4.47 b.y. old, with about 50 m.y. exposure

Cameroon line (3,711 words) [view diff] exact match in snippet view article find links to article

parallel to the Foumban shear zone. The material appears to be an igneous intrusion that may have accompanied reactivation of the shear zone, and may

Devils Tower (3,175 words) [view diff] exact match in snippet view article find links to article

19th century and came to the conclusion that it was formed by an igneous intrusion. In 1907, geologists Nelson Horatio Darton and C. C. O'Harra (of the

Igneous rock (5,657 words) [view diff] exact match in snippet view article find links to article

(dark-coloured) at Cuernos del Paine, Torres del Paine National Park, Chile An igneous intrusion cut by a pegmatite dike, which in turn is cut by a dolerite dike Geology

Bernard Elgey Leake (6,636 words) [view diff] case mismatch in snippet view article find links to article

of the Connemara basic and ultrabasic intrusions in Mechanism of Igneous Intrusion, Editors G. Newall and N. Rast, 103–122. 33. 1970 B.E. Leake. Some

Geology of Shropshire (3,555 words) [view diff] exact match in snippet view article find links to article

Burf and Clee Burf though the summits themselves are formed by an igneous intrusion of dolerite. Generally the Upper Coal Measures are separated from

Watchung Mountains (4,115 words) [view diff] exact match in snippet view article find links to article

approximately 13 miles away Basalt fan structure Cushetunk Mountain, an igneous intrusion south of the Watchungs that also formed during the Mesozoic Lake Passaic

Metamorphism (5,770 words) [view diff] exact match in snippet view article find links to article

aureole in the Henry Mountains, Utah. The greyish rock on top is the igneous intrusion, consisting of porphyritic granodiorite from the Henry Mountains laccolith

Bass Rock (4,897 words) [view diff] exact match in snippet view article find links to article

Carboniferous (Dinantian) age. The rock was first recognised as an igneous intrusion by James Hutton. Hugh Miller visited in 1847 and wrote about the rock's

Kidston Lake (625 words) [view diff] exact match in snippet view article find links to article

Kidston Lake is situated on Devonian granite, which is part of a major igneous intrusion into the local Silurian slate of the "Meguma" group, which has been

Alexander Heron (2,052 words) [view diff] exact match in snippet view article find links to article

Everest itself. He considered that the biotite gneiss was probably an igneous intrusion into the calcareous gneiss. There were no ores or minerals of commercial

Kootenay National Park (3,799 words) [view diff] exact match in snippet view article find links to article

Pleistocene. Just outside the northwestern corner of the park, there is an igneous intrusion known as the Ice River Complex containing deposits of sodalite, an

Collinsville mine disaster (1,758 words) [view diff] exact match in snippet view article find links to article

they were approaching a dangerous type of fault, one containing an igneous intrusion, one in which a piece of rock protrudes across the fault, grinding

Gregory Retallack (3,249 words) [view diff] exact match in snippet view article find links to article

35–64. Retallack, G. J.; Jahren, A. H. (2008). "Methane release from igneous intrusion of coal during Late Permian extinction events". Journal of Geology

Stone Mountain (7,286 words) [view diff] exact match in snippet view article find links to article

by the Skyride aerial tram. Stone Mountain is a pluton, a type of igneous intrusion. Primarily composed of quartz monzonite, the dome of Stone Mountain

Sintra (7,589 words) [view diff] exact match in snippet view article find links to article

the Upper Jurassic and early Cretaceous periods. A metamorphosed igneous intrusion resulted in a narrow halo of metamorphic rocks, but also strongly

Aachen (10,138 words) [view diff] case mismatch in snippet view article find links to article

Ernest Masson (2012). Healy, David (ed.). Faulting, Fracturing and Igneous Intrusion in the Earth's Crust. Vol. 367. Geological Society of London. ISBN 978-1-86239-347-9

Gaps of the Allegheny (2,895 words) [view diff] exact match in snippet view article find links to article

over massive thrust faults; there is little metamorphism, and no igneous intrusion. (Stanley, 421–2) The ridges represent the edges of the erosion-resistant

List of important publications in geology (5,514 words) [view diff] case mismatch in snippet view article find links to article

W.H; Shipton, Z.K.; Sibson, R.H. (eds.). Faulting, Fracturing and Igneous Intrusion in the Earth's Crust. Geological Society, London, Special Publications

Glossary of geology (10,307 words) [view diff] exact match in snippet view article find links to article

component of basalt, dolerite and gabbro. aureole A zone surrounding an igneous intrusion in which country rock shows effects of contact metamorphism. autochthon

Extinction event (14,831 words) [view diff] case mismatch in snippet view article find links to article

Gregory J.; Jahren, A. Hope (1 October 2007). "Methane Release from Igneous Intrusion of Coal during Late Permian Extinction Events". The Journal of Geology

Acadia National Park (9,859 words) [view diff] exact match in snippet view article find links to article

Schoodic Point igneous intrusion

Location hypotheses of Atlantis (9,332 words) [view diff] exact match in snippet view article find links to article

deeply eroded domal structure that overlies a still-buried alkaline igneous intrusion. From 1974 onward, prehistoric artifacts of the area were mapped,

List of national monuments of the United States (3,779 words) [view diff] exact match in snippet view article find links to article

1906 1,347.21 acres (5.5 km2) 468,216 The tower is a monolithic igneous intrusion of volcanic neck rising dramatically 1,267 feet (386 m) above the

Capitanian mass extinction event (7,445 words) [view diff] case mismatch in snippet view article find links to article

Gregory J.; Jahren, A. Hope (1 October 2007). "Methane Release from Igneous Intrusion of Coal during Late Permian Extinction Events". The Journal of Geology

List of possible impact structures on Earth (10,081 words) [view diff] exact match in snippet view article find links to article

sinkhole) Verdi Lake (a glacial cirque) Kondyor Massif or Konder (an igneous intrusion) Salt domes on Melville Island The Richat structure (a geologic dome)

List of Dutch discoveries (10,146 words) [view diff] exact match in snippet view article find links to article

inheritance. The Bushveld Igneous Complex (or BIC) is a large, layered igneous intrusion within the Earth's crust that has been tilted and eroded and now outcrops

Glossary of geography terms (A–M) (26,722 words) [view diff] exact match in snippet view article

such as on the chalk downlands of southern England. diapir A type of igneous intrusion in which a more mobile, ductile, or deformable rock or other material

New Brunswick (9,584 words) [view diff] exact match in snippet view article find links to article

ocean deposits in the Ordovician that were subject to folding and igneous intrusion and that were eventually covered with lava during the Paleozoic, peaking