Schlumberger Oilfield Glossary, on line at http www.glossary.oilfield.slb.com Display.cfm?Term diapir ... Geological processes Category Structure of the Earth Category Intrusions an Diapiro ca Diapir de Diapir et Diapiir es Diapiro eo Diapiro fr Diapir it Diapiro kk nl Diapirisme no Diapir nn Diapir pl Diapir pt Diapiro ru sk Diap r sl Diapir uk ... more details
Diaper can mean Diaper , an absorbent garment in American English . Diaper or Diapering , a term in heraldry and in decorative art and architecture for a repeating pattern of squares or lozenges made in contrasting colours or textures, in brick, stone or flint flushwork . Diaper , a song by Meat Puppets from You Love Me See also Diapir , a type of magma intrusion in geology. disambig ... more details
its overburden and from then on continue to develop as a purely passive salt diapir. Reactive salt ... in the vertical direction by putting the sides of a former diapir in contact ref Giles, K. A. and Lawton ... more details
File ASTER Richat.jpg thumb right The Richat Structure in the Sahara Desert, Africa, is a true dome. In structural geology , a dome is a deformational feature consisting of symmetrically dipping anticline s their general outline on a geologic map is circular or oval. The strata in a dome are upwarped in the center if the top of a dome is eroded off, the result will be a series of concentric strata that grow progressively older from the outside in, with the oldest rocks exposed at the center. Many geologic domes are too large to be appreciated from the surface, and are apparent only in maps. Well known regional structural domes include the Llano Uplift and the The Ozarks Ozark Dome . ref Monroe, James S., and Reed Wicander. The Changing Earth Exploring Geology and Evolution. 2nd ed. Belmont Wadsworth Publishing Company, 1997. ISBN 0 314 09577 2 ref Domes formed by intrusives Localized domes may be formed when magma forms a shallow intrusion warping the overlying stratum strata . An example would be the laccolith domes of the Henry Mountains of southeastern Utah . Salt dome s are formed above a diapir ic intrusion of low density evaporite rocks. See also Anticline Basin geology Basin Granite dome Petroleum reservoir Resurgent dome Salt dome References references commonscat Natural domes External links Category Geologic domes Category Rock formations Category Structural geology tectonics stub es Domo geolog a nl Dome geologie nn Dome pt Domo geologia uk ... more details
Image SaltGlaciers ZagrosMtns 20010810.jpg thumb Salt domes hills and salt glaciers dark areas in the Zagros Mountains of southern Iran . A salt glacier is a flow of salt typically halite that is created when a rising diapir in a salt dome breaches the surface. Gravity causes the salt to flow like glaciers into adjacent valleys. Most of the flow occurs during the winter, when the salt is wet, as salt strength is critically dependent on its water content. The resulting tongue shaped bodies can extend for kilometers, with repeating bow shaped ridges separated by crevasse like gullies and with steep sides and fronts. Clay mineral Clays may be brought up with the salt, turning it dark. The salt glaciers of Iran ref cite web url http earthobservatory.nasa.gov Newsroom NewImages images.php3?img id 16435 title Iran s Salt Glaciers work NASA Earth Observatory accessdate 2006 04 27 ref ref Talbot, C.J. and Rogers, E.A. 1980. Seasonal movements in a salt glacier in Iran . Science , 208 , 395 397. ref are halite while the salt glacier of L neburg Kalkberg , Germany is composed of gypsum and other carbonate minerals . References references Urai, J.L., Spiers, C.J., Zwart, H.J. & Lister, G.S. 1986. Weakening of rock salt by water during long term creep. Nature, 324, 554 557 Category Sediments geomorph stub ca Glacera salina de Salzgletscher es Glaciar salino fa ja ... more details
otheruses2 Corona In planetary geology , a corona plural coronae is an oval shaped feature. Coronae appear on both the planet Venus and Uranus s moon Miranda moon Miranda and may be formed by upwellings of warm material below the surface. Coronae on Venus see also List of coronae on Venus Image Fotla Corona PIA00202.jpg thumb 200px Fotla Corona On Venus, coronae are large typically several hundred kilometres across , crown like, volcanic features. Coronae were first identified in 1983, when the radar imaging equipment aboard the Venera 15 and Venera 16 spacecraft produced higher resolution images of some features previously thought to be impact craters. It is believed that coronae are formed when plumes of rising hot material in the mantle push the crust upwards into a dome shape, which then collapses in the centre as the molten magma cools and leaks out at the sides, leaving a crown like structure the corona. The largest corona on Venus is the Artemis Corona , which is 2100 km in diameter. Coronae on Miranda see also List of geological features on Miranda Coronae The small Uranian moon Miranda sports ovoid features that are very large in relation to its size. They may be formed by diapir s upwellings of warm ice. ref name Pappalardo cite conference first Pappalardo last R. coauthors Greeley, R. title Structural evidence for reorientation of Miranda about a paleo pole booktitle In Lunar and Planetary Inst., Twenty Fourth Lunar and Planetary Science Conference. Part 3 N Z pages 1111 1112 year 1993 url http adsabs.harvard.edu abs 1993LPI....24.1111P accessdate 2006 08 05 ref Notes references Category Surface features of bodies of the Solar System crater stub de Corona Planetologie fr Couronne g ologie plan taire it Corona esogeologia nl Corona planetaire geologie pt Corona geologia planet ria zh ... more details
The Orca Basin is a mid slope, silled, mini basin in the northern Gulf of Mexico some 300 km southwest of the Mississippi River mouth on the Louisiana continental slope . ref name Meckler Meckler, A. N., et. al., Glacial to Holocene terrigenous organic matter input to sediments from Orca Basin, Gulf of Mexico, Earth and Planetary Science Letters 272 2008 251 263 http www.eawag.ch organisation abteilungen surf publikationen 2008 meckler ref It is unique amongst the mini basins in this area, in containing a large brine pool of Hypoxia environmental anoxic salt brine . The lake is approximately convert 123 km2 abbr on in area and up to convert 220 m abbr on deep ref name Pilcher Pilcher, R.S. and Blumstein, R.D. 2007. Brine volume and salt dissolution rates in Orca Basin, northeast Gulf of Mexico. AAPG Bulletin 91 no. 6 p. 823 833 http aapgbull.geoscienceworld.org cgi content abstract 91 6 823 Abstract ref under convert 2400 m abbr on depth of Gulf water ref name Meckler and is derived from Solvation dissolution of underlying Jurassic age Louann Salt . With a volume of convert 13.3 km3 abbr on the pool results from the dissolution of about 3.62 billion tonnes of the Louann Salt bed into seawater. ref name Pilcher The basin owes its shape to ongoing salt tectonics and is surrounded by salt diapir s. ref name Meckler References reflist External links http oceanexplorer.noaa.gov explorations 02mexico background brinepool brinepool.html Carney, Bob, Lakes Within Oceans, Ocean Explorer coord 26 56 46 N 91 20 44 W display title Category Anoxic waters Category Gulf of Mexico Category Sedimentary basins of North America tectonics stub ... more details
Orphan date April 2011 The Darwin Rise is broad triangular region in the south central Pacific Ocean where there is a concentration of atoll s. In 1964, Henry William Menard Henry Menard proposed that this was a superswell raised by volcanism during the Cretaceous 120 80 mya . A problem with this conjecture is that this region actually has a sea floor at a normal depth that happens to possess an abundance of sea mount s. ref name delaughter et al2005 ref name foulger2010 Instead this feature may have formed from diapir s or Mantle plume plumes rising from the Earth s upper mantle , which results in chains of sea mounts along the direction of the plate motion. However, this idea remains in dispute and an alternate hypothesis involving multiple plumelets has been proposed. ref name jgr104 B5 10571 References reflist refs ref name delaughter et al2005 cite book authors DeLaughter, J. E. Stein, C. A. Stein, S. page 272 editors Foulger, Gillian R. Natland, James H. Presnall, Dean C. Anderson, Don L. chapter Hotspots A view from the swells title Plates, Plues, and Paradigms publisher The Geological Society of America isbn 0813723884 year 2005 ref ref name foulger2010 cite book first Gillian R. last Foulger year 2010 page 220 title Plates vs Plumes A Geological Controversy publisher John Wiley and Sons isbn 1444336797 ref ref name jgr104 B5 10571 cite journal author Janney, Philip E. Castillo, Paterno R. title Isotope geochemistry of the Darwin Rise seamounts and the nature of long term mantle dynamics beneath the south central Pacific journal Journal of Geophysical Research volume 104 issue B5 pages 10571 10590 month May year 1999 doi 10.1029 1998JB900061 bibcode 1999JGR...10410571J ref Category Underwater ridges of the Pacific Ocean marine geo stub ... more details
Image Connolley Basin Western Australia.jpg thumb right Landsat image of the Connolly Basin crater circular feature in centre screen capture from NASA World Wind Image Connolly Basin Western Australia oblique.jpg thumb right Oblique Landsat image draped over digital elevation data x10 vertical exaggeration , Connolly Basin crater circular depression in centre screen capture from NASA World Wind Connolly Basin is a 9 km diameter impact crater located in the Gibson Desert of central Western Australia . ref cite Earth Impact DB name Connolly Basin linkname connolly basin accessdate 2009 08 19 ref It lies adjacent to the Talawana Track 45 km west of the junction Windy Corner with the Gary Highway , but is difficult to access due to the remoteness of the area. Originally thought to be a diapir salt dome , an impact origin was first proposed in 1985. ref name Shoemaker 1985 Shoemaker E.M. & Shoemaker C.S. 1985. Impact structures of Western Australia. 48th Annual Meeting of the Meteoritical Society, Abstracts. Meteoritics 20, 754 756. http adsabs.harvard.edu cgi bin nph bib query?bibcode 1985Metic..20R.754S& db key AST& data type HTML& format & high 457bf7462f31013 ref sup , sup ref name Shoemaker 1986 Shoemaker E.M. & Shoemaker C.S. 1986. Connolly Basin a probable eroded impact crater in Western Australia. Lunar and Planetary Science Conference XVII, Abstracts, p. 797 798. http adsabs.harvard.edu cgi bin nph bib query?bibcode 1986LPI....17..797S& db key AST& data type HTML& format & high 457bf7462f31013 ref The depression has a topographic rim 25 30 m high, while the centre displays a slight circular rise about 1 km in diameter and 5 m high exposing strongly deformed and steeply dipping bedrock interpreted as a central uplift. ref name Shoemaker 1989 Shoemaker E.M. & Shoemaker C.S. 1989. Geology of the Connolly Basin impact structure, Western Australia. In Lunar and Planetary Science Conference XX, Abstracts p. 1008 1009. http adsabs ... more details
Image Mt Toondina crater.jpg thumb right Landsat image of Mount Toondina crater screen capture from the NASA World Wind Mount Toondina crater is an impact structure or astrobleme , the eroded remnant of a former impact crater , situated in northern South Australia 45 km south of the township of Oodnadatta, South Australia Oodnadatta . ref cite Earth Impact DB name Mount Toondina linkname mounttoondina accessdate 2009 08 19 ref Mount Toondina is the high point of a circular topographic feature rising out of an otherwise relatively flat desert area of the Eromanga Basin . An impact origin was first suggested in 1976, challenging the earlier diapir salt dome hypothesis, ref name Youles 1976 Youles I.P. 1976. Mount Toondina impact structure. Geological Survey of South Australia Quarterly Geological Notes 60, 10 12. ref and strongly supported by subsequent studies. ref name Shoemaker 1988 Shoemaker E.M. & Shoemaker C.S. 1988. Impact Structures of Australia 1987 . Lunar and Planetary Science Conference XIX, 1079 1080. http adsbit.harvard.edu cgi bin nph iarticle query?bibcode 1988LPI....19.1079S Abstract ref A Geophysics geophysical survey using gravity methods indicates an internal structure typical of complex impact craters, including an uplifted centre, and suggests that the original crater was about 3 4 km in diameter. ref name Plescia 1991 Plescia J.B., Shoemaker E.M. & Shoemaker C.S. 1991. Gravity survey of the Mt. Toondina impact structure, South Australia. Lunar and Planetary Science Conference XXII, 1079 1080. http adsbit.harvard.edu cgi bin nph iarticle query?bibcode 1991LPI....22.1079P&data type PDF HIGH&type PRINTER&ext .pdf Abstract ref ref name Plescia 1994 cite journal author Plescia J.B., Shoemaker E.M. & Shoemaker C.S. title Gravity survey of the Mount Toondina impact structure, South Australia journal Journal of Geophysical Research volume 99 E6 pages 13167 13179 year 1994 doi 10.1029 94JE00660 ref The crater must be younger than the Early Cret ... more details
seealso Geology of the Pyrenees Image Andorra Geology.PNG 370px thumb right Andorra is located in the Axial Zone of the central Pyrenees mountain range in south western Europe. This means that it has intensely folded and thrusted rocks formed when the Iberian peninsula was rotated onto the European continent. Rocks from the Cambrian or Ordovician occur in the form of Conglomerate geology conglomerate , limestone , phyllite , quartzite , and slate . Diapir s of slate from the Silurian Period are found in the Llavirsi syncline near Bixessarri in the south west. Gneiss and schist are found in the cores of anticline s in the north east of the country. This gneiss contains muscovite . The antiforms are connected with near horizontal shear zone s, containing nappe s of Metamorphism metamorphosed sediments. Younger overlying Paleozoic metamorphosed sediments found over most of Andorra have also been steeply folded. In the south east of the country is an alkaline granite from a batholith called Mt Louis Andorra Batholith. It extends into Spain and covers an area of 600 km sup 2 sup . Different rock composition zones occur with monzogranite found at the centre, quartz diorite at the edge and granodiorite in intermediate parts. The batholith has caused metamorphism on its western edge. The base of the batholith is exposed in the east of Andorra. In the Central and Eastern Pyrenees, which includes Andorra, no fossils older than the Caradoc age Ordovician Caradoc 450 460 million years ago have been found. ref name jd1990 Julivert M and Dur n H 1990 . Paleozoic stratigraphy of the Central and Northern part of the Catalonian Coastal Ranges NE Spain . Acta Geologica Hispanica . 25 1 2 3 12. ref Glaciation Expand section date December 2009 Andorra was extensively glaciated during the Quaternary glaciers flowed down all of the major valleys of Andorra, merging into one large glacier at Escaldes Engordany , which in the coldest stage reached as far south as Pont de la Fonta ... more details
Amos Frumkin is an Israeli Jews Israeli geologist. Amos Frumkin 1953 is a professor of geology at the Hebrew University of Jerusalem . ref Jerusalem Tunnel Linked to Bible Stefan Lovgren for National Geographic News September 11, 2003 http news.nationalgeographic.com news 2003 09 0911 030911 SiloamTunnel.html ref Amos Frumkin was born in Tel Aviv , Israel in 1953. He wrote his Ph.D. thesis on The karst system of the Mount Sdom salt diapir . ref http geography.huji.ac.il personal Frumkin Frumkin.html ref His expertise is the geology of caves. ref Scientists Discover 8 New Species By ARON HELLER The Associated Press Thursday, June 1, 2006 http www.washingtonpost.com wp dyn content article 2006 06 01 AR2006060101163.html ref In 2003, Frumkin led a team that radiocarbon dating radiocarbon dated Hezekiah s Tunnel . ref cite journal last Coghlan first Andy date 10 September 2003 title Radio dating authenticates Biblical tunnel journal New Scientist url http www.newscientist.com article dn4156 radiodating authenticates biblical tunnel.html ref And is the author of the generally accepted explanation of how a tunnel dug by two teams working from opposite ends was engineered by the ancient Israelites before the development of trigonometry. ref Frumkin, Amos and Shimron, Aryeh, Tunnel engineering in the Iron Age Geoarchaeology of the Siloam Tunnel, Jerusalem, Journal of Archaeological Science, vol. 33, no. 2, February 2006, Pages 227 237. ref Published works The Rise and Fall of the Dead Sea ref http cojs.org articles BAR 202001 20Nov Dec The 20Rise 20and 20Fall 20of 20the 20Dead 20Sea.pdf The Rise and Fall of the Dead Sea, Amos Frumkin and Yoel Elitzur, BAR 27 06, Nov Dec 2001 ref Frumkin, Amos and Shimron, Aryeh, Tunnel engineering in the Iron Age Geoarchaeology of the Siloam Tunnel, Jerusalem, Journal of Archaeological Science, vol. 33, no. 2, February 2006, Pages 227 237. References reflist Persondata Metadata see Wikipedia Persondata . NAME Frumkin, Amos ALTE ... more details
from one main deformation event, or via diapir ism from underlying magmatic intrusions or movement of upwardly mobile, mechanically ductile material such as rock salt salt dome and shale shale diapir ... more details
lead too short date February 2010 Image Yosemite 20 bg 090404.jpg thumb 250px Half Dome, a granite monolith in Yosemite National Park and part of the Sierra Nevada batholith . A batholith from Greek bathos , depth lithos , rock is a large emplacement of igneous Intrusion geology intrusive also called plutonic rock that forms from cooled magma deep in the Earth s Crust geology crust . Batholiths are almost always made mostly of felsic or intermediate rock types, such as granite , quartz monzonite , or diorite see also granite dome . Formation Although they may appear uniform, batholiths are in fact structures with complex histories and compositions. They are composed of multiple masses, or pluton s , bodies of igneous rock of irregular dimensions typically at least several kilometers that can be distinguished from adjacent igneous rock by some combination of criteria including age, composition, texture, or mappable structures. Individual plutons are crystallized from magma that traveled toward the surface from a zone of partial melting near the base of the Earth s crust. Traditionally, these plutons have been considered to form by ascent of relatively Buoyancy buoyant magma in large masses called plutonic diapir diapirs . Because the diapirs are liquified and very hot, they tend to rise through the surrounding native Country rock geology country rock, pushing it aside and partially melting it. Most diapirs do not reach the surface to form volcano volcanoes , but instead slow down, cool, and usually solidify 5 to 30 kilometers underground as plutons hence the use of the word pluton in reference to the Ancient Rome Roman god of the underworld Pluto god Pluto . It has also been proposed Who date September 2009 that plutons commonly are formed not by diapiric ascent of large magma diapirs, but rather by aggregation of smaller volumes of magma that ascended as Dike geology dikes . Citation needed date September 2009 A batholith is formed when many plutons converge to form ... more details
refimprove date January 2012 Image Skagit gneiss Cascades.jpg thumb Banded gneiss with dike of granite orthogneiss. Image NotchPeakDike.JPG thumb An intrusion Notch Peak monzonite inter fingers partly as a dike with highly metamorphosed host rock Cambrian carbonate rock s . From near Notch Peak, House Range , Utah . A dike or dyke in geology is a type of sheet intrusion referring to any geologic body that cuts discordant ly across planar wall rock structures, such as bedding or foliation massive rock formations, like igneous magmatic intrusions and salt diapir s. Dikes can therefore be either Intrusion geology intrusive or sediment ary in origin. Magmatic dikes border 0 align left style float left Image Dike diabase AZ.jpg thumb left A diabase dike crosscutting horizontal limestone beds in Arizona. Image Geological Dike Cross Island Trail Alaska.jpg thumb left A small dike on the Baranof Cross Island Trail , Alaska . Image Intersecting Dikes in Black Canyon of the Gunnison.jpg thumb left Dikes in the Black Canyon of the Gunnison National Park, Colorado, USA . An intrusive dike is an igneous body with a very high aspect ratio , which means that its thickness is usually much smaller than the other two dimensions. Thickness can vary from sub centimetre scale to many metres, and the lateral dimensions can extend over many kilometres. A dike is an intrusion into an opening cross cutting fissure vent fissure , shouldering aside other pre existing layers or bodies of rock this implies that a dike is always younger than the rocks that contain it. Dikes are usually high angle to near vertical in orientation, but subsequent tectonic deformation may rotate the sequence of strata through which the dike propagates so that the latter becomes horizontal. Near horizontal, or conformable intrusions, along bedding planes between stratum strata are called intrusive Sill geology sills . Sometimes dikes appear as swarms, consisting of several to hundreds of dikes emplaced more or less c ... more details
via Rift extensional processes at the tops of diapir s, or upwellings of warm ice. ref name chaikin2001 ..., probably a consequence of the diapir activity. Miranda s past geological activity is believed ... more details
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