[{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","@id":"https:\/\/wiki.edu.vn\/en\/wiki19\/cape-johnson-guyot-wikipedia\/#BlogPosting","mainEntityOfPage":"https:\/\/wiki.edu.vn\/en\/wiki19\/cape-johnson-guyot-wikipedia\/","headline":"Cape Johnson Guyot &#8211; Wikipedia","name":"Cape Johnson Guyot &#8211; Wikipedia","description":"From Wikipedia, the free encyclopedia Underwater tablemount in the Pacific Ocean Coordinates: 17\u00b008\u2032N 177\u00b015\u2032W\ufeff \/ \ufeff17.133\u00b0N 177.250\u00b0W\ufeff \/ 17.133; -177.250[1]","datePublished":"2020-05-28","dateModified":"2020-05-28","author":{"@type":"Person","@id":"https:\/\/wiki.edu.vn\/en\/wiki19\/author\/lordneo\/#Person","name":"lordneo","url":"https:\/\/wiki.edu.vn\/en\/wiki19\/author\/lordneo\/","image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"Enzyklop\u00e4die","logo":{"@type":"ImageObject","@id":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","url":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/en.wikipedia.org\/wiki\/Special:CentralAutoLogin\/start?type=1x1","url":"https:\/\/en.wikipedia.org\/wiki\/Special:CentralAutoLogin\/start?type=1x1","height":"1","width":"1"},"url":"https:\/\/wiki.edu.vn\/en\/wiki19\/cape-johnson-guyot-wikipedia\/","wordCount":5518,"articleBody":"From Wikipedia, the free encyclopediaUnderwater tablemount in the Pacific OceanCoordinates: 17\u00b008\u2032N 177\u00b015\u2032W\ufeff \/ \ufeff17.133\u00b0N 177.250\u00b0W\ufeff \/ 17.133; -177.250[1]Cape Johnson Guyot is a guyot in the Pacific Ocean, more precisely in the Mid-Pacific Mountains, and the type locality of guyots. It is of middle Cretaceous age and a number of fossils have been dredged from it.Cape Johnson Guyot is also known as Cape Johnson Seamount or Cape Johnson Tablemount.[2] The guyot was named by Harry Hammond Hess, after his ship the USS\u00a0Cape Johnson; Hess had also named the kind of flat-topped seamount &#8220;guyot&#8221; and another seamount was named after Hess himself.[3] The seamount was first described in a 1946 publication.[4] Both Hess and Cape Johnson were discovered during the same cruise[5] and Cape Johnson Guyot is the type locality of guyots.[6]Table of ContentsGeography and geology[edit]Biology[edit]References[edit]Sources[edit]Geography and geology[edit]The seamount lies in the Mid-Pacific Mountains[7] on their southern side and is a submarine mountain with a flat top that rises[8] over 3,000 metres (10,000\u00a0ft)[9] to a depth of 1,692 metres (5,551\u00a0ft)[10][11]-1,778 metres (5,833\u00a0ft).[12] The flat top has an oval shape and a surface area of 6 by 12 nautical miles (11\u00a0km \u00d7\u00a022\u00a0km; 6.9\u00a0mi \u00d7\u00a013.8\u00a0mi);[13] it is characterized by a limestone dome on the summit, buried beneath sediments; in turn a volcanic hill is buried within the limestone dome.[14] The top of the seamount has a hummocky appearance which has been interpreted as a sediment cover[15] and its southeastern sector has a bank-like shape that resembles that of an atoll.[16] Cape Johnson Guyot is considered to be of Middle Cretaceous age[17] with an age of 120 million years reported[18] and shallow-water fossils were emplaced on it at that time.[19]Apatite,[20]basaltic sandstone containing hypersthene,[21]clay,[22]limestone, manganese crusts,[23]manganese oxide, phosphorite[24] and lithified carbonates have been found on Cape Johnson Guyot;[25] some carbonates of biogenic origin have been altered by apatite.[26]Globigerina ooze is also found on the seamount[27] and can reach substantial thickness; such accumulations might be formed by ocean currents.[28] Similar rocks have been found at other guyots of the Mid-Pacific Mountains.[29]Biology[edit]During the Cretaceous, corals and rudists lived on Cape Johnson Guyot[30] and fossils have been dated to 91-112 million years ago;[31] some corals[32] and rudists are of Albian to Cenomanian age.[33] Fossils of anthozoa,[34]gastropods, reef-building hexacorals,[35]pelecypods, stromatoporoids[36] and Tridacna were also found.[37] The Cretaceous fossils[38]Actinostroma pacifica,[39]Astrocoenia dietzi,[40]Brachyseris montemarina,[41] the caprinid rudists Caprina mediopacifica, Caprina mulleri[42] &#8211; including a detailedly described holotype of the latter[43] &#8211; and Cardita sp.,[44]Lophosmilia fundimaritima,[45]Montastrea menardii,[46]Nerinea sp.[47] and Tiarasmilia casteri occur on Cape Johnson Guyot.[48]Caprina mulleri was also found on other Mid-Pacific Mountains.[49] About 300 species of extant foraminifera have been found on the seamount as well,[50] with additional fossil foraminifera[51] including Paleocene-Eocene specimens that were redeposited by ocean currents.[52] Finally, a cetacean bone of undetermined age has also been found on Cape Johnson Guyot.[53]References[edit]^ Hamilton 1956, p.19^ Marineregions 2019^ BUDDINGTON, p.21^ Hamilton 1956, p.18^ Hamilton 1953, p.213^ Marineregions 2019^ Hamilton and Rex 1959, p.787^ Hamilton 1953, p.213^ Hamilton 1956, p.19^ Hamilton 1953, p.213^ Hamilton 1956, p.20^ Hey and Grigg 1992, p.175^ Hamilton 1956, p.20^ Winterer, Sager and Firth 1995, p.436^ Hamilton 1956, p.18^ Hamilton 1956, p.20^ Shields 1976, p.47^ Morgan 1972, p.12^ Winterer, Sager and Firth 1995, p.436^ El Wardani 1958, p.240^ Heezen and MacGregor 1973, p.667^ Hamilton 1956, p.20^ Hamilton 1953, p.213^ Hill 2005, p.682^ Fischer and Garrison 1967, p.489^ Hamilton and Rex 1959, p.787^ Hamilton 1953, p.213^ Hamilton 1953, p.219^ Heezen and MacGregor 1973, p.655^ Hamilton 1959, p.1409^ Hey and Grigg 1992, p.175^ L\u00f6ser 2010, p.158^ Hamilton 1956, p.26^ Hamilton 1956, p.22^ Hamilton 1956, p.20^ Hamilton 1956, p.22^ UNIVERSITY OF CALIFORNIA SCRIPPS INSTITUTION OF OCEANOGRAPHY. p.5^ Cairns 1991, p.31^ Hamilton 1956, p.61^ Cairns 1991, p.31^ Cairns 1991, p.42^ Sano et al. 2012, p.849^ Masse, Sano and Skelton 2013, p.517^ Cairns 1991, p.66^ Cairns 1991, p.34^ Hamilton 1956, p.59^ Cairns 1991, p.64^ L\u00f6ser 2010, p.161^ Masse, Sano and Skelton 2013, p.515^ Hamilton 1953, p.207^ Hamilton 1953, p.213^ Hamilton 1953, p.219^ Hamilton 1956, p.29Sources[edit]BUDDINGTON, A. F. &#8220;MEMORIAL TO HARRY HAMMOND HESS 1906-1969&#8221; (PDF). Geological Society of America Memorials.Cairns, Stephen D. (1991). &#8220;Catalog of the type specimens of stony corals (Milleporidae, Stylasteridae, Scleractinia) in the National Museum, Smithsonian Institution&#8221;. Smithsonian Contributions to Zoology (514): 1\u201359. doi:10.5479\/si.00810282.514. hdl:10088\/5463.El Wardani, S. A. (1958-12-01). &#8220;Marine geochemistry of germanium and the origin of Pacific pelagic clay minerals&#8221;. Geochimica et Cosmochimica Acta. 15 (3): 237\u2013254. Bibcode:1958GeCoA..15..237E. doi:10.1016\/0016-7037(58)90061-9. ISSN\u00a00016-7037.Fischer, Alfred G.; Garrison, Robert E. (1967). &#8220;Carbonate Lithification on the Sea Floor&#8221;. The Journal of Geology. 75 (4): 488\u2013496. Bibcode:1967JG&#8230;..75..488F. doi:10.1086\/627274. ISSN\u00a00022-1376. JSTOR\u00a030085007. S2CID\u00a0140692191.Hamilton, E.L.; Rex, R.W. (1959). &#8220;Bikini and nearby atolls, Marshall Islands; lower Eocene phosphatized Globigerina ooze from Sylvania Guyot&#8221;. Professional Paper. doi:10.3133\/pp260w. ISSN\u00a02330-7102.Hamilton, Edwin L. (1953). &#8220;Upper Cretaceous, Tertiary, and Recent Planktonic Foraminifera from Mid-Pacific Flat-Topped Seamounts&#8221;. Journal of Paleontology. 27 (2): 204\u2013237. ISSN\u00a00022-3360. JSTOR\u00a01300054.Hamilton, Edwin L. (March 1956), &#8220;Sunken Islands of the Mid-Pacific Mountains&#8221;, 64\u00a0: Sunken Islands of the Mid-Pacific Mountains, Geological Society of America Memoirs, vol.\u00a064, Geological Society of America, pp.\u00a01\u201392, doi:10.1130\/mem64-p1, retrieved 2019-06-17Hamilton, Edwin L. (1 November 1959). &#8220;Thickness and Consolidation of Deep-Sea Sediments&#8221;. GSA Bulletin. 70 (11): 1399\u20131424. doi:10.1130\/0016-7606(1959)70[1399:TACODS]2.0.CO;2. ISSN\u00a00016-7606.Heezen, B.C.; MacGregor, I.D. (November 1973). &#8220;Western Pacific Guyots&#8221;. Initial Reports of the Deep Sea Drilling Project, 20. Initial Reports of the Deep Sea Drilling Project. Vol.\u00a020. U.S. Government Printing Office. doi:10.2973\/dsdp.proc.20.132.1973.Hey, Richard; Grigg, Richard W. (1992-01-10). &#8220;Paleoceanography of the Tropical Eastern Pacific Ocean&#8221;. Science. 255 (5041): 172\u2013178. Bibcode:1992Sci&#8230;255..172G. doi:10.1126\/science.255.5041.172. ISSN\u00a00036-8075. PMID\u00a017756067. S2CID\u00a042274166.Hill, M. N. (2005). The sea. 3, The earth beneath the sea. history. Vol.\u00a03. Cambridge, Massachusetts: Harvard University press. ISBN\u00a00674017307. OCLC\u00a0963997000.L\u00f6ser, Hannes (November 2010). &#8220;Revision of the Cretaceous coral genus Tiarasmilia Wells, 1932 (Scleractinia)&#8221;. www.ingentaconnect.com. Retrieved 2019-06-17.&#8220;Cape Johnson Guyot (Guyot)&#8221;. www.marineregions.org. Retrieved 2019-06-17.Masse, Jean-Pierre; Sano, Shin-Ichi; Skelton, Peter W. (2013-05-01). &#8220;Rudist bivalves and the Pacific in the Late Jurassic and Early Cretaceous&#8221;. Journal of the Geological Society. 170 (3): 513\u2013526. Bibcode:2013JGSoc.170..513S. doi:10.1144\/jgs2012-017. ISSN\u00a00016-7649. S2CID\u00a0128739401.Morgan, W. Jason (1972), &#8220;Plate Motions and Deep Mantle Convection&#8221;, Studies in Earth and Space Sciences, Geological Society of America Memoirs, vol.\u00a0132, Geological Society of America, pp.\u00a07\u201322, doi:10.1130\/mem132-p7, ISBN\u00a09780813711324, retrieved 2019-06-17Sano, Shin-Ichi; Skelton, Peter W.; Watarai, Megumi; Iba, Yasuhiro; Kondo, Yasuo; Sato, Yuichiro (2012). &#8220;First record of an Early Barremian caprinid rudist from Japan \u2013 implications for the palaeobiogeography of the Caprinidae (Bivalvia)&#8221;. Palaeontology. 55 (4): 843\u2013851. doi:10.1111\/j.1475-4983.2012.01156.x. ISSN\u00a01475-4983.Shields, O. (1976). &#8220;A summary of the oldest ages for the world&#8217;s islands&#8221;. Papers and Proceedings of the Royal Society of Tasmania. 110: 35\u201362. doi:10.26749\/rstpp.110.35. ISSN\u00a00080-4703.UNIVERSITY OF CALIFORNIA SCRIPPS INSTITUTION OF OCEANOGRAPHY. &#8220;MIDPAC EXPEDITION August &#8211; September 1950 LIST OF CORES AND DREDGE SAMPLES&#8221; (PDF). Alfred-Wegener-Institut Helmholtz-Zentrum f\u00fcr Polar- und Meeresforschung.Winterer, E.L.; Sager, W.W.; Firth, J.V.; Sinton, J.M., eds. (May 1995). Proceedings of the Ocean Drilling Program, 143 Scientific Results. Proceedings of the Ocean Drilling Program. Vol.\u00a0143. Ocean Drilling Program. doi:10.2973\/odp.proc.sr.143.207.1995."},{"@context":"http:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki19\/#breadcrumbitem","name":"Enzyklop\u00e4die"}},{"@type":"ListItem","position":2,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki19\/cape-johnson-guyot-wikipedia\/#breadcrumbitem","name":"Cape Johnson Guyot &#8211; Wikipedia"}}]}]