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- W3093472550 startingPage "1638" @default.
- W3093472550 abstract "The Chaldoran ophiolite in NW Iran and at the Turkish border is a part of the larger Khoy ophiolite. Serpentinized peridotites, pillow basalt, cumulate and isotropic gabbro, pelagic limestone, and radiolarite along with volcano‐sedimentary units are the main rock types in the area. These rocks are mixed together in some places as tectonic and “coloured” mélanges. The gabbro consituent of this ophiolite is either fresh or is metamorphosed up to upper greenschist facies. These meta‐basic rocks contain relatively large crystals of plagioclase and clinopyroxene, partially changed to amphibole. Metamorphic epidote is formed in some samples. Whole‐rock chemistry of these rocks shows a basaltic magmatic composition. Low SiO 2 contents along with relatively high MgO and FeO total contents testify for a mantle source for the parental magma of the studied samples, intermediate between tholeiitic and calc‐alkaline series. LREE and HFSE are slightly depleted and LILE show enrichment in the studied samples and Ta, Nb, Ti show negative anomalies with respect to MORBs. All chemical features are compatible with a supra‐subduction zone setting for the rocks. The studied rocks are similar to primitive arc and less evolved rocks, geochemically. Also the samples show both MORB‐like magmas, formed at the initial stage of a subduction and IAT chemical features. U–Pb dating of zircons on the gabbro sample gave 107.5 ± 1.3 Ma (Albian) crystallization age. The metabasites from the Chaldoran ophiolite are similar to intra‐oceanic ophiolite‐related igneous rocks from the Zagros suture zone in Iran and NE Iraq and equivalent rocks from the Neotethyan sutures in east Turkey and Armenia and basic rocks from the Late Cretaceous ophiolites of the outer Zagros and Taurus, which are related to the subduction initiation (SI) stage." @default.
- W3093472550 created "2020-10-22" @default.
- W3093472550 creator A5022366584 @default.
- W3093472550 creator A5022927689 @default.
- W3093472550 creator A5058833801 @default.
- W3093472550 date "2020-10-15" @default.
- W3093472550 modified "2023-09-24" @default.
- W3093472550 title "Early Cretaceous (Albian) intra‐oceanic subduction in northern branch of Neotethys in <scp>NW</scp> Iran: Zircon <scp>U–Pb</scp> geochronology and geochemistry of ophiolitic metagabbros from the Chaldoran area" @default.
- W3093472550 cites W1487292156 @default.
- W3093472550 cites W1566514932 @default.
- W3093472550 cites W1593136970 @default.
- W3093472550 cites W1654749589 @default.
- W3093472550 cites W1730466325 @default.
- W3093472550 cites W1781864697 @default.
- W3093472550 cites W1952258784 @default.
- W3093472550 cites W1964458509 @default.
- W3093472550 cites W1964909252 @default.
- W3093472550 cites W1964965476 @default.
- W3093472550 cites W1965122248 @default.
- W3093472550 cites W1967831326 @default.
- W3093472550 cites W1969845853 @default.
- W3093472550 cites W1970438719 @default.
- W3093472550 cites W1973636328 @default.
- W3093472550 cites W1975066291 @default.
- W3093472550 cites W1976963145 @default.
- W3093472550 cites W1976967272 @default.
- W3093472550 cites W1979214544 @default.
- W3093472550 cites W1982392605 @default.
- W3093472550 cites W1983559176 @default.
- W3093472550 cites W1983637112 @default.
- W3093472550 cites W1990327655 @default.
- W3093472550 cites W1994440181 @default.
- W3093472550 cites W1994935654 @default.
- W3093472550 cites W1999194663 @default.
- W3093472550 cites W2001464641 @default.
- W3093472550 cites W2003589378 @default.
- W3093472550 cites W2004158662 @default.
- W3093472550 cites W2009156014 @default.
- W3093472550 cites W2010741958 @default.
- W3093472550 cites W2014832120 @default.
- W3093472550 cites W2014859860 @default.
- W3093472550 cites W2015088208 @default.
- W3093472550 cites W2016190794 @default.
- W3093472550 cites W2019114317 @default.
- W3093472550 cites W2020933165 @default.
- W3093472550 cites W2022696550 @default.
- W3093472550 cites W2026963820 @default.
- W3093472550 cites W2029145846 @default.
- W3093472550 cites W2031295342 @default.
- W3093472550 cites W2035469355 @default.
- W3093472550 cites W2036174339 @default.
- W3093472550 cites W2040605013 @default.
- W3093472550 cites W2041176411 @default.
- W3093472550 cites W2047064423 @default.
- W3093472550 cites W2050588252 @default.
- W3093472550 cites W2064096934 @default.
- W3093472550 cites W2066639656 @default.
- W3093472550 cites W2067398950 @default.
- W3093472550 cites W2067593179 @default.
- W3093472550 cites W2069412307 @default.
- W3093472550 cites W2070782043 @default.
- W3093472550 cites W2085816218 @default.
- W3093472550 cites W2087500496 @default.
- W3093472550 cites W2088496938 @default.
- W3093472550 cites W2091751394 @default.
- W3093472550 cites W2093369526 @default.
- W3093472550 cites W2107282719 @default.
- W3093472550 cites W2107685244 @default.
- W3093472550 cites W2112435406 @default.
- W3093472550 cites W2119606789 @default.
- W3093472550 cites W2127502490 @default.
- W3093472550 cites W2131545507 @default.
- W3093472550 cites W2135910519 @default.
- W3093472550 cites W2138522501 @default.
- W3093472550 cites W2139326036 @default.
- W3093472550 cites W2139788788 @default.
- W3093472550 cites W2140054472 @default.
- W3093472550 cites W2144461623 @default.
- W3093472550 cites W2145191782 @default.
- W3093472550 cites W2151802570 @default.
- W3093472550 cites W2159082531 @default.
- W3093472550 cites W2161188118 @default.
- W3093472550 cites W2173922290 @default.
- W3093472550 cites W2189159051 @default.
- W3093472550 cites W2270565828 @default.
- W3093472550 cites W2282273172 @default.
- W3093472550 cites W2287348858 @default.
- W3093472550 cites W2439389049 @default.
- W3093472550 cites W2560394414 @default.
- W3093472550 cites W2605032035 @default.
- W3093472550 cites W2616962719 @default.
- W3093472550 cites W2754458138 @default.
- W3093472550 cites W2768374694 @default.
- W3093472550 cites W2901782286 @default.
- W3093472550 cites W2904082105 @default.
- W3093472550 cites W2906604016 @default.
- W3093472550 cites W2922472610 @default.
- W3093472550 cites W2973132507 @default.