FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2022794464> ?p ?o ?g. }

• W2022794464 endingPage "305" @default.
• W2022794464 startingPage "289" @default.
• W2022794464 abstract "Abstract Mafic–ultramafic dykes scattered in the mantle section of ophiolites are generally crystallisation products from common silicate melts. In the frame of a global survey of these melt migration relics in the Oman mantle harzburgites, we discovered a peculiar lithology made essentially of pure diopside ( 0.95 M g M g + F e total 1 ) whose characteristics do not match a magmatic or mantle origin. Arguments against a magmatic or mantle origin for these diopsidites combine compositional and textural evidence. In spite of their refractory composition, they are strongly depleted in Cr (Cr2O3  0.2 wt.%). By the same way other minor elements (Al, Ti, Na…) and rare earth elements have peculiarly low abundances and plot away from magmatic differentiation trends. In a few samples, the paragenetic association includes pure anorthite (An% up to 0.99), minor amounts of forsterite (Fo > 0.95) or traces of andradite. When not deformed, the diopsides are automorphic and their texture points to metamorphic growth in a matrix composed of antigorite and/or carbonate. Diopsidites have textures reminiscent to that of skarns developing in contact metamorphic halos or that of rodingite frequently present in the serpentine bodies of the ophiolitic crust. They frequently appear as dykes (former cracks), with a few mm to few tens of cm wide transitional zones, which contain high amounts of hydrous minerals, between the diopsidite facies and its host rock. The diopsidites are not randomly distributed in the Oman ophiolite, being more abundant near former asthenospheric diapirs emplaced at shallow depth in the lithosphere. We interpret the diopsidites as the footprint of very high temperature circulation of seawater and carbonated fluids (> 800 °C), which may have leached plagioclase rich lithologies before penetrating the mantle (as shown by a well developed positive Eu anomaly). Our data confirm the prediction of McCollom and Shock [T.M. McCollom, E.L. Shock, Fluid-rock interactions in the lower oceanic crust: Thermodynamic models of hydrothermal alteration, J. Geophys. Res. 103 (B1) (1998) 547–575.] who proposed that common anhydrous minerals like pyroxene, plagioclase and olivine may crystallise from high temperature fluids intermediate between silicate melts and supercritical water. This confirms that there is no clear-cut thermal and chemical boundary between the fields of magmatic and hydrothermal crystallisations." @default.
• W2022794464 created "2016-06-24" @default.
• W2022794464 creator A5010879667 @default.
• W2022794464 creator A5049286867 @default.
• W2022794464 creator A5050194752 @default.
• W2022794464 creator A5059702083 @default.
• W2022794464 creator A5079127252 @default.
• W2022794464 date "2007-03-01" @default.
• W2022794464 modified "2023-10-10" @default.
• W2022794464 title "Oman diopsidites: a new lithology diagnostic of very high temperature hydrothermal circulation in mantle peridotite below oceanic spreading centres" @default.
• W2022794464 cites W1489938111 @default.
• W2022794464 cites W1493472940 @default.
• W2022794464 cites W152608127 @default.
• W2022794464 cites W1557133848 @default.
• W2022794464 cites W1606931860 @default.
• W2022794464 cites W1642827135 @default.
• W2022794464 cites W1934009522 @default.
• W2022794464 cites W1963794532 @default.
• W2022794464 cites W1970768454 @default.
• W2022794464 cites W1978928989 @default.
• W2022794464 cites W1979820932 @default.
• W2022794464 cites W1981306789 @default.
• W2022794464 cites W1988495618 @default.
• W2022794464 cites W1990782149 @default.
• W2022794464 cites W1995049401 @default.
• W2022794464 cites W1995198158 @default.
• W2022794464 cites W2000007996 @default.
• W2022794464 cites W2005292145 @default.
• W2022794464 cites W2007055724 @default.
• W2022794464 cites W2007116652 @default.
• W2022794464 cites W2013634805 @default.
• W2022794464 cites W2014187301 @default.
• W2022794464 cites W2016190794 @default.
• W2022794464 cites W2017723886 @default.
• W2022794464 cites W2020819261 @default.
• W2022794464 cites W2024436619 @default.
• W2022794464 cites W2033825567 @default.
• W2022794464 cites W2035297149 @default.
• W2022794464 cites W2036678044 @default.
• W2022794464 cites W2051911143 @default.
• W2022794464 cites W2054369782 @default.
• W2022794464 cites W2055761381 @default.
• W2022794464 cites W2055875329 @default.
• W2022794464 cites W2056006410 @default.
• W2022794464 cites W2059064471 @default.
• W2022794464 cites W2067725962 @default.
• W2022794464 cites W2071452719 @default.
• W2022794464 cites W2072062807 @default.
• W2022794464 cites W2085035955 @default.
• W2022794464 cites W2090302582 @default.
• W2022794464 cites W2090357808 @default.
• W2022794464 cites W2092174737 @default.
• W2022794464 cites W2106350817 @default.
• W2022794464 cites W2107710538 @default.
• W2022794464 cites W2124177545 @default.
• W2022794464 cites W2129175073 @default.
• W2022794464 cites W2134347319 @default.
• W2022794464 cites W2143045284 @default.
• W2022794464 cites W2162859581 @default.
• W2022794464 cites W2163963449 @default.
• W2022794464 cites W2176574796 @default.
• W2022794464 cites W2185152141 @default.
• W2022794464 cites W2316844675 @default.
• W2022794464 cites W2473121806 @default.
• W2022794464 cites W4241959066 @default.
• W2022794464 doi "https://doi.org/10.1016/j.epsl.2006.12.030" @default.
• W2022794464 hasPublicationYear "2007" @default.
• W2022794464 type Work @default.
• W2022794464 sameAs 2022794464 @default.
• W2022794464 citedByCount "80" @default.
• W2022794464 countsByYear W20227944642012 @default.
• W2022794464 countsByYear W20227944642013 @default.
• W2022794464 countsByYear W20227944642014 @default.
• W2022794464 countsByYear W20227944642015 @default.
• W2022794464 countsByYear W20227944642016 @default.
• W2022794464 countsByYear W20227944642017 @default.
• W2022794464 countsByYear W20227944642018 @default.
• W2022794464 countsByYear W20227944642019 @default.
• W2022794464 countsByYear W20227944642020 @default.
• W2022794464 countsByYear W20227944642021 @default.
• W2022794464 countsByYear W20227944642022 @default.
• W2022794464 countsByYear W20227944642023 @default.
• W2022794464 crossrefType "journal-article" @default.
• W2022794464 hasAuthorship W2022794464A5010879667 @default.
• W2022794464 hasAuthorship W2022794464A5049286867 @default.
• W2022794464 hasAuthorship W2022794464A5050194752 @default.
• W2022794464 hasAuthorship W2022794464A5059702083 @default.
• W2022794464 hasAuthorship W2022794464A5079127252 @default.
• W2022794464 hasConcept C122792734 @default.
• W2022794464 hasConcept C127313418 @default.
• W2022794464 hasConcept C154200439 @default.
• W2022794464 hasConcept C156622251 @default.
• W2022794464 hasConcept C165205528 @default.
• W2022794464 hasConcept C17409809 @default.
• W2022794464 hasConcept C58097730 @default.
• W2022794464 hasConcept C5900021 @default.
• W2022794464 hasConcept C67236022 @default.
• W2022794464 hasConcept C77928131 @default.

• next