FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1993936218> ?p ?o ?g. }

• W1993936218 endingPage "422" @default.
• W1993936218 startingPage "405" @default.
• W1993936218 abstract "Recent experimental studies have established petrogenetic models based on melting processes involving major phases. The possible residual character of trace-element-enriched accessory phases is not considered for temperatures well above the solidus in these models. In contrast, geochemists, applying trace element data to independently test the experimentally-based models, have concluded that residual (or fractionating) accessory phases may have an essential role in controlling the trace element (especially REE) distributions in magmas. Some recent experimental work provides data on the stability of potentially significant accessories such as sphene, rutile, apatite, zoisite and mica in basaltic compositions at elevated P and T. Sphene is stable to 1000°C with 60% melting of a hydrous tholeiite at 15 kbar. At higher pressure, rutile is the only Ti-rich accessory phase, and is present to at least 1000°C and high degrees of melting. Published REE data on sphene and rutile suggest that these phases may be important in controlling REE distribution in some magmas. For example, island are high-Mg, low-Ca-Ti tholeiites with low REE abundances and U-shaped patterns (Hickey and Frey, 1979) may reflect the role of sphene. In addition to rutile, similar close-packed Ti-rich accessory phases such as priderite, perovskite, crichtonite and loveringite may occur in mantle-derived magmas. These phases readily accommodate the REE but their possible role needs experimental confirmation. Apatite is recorded in hawaiite (1.16% P2Os) with 2% H2O added at 5–6 kbar and 1050°C within 30°C of the liquidus, but at present no other experimental data are available on its high P, T stability, although thermodynamic calculations indicate that F may increase its stability markedly. Apatite is well known in high-pressure inclusions and as a phenocryst phase in rocks of the alkaline and calc-alkaline series. Ilmenite is known as a near-liquidus phase in some mafic magmas at ∼5–10 kbar, but its stability decreases to near-solidus at 25–30 kbar. Zoisite occurs in hydrous mafic compositions at mantle pressures, but it is confined to temperatures < 780°C. Finally, mica has a wide temperature range of stability at mantle pressures, especially in potassic magmas, and phlogopitic mica is stable to ∼ 1040°C at 20–25 kbar in a hydrous, K-rich “tholeiite” (1.6% K2O)." @default.
• W1993936218 created "2016-06-24" @default.
• W1993936218 creator A5034378555 @default.
• W1993936218 date "1981-07-01" @default.
• W1993936218 modified "2023-09-24" @default.
• W1993936218 title "Experimental evidence for the role of accessory phases in magma genesis" @default.
• W1993936218 cites W1964358899 @default.
• W1993936218 cites W1965954144 @default.
• W1993936218 cites W1967538844 @default.
• W1993936218 cites W1970046654 @default.
• W1993936218 cites W1972177026 @default.
• W1993936218 cites W1975511457 @default.
• W1993936218 cites W1985957692 @default.
• W1993936218 cites W1986101536 @default.
• W1993936218 cites W1993955566 @default.
• W1993936218 cites W1994436211 @default.
• W1993936218 cites W1995193895 @default.
• W1993936218 cites W2002359875 @default.
• W1993936218 cites W2003504634 @default.
• W1993936218 cites W2003641336 @default.
• W1993936218 cites W2007681650 @default.
• W1993936218 cites W2010796399 @default.
• W1993936218 cites W2013697469 @default.
• W1993936218 cites W2014814915 @default.
• W1993936218 cites W2017793664 @default.
• W1993936218 cites W2021241473 @default.
• W1993936218 cites W2027429612 @default.
• W1993936218 cites W2028988936 @default.
• W1993936218 cites W2030628324 @default.
• W1993936218 cites W2037588390 @default.
• W1993936218 cites W2037865283 @default.
• W1993936218 cites W2038114925 @default.
• W1993936218 cites W2041436546 @default.
• W1993936218 cites W2044941940 @default.
• W1993936218 cites W2045684026 @default.
• W1993936218 cites W2047172800 @default.
• W1993936218 cites W2047406392 @default.
• W1993936218 cites W2049266290 @default.
• W1993936218 cites W2050989113 @default.
• W1993936218 cites W2052875168 @default.
• W1993936218 cites W2059417137 @default.
• W1993936218 cites W2060590900 @default.
• W1993936218 cites W2067203284 @default.
• W1993936218 cites W2070921831 @default.
• W1993936218 cites W2071765366 @default.
• W1993936218 cites W2074011594 @default.
• W1993936218 cites W2075305921 @default.
• W1993936218 cites W2075816964 @default.
• W1993936218 cites W2078882574 @default.
• W1993936218 cites W2080494759 @default.
• W1993936218 cites W2086442699 @default.
• W1993936218 cites W2088362600 @default.
• W1993936218 cites W2090450022 @default.
• W1993936218 cites W2091672848 @default.
• W1993936218 cites W2094212500 @default.
• W1993936218 cites W2094806518 @default.
• W1993936218 cites W2326779898 @default.
• W1993936218 cites W2330118337 @default.
• W1993936218 cites W2911725470 @default.
• W1993936218 cites W4243866455 @default.
• W1993936218 doi "https://doi.org/10.1016/0377-0273(81)90089-5" @default.
• W1993936218 hasPublicationYear "1981" @default.
• W1993936218 type Work @default.
• W1993936218 sameAs 1993936218 @default.
• W1993936218 citedByCount "79" @default.
• W1993936218 countsByYear W19939362182012 @default.
• W1993936218 countsByYear W19939362182013 @default.
• W1993936218 countsByYear W19939362182014 @default.
• W1993936218 countsByYear W19939362182015 @default.
• W1993936218 countsByYear W19939362182016 @default.
• W1993936218 countsByYear W19939362182017 @default.
• W1993936218 countsByYear W19939362182019 @default.
• W1993936218 countsByYear W19939362182022 @default.
• W1993936218 crossrefType "journal-article" @default.
• W1993936218 hasAuthorship W1993936218A5034378555 @default.
• W1993936218 hasConcept C127313418 @default.
• W1993936218 hasConcept C145653223 @default.
• W1993936218 hasConcept C151730666 @default.
• W1993936218 hasConcept C161509811 @default.
• W1993936218 hasConcept C17409809 @default.
• W1993936218 hasConcept C178790620 @default.
• W1993936218 hasConcept C185592680 @default.
• W1993936218 hasConcept C191897082 @default.
• W1993936218 hasConcept C192562407 @default.
• W1993936218 hasConcept C199289684 @default.
• W1993936218 hasConcept C23693375 @default.
• W1993936218 hasConcept C26687426 @default.
• W1993936218 hasConcept C2776212575 @default.
• W1993936218 hasConcept C2777640183 @default.
• W1993936218 hasConcept C2777746296 @default.
• W1993936218 hasConcept C2777889555 @default.
• W1993936218 hasConcept C2778571990 @default.
• W1993936218 hasConcept C2778849375 @default.
• W1993936218 hasConcept C2778998827 @default.
• W1993936218 hasConcept C2779181077 @default.
• W1993936218 hasConcept C2779870107 @default.
• W1993936218 hasConcept C2780026712 @default.
• W1993936218 hasConcept C2780364934 @default.

• next