FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2903092384> ?p ?o ?g. }

• W2903092384 endingPage "471" @default.
• W2903092384 startingPage "437" @default.
• W2903092384 abstract "The Red Sea rifting nucleated within the Neoproterozoic Arabian-Nubian shield, which formed during the Pan-African orogeny over a time period of about 300 million years. The Red Sea rifting started about at 30 Ma and was assisted by much diffused magmatism that lasted until recent times. The majority of magmatic rocks consist of basalts that constitute volcanic plateaux (harrats), which represent one of the largest Cenozoic volcanic provinces in the world. Volcanic rocks are distributed all along the Arabian plate margin of the Red Sea, from Yemen to Jordan. Some of the oldest magmatic rocks are acidic in composition, especially along the southern part of the Arabian margin. In this chapter microstructure and geochemistry of acidic, intermediate, and basic dykes sampled along the Arabian margin are described. Acidic dykes consist of granitoids and porphyritic rhyolites. Intermediate and basic dykes consist of andesite and basanite/basalt, respectively. Granitoid dykes show equal-granular coarse-grained texture and mostly consist of euhedral crystals. Other than local displays of crystal-plastic deformation in quartz, these dykes have primary magmatic textures. Dykes consisting of rhyolites contain euhedral K-feldspar phenocrysts with frequent perthitic intergrowth of albite. The rock matrix consists of quartz, K-feldspar, and albite. Basanite/basaltic dykes consist of plagioclase, pyroxene, and amphibole phenocrysts. Plagioclase is also abundant in the groundmass where glass is also preserved. Andesite dykes are characterised by a pervasive alteration that in some instances prevents the identification of original phenocrysts. Where identifiable, phenocrysts consist of plagioclase, amphibole, and pyroxene. Locally, in the groundmass interstitial quartz shows crystal-plastic deformation. Fluidal magmatic structures are recorded locally in basanitic and basaltic dykes and only weakly in rhyolitic dykes. The fine-grained texture of the rock groundmass and vesicular structures indicate that dyke emplacement is quite shallow (hypabyssal conditions). However, the Al-content in amphibole phenocrysts of basanite/basalt dykes is consistent with phenocryst crystallisation depths of 15–20 km. The first U-Pb tests on granitoids reveal that they contain zircon grains from Cryogenian to Ediacaran (middle to late Neoproterozoic) age. Geochemical results indicate that basanite/basaltic dykes are compatible with a divergent environment such as the Red Sea rifting, whereas andesite dykes are compatible with a convergent setting. The rhyolitic dykes are interpreted as related to the Red Sea rifting as they show geochemical signatures compatible with divergent tectonics and are from a region where rhyolitic dykes were dated around 20 Ma." @default.
• W2903092384 created "2018-12-11" @default.
• W2903092384 creator A5000084411 @default.
• W2903092384 creator A5018152171 @default.
• W2903092384 creator A5045464637 @default.
• W2903092384 creator A5086197344 @default.
• W2903092384 date "2018-12-05" @default.
• W2903092384 modified "2023-10-18" @default.
• W2903092384 title "Microstructure and Geochemistry of Magmatic Dykes from the Arabian Margin, Red Sea" @default.
• W2903092384 cites W1128443395 @default.
• W2903092384 cites W121832871 @default.
• W2903092384 cites W1482015549 @default.
• W2903092384 cites W1491411679 @default.
• W2903092384 cites W1520939493 @default.
• W2903092384 cites W1523307635 @default.
• W2903092384 cites W1565885424 @default.
• W2903092384 cites W1576516474 @default.
• W2903092384 cites W1587864144 @default.
• W2903092384 cites W1598470871 @default.
• W2903092384 cites W1660410253 @default.
• W2903092384 cites W1948796068 @default.
• W2903092384 cites W1966430488 @default.
• W2903092384 cites W1967019161 @default.
• W2903092384 cites W1968135991 @default.
• W2903092384 cites W1968681946 @default.
• W2903092384 cites W1971498933 @default.
• W2903092384 cites W1972516371 @default.
• W2903092384 cites W1974242082 @default.
• W2903092384 cites W1974499954 @default.
• W2903092384 cites W1974810094 @default.
• W2903092384 cites W1975351330 @default.
• W2903092384 cites W1977011993 @default.
• W2903092384 cites W1981054075 @default.
• W2903092384 cites W1981961356 @default.
• W2903092384 cites W1982312699 @default.
• W2903092384 cites W1982385055 @default.
• W2903092384 cites W1982712732 @default.
• W2903092384 cites W1986310957 @default.
• W2903092384 cites W1987030227 @default.
• W2903092384 cites W1992477749 @default.
• W2903092384 cites W1993372393 @default.
• W2903092384 cites W1996305879 @default.
• W2903092384 cites W1999448338 @default.
• W2903092384 cites W2001555409 @default.
• W2903092384 cites W2001636832 @default.
• W2903092384 cites W2002898265 @default.
• W2903092384 cites W2003123386 @default.
• W2903092384 cites W2006254584 @default.
• W2903092384 cites W2010741958 @default.
• W2903092384 cites W2011145781 @default.
• W2903092384 cites W2012770129 @default.
• W2903092384 cites W2018215270 @default.
• W2903092384 cites W2018450940 @default.
• W2903092384 cites W2020973699 @default.
• W2903092384 cites W2021325645 @default.
• W2903092384 cites W2021987309 @default.
• W2903092384 cites W2022061975 @default.
• W2903092384 cites W2024192181 @default.
• W2903092384 cites W2024980606 @default.
• W2903092384 cites W2025055077 @default.
• W2903092384 cites W2025841258 @default.
• W2903092384 cites W2028324772 @default.
• W2903092384 cites W2028598151 @default.
• W2903092384 cites W2029769457 @default.
• W2903092384 cites W2032905075 @default.
• W2903092384 cites W2037889246 @default.
• W2903092384 cites W2039438134 @default.
• W2903092384 cites W2041448778 @default.
• W2903092384 cites W2046904619 @default.
• W2903092384 cites W2050752751 @default.
• W2903092384 cites W2053570782 @default.
• W2903092384 cites W2054000349 @default.
• W2903092384 cites W2055438324 @default.
• W2903092384 cites W2055980863 @default.
• W2903092384 cites W2057248218 @default.
• W2903092384 cites W2060547840 @default.
• W2903092384 cites W2061255597 @default.
• W2903092384 cites W2063207326 @default.
• W2903092384 cites W2064612127 @default.
• W2903092384 cites W2069684629 @default.
• W2903092384 cites W2077316885 @default.
• W2903092384 cites W2079854701 @default.
• W2903092384 cites W2081928884 @default.
• W2903092384 cites W2082645751 @default.
• W2903092384 cites W2084527765 @default.
• W2903092384 cites W2085527334 @default.
• W2903092384 cites W2087556095 @default.
• W2903092384 cites W2088328212 @default.
• W2903092384 cites W2090416219 @default.
• W2903092384 cites W2091049975 @default.
• W2903092384 cites W2091899618 @default.
• W2903092384 cites W2094886494 @default.
• W2903092384 cites W2096282243 @default.
• W2903092384 cites W2096999349 @default.
• W2903092384 cites W2100979625 @default.
• W2903092384 cites W2102265562 @default.
• W2903092384 cites W2104417526 @default.
• W2903092384 cites W2106502341 @default.

• next