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• W2887285417 endingPage "579" @default.
• W2887285417 startingPage "563" @default.
• W2887285417 abstract "The extent of structural disorder in multi-component basaltic (mafic) melts with varying compositions (particularly, Mg content) and the formation depth has not been well understood. Here, we explore the structure of Mg-rich silicate glasses including Na-Mg silicate glasses, NaO-MgO-Al2O3-SiO2 (NMAS) glasses in a nepheline (NaAlSiO4)-forsterite (Mg2SiO4)-quartz (SiO2) eutectic composition, and synthetic equivalents of basaltic glasses generated by partial melting of upper mantle peridotite (KLB-1) in a multi-component CaO-MgO-Na2O-K2O-Al2O3-TiO2-SiO2 system using high-resolution solid-state nuclear magnetic resonance (NMR). The 2-dimensional (2D) 17O 3Q (triple quantum) magic angle spinning (MAS) NMR spectra for those multi-component glasses revealed the nature of diverse aspects of structural disorder. Non-bridging oxygens (NBOs) apparently prefer proximity toward Ca2+ and Mg2+, whereas bridging oxygens (BOs) prefer to be near Na+, confirming a stronger interaction between NBOs and high field-strength cations in multi-component basaltic melts. The changes of oxygen configurations with increasing Mg contents provide implications for the structural evolution of basaltic melts with varying formation depth. Thus, while the pressure effect remains to be explored, considering the changes in melt composition alone, the NBO fraction of the KLB-1 basaltic melts increases with increasing melting depth of KLB-1 peridotite. The 27Al 3QMAS NMR spectra for multi-component KLB-1 basaltic glasses reveal non-negligible fraction of [5]Al that increases with increasing Mg content. The fraction of [5]Al in natural basaltic magma is expected to increase with melting depth of KLB-1 peridotite. The 27Al NMR quadrupolar coupling constant for [4]Al in multi-component silicate glasses systematically increases with Mg content, indicating an increase of the topological distortion (variation of bond angle and length distribution and network distortion) around [4]Al in the basaltic glasses. The observed increase in the extent of structural disorder in basaltic melts with Mg content may increase the overall configurational and topological entropy. While further confirmation is necessary, the changes in melt polymerization observed from 17O NMR spectra and network disorder around Al imply the decrease in melt viscosity in the complex silicate melts with varying formation depth of KLB-1 basaltic melts." @default.
• W2887285417 created "2018-08-22" @default.
• W2887285417 creator A5014799989 @default.
• W2887285417 creator A5050733578 @default.
• W2887285417 date "2018-10-01" @default.
• W2887285417 modified "2023-10-18" @default.
• W2887285417 title "Probing the structure of Fe-free model basaltic glasses: A view from a solid-state 27Al and 17O NMR study of Na-Mg silicate glasses, Na2O-MgO-Al2O3-SiO2 glasses, and synthetic Fe-free KLB-1 basaltic glasses" @default.
• W2887285417 cites W1534749586 @default.
• W2887285417 cites W1568264101 @default.
• W2887285417 cites W1819823171 @default.
• W2887285417 cites W1821593081 @default.
• W2887285417 cites W1839518374 @default.
• W2887285417 cites W1933288272 @default.
• W2887285417 cites W1963869413 @default.
• W2887285417 cites W1964768225 @default.
• W2887285417 cites W1965318276 @default.
• W2887285417 cites W1965424804 @default.
• W2887285417 cites W1965806071 @default.
• W2887285417 cites W1967181073 @default.
• W2887285417 cites W1967235842 @default.
• W2887285417 cites W1967490375 @default.
• W2887285417 cites W1970758245 @default.
• W2887285417 cites W1971635247 @default.
• W2887285417 cites W1973935328 @default.
• W2887285417 cites W1976257460 @default.
• W2887285417 cites W1978525604 @default.
• W2887285417 cites W1978978739 @default.
• W2887285417 cites W1981018123 @default.
• W2887285417 cites W1988724683 @default.
• W2887285417 cites W1989822221 @default.
• W2887285417 cites W1994034722 @default.
• W2887285417 cites W1995072131 @default.
• W2887285417 cites W1995267584 @default.
• W2887285417 cites W1997840439 @default.
• W2887285417 cites W1998735859 @default.
• W2887285417 cites W2000825767 @default.
• W2887285417 cites W2003626452 @default.
• W2887285417 cites W2004889876 @default.
• W2887285417 cites W2005358758 @default.
• W2887285417 cites W2008782416 @default.
• W2887285417 cites W2010074619 @default.
• W2887285417 cites W2011607179 @default.
• W2887285417 cites W2014962763 @default.
• W2887285417 cites W2016117429 @default.
• W2887285417 cites W2017180125 @default.
• W2887285417 cites W2019676935 @default.
• W2887285417 cites W2029591712 @default.
• W2887285417 cites W2034212782 @default.
• W2887285417 cites W2034402580 @default.
• W2887285417 cites W2038502628 @default.
• W2887285417 cites W2042971561 @default.
• W2887285417 cites W2043370875 @default.
• W2887285417 cites W2046270665 @default.
• W2887285417 cites W2049079474 @default.
• W2887285417 cites W2049165789 @default.
• W2887285417 cites W2052473341 @default.
• W2887285417 cites W2057070086 @default.
• W2887285417 cites W2059307306 @default.
• W2887285417 cites W2060655431 @default.
• W2887285417 cites W2061048095 @default.
• W2887285417 cites W2064695038 @default.
• W2887285417 cites W2064820929 @default.
• W2887285417 cites W2065917578 @default.
• W2887285417 cites W2066242884 @default.
• W2887285417 cites W2071237165 @default.
• W2887285417 cites W2072199832 @default.
• W2887285417 cites W2077279672 @default.
• W2887285417 cites W2081086654 @default.
• W2887285417 cites W2082571176 @default.
• W2887285417 cites W2085285699 @default.
• W2887285417 cites W2087782031 @default.
• W2887285417 cites W2088404173 @default.
• W2887285417 cites W2092621156 @default.
• W2887285417 cites W2092845078 @default.
• W2887285417 cites W2094291429 @default.
• W2887285417 cites W2095440947 @default.
• W2887285417 cites W2109170608 @default.
• W2887285417 cites W2117856007 @default.
• W2887285417 cites W2121728572 @default.
• W2887285417 cites W2130264513 @default.
• W2887285417 cites W2136068317 @default.
• W2887285417 cites W2138874008 @default.
• W2887285417 cites W2140916544 @default.
• W2887285417 cites W2155311025 @default.
• W2887285417 cites W2163156840 @default.
• W2887285417 cites W2163822434 @default.
• W2887285417 cites W2244749032 @default.
• W2887285417 cites W2254190482 @default.
• W2887285417 cites W2265615429 @default.
• W2887285417 cites W2283278654 @default.
• W2887285417 cites W2289146688 @default.
• W2887285417 cites W2317519954 @default.
• W2887285417 cites W2328923754 @default.
• W2887285417 cites W2329149598 @default.
• W2887285417 cites W2333414322 @default.
• W2887285417 cites W2415466656 @default.
• W2887285417 cites W2473098298 @default.
• W2887285417 cites W2511382433 @default.

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