Source lithology and crustal assimilation recorded in low δ18O olivine from Okinawa Trough, back-arc basin
Sign Up to like & getrecommendations! Published in 2020 at "Lithos"
DOI: 10.1016/j.lithos.2020.105444
Abstract: Abstract Low δ18O magmas (with δ18O values of 78, with element compositions and δ18O values (4.87 ± 0.38‰, 2SD) to similar those of the olivine in basalts. The other group of olivines exhibits Fo 6‰), indicating that… read more here.
Keywords: low 18o; back arc; source lithology; olivine ... See more keywords
Petrogenesis of the early Paleoproterozoic low-δ18O potassic granites in the southern NCC and its possible implications for no confluence of glaciations and magmatic shutdown at ca. 2.3 Ga
Sign Up to like & getrecommendations! Published in 2021 at "Precambrian Research"
DOI: 10.1016/j.precamres.2021.106258
Abstract: Abstract The interval of 2.45 to 2.20 Ga has previously been interpreted to contain a plate tectonic shutdown, but newly discovered magmatism of this stage is filling in the early Paleoproterozoic magmatic gap. However, the crust… read more here.
Keywords: paleoproterozoic; confluence; early paleoproterozoic; southern ncc ... See more keywords
Neoproterozoic Low‐δ18O Zircons Revisited: Implications for Rodinia Configuration
Sign Up to like & getrecommendations! Published in 2019 at "Geophysical Research Letters"
DOI: 10.1029/2018gl081117
Abstract: Neoproterozoic magmatic rocks and detrital zircons with low‐δ18O values were frequently identified in the Yangtze Block, Madagascar, and India. Here we first report Neoproterozoic low‐δ18O zircons from the central part of the Cathaysia Block in… read more here.
Keywords: 18o zircons; zircons revisited; low 18o; revisited implications ... See more keywords
Experimental Melting of Hydrothermally Altered Rocks: Constraints for the Generation of Low-δ18O Rhyolites in the Central Snake River Plain
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Petrology"
DOI: 10.1093/petrology/egz056
Abstract: Quantifying the relative contributions of crustal versus mantle-derived melt is important for understanding how silicic magmas are generated, stored, and interact with country rock in trans-crustal magmatic systems. Low-δ18O rhyolitic ignimbrites and lavas erupted during… read more here.
Keywords: low 18o; snake river; central snake; 18o rhyolites ... See more keywords