Matches in SemOpenAlex for { <https://semopenalex.org/work/W2076686407> ?p ?o ?g. }
- W2076686407 endingPage "230" @default.
- W2076686407 startingPage "222" @default.
- W2076686407 abstract "Silica alteration zones and cherts are a conspicuous feature of Archaean greenstone belts worldwide and provide evidence of extensive mobilisation of silica in the marine environment of the early Earth. In order to understand the process(es) of silicification we measured the silicon and oxygen isotope composition of sections of variably silicified basalts and overlying bedded cherts from the Theespruit, Hooggenoeg and Kromberg Formations of the Barberton Greenstone Belt, South Africa. The δ30Si and δ18O values of bulk rock increase with increasing amount of silicification from unsilicified basalts (−0.64‰ < δ30Si < −0.01‰ and + 8.6‰ < δ18O < + 11.9‰) to silicified basalts (δ30Si and δ18O values as high as + 0.81‰ and + 15.6‰, respectively). Cherts generally have positive isotope ratios (+ 0.21‰ < δ30Si < + 1.05‰ and + 10.9 < δ18O < + 17.1), except two cherts, which have negative δ30Si values, but high δ18O (up to + 19.5‰). The pronounced positive correlations between δ30Si, δ18O and SiO2 imply that the isotope variation is driven by the silicification process which coevally introduced both 18O and 30Si into the basalts. The oxygen isotope variation in the basalts from about 8.6‰ to 15.6‰ is likely to represent temperature-dependent isotope fractionation during alteration. Our proposed model for the observed silicon isotope variation relies on a temperature-controlled basalt dissolution vs. silica deposition process." @default.
- W2076686407 created "2016-06-24" @default.
- W2076686407 creator A5013418031 @default.
- W2076686407 creator A5013690079 @default.
- W2076686407 creator A5014031413 @default.
- W2076686407 creator A5014506063 @default.
- W2076686407 creator A5015162425 @default.
- W2076686407 creator A5065785600 @default.
- W2076686407 creator A5081746822 @default.
- W2076686407 date "2011-01-01" @default.
- W2076686407 modified "2023-10-09" @default.
- W2076686407 title "Coupled silicon–oxygen isotope fractionation traces Archaean silicification" @default.
- W2076686407 cites W1965960661 @default.
- W2076686407 cites W1971008779 @default.
- W2076686407 cites W1992599299 @default.
- W2076686407 cites W1992933657 @default.
- W2076686407 cites W1994358078 @default.
- W2076686407 cites W1999814102 @default.
- W2076686407 cites W2006517856 @default.
- W2076686407 cites W2007774401 @default.
- W2076686407 cites W2009962074 @default.
- W2076686407 cites W2012494839 @default.
- W2076686407 cites W2012986417 @default.
- W2076686407 cites W2015250268 @default.
- W2076686407 cites W2017934677 @default.
- W2076686407 cites W2018006495 @default.
- W2076686407 cites W2023168726 @default.
- W2076686407 cites W2026264570 @default.
- W2076686407 cites W2031100729 @default.
- W2076686407 cites W2034201600 @default.
- W2076686407 cites W2041885277 @default.
- W2076686407 cites W2048033628 @default.
- W2076686407 cites W2048568469 @default.
- W2076686407 cites W2054402757 @default.
- W2076686407 cites W2055492870 @default.
- W2076686407 cites W2055592891 @default.
- W2076686407 cites W2055728552 @default.
- W2076686407 cites W2055853410 @default.
- W2076686407 cites W2056891847 @default.
- W2076686407 cites W2059398718 @default.
- W2076686407 cites W2059946437 @default.
- W2076686407 cites W2061887884 @default.
- W2076686407 cites W2066428774 @default.
- W2076686407 cites W2075501732 @default.
- W2076686407 cites W2078817169 @default.
- W2076686407 cites W2079243389 @default.
- W2076686407 cites W2080767331 @default.
- W2076686407 cites W2081993348 @default.
- W2076686407 cites W2085204028 @default.
- W2076686407 cites W2085869834 @default.
- W2076686407 cites W2086859942 @default.
- W2076686407 cites W2090757504 @default.
- W2076686407 cites W2091345565 @default.
- W2076686407 cites W2094951791 @default.
- W2076686407 cites W2097625820 @default.
- W2076686407 cites W2098120714 @default.
- W2076686407 cites W2102967962 @default.
- W2076686407 cites W2105107520 @default.
- W2076686407 cites W2111325858 @default.
- W2076686407 cites W2120777708 @default.
- W2076686407 cites W2125489927 @default.
- W2076686407 cites W2128031863 @default.
- W2076686407 cites W2128587143 @default.
- W2076686407 cites W2140180282 @default.
- W2076686407 cites W2143045284 @default.
- W2076686407 cites W2147817273 @default.
- W2076686407 cites W2153241230 @default.
- W2076686407 cites W2163006245 @default.
- W2076686407 cites W4239122863 @default.
- W2076686407 doi "https://doi.org/10.1016/j.epsl.2010.11.002" @default.
- W2076686407 hasPublicationYear "2011" @default.
- W2076686407 type Work @default.
- W2076686407 sameAs 2076686407 @default.
- W2076686407 citedByCount "65" @default.
- W2076686407 countsByYear W20766864072012 @default.
- W2076686407 countsByYear W20766864072013 @default.
- W2076686407 countsByYear W20766864072014 @default.
- W2076686407 countsByYear W20766864072015 @default.
- W2076686407 countsByYear W20766864072016 @default.
- W2076686407 countsByYear W20766864072017 @default.
- W2076686407 countsByYear W20766864072018 @default.
- W2076686407 countsByYear W20766864072019 @default.
- W2076686407 countsByYear W20766864072020 @default.
- W2076686407 countsByYear W20766864072021 @default.
- W2076686407 countsByYear W20766864072022 @default.
- W2076686407 countsByYear W20766864072023 @default.
- W2076686407 crossrefType "journal-article" @default.
- W2076686407 hasAuthorship W2076686407A5013418031 @default.
- W2076686407 hasAuthorship W2076686407A5013690079 @default.
- W2076686407 hasAuthorship W2076686407A5014031413 @default.
- W2076686407 hasAuthorship W2076686407A5014506063 @default.
- W2076686407 hasAuthorship W2076686407A5015162425 @default.
- W2076686407 hasAuthorship W2076686407A5065785600 @default.
- W2076686407 hasAuthorship W2076686407A5081746822 @default.
- W2076686407 hasConcept C121332964 @default.
- W2076686407 hasConcept C127313418 @default.
- W2076686407 hasConcept C149347711 @default.
- W2076686407 hasConcept C161509811 @default.