Matches in SemOpenAlex for { <https://semopenalex.org/work/W3011077890> ?p ?o ?g. }
- W3011077890 endingPage "116182" @default.
- W3011077890 startingPage "116182" @default.
- W3011077890 abstract "Upwelling plumes from the deep mantle have an impact on the Earth's surface for tens to hundreds of millions of years. During the lifetime of a mantle plume, periodic fluctuations in its composition and temperature have the potential to generate changes in the nature and volume of surface volcanism. We constrain the spatial and temporal scale of compositional changes in a plume using high-resolution Pb isotopes, which identify chemical pulses emerging from the Canary Islands hotspot over the last ∼15 million years (Myr). Surface volcanism spanning ∼ 400 km along the island chain changes composition systematically and synchronously, representing a replenishment of the plume head by a distinct mantle flavour on timescales of 3-5 Myr. These low-frequency compositional changes are also recorded by individual volcanoes, and comprise a sequence of closely-spaced isotopic trajectories. Each trajectory is maintained for ∼1 Myr and is preceded and followed by ∼0.3 Myr transitions to magmas with distinct isotope ratios. Relatively sharp transitions between periods of sustained isotopic stability require discrete yet coherent heterogeneities rising at speeds of ∼100-200 km Myr−1 and extending for ∼150 km vertically in the conduit. The long-term synchronous changes require larger scale isotopic domains extending ∼600 km vertically through in the plume stem. These observations demonstrate that plumes can chemically “pulse” over short and long-timescales reflecting the characteristics and recycling history of the deep mantle." @default.
- W3011077890 created "2020-03-23" @default.
- W3011077890 creator A5034486433 @default.
- W3011077890 creator A5035530739 @default.
- W3011077890 creator A5044639730 @default.
- W3011077890 creator A5049115819 @default.
- W3011077890 creator A5059717328 @default.
- W3011077890 creator A5075584991 @default.
- W3011077890 date "2020-05-01" @default.
- W3011077890 modified "2023-10-02" @default.
- W3011077890 title "Dynamics of a chemically pulsing mantle plume" @default.
- W3011077890 cites W1507573241 @default.
- W3011077890 cites W1520843566 @default.
- W3011077890 cites W1627328041 @default.
- W3011077890 cites W1629221340 @default.
- W3011077890 cites W1656874552 @default.
- W3011077890 cites W1768224833 @default.
- W3011077890 cites W1823188568 @default.
- W3011077890 cites W1828329906 @default.
- W3011077890 cites W1853414901 @default.
- W3011077890 cites W1854096395 @default.
- W3011077890 cites W1929808251 @default.
- W3011077890 cites W1965569280 @default.
- W3011077890 cites W1967019208 @default.
- W3011077890 cites W1968208484 @default.
- W3011077890 cites W1973591418 @default.
- W3011077890 cites W1981965503 @default.
- W3011077890 cites W1983000427 @default.
- W3011077890 cites W1985806239 @default.
- W3011077890 cites W1988224659 @default.
- W3011077890 cites W1992891991 @default.
- W3011077890 cites W2002583032 @default.
- W3011077890 cites W2006136463 @default.
- W3011077890 cites W2007082852 @default.
- W3011077890 cites W2008899238 @default.
- W3011077890 cites W2011497196 @default.
- W3011077890 cites W2011607179 @default.
- W3011077890 cites W2013298370 @default.
- W3011077890 cites W2020792251 @default.
- W3011077890 cites W2023337601 @default.
- W3011077890 cites W2023456682 @default.
- W3011077890 cites W2029330897 @default.
- W3011077890 cites W2030128464 @default.
- W3011077890 cites W2038296817 @default.
- W3011077890 cites W2038979071 @default.
- W3011077890 cites W2039071967 @default.
- W3011077890 cites W2043718615 @default.
- W3011077890 cites W2045922919 @default.
- W3011077890 cites W2050700867 @default.
- W3011077890 cites W2052620617 @default.
- W3011077890 cites W2055338369 @default.
- W3011077890 cites W2055768450 @default.
- W3011077890 cites W2056403167 @default.
- W3011077890 cites W2057986212 @default.
- W3011077890 cites W2061351128 @default.
- W3011077890 cites W2063477543 @default.
- W3011077890 cites W2063726143 @default.
- W3011077890 cites W2064958765 @default.
- W3011077890 cites W2066355721 @default.
- W3011077890 cites W2074777137 @default.
- W3011077890 cites W2080748085 @default.
- W3011077890 cites W2084181961 @default.
- W3011077890 cites W2086540936 @default.
- W3011077890 cites W2087348707 @default.
- W3011077890 cites W2092811366 @default.
- W3011077890 cites W2098813846 @default.
- W3011077890 cites W2104372622 @default.
- W3011077890 cites W2105919318 @default.
- W3011077890 cites W2111577014 @default.
- W3011077890 cites W2114024821 @default.
- W3011077890 cites W2122703690 @default.
- W3011077890 cites W2123904011 @default.
- W3011077890 cites W2126357565 @default.
- W3011077890 cites W2127876404 @default.
- W3011077890 cites W2131905659 @default.
- W3011077890 cites W2141858059 @default.
- W3011077890 cites W2143617201 @default.
- W3011077890 cites W2147703958 @default.
- W3011077890 cites W2151041036 @default.
- W3011077890 cites W2154725258 @default.
- W3011077890 cites W2155608218 @default.
- W3011077890 cites W2156514544 @default.
- W3011077890 cites W2160265793 @default.
- W3011077890 cites W2271422614 @default.
- W3011077890 cites W2559932581 @default.
- W3011077890 cites W2611537658 @default.
- W3011077890 cites W2885892246 @default.
- W3011077890 cites W4214911971 @default.
- W3011077890 cites W4253600674 @default.
- W3011077890 doi "https://doi.org/10.1016/j.epsl.2020.116182" @default.
- W3011077890 hasPublicationYear "2020" @default.
- W3011077890 type Work @default.
- W3011077890 sameAs 3011077890 @default.
- W3011077890 citedByCount "11" @default.
- W3011077890 countsByYear W30110778902021 @default.
- W3011077890 countsByYear W30110778902022 @default.
- W3011077890 countsByYear W30110778902023 @default.
- W3011077890 crossrefType "journal-article" @default.