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- W2104372622 startingPage "1365" @default.
- W2104372622 abstract "We present major and trace element concentrations and Sr–Nd–Hf–Pb isotope data for the c. 13–2 Ma Tertiary lavas from eastern Iceland. Our new geochemical results, together with published geological, geochronological, geochemical and geophysical data, are used to evaluate temporal changes in mantle sources contributing to the Tertiary Icelandic magmatism and the relative roles of these sources in magma productivity. The trace element and radiogenic isotopic compositions clearly distinguish three distinct end-member components in the Tertiary magmatism. Temporal variations in lava geochemistry can be attributed to changes in the relative contributions of these three end-member components to the erupted magmas and correlated with temporal variations in magma productivity. The extrusion of lavas with geochemically and isotopically enriched compositions was particularly pronounced at ∼13–12 and 8–7 Ma, coincident in time with higher magma productivity. However, the geochemical characteristics of the lavas are different during these two periods: the 13–12 Ma lavas have more radiogenic 176Hf/ 177Hf and less radiogenic 206Pb/ 204Pb than those erupted from 8 to 7 Ma. The eruption of relatively depleted lavas, at around 10 Ma and younger than 6·5 Ma, is coincident with lower magma productivity. The correlation between the composition and productivity of the Tertiary lavas from eastern Iceland is probably due to periodic changes in the involvement of the enriched end-member component, followed by a gradation to periods dominated by the signature of the depleted end-member component and lower magma productivity, at an approximate frequency of 5 Myr." @default.
- W2104372622 created "2016-06-24" @default.
- W2104372622 creator A5015489563 @default.
- W2104372622 creator A5029814244 @default.
- W2104372622 creator A5038326575 @default.
- W2104372622 creator A5083800147 @default.
- W2104372622 date "2008-05-25" @default.
- W2104372622 modified "2023-10-16" @default.
- W2104372622 title "Multiple Pulses of the Mantle Plume: Evidence from Tertiary Icelandic Lavas" @default.
- W2104372622 cites W1514616675 @default.
- W2104372622 cites W160247213 @default.
- W2104372622 cites W1613778031 @default.
- W2104372622 cites W170586049 @default.
- W2104372622 cites W1964197584 @default.
- W2104372622 cites W1969859799 @default.
- W2104372622 cites W1973012528 @default.
- W2104372622 cites W1973075034 @default.
- W2104372622 cites W1974463006 @default.
- W2104372622 cites W1975078291 @default.
- W2104372622 cites W1975270322 @default.
- W2104372622 cites W1975777283 @default.
- W2104372622 cites W1976156138 @default.
- W2104372622 cites W1977189996 @default.
- W2104372622 cites W1977457396 @default.
- W2104372622 cites W1977629865 @default.
- W2104372622 cites W1978129090 @default.
- W2104372622 cites W1980461742 @default.
- W2104372622 cites W1982678462 @default.
- W2104372622 cites W1990832360 @default.
- W2104372622 cites W1992736932 @default.
- W2104372622 cites W1993456991 @default.
- W2104372622 cites W1996186259 @default.
- W2104372622 cites W1998707404 @default.
- W2104372622 cites W2001303111 @default.
- W2104372622 cites W2002727193 @default.
- W2104372622 cites W2007429194 @default.
- W2104372622 cites W2009559810 @default.
- W2104372622 cites W2011070597 @default.
- W2104372622 cites W2011097477 @default.
- W2104372622 cites W2014573851 @default.
- W2104372622 cites W2017499090 @default.
- W2104372622 cites W2018310663 @default.
- W2104372622 cites W2020222457 @default.
- W2104372622 cites W2021987309 @default.
- W2104372622 cites W2032236764 @default.
- W2104372622 cites W2032821304 @default.
- W2104372622 cites W2034981807 @default.
- W2104372622 cites W2035597521 @default.
- W2104372622 cites W2035924154 @default.
- W2104372622 cites W2039064764 @default.
- W2104372622 cites W2042423268 @default.
- W2104372622 cites W2044592077 @default.
- W2104372622 cites W2047567126 @default.
- W2104372622 cites W2049708615 @default.
- W2104372622 cites W2050980434 @default.
- W2104372622 cites W2054661008 @default.
- W2104372622 cites W2055025778 @default.
- W2104372622 cites W2055112629 @default.
- W2104372622 cites W2055859870 @default.
- W2104372622 cites W2056546408 @default.
- W2104372622 cites W2059998170 @default.
- W2104372622 cites W2062762441 @default.
- W2104372622 cites W2063053631 @default.
- W2104372622 cites W2065004370 @default.
- W2104372622 cites W2069491398 @default.
- W2104372622 cites W2072206013 @default.
- W2104372622 cites W2075226947 @default.
- W2104372622 cites W2077766689 @default.
- W2104372622 cites W2079992794 @default.
- W2104372622 cites W2080229244 @default.
- W2104372622 cites W2080234677 @default.
- W2104372622 cites W2080609618 @default.
- W2104372622 cites W2081315268 @default.
- W2104372622 cites W2089409918 @default.
- W2104372622 cites W2092323272 @default.
- W2104372622 cites W2093983309 @default.
- W2104372622 cites W2095337342 @default.
- W2104372622 cites W2103085975 @default.
- W2104372622 cites W2116499843 @default.
- W2104372622 cites W2118208826 @default.
- W2104372622 cites W2119896854 @default.
- W2104372622 cites W2120284986 @default.
- W2104372622 cites W2125654971 @default.
- W2104372622 cites W2130280015 @default.
- W2104372622 cites W2132219187 @default.
- W2104372622 cites W2137532060 @default.
- W2104372622 cites W2139711100 @default.
- W2104372622 cites W2140570664 @default.
- W2104372622 cites W2147677081 @default.
- W2104372622 cites W2149743365 @default.
- W2104372622 cites W2152797950 @default.
- W2104372622 cites W2153846210 @default.
- W2104372622 cites W2156985625 @default.
- W2104372622 cites W2160884485 @default.
- W2104372622 cites W2161119495 @default.
- W2104372622 cites W2320760170 @default.
- W2104372622 cites W2323439397 @default.
- W2104372622 cites W2327098988 @default.