2019
DOI: 10.1016/j.gca.2019.04.001
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A high carbon content of the Hawaiian mantle from olivine-hosted melt inclusions

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Cited by 69 publications
(144 citation statements)
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“…An alternative, but complementary, approach to constraining CO 2 recycling efficiency is to estimate the amount of carbon within recycled mantle domains where they are sampled at ocean islands. CO 2 -noble gas systematics of fluid inclusions in material erupted in Hawaii and La Réunion Island indicate their mantle sources are carbon rich (Trull et al, 1993;Boudoire et al, 2018), which is further supported by models that couple CO 2 emission rates with magma supply rates at Hawaii (Anderson and Poland, 2017) and high CO 2 contents of primitive melts (Tucker et al, 2019). However, both Hawaii and La Réunion are underlain by mantle plumes transporting primordial (high 3 He/ 4 He) mantle, which may contain high concentrations of carbon (Miller et al, 2019).…”
Section: Introductionmentioning
confidence: 73%
See 1 more Smart Citation
“…An alternative, but complementary, approach to constraining CO 2 recycling efficiency is to estimate the amount of carbon within recycled mantle domains where they are sampled at ocean islands. CO 2 -noble gas systematics of fluid inclusions in material erupted in Hawaii and La Réunion Island indicate their mantle sources are carbon rich (Trull et al, 1993;Boudoire et al, 2018), which is further supported by models that couple CO 2 emission rates with magma supply rates at Hawaii (Anderson and Poland, 2017) and high CO 2 contents of primitive melts (Tucker et al, 2019). However, both Hawaii and La Réunion are underlain by mantle plumes transporting primordial (high 3 He/ 4 He) mantle, which may contain high concentrations of carbon (Miller et al, 2019).…”
Section: Introductionmentioning
confidence: 73%
“…Ratios of CO 2 and trace-element concentrations One process affecting carbon that it may be possible to successfully control for is melting. Ratios of CO 2 to Ba or Nb concentrations have been used to achieve this (Saal et al, 2002;Le Voyer et al, 2017;Hauri et al, 2018;Michael and Graham, 2015;Shimizu et al, 2016;Tucker et al, 2019;Shimizu et al, 2019;Miller et al, 2019), since CO 2 , Ba, and Nb partition similarly during mantle melting (Saal et al, 2002;Rosenthal et al, 2015). Given this similarity in partitioning behaviour, it should be expected that pre-degassing magmatic values of CO 2 /Ba and CO 2 /Nb will not be fractionated from their mantle sources; the exception to this being that even small differences between the partition coefficients can cause large variations in the CO 2 /Ba and CO 2 /Nb of instantaneous fractional melts extracted from a previously depleted source (Rosenthal et al, 2015).…”
Section: Estimating Mantle Carbonmentioning
confidence: 99%
“…Estimates of the carbon content of the subcontinental mantle lithosphere (SCLM) range from average concentration of <700 ppm C to several weight percent in the lowermost SCLM (Foley and Fischer, 2017;Lee et al, 2019), which is one to four orders of magnitude higher than the C contents of the convecting mantle (Dasgupta and Hirschmann, 2010;Tucker et al, 2019).…”
Section: The Evolution Of Carbon In the Mantle Lithosphere On Geologimentioning
confidence: 99%
“…Для учета содержания СО2 в газовом пузыре и оценки общего содержаний CO2 внутри расплавных включений используются три метода: (1) метод расчета состава и количества равновесного флюида [напр., Steele-MacInnis et al, 2011;Aster et al, 2016;Moore et al, 2018;Tucker et al, 2019], (2) экспериментальная гомогенизация включений [напр., Mironov et al, 2015; и (3) массбалансовый расчет на основе измерения пропорций стекла и газовой фазы и содержания в них СО2 [напр., Наумов и др., 2006;Steele-MacInnis et al, 2011;Hartley et al, 2014;Moore et al, 2015;Aster et al, 2016;Robidoux et al, 2018;Taracsak et al, 2019 и др.]. Для определения содержания СО2 в газовой фазе, обычно представленной малоплотным флюидом, используют метод Рамановской спектроскопии [напр., Steele-MacInnis et al, 2011;Hartley et al, 2014;Moore et al, 2015 и др.…”
Section: ]unclassified
“…4а, табл.1). Почти идентичные к этим значениям (когда РВ -сфера) дает способ, когда толщина РВ принимается равной среднему значению между длиной и шириной (z=x/2+y/2) [напр., Tucker et al, 2019] (табл.1). Сравнение между собой объемных данных, полученных для РВ с измерением толщины включений оптически (z1) и в ортогональных сечениях z2показывает, что они хорошо соответствуют друг другу и их значения находятся в пределах погрешности оценки относительных объемов газовых пузырей РВ (рис.…”
Section: ]unclassified