GSTDTAP  > 地球科学
DOI10.1126/science.aax5293
Primordial and recycled helium isotope signatures in the mantle transition zone
Timmerman, S.1,6; Honda, M.1; Burnham, A. D.1; Amelin, Y.1; Woodland, S.2; Pearson, D. G.2; Jaques, A. L.1; Le Losq, C.1; Bennett, V. C.1; Bulanova, G. P.3; Smith, C. B.3; Harris, J. W.4; Tohver, E.5
2019-08-16
发表期刊SCIENCE
ISSN0036-8075
EISSN1095-9203
出版年2019
卷号365期号:6454页码:692-+
文章类型Article
语种英语
国家Australia; Canada; England; Scotland; Brazil; Germany
英文摘要

Isotope compositions of basalts provide information about the chemical reservoirs in Earth's interior and play a critical role in defining models of Earth's structure. However, the helium isotope signature of the mantle below depths of a few hundred kilometers has been difficult to measure directly. This information is a vital baseline for understanding helium isotopes in erupted basalts. We measured He-Sr-Pb isotope ratios in superdeep diamond fluid inclusions from the transition zone (depth of 410 to 660 kilometers) unaffected by degassing and shallow crustal contamination. We found extreme He-C-Pb-Sr isotope variability, with high He-3/He-4 ratios related to higher helium concentrations. This indicates that a less degassed, high-He-3/He-4 deep mantle source infiltrates the transition zone, where it interacts with recycled material, creating the diverse compositions recorded in ocean island basalts.


领域地球科学 ; 气候变化 ; 资源环境
收录类别SCI-E
WOS记录号WOS:000481688700047
WOS关键词HIGH HE-3/HE-4 RATIOS ; INFRARED-ABSORPTION ; OCEANIC-CRUST ; DIAMONDS ; PLUME ; BASALTS ; EVOLUTION ; ORIGIN ; CARBON ; ISLAND
WOS类目Multidisciplinary Sciences
WOS研究方向Science & Technology - Other Topics
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/202086
专题地球科学
资源环境科学
气候变化
作者单位1.Australian Natl Univ, Res Sch Earth Sci, 142 Mills Rd, Acton, ACT 2601, Australia;
2.Univ Alberta, Earth & Atmospher Sci, 116 St & 85 Ave, Edmonton, AB T6G 2R3, Canada;
3.Univ Bristol, Sch Earth Sci, Queens Rd, Bristol BS8 1QU, Avon, England;
4.Univ Glasgow, Sch Geog & Earth Sci, Gregory Bldg, Glasgow G12 8QQ, Lanark, Scotland;
5.Univ Sao Paolo, Sao Paulo, Brazil;
6.Univ Munster, Inst Mineral, Corrensstr 24, D-48149 Munster, Germany
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GB/T 7714
Timmerman, S.,Honda, M.,Burnham, A. D.,et al. Primordial and recycled helium isotope signatures in the mantle transition zone[J]. SCIENCE,2019,365(6454):692-+.
APA Timmerman, S..,Honda, M..,Burnham, A. D..,Amelin, Y..,Woodland, S..,...&Tohver, E..(2019).Primordial and recycled helium isotope signatures in the mantle transition zone.SCIENCE,365(6454),692-+.
MLA Timmerman, S.,et al."Primordial and recycled helium isotope signatures in the mantle transition zone".SCIENCE 365.6454(2019):692-+.
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