Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1126/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
![]() |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
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 |
推荐引用方式 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-+. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论