Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1704461114 |
Age of Jupiter inferred from the distinct genetics and formation times of meteorites | |
Kruijer, Thomas S.1,2; Burkhardt, Christoph1; Budde, Gerrit1; Kleine, Thorsten1 | |
2017-06-27 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
ISSN | 0027-8424 |
出版年 | 2017 |
卷号 | 114期号:26页码:6712-6716 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; USA |
英文摘要 | The age of Jupiter, the largest planet in our Solar System, is still unknown. Gas-giant planet formation likely involved the growth of large solid cores, followed by the accumulation of gas onto these cores. Thus, the gas-giant cores must have formed before dissipation of the solar nebula, which likely occurred within less than 10 My after Solar System formation. Although such rapid accretion of the gas-giant cores has successfully been modeled, until now it has not been possible to date their formation. Here, using molybdenum and tungsten isotope measurements on iron meteorites, we demonstrate that meteorites derive from two genetically distinct nebular reservoirs that coexisted and remained spatially separated between similar to 1 My and similar to 3-4My after Solar System formation. The most plausible mechanism for this efficient separation is the formation of Jupiter, opening a gap in the disk and preventing the exchange of material between the two reservoirs. As such, our results indicate that Jupiter's core grew to similar to 20 Earth masses within <1My, followed by a more protracted growth to similar to 50 Earth masses until at least similar to 3-4 My after Solar System formation. Thus, Jupiter is the oldest planet of the Solar System, and its solid core formed well before the solar nebula gas dissipated, consistent with the core accretion model for giant planet formation. |
英文关键词 | Jupiter giant planet formation nucleosynthetic isotope anomalies Hf-W chronometry solar nebula |
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:000404108400046 |
WOS关键词 | GAS-GIANT PLANETS ; HF-W CHRONOMETRY ; CORE FORMATION ; ISOTOPIC COMPOSITION ; IRON-METEORITES ; NEUTRON-CAPTURE ; RAPID ACCRETION ; PARENT BODIES ; SOLAR-SYSTEM ; ANOMALIES |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
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/204741 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Munster, Inst Planetol, D-48149 Munster, Germany; 2.Lawrence Livermore Natl Lab, Nucl & Chem Sci Div, Livermore, CA 94550 USA |
推荐引用方式 GB/T 7714 | Kruijer, Thomas S.,Burkhardt, Christoph,Budde, Gerrit,et al. Age of Jupiter inferred from the distinct genetics and formation times of meteorites[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2017,114(26):6712-6716. |
APA | Kruijer, Thomas S.,Burkhardt, Christoph,Budde, Gerrit,&Kleine, Thorsten.(2017).Age of Jupiter inferred from the distinct genetics and formation times of meteorites.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,114(26),6712-6716. |
MLA | Kruijer, Thomas S.,et al."Age of Jupiter inferred from the distinct genetics and formation times of meteorites".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 114.26(2017):6712-6716. |
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