Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41561-019-0377-8 |
Mesosiderite formation on asteroid 4 Vesta by a hit-and-run collision | |
Haba, Makiko K.1,2; Wotzlaw, Jorn-Frederik1; Lai, Yi-Jen1,4; Yamaguchi, Akira3; Schonbachler, Maria1 | |
2019-07-01 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2019 |
卷号 | 12期号:7页码:510-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland; Japan; Australia |
英文摘要 | Collision and disruption processes of protoplanetary bodies in the early Solar System are key to understanding the genesis of diverse types of main-belt asteroids. Mesosiderites are stony-iron meteorites that formed by the mixing of howardite-eucrite-diogenite-like crust and molten core materials and provide unique insights into the catastrophic break-up of differentiated asteroids. However, the enigmatic formation process and the poorly constrained timing of metal-silicate mixing complicate the assignment to potential parent bodies. Here we report the high-precision uranium-lead dating of mesosiderite zircons by isotope dilution thermal ionization mass spectrometry to reveal an initial crust formation 4,558.5 +/- 2.1 million years ago and metal-silicate mixing at 4,525.39 +/- 0.85 million years ago. The two distinct ages coincide with the timing of the crust formation and a large-scale reheating event on the eucrite parent body, probably the asteroid Vesta. This chronological coincidence corroborates that Vesta is the parent body of mesosiderite silicates. Mesosiderite formation on Vesta can be explained by a hit-and-run collision 4,525.4 million years ago that caused the thick crust observed by NASA's Dawn mission and explains the missing olivine in mesosiderites, howardite-eucrite-diogenite meteorites and vestoids. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000473104300006 |
WOS关键词 | U-PB AGE ; THERMAL HISTORY ; BASALTIC EUCRITES ; PARENT BODY ; ZIRCONS ; SCALE ; GEOCHRONOLOGY ; CHRONOLOGY ; OLIVINE ; ORIGIN |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/184801 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Swiss Fed Inst Technol, Inst Geochem & Petrol, Zurich, Switzerland; 2.Tokyo Inst Technol, Dept Earth & Planetary Sci, Tokyo, Japan; 3.Natl Inst Polar Res, Tokyo, Japan; 4.Macquarie Univ, Dept Earth & Planetary Sci, Macquarie GeoAnalyt, Sydney, NSW, Australia |
推荐引用方式 GB/T 7714 | Haba, Makiko K.,Wotzlaw, Jorn-Frederik,Lai, Yi-Jen,et al. Mesosiderite formation on asteroid 4 Vesta by a hit-and-run collision[J]. NATURE GEOSCIENCE,2019,12(7):510-+. |
APA | Haba, Makiko K.,Wotzlaw, Jorn-Frederik,Lai, Yi-Jen,Yamaguchi, Akira,&Schonbachler, Maria.(2019).Mesosiderite formation on asteroid 4 Vesta by a hit-and-run collision.NATURE GEOSCIENCE,12(7),510-+. |
MLA | Haba, Makiko K.,et al."Mesosiderite formation on asteroid 4 Vesta by a hit-and-run collision".NATURE GEOSCIENCE 12.7(2019):510-+. |
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