Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1126/science.aar4058 |
Earth and Moon impact flux increased at the end of the Paleozoic | |
Mazrouei, Sara1; Ghent, Rebecca R.1,2; Bottke, William F.3; Parker, Alex H.3; Gernon, Thomas M.4 | |
2019-01-18 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2019 |
卷号 | 363期号:6424页码:253-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Canada; USA; England |
英文摘要 | The terrestrial impact crater record is commonly assumed to be biased, with erosion thought to eliminate older craters, even on stable terrains. Given that the same projectile population strikes Earth and the Moon, terrestrial selection effects can be quantified by using a method to date lunar craters with diameters greater than 10 kilometers and younger than 1 billion years. We found that the impact rate increased by a factor of 2.6 about 290 million years ago. The terrestrial crater record shows similar results, suggesting that the deficit of large terrestrial craters between 300 million and 650 million years ago relative to more recent times stems from a lower impact flux, not preservation bias. The almost complete absence of terrestrial craters older than 650 million years may indicate a massive global-scale erosion event near that time. |
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:000456140700030 |
WOS关键词 | APPROXIMATE BAYESIAN COMPUTATION ; PHYSICAL-CHARACTERISTICS ; CRATERING RATE ; LUNAR ; AGE ; HISTORY ; EJECTA ; CONSTRAINTS ; KIMBERLITE ; MODEL |
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/200566 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Toronto, Dept Earth Sci, Toronto, ON, Canada; 2.Planetary Sci Inst, Tucson, AZ USA; 3.Southwest Res Inst, Boulder, CO USA; 4.Univ Southampton, Sch Ocean & Earth Sci, Southampton, Hants, England |
推荐引用方式 GB/T 7714 | Mazrouei, Sara,Ghent, Rebecca R.,Bottke, William F.,et al. Earth and Moon impact flux increased at the end of the Paleozoic[J]. SCIENCE,2019,363(6424):253-+. |
APA | Mazrouei, Sara,Ghent, Rebecca R.,Bottke, William F.,Parker, Alex H.,&Gernon, Thomas M..(2019).Earth and Moon impact flux increased at the end of the Paleozoic.SCIENCE,363(6424),253-+. |
MLA | Mazrouei, Sara,et al."Earth and Moon impact flux increased at the end of the Paleozoic".SCIENCE 363.6424(2019):253-+. |
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