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DOI | 10.1038/s41561-020-0593-2 |
Global distribution of sediment-hosted metals controlled by craton edge stability | |
Hoggard, Mark J.1,2; Czarnota, Karol3,4; Richards, Fred D.1,5; Huston, David L.3; Jaques, A. Lynton4; Ghelichkhan, Sia4 | |
2020-06-29 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2020 |
卷号 | 13期号:7页码:504-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Australia; England |
英文摘要 | Major sediment-hosted base metal deposits are located within 200 km of the border between thick and thin lithosphere, according to statistical comparisons between global lithospheric thickness and known deposit locations. Sustainable development and the transition to a clean-energy economy drives ever-increasing demand for base metals, substantially outstripping the discovery rate of new deposits and necessitating dramatic improvements in exploration success. Rifting of the continents has formed widespread sedimentary basins, some of which contain large quantities of copper, lead and zinc. Despite over a century of research, the geological structure responsible for the spatial distribution of such fertile regions remains enigmatic. Here, we use statistical tests to compare deposit locations with new maps of lithospheric thickness, which outline the base of tectonic plates. We find that 85% of sediment-hosted base metals, including all giant deposits (>10 megatonnes of metal), occur within 200 kilometres of the transition between thick and thin lithosphere. Rifting in this setting produces greater subsidence and lower basal heat flow, enlarging the depth extent of hydrothermal circulation available for forming giant deposits. Given that mineralization ages span the past two billion years, this observation implies long-term lithospheric edge stability and a genetic link between deep Earth processes and near-surface hydrothermal mineral systems. This discovery provides an unprecedented global framework for identifying fertile regions for targeted mineral exploration, reducing the search space for new deposits by two-thirds on this lithospheric thickness criterion alone. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000544997400012 |
WOS关键词 | MULTIOBSERVABLE PROBABILISTIC INVERSION ; SHEAR-WAVE VELOCITY ; UPPER-MANTLE ; THERMAL STRUCTURE ; POLYCRYSTAL ANELASTICITY ; AUSTRALIAN LITHOSPHERE ; GARNET PERIDOTITES ; SEISMIC VELOCITY ; FLUID INCLUSIONS ; SULFIDE DEPOSITS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/281798 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Harvard Univ, Dept Earth & Planetary Sci, 20 Oxford St, Cambridge, MA 02138 USA; 2.Columbia Univ, Lamont Doherty Earth Observ, New York, NY 10027 USA; 3.Geosci Australia, Canberra, ACT, Australia; 4.Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT, Australia; 5.Imperial Coll, Dept Earth Sci & Engn, London, England |
推荐引用方式 GB/T 7714 | Hoggard, Mark J.,Czarnota, Karol,Richards, Fred D.,et al. Global distribution of sediment-hosted metals controlled by craton edge stability[J]. NATURE GEOSCIENCE,2020,13(7):504-+. |
APA | Hoggard, Mark J.,Czarnota, Karol,Richards, Fred D.,Huston, David L.,Jaques, A. Lynton,&Ghelichkhan, Sia.(2020).Global distribution of sediment-hosted metals controlled by craton edge stability.NATURE GEOSCIENCE,13(7),504-+. |
MLA | Hoggard, Mark J.,et al."Global distribution of sediment-hosted metals controlled by craton edge stability".NATURE GEOSCIENCE 13.7(2020):504-+. |
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