气候变化领域集成服务门户(CCPortal): The sedimentary cycle on early mars

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DOI	10.1146/annurev-earth-053018-060332
	The sedimentary cycle on early mars
	McLennan S.M.; Grotzinger J.P.; Hurowitz J.A.; Tosca N.J.
发表日期	2019
ISSN	0084-6597
起始页码	91
结束页码	118
卷号	47
英文摘要	Two decades of intensive research have demonstrated that early Mars (2 Gyr) had an active sedimentary cycle, including well-preserved stratigraphic records, understandable within a source-to-sink framework with remarkable fidelity. This early cycle exhibits first-order similarities to (e.g., facies relationships, groundwater diagenesis, recycling) and first-order differences from (e.g., greater aeolian versus subaqueous processes, basaltic versus granitic provenance, absence of plate tectonics) Earth's record. Mars' sedimentary record preserves evidence for progressive desiccation and oxidation of the surface over time, but simple models for the nature and evolution of paleoenvironments (e.g., acid Mars, early warm and wet versus late cold and dry) have given way to the view that, similar to Earth, different climate regimes on Mars coexisted on regional scales and evolved on variable timescales, and redox chemistry played a pivotal role. A major accomplishment of Mars exploration has been to demonstrate that surface and subsurface sedimentary environments were both habitable and capable of preserving any biological record. ▪ Mars has an ancient sedimentary rock record with many similarities to but also many differences from Earth's sedimentary rock record. ▪ Mars' ancient sedimentary cycle shows a general evolution toward more desiccated and oxidized surficial conditions. ▪ Climatic regimes of early Mars were relatively clement but with regional variations leading to different sedimentary mineral assemblages. ▪ Surface and subsurface sedimentary environments on early Mars were habitable and capable of preserving any biological record that may have existed. © 2019 by Annual Reviews. All rights reserved.
关键词	Biology Climate models Earth (planet)Geochemistry Groundwater Groundwater geochemistry Martian surface analysis Sedimentology Stratigraphy diagenesis First order differences Mars Regional variation Sedimentary cycles Sedimentary environment Sedimentary records Stratigraphic records Sedimentary rocks desiccation diagenesis Mars sediment chemistry sedimentary rock sedimentary sequence sedimentology sequence stratigraphy
语种	英语
来源机构	Annual Review of Earth and Planetary Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/131939
推荐引用方式 GB/T 7714	McLennan S.M.,Grotzinger J.P.,Hurowitz J.A.,et al. The sedimentary cycle on early mars[J]. Annual Review of Earth and Planetary Sciences,2019,47.
APA	McLennan S.M.,Grotzinger J.P.,Hurowitz J.A.,&Tosca N.J..(2019).The sedimentary cycle on early mars.,47.
MLA	McLennan S.M.,et al."The sedimentary cycle on early mars".47(2019).