2019
DOI: 10.1038/s41561-019-0491-7
|View full text |Cite
|
Sign up to set email alerts
|

A tenfold slowdown in river meander migration driven by plant life

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

5
97
0

Year Published

2020
2020
2023
2023

Publication Types

Select...
7

Relationship

4
3

Authors

Journals

citations
Cited by 101 publications
(106 citation statements)
references
References 35 publications
5
97
0
Order By: Relevance
“…Here we utilize the stratigraphy of the Jezero delta (Goudge et al, 2018) and combine it with a new empirical relationship between the lateral migration rate of single-thread rivers and channel width 10.1029/2019AV000141 (Ielpi & Lapôtre, 2020) to infer the duration of surface-runoff events that deposited the sediments. We combine the empirical relationship of Ielpi and Lapôtre (2020), corrected for climate and scaled to Mars gravity, with orbiter-based measurements of river-deposit stratigraphy to estimate sediment aggradation rates and determine the minimum duration of delta formation (i.e., the time it would have taken to form the Jezero delta in a single, continuous sediment-transport event). We then independently estimate the total timespan over which the Jezero delta formed, including dry spells, using the technique of Buhler et al (2014).…”
Section: Research Articlementioning
confidence: 99%
See 1 more Smart Citation
“…Here we utilize the stratigraphy of the Jezero delta (Goudge et al, 2018) and combine it with a new empirical relationship between the lateral migration rate of single-thread rivers and channel width 10.1029/2019AV000141 (Ielpi & Lapôtre, 2020) to infer the duration of surface-runoff events that deposited the sediments. We combine the empirical relationship of Ielpi and Lapôtre (2020), corrected for climate and scaled to Mars gravity, with orbiter-based measurements of river-deposit stratigraphy to estimate sediment aggradation rates and determine the minimum duration of delta formation (i.e., the time it would have taken to form the Jezero delta in a single, continuous sediment-transport event). We then independently estimate the total timespan over which the Jezero delta formed, including dry spells, using the technique of Buhler et al (2014).…”
Section: Research Articlementioning
confidence: 99%
“…However, the discharge record of one such stream-the Amargosa River draining into Death Valley, California-is available through one gauging station that recorded near-continuous data since 1962 at Tecopa, California. In the absence of a more inclusive and geographically varied database, the discharge record of the Amargosa River is herein considered as overall representative of other arid rivers in the unvegetated-river compilation of Ielpi and Lapôtre (2020). Bankfull discharge for the Tecopa gauging site was estimated from field observations as described in Ielpi and Lapôtre (2020).…”
Section: 1029/2019av000141mentioning
confidence: 99%
“…Because most geomorphic work takes place at bankfull or higher discharge (Wolman and Miller, ; Blom et al ., ; Francalanci et al ., ; Naito and Parker, ), desert rivers might be expected to experience limited migration compared to perennial rivers of wetter climate zones. Yet, ephemeral rivers flowing through some of the driest sites on Earth display morphodynamic complexities equal to humid‐climate rivers (Donselaar et al ., ; Li et al ., , ; Ielpi et al ., ) and, owing to the lack of bank vegetation, migrate significantly faster than their vegetated counterparts (Ielpi and Lapôtre, ). This realization prompts two questions: (i) How often do desert rivers migrate?…”
Section: Rationale and Study Areamentioning
confidence: 99%
“…Meandering rivers with muddy floodplains, in particular, are thought to have co-evolved with land plants and to only have become prevalent with the greening of the continents 109,110 , but the pre-life fluvial record of Earth is relatively poor 110 . In contrast, the surface of Mars hosts many meandering-river deposits 111 113 and quantify the rates of associated processes, such as lateral channel migration 114 . Thus, Martian river deposits might hold the key to interpreting the pre-Silurian rock record of Earth 113 , which, in turn, has direct implications for the duration of sediment storage within fluvial floodplains and, therefore, the pace of geochemical cycling and Earth's palaeoclimate 114,115 .…”
Section: Initiation Of Plate Tectonicsmentioning
confidence: 99%
“…In contrast, the surface of Mars hosts many meandering-river deposits 111 113 and quantify the rates of associated processes, such as lateral channel migration 114 . Thus, Martian river deposits might hold the key to interpreting the pre-Silurian rock record of Earth 113 , which, in turn, has direct implications for the duration of sediment storage within fluvial floodplains and, therefore, the pace of geochemical cycling and Earth's palaeoclimate 114,115 . Biological cycling dominates the distribution and availability of elements both critical and peripheral to life functions on Earth today, even creating new minerals 116 .…”
Section: Initiation Of Plate Tectonicsmentioning
confidence: 99%