“Amojjar Pass”的意思、由来-开放百科全书

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Amojjar Pass

释义

References
External links

{{Coord|20.5|N|13.0|W|display=title}}Amojjar Pass is a wadi, or riverbed valley, located in the region of Amojjar in the centre of Adrar, near Atar, Mauritania.^[1] The pink-brown sandstone of the pass was worn away by repeated cycles of extreme dryness interrupted by torrential rain.^[1] The bases of the steep valley walls are covered in scree, loosed by the erosion of the rainfall.^[1] There is little plant life in the pass. Acacias are a notable exception, as they are resistant to drought.^[1]

Amojjar Pass is an important link for ground transportation in Mauritania because it provides a somewhat protected roadway connecting Mauritania's capital, Nouakchott, with other important locations such as Fderîck and Chinguetti.^[2]

There is a Neolithic rock shelter called Khroniguer near the pass, northeast of Atar at {{Coord|20|35|N|12|45|W|display=inline}}.^[3]

References

1. ^¹²³{{Cite book|title=Natural Wonders of the World|publisher=Reader's Digest Association, Inc|year=1980|isbn=978-0-89577-087-5|editor-last=Scheffel|editor-first=Richard L.|location=United States of America|pages=42|quote=|editor-last2=Wernet|editor-first2=Susan J.|via=}}
2. ^{{Cite web|url=https://eol.jsc.nasa.gov/SearchPhotos/photo.pl?mission=STS037&roll=84&frame=21|title=Display Photos Database Record|website=eol.jsc.nasa.gov|language=en|access-date=2017-01-27}}
3. ^{{Cite journal|last=Flight|first=Colin|date=1973|title=A Survey of Recent Results in the Radiocarbon Chronology of Northern and Western Africa|journal=The Journal of African History|volume=14|issue=4|pages=543|jstor=180899}}

External links

[https://web.archive.org/web/20070802114625/http://earth.jsc.nasa.gov/sseop/EFS/lores.pl?PHOTO=STS037-84-21 A NASA satellite image]

3 : Landforms of Mauritania|Canyons and gorges of Africa|Wadis

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