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- Q615987 subject Q8343740.
- Q615987 subject Q8543093.
- Q615987 abstract "Aorounga is an eroded meteorite impact crater in Chad, Africa. The exposed remnant of the crater is 12.6 km in diameter and its age is estimated to be less than 345 million years (Carboniferous or younger). The crater is accompanied by two nearby circular features revealed by Space Shuttle SIR-C radar. These may be related impact craters, and if correct, Aorounga may be part of a crater chain. On the assumption that this hypothesis is correct, the exposed Aorounga crater is sometimes referred to as Aorounga South. The central highland, or peak, of the crater is surrounded by a small sand-filled trough; this in turn is surrounded by a larger circular trough. Linear rock ridges alternating with light orange sand deposits cross the image from upper left to lower right; these are called Yardangs by geomorphologists. Yardangs form by wind erosion of exposed rock layers in a unidirectional wind field. The wind blows from the north-east at Aorounga, and sand dunes formed between the yardangs are actively migrating to the south-west.".
- Q615987 thumbnail Aorounga_crater.png?width=300.
- Q615987 wikiPageExternalLink page-55c9c6ee736a0.html.
- Q615987 wikiPageWikiLink Q133738.
- Q615987 wikiPageWikiLink Q37221.
- Q615987 wikiPageWikiLink Q48806.
- Q615987 wikiPageWikiLink Q498794.
- Q615987 wikiPageWikiLink Q52109.
- Q615987 wikiPageWikiLink Q55818.
- Q615987 wikiPageWikiLink Q580836.
- Q615987 wikiPageWikiLink Q60186.
- Q615987 wikiPageWikiLink Q657.
- Q615987 wikiPageWikiLink Q8343740.
- Q615987 wikiPageWikiLink Q8543093.
- Q615987 point "19.1 19.25".
- Q615987 type SpatialThing.
- Q615987 comment "Aorounga is an eroded meteorite impact crater in Chad, Africa. The exposed remnant of the crater is 12.6 km in diameter and its age is estimated to be less than 345 million years (Carboniferous or younger). The crater is accompanied by two nearby circular features revealed by Space Shuttle SIR-C radar. These may be related impact craters, and if correct, Aorounga may be part of a crater chain.".
- Q615987 label "Aorounga crater".
- Q615987 lat "19.1".
- Q615987 long "19.25".
- Q615987 depiction Aorounga_crater.png.