A Study On Inverted Topography

A Study On Inverted Topography

Abstract



Inverted topography in a different of scales from large scale to fine scale has been observed in numerous localities on Martian surface. Also, Inverted wadis in Western Desert of Egypt in seven sites cover an area of about 26.000 square kilometers, provide us a natural museum for a different of scales, mechanisms of development, and planimetric patterns. Therefore, we carried out field study in four sites of inverted wadis in Gabal El–Na'aloon, east of Baharyia, west of Ghard Abu Moharik, and west of Tahta city rane with laboratory analysis for collected samples. In this paper, we shed light on the morphological, sedimentological, and mineralogical aspects of inverted wadis in Western Desert of Egypt. We conclude that the majority of minerals which led to the cementation of inverted wadis in visited sites, are calcite, iron oxide, gypsum, illite, magnesite, alunite, vermiculite, aerinite, surite, hematite, silicon oxide, epidote, magnetite, and clay. In addition, the grain–size distribution for 18 samples of inverted wadis in two localities ranges from (–6 to 4.5 ɸ scale), with boulders are commonly 1 m in diameter. Lastly, inverted topography on Mars as a landform is extremely valuable to give us detailed data about paleoenvironmental conditions, including paleohydrological and sedimentological, this is making it an important candidate sites for landing.



Keywords: Inverted topography; Western Desert; Mars; analogs



1. Introduction



Inversion topography

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