Everything about Abu Rawash totally explained
Abu Rawash (also known as
Abu Roach), 8 km to the North of
Giza (coordinates ), is the site of
Egypt's most northerly
pyramid — the mostly ruined
Pyramid of Djedefre, the son and successor of
Khufu. Originally it was thought that this pyramid had never been completed, but the current archaelogicical consensus is that not only was it completed, but that it was originally about the same size as the
Pyramid of Menkaure – the third largest of the
Giza pyramids.
Its location adjacent to a major crossroads made it an easy source of stone. Quarrying — which began in Roman times — has left little apart from a few courses of stone superimposed upon the natural hillock that formed part of the pyramid's core. A small adjacent satellite pyramid is in a better state of preservation.
Geology of Abu Rawash: The sedimentary succession in Abu Rawash area ranges in age from Late Cretaceous to Quaternary but is punctuated by several unconformity surfaces.
Turonian to
Coniacian representing the sedimentary succession of Abu Rawash
Formation that differentiated into six informal units (members) from younger to older as follows:
1. Basal clastic member
2. Rudist-bearing limestone-marl member
3. Limestone member
4. Actaeonella-bearing limestone-marl member
5. Flint-bearing chalky limestone member
6. Plicatula-bearing marl-limestone member.
Sedimentary depositional environment of Abu Rawash Formation are characterized by variable conditions and settings ranging from lower mixed to upper
intertidal flat and
subtidal channel for the clastic facies and calm to agitated open marine inner to middle platform for the carbonate
facies.
Vertical sequence or facies hierarchy display that the facies sequence of the basal clastic member indicates a progradational preitidal sequence. While those of the rudist-bearing member and limestone member represent a cyclic progradtion of high energetic/storm facies above an open marine low energetic fore shoal subtidal facies. The facies sequence of the Acteonella-bearing member reflects two facies associations comprising open marine subtidal assemblage and shoal or bank facies. The latter facies represents the bank that the robust thick shelled Durania arnaudi with the coralline sponge heads accreted local mounds in restricted areas (El-Hassana dome). The vertical facies hierarchy of the flint-bearing chalky limestone member suggests a renewed shoaling of the depositional accommodation, shifting to inner-platform setting and a progradation of mobile bioclastic
shoals or banks. The stacking of the sedimentary facies in the Plicatula-bearing member indicates an accumulation in an open shallow sea (inner platform) with intermittent supply of fine terrigenous clastics and clays. (Hanan.S.M. Badawy, Geology Dept., Faculty of Science,
Beni Suef,
Egypt)
Further Information
Get more info on 'Abu Rawash'.
|
External Link Exchanges
Do you know how hard it is to get a link from a large encyclopaedia? Well we're different and will prove it. To get a link from us just add the following HTML to your site on a relevant page:
<a href="http://abu_rawash.totallyexplained.com">Abu Rawash Totally Explained</a>
Then simply click through this link from your web page. Our crawlers will verify your link, extract the title of your web page and instantly add a link back to it. If you like you can remove the words Totally Explained and embed the link in article text.
As long as your link remains in place, we'll keep our link to you right here. Please play fair - our crawlers are watching. Your site must be closely related to this one's topic. Any kind of spamming, dubious practises or removing the link will result in your link from us being dropped and, potentially, your whole site being banned. |
