Prehistoric dark soils/sediments of Central Sudan, case study from the Mesolithic landscape at the Sixth Nile Cataract

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F17%3A00465853" target="_blank" >RIV/67985831:_____/17:00465853 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/62156489:43410/17:43911622 RIV/44555601:13520/17:43887816 RIV/00216208:11310/17:10360248

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.catena.2016.09.023" target="_blank" >http://dx.doi.org/10.1016/j.catena.2016.09.023</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.catena.2016.09.023" target="_blank" >10.1016/j.catena.2016.09.023</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Prehistoric dark soils/sediments of Central Sudan, case study from the Mesolithic landscape at the Sixth Nile Cataract

Popis výsledku v původním jazyce

The so-called “lake or swampy” dark colored deposits along or to the west of both the White and Main Niles, which were not historically inundated by the Nile as a whole, have been recorded recently in association with Mesolithic occupation. What are the possible formation processes of these deposits and what is their potential for understanding the environmental record in relation to Mesolithic occupation? New insight into this issue might be brought to the forefront by the findings in the Rocky Cities area at the south-western edge of Jebel Sabaloka by the Sixth Nile Cataract in central Sudan. The study deposits were evaluated in terms of sedimentology, micromorphology, chemical composition, grain size and magnetic parameters. The properties detected in the study section correspond to no less than three different phases of development. The lowermost part represents a saprolite horizon of granitic rocks exposed to weathering during the wet period, which resulted in alkaline conditions (1st phase of formation process). The occurrence of shells of Bulinus forskalii retrieved from the uppermost layer suggests that there was an anoxic environment in the past, which may be linked to the conditions of the present-day Sahel and subsequent attraction of this area for occupation during the Mesolithic period. Deposition of the acidic colluvia from the surrounding granitic rocks in this environment resulted in post-depositional processes involving Fe and Mn impregnation, leading to the black coloring (2nd phase of the formation process). The third phase of the formation processes is connected with the development of recent aridisols.

Název v anglickém jazyce

Prehistoric dark soils/sediments of Central Sudan, case study from the Mesolithic landscape at the Sixth Nile Cataract

Popis výsledku anglicky

The so-called “lake or swampy” dark colored deposits along or to the west of both the White and Main Niles, which were not historically inundated by the Nile as a whole, have been recorded recently in association with Mesolithic occupation. What are the possible formation processes of these deposits and what is their potential for understanding the environmental record in relation to Mesolithic occupation? New insight into this issue might be brought to the forefront by the findings in the Rocky Cities area at the south-western edge of Jebel Sabaloka by the Sixth Nile Cataract in central Sudan. The study deposits were evaluated in terms of sedimentology, micromorphology, chemical composition, grain size and magnetic parameters. The properties detected in the study section correspond to no less than three different phases of development. The lowermost part represents a saprolite horizon of granitic rocks exposed to weathering during the wet period, which resulted in alkaline conditions (1st phase of formation process). The occurrence of shells of Bulinus forskalii retrieved from the uppermost layer suggests that there was an anoxic environment in the past, which may be linked to the conditions of the present-day Sahel and subsequent attraction of this area for occupation during the Mesolithic period. Deposition of the acidic colluvia from the surrounding granitic rocks in this environment resulted in post-depositional processes involving Fe and Mn impregnation, leading to the black coloring (2nd phase of the formation process). The third phase of the formation processes is connected with the development of recent aridisols.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10505 - Geology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

CATENA

ISSN

0341-8162

e-ISSN

—

Svazek periodika

149

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

273-282

Kód UT WoS článku

000390733300026

EID výsledku v databázi Scopus

2-s2.0-84991448074