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Publikacje

Inne publikacje w grupie tematycznej "Prace wielotematyczne"

Inne wydawnictwa z 2008 roku

Contemporary evolution of the natural environment of the region between Antiatlas and Sahara (Morocco)

Contemporary evolution of the natural environment of the region between Antiatlas and Sahara (Morocco)

Skiba S., Krzemień K. (red.), 2008, Contemporary evolution of the natural environment of the region between Antiatlas and Sahara (Morocco), Prace Geograficzne, z. 118.

ISSN 1644-3586

Język publikacji: angielski

Cena egzemparza: 36.75 PLN (w tym 5% VAT).

Publikacja jest do nabycia w Instytucie Geografii i Gospodarki Przestrzennej UJ. Istnieje również możliwość złożenia zamówienia przez internet.

Spis treści

Stefan Skiba, Kazimierz Krzemień 

 s. 7

Prefacje

Pełny tekst w języku angielskim (18 KB)

Abdellah Laouina 

 s. 9-10

Morphostructural and geomorphological outline of Morocco

\"textSummary Pełny tekst w języku angielskim (71 KB)

Abdellah Laouina, Miloud Chaker, Rachida Nafaa, Antonio Ferreira, Simone Van Dijck 

 s. 15-22

Recent erosion measurements in Morocco

\"textSummary Pełny tekst w języku angielskim (60 KB)

Maciej Dłużewski, Kazimierz Krzemień 

 s. 23-36

Physical geography of the Coude du Dra region

\"textSummary Pełny tekst w języku angielskim (326 KB)

Stefan Skiba 

 s. 37-42

Soils of the southern part of Morocco

\"textSummary Pełny tekst w języku angielskim (68 KB)

Stefan Skiba, Michał Skiba 

 s. 43-50

Properties of the desert soils of the Mhamid area

\"textSummary Pełny tekst w języku angielskim (194 KB)

Maciej Dłużewski 

 s. 51-64

Reasons for development of the dune fields in the Coude du Dra region

\"textSummary Pełny tekst w języku angielskim (778 KB)

Elżbieta Mycielska-Dowgiałło, Maciej Dłużewski, Lidia Dubis, Barbara Woronko 

 s. 65-78

Extorted forms of aeolian accumulation in the Coude du Dra region

\"textSummary Pełny tekst w języku angielskim (1017 KB)

Andrzej Barczuk, Maciej Dłużewski 

 s. 79-92

The source of the Aeolian sediments in the Coude du Dra region

Summary: Determination of the source of material building the dunes of the Coude du Dra region was the aim of the performed studies. To estimate the source areas, the selected textural features, especially the mineralogical and lithologic composition of the dune sand basement sediments were studied. This composition was determined by means of the microscope analysis of the granular preparations. On the basis of the obtained results one found that the dunes of the Coude du Dra region have high content of the components of low resistance to the deteriorating factors of transport and weathering processes. Only in the north-eastern part of the area and in the apical parts of the highest dune forms there occur the sediments with high content of the resistant minerals, mainly quartz. The results indicated also the insignificant difference in the mineral and lithologic composition of the sediments of the basement and those of the dunes. This allowed the conclusion that the source of the dune sediments occur in the close neighbourhood of the dunes. This yielded from the presence of numerous components of relatively coarse fraction and low resistance, transported mainly by saltation, which is the mode favouring intensive mechanic abrasion. They are mainly clayey-ferruginous clasts, moreover feldspars and carbonate rock grains. Moreover, the feldspars are well preserved and frequently of automorphic habit and certain feldspars occur as perfect crystals with sharp edges, which could not be preserved during a long transport. The close source of the dune material and short period of the dune formation were confirmed by the analysis of the composition of the heavy mineral fraction. On the basis of the obtained results one found that first of all the local sediments accumulated in stagnating water were the source of the dune material, mainly the sediments of the Iriqui Lake and numerous pits without water outflow, occurring in the area of the broad there valley of Oued (Wadi) Dra. This is indicated by a very high content of clayey-ferruginous clasts, which formed during the periodic water flow transporting to local, ephemeral basins fine detritic material coloured in red by dispersed iron compounds, forming commonly under strongly oxidizing desert conditions.

Słowa kluczowe (w języku angielskim): dune fields, source of dune material, mineral and lithologic sediment composition, Coude du Dra region, southern Morocco.

Prace Geograficzne, 2008, z. 118, s. 79-92.

Instytut Geografii i Gospodarki Przestrzennej UJ

ISSN 1644-3586

Pełny tekst w języku angielskim (1.5 MB)

Barbara Woronko 

 s. 93-102

Surface features of sand grains from the Coude du Dra region (Morocco)

\"textSummary Pełny tekst w języku angielskim (259 KB)

Bogdana Izmaiłow, Kazimierz Krzemień 

 s. 103-118

The geomorphological role of episodic rivers based on the example of the Oueds el Mut and el Feija (AntiAtlas Mountains, Morocco)

\"textSummary Pełny tekst w języku angielskim (272 KB)

Andrzej Barczuk, Maciej Dłużewski, Lidia Dubis 

 s. 119-134

Natural and anthropogenic factors of the development of Erg Chebbi

\"textSummary Pełny tekst w języku angielskim (644 KB)

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