•  
  •  
 

عنوان المقال عربي

التجوية الكيميائية والتضاريس الناتجة عنها في صحراء المثنى

اسم الباحث عربي

ولاء كامل صبري، عبد الله صبار عبود

Abstract

The research topic includes the study of chemical weathering processes as one of the geomorphological processes affecting the formation of Earth surface forms. It is specialized in karst dissolution forms, as these forms are created by several geomorphological processes of dissolution, hydrolysis, and oxidation, in addition to the carbonation process that occurs between atmospheric elements of water, carbon dioxide gas, and oxygen, and interacts with the mineral components of rocks, causing dissolution processes inside the rock. These processes result in the formation of various karst forms in the study area, such as dissolution pits, sinkholes, depressions, valleys, and karst depressions. The study showed that the rainy periods of the ancient climate, especially the period extending from the Miocene and Oligocene eras, and the Pliocene era (the end of the Tertiary period) to the Pleistocene era (the beginning of the Quaternary period), in which the role of chemical weathering and hydrolysis was active, and with the help of structural factors and dissolution processes, large basins and most of these dissolution forms were formed. The study also concluded that the dissolution forms or Karst occupies a large proportion of the total terrain prevailing in the Muthanna desert due to the wide spread of soluble rocks in its geological formations, which consist mainly of limestone rocks or limestone (calcium carbonate (CaCO3)), dolomite rocks (calcium and magnesium carbonate) and gypsum.

Keywords

AL-Muthanna Desert, Chemical Weathering, Landforms, Al-Muthanna Desert

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.