Mechanical Erosion in a Tropical River Basin in Southeastern Brazil : Chemical Characteristics and Annual Fluvial Transport Mechanisms
المؤلفون المشاركون
Hissler, Christophe
Fernandes, Alexandre Martins
Mortatti, Jefferson
Nolasco, Murilo Basso
المصدر
Journal of Geological Research
العدد
المجلد 2012، العدد 2012 (31 ديسمبر/كانون الأول 2012)، ص ص. 1-8، 8ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2012-12-31
دولة النشر
مصر
عدد الصفحات
8
التخصصات الرئيسية
الملخص EN
This study aims to evaluate the mechanical erosion processes that occur in a tropical river basin, located in the São Paulo state, southeastern Brazil, through the chemical characterization of fine suspended sediments and the transport mechanisms near the river mouth, from March 2009 to September 2010.
The chemical characterization indicated the predominance of SiO2, Al2O3, and Fe2O3 and showed no significant seasonal influences on the major element concentrations, expressed as oxides.
The concentration variations observed were related to the mobility of chemical species.
The evaluation of the rock-alteration degree indicated that the physical weathering was intense in the drainage basin.
The fine suspended sediments charge was influenced by the variation discharges throughout the study period.
The solid charge estimate of the surface runoff discharge was four times higher in the rainy season than the dry season.
The transport of fine suspended sediments at the Sorocaba River mouth was 55.70 t km−2 a−1, corresponding to a specific physical degradation of 37.88 m Ma−1, a value associated with the mechanical erosion rate that corresponds to the soil thickness reduction in the drainage basin.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Fernandes, Alexandre Martins& Nolasco, Murilo Basso& Hissler, Christophe& Mortatti, Jefferson. 2012. Mechanical Erosion in a Tropical River Basin in Southeastern Brazil : Chemical Characteristics and Annual Fluvial Transport Mechanisms. Journal of Geological Research،Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-447764
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Fernandes, Alexandre Martins…[et al.]. Mechanical Erosion in a Tropical River Basin in Southeastern Brazil : Chemical Characteristics and Annual Fluvial Transport Mechanisms. Journal of Geological Research No. 2012 (2012), pp.1-8.
https://search.emarefa.net/detail/BIM-447764
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Fernandes, Alexandre Martins& Nolasco, Murilo Basso& Hissler, Christophe& Mortatti, Jefferson. Mechanical Erosion in a Tropical River Basin in Southeastern Brazil : Chemical Characteristics and Annual Fluvial Transport Mechanisms. Journal of Geological Research. 2012. Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-447764
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-447764
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر