دورية أكاديمية
The erosion of the beaches on the coast of Alicante: Study of the mechanisms of weathering by accelerated laboratory tests.
| العنوان: | The erosion of the beaches on the coast of Alicante: Study of the mechanisms of weathering by accelerated laboratory tests. |
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| المؤلفون: | López I; Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain. Electronic address: isalopu.il@gmail.com., López M; Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain., Aragonés L; Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain., García-Barba J; Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain., López MP; Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain., Sánchez I; Dept. of Civil Engineering, University of Alicante, Carretera San Vicent del Raspeig s/n, 03690 Alicante, Spain. |
| المصدر: | The Science of the total environment [Sci Total Environ] 2016 Oct 01; Vol. 566-567, pp. 191-204. Date of Electronic Publication: 2016 May 21. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Country of Publication: Netherlands NLM ID: 0330500 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-1026 (Electronic) Linking ISSN: 00489697 NLM ISO Abbreviation: Sci Total Environ Subsets: PubMed not MEDLINE |
| أسماء مطبوعة: | Original Publication: Amsterdam, Elsevier. |
| مستخلص: | One of the main problems that coasts around the world present, is the regression and erosion of beaches. However, the factors involved in these processes are unclear. In this study, the influence of sediment erosion on beach regression has been analysed. In order to do that, a three-step investigation has been carried out. Firstly, coastline variations of four Spanish beaches have been analysed. Secondly, a study on sediment position along the beach profile has been developed. Finally, the process that beach sediments undergo along the surf zone when they are hit by the incident waves has been simulated by an accelerated particle weathering test. Samples of sand and shells were subjected to this accelerated particle weathering test. Results were supplemented with those from carbonate content test, XRD, SEM and granulometric analysis. Results shows a cross-shore classification of sediments along the beach profile in which finer particles move beyond offshore limit. Besides, it was observed that sediment erosion process is divided into three sages: i) particles wear due to crashes ii) dissolution of the carbonate fraction, and iii) breakage and separation of mineral and carbonate parts of particles. All these processes lead to a reduction of particle size. The mechanism responsible of beach erosion would consist of multiples and continuous particle location exchanges along the beach profile as a consequence of grain-size decrease due to erosion. (Copyright © 2016 Elsevier B.V. All rights reserved.) |
| فهرسة مساهمة: | Keywords: Beach erosion; Dissolution of carbonates, median sediment size D(50); Particles weathering |
| تواريخ الأحداث: | Date Created: 20160525 Date Completed: 20180308 Latest Revision: 20180308 |
| رمز التحديث: | 20240628 |
| DOI: | 10.1016/j.scitotenv.2016.05.026 |
| PMID: | 27220096 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1879-1026 |
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| DOI: | 10.1016/j.scitotenv.2016.05.026 |