Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.geomorph.2014.09.009 |
Long-term erosion rate measurements in gypsum caves of Sorbas (SE Spain) by the Micro-Erosion Meter method | |
Sanna, Laura1,3; De Waele, Jo2; Maria Calaforra, Jose3; Forti, Paolo2 | |
通讯作者 | Sanna, Laura |
来源期刊 | GEOMORPHOLOGY
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ISSN | 0169-555X |
EISSN | 1872-695X |
出版年 | 2015 |
卷号 | 228页码:213-225 |
英文摘要 | The present work deals with the results of long-term micro-erosion measurements in the most important gypsum cave of Spain, the Cueva del Agua (Sorbas, Almeria, SE Spain). Nineteen MEM stations were positioned in 1992 in a wide range of morphological and environmental settings (gypsum floors and walls, carbonate speleothems, dry conduits and vadose passages) inside and outside the cave, on gypsum and carbonate bedrocks and exposed to variable degree of humidity, different air flow and hydrodynamic conditions. Four different sets of stations have been investigated: (1) the main cave entrance (Las Vinicas spring); (2) the main river passage; (3) the abandoned Laboratory tunnel; and (4) the external gypsum surface. Data over a period of about 18 years are available. The average lowering rates vary from 0.014 to 0.016 mm yr(-1) near the main entrance and in the Laboratory tunnel, to 0.022 mm(-1) on gypsum floors and 0.028 mm yr(-1) on carbonate flowstones. The denudation data from the external gypsum stations are quite regular with a rate of 0.170 mm yr(-1). The observations allowed the collecting of important information concerning the feeding of the karst aquifer not only by infiltrating rainwater, but under present climate conditions also by water condensation of moist air flow. This contribution to the overall karst processes in the Cueva del Agua basin represents over 20% of the total chemical dissolution of the karst area and more than 50% of the speleogenetically removed gypsum in the cave system, thus representing all but a secondary role in speleogenesis. Condensation-corrosion is most active along the medium walls, being slower at the roof and almost absent close to the floor. This creates typical corrosion morphologies such as cupola, while gypsum flowers develop where evaporation dominates. This approach also shows quantitatively the morphological implications of condensation-corrosion processes in gypsum karst systems in arid zones, responsible for an average surface lowering of 0.047 mm yr(-1), while mechanical erosion produces a lowering of 0.123 mm yr(-1). (C) 2014 Elsevier B.V. All rights reserved. |
英文关键词 | Micro-Erosion Meter (MEM) Gypsum karst Condensation-corrosion Cueva del Agua Sorbas, Spain |
类型 | Article |
语种 | 英语 |
国家 | Italy ; Spain |
收录类别 | SCI-E |
WOS记录号 | WOS:000347576300018 |
WOS关键词 | WESTERN UKRAINE ; NEW-ZEALAND ; KARST ; EVOLUTION ; CORROSION ; COASTAL ; HYDROCHEMISTRY ; CONDENSATION ; DENUDATION ; BASIN |
WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
WOS研究方向 | Physical Geography ; Geology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/187506 |
作者单位 | 1.Natl Res Council Italy, Inst Biometeorol, I-07100 Sassari, Italy; 2.Univ Bologna, Italian Inst Speleol, I-40127 Bologna, Italy; 3.Univ Almeria, Water Resources & Environm Geol Res Grp, Almeria 04120, Spain |
推荐引用方式 GB/T 7714 | Sanna, Laura,De Waele, Jo,Maria Calaforra, Jose,et al. Long-term erosion rate measurements in gypsum caves of Sorbas (SE Spain) by the Micro-Erosion Meter method[J],2015,228:213-225. |
APA | Sanna, Laura,De Waele, Jo,Maria Calaforra, Jose,&Forti, Paolo.(2015).Long-term erosion rate measurements in gypsum caves of Sorbas (SE Spain) by the Micro-Erosion Meter method.GEOMORPHOLOGY,228,213-225. |
MLA | Sanna, Laura,et al."Long-term erosion rate measurements in gypsum caves of Sorbas (SE Spain) by the Micro-Erosion Meter method".GEOMORPHOLOGY 228(2015):213-225. |
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