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Study of Zagros Karst Formation in relation to Quaternary Climatic Changes
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Hassan Jafari *   1, Frozan Naseri1 |
| 1- University of Zanjan |
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Abstract: (93 Views) |
| Natural evidence and evidence suggests that the past climatic conditions could not be as current as the present; many forms of land levels are not justified by current processes and their origin is attributed to different climatic conditions than the current climate. Karst forms, depending on the current climate, but due to being affected by temperature and water and their changes during the Quaternary, are usually palimpsest or polymorphic forms. Based on bibliographic texts and documents (geological maps 1: 50000, 30 * 30 digital elevation maps, 49 year olds database, satellite imagery and topographic maps 1: 50000), the data were collected to analyze the effects of climatic factors on Zagros karstic areas (Dolin, Strait, Canyon, Limestone Plots, Homes, Caves and Springs). The initial data was analyzed using software such as Arc GIS, Mapper Global, MATLAB and Excel. A large percentage of Zagros karstic forms are formed at temperatures ranging from 4 to 1 degree, precipitation is from 1017 to 1265 mm (Favorable climate) and temperatures ranging from -9 ° to -4 ° C, and precipitation ranges from 1265 to 1513 mm (very favorable climate) of the Quaternary. In the current situation, due to climate change and its favorable climate, temperatures of 5 to 10 degrees Celsius and precipitation of 583 to 726 mm and moderate climate with temperatures of 10 to 15 degrees and precipitation of 440 to 583 mm are evolving. Fewer percentages of climates in the climate are favorable to the climate, which is due to the fact that very low temperatures and cold weather impede the development of karst; the density of the karstic forms decreased from -9 ° to -4 ° C and the precipitation from 1265 to 1513 mm. |
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| Keywords: Limestone, Dolin, Home, Climate, Karst, Zagros |
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Full-Text [PDF 1616 kb]
(35 Downloads)
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Type of Study: Research |
Subject:
Special
Received: 2020/09/19 | Accepted: 2021/07/7 | Published: 2025/01/9
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