Volume 11, Issue 1 (Spring & Summer 2025)
KJES 2025, 11(1): 131-151 |
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Kalantari N, Pourakbari S, Moradieghad T. Identifying the recharge sources of important karst springs in Kohgiluyeh and BoyerAhmad provinces using stable isotopes of oxygen 18 and deuterium. KJES 2025; 11 (1) :131-151
URL: http://gnf.khu.ac.ir/article-1-2943-en.html
URL: http://gnf.khu.ac.ir/article-1-2943-en.html
1- University of Shahid Chamran
2- University of Shahid Chamran ,sajadakbari66@gmail.com
2- University of Shahid Chamran ,
Abstract: (224 Views)
| The karst springs of Belqis and Siah are among the abundant springs of Kohgiluyeh and BoyerAhmad provinces that are discharged from the Asmari limestones of the Lar anticline. The protruding surface of the Asmari limestones of the anticline is not proportional to the volume of water discharged from these springs. Based on the summary balance and hydrograph of the springs discharge, there are important water sources in the study area (including the Nile anticline) that can interfere with the recharge of the mentioned springs. Therefore, to evaluate this issue, the value of stable isotopes of oxygen (18O) and hydrogen (2H) of all water sources in the target area (discharge) and in the recharge area was determined for two periods (May 2023 and May 2024). Then, using these isotopic results and the local watershed line (LMWL), the source of recharge of the springs in the target area was investigated, and the height of the recharge area and the possible recharge share of these springs from the water sources in the area were determined. The results showed that the elevation of the recharge area of the springs in the target area corresponds to their elevation in the Nile karst anticline. However, the share of water received by the Siah Spring is slightly higher compared to the water received by the Belqis Spring from the Nile anticline. |
Type of Study: Original Research |
Subject:
Hydrogeology
Received: 2025/05/20 | Accepted: 2025/07/15 | Published: 2025/08/25
Received: 2025/05/20 | Accepted: 2025/07/15 | Published: 2025/08/25
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