Facebook Instagram Twitter RSS Feed PodBean Back to top on side

Fracture zones detection for groundwater exploration integrating Resistivity Profiling and Very Low Frequency electromagnetic methods (Errachidia basin, Morocco)

In: Contributions to Geophysics and Geodesy, vol. 49, no. 2
Youssef Ait Bahammou - Ahmed Benamara - Abdellah Ammar - Ibrahim Dakir
Detaily:
Rok, strany: 2019, 181 - 194
Jazyk: eng
Kľúčové slová:
Errachidia basin, fracture zone, Resistivity, Very Low Frequency, data filtering, groundwater exploration
O článku:
Resistivity Profiling and Very Low Frequency (VLF) electromagnetic methods were introduced to study fracture zones detection in Zaouia Jdida locality, within the Errachidia basin. The Horizontal Profiling was conducted in Wenner-α array, with AB = 300 m and profile lines oriented NW–SE and NE–SW. The resistivity measurements were taken using MAE advanced geophysics instruments. The VLF profiles were implanted with the length reaches 1000 m and profile lines oriented in NE–SW direction. The VLF measurements were collected using T-VLF iris instrument and the data filtering was done using KHFFILT software. Two filters, Karous-Hjelt and Fraser, were applied to the real component of the secondary electromagnetic field. The qualitative interpretation of resistivity results, showed the presence of subsurface targets; fracture zones were detected at 70 m, 240 m and 450 m positions along the profile P1, at 180 m, 340 m and 450 m positions from the profile P2. The semi-quantitative interpretation of VLF results revealed the presence of two principal fracture zones at L3 and L5 locations, oriented NW–SE, at a depth range of 30 m to 60 m. The VLF anomaly observed at L3 location is confirmed by the resistivity measurements from the profile P1 (at 70 m station). The identified fractures represent the potential zones for groundwater supply and then will have an implication on storage and movement of groundwater in the prospect area.

Download Fulltext
Ako citovať:
ISO 690:
Ait Bahammou, Y., Benamara, A., Ammar, A., Dakir, I. 2019. Fracture zones detection for groundwater exploration integrating Resistivity Profiling and Very Low Frequency electromagnetic methods (Errachidia basin, Morocco). In Contributions to Geophysics and Geodesy, vol. 49, no.2, pp. 181-194. 1338-0540. DOI: https://doi.org/10.2478/congeo-2019-0009

APA:
Ait Bahammou, Y., Benamara, A., Ammar, A., Dakir, I. (2019). Fracture zones detection for groundwater exploration integrating Resistivity Profiling and Very Low Frequency electromagnetic methods (Errachidia basin, Morocco). Contributions to Geophysics and Geodesy, 49(2), 181-194. 1338-0540. DOI: https://doi.org/10.2478/congeo-2019-0009
O vydaní:
Publikované: 30. 6. 2019