Contribution of Geophysics to the Study of Barite Mineralization in the Paleozoic Formations of Asdaf Tinejdad (Eastern Anti Atlas Morocco)

• 발행기관: 대한자원환경지질학회
• 저자명: Dakir Ibrahim Benamara Ahmed Aassoumi Habiba Ouallali Abdessalam Ait Bahammou Youssef
• 간행물 정보: 『자원환경지질』53권 3호, 259~269쪽, 전체 11쪽
• 주제분류: 자연과학 > 지질학
• 파일형태: PDF
• 발행일자: 2020.06.30

영문 초록

The use of the geophysical method in mining prospecting has been studied in the Asdaf region (South-East of Morocco). The objective of the study is to examine the aptitude of the electrical technique, in this case induced polarization (IP) and electric tomography, combined with the electromagnetic method (VLF), in the exploration of barite . The result obtained by the pseudo-sections of electrical tomography and that of KH filtration highlighted anomalies of resistant contact (greater than 400Ω.m) and of high charge chargeability (5mV / V). These contacts are hosted in less resistant Devonian age shale and sandstone. The resistivity response obtained at their level is characteristic of the venous structures associated with barite mineralization. The direction of the mineralized veins is parallel to the direction of the fractured zones (NE-SW), which indicates that the mineralization in place is due to the tectonic movements of the Hercynian orogeny (from Devonian to Permian). These veins are aligned with the locations of abandoned mine shafts and with surface mining areas. Geophysical technique therefore seems to play a key role in barite mining exploration.

목차

1. Introduction

2. Geological Context

3. Methodology

4. Results and Discussion

5. Conclusion

Conflict of Interest Statement

Data Availability

Disclosure

References

키워드

electrical method electromagnetic method Eastern Anti Atlas Paleozoic resistant anomaly mineralized veins barite