{"title":"在东非大裂谷国家的结晶基底和火山岩地区利用地球物理方法调查地下水资源:综述","authors":"","doi":"10.1016/j.jafrearsci.2024.105432","DOIUrl":null,"url":null,"abstract":"<div><div>The East African Rift Valley (EARV) is characterized by diverse geology, including crystalline, volcanic, and metamorphic rocks, shaped by tectonic activity leading to complex faulting and fractured zones. These fractured zones in hard rock serve as crucial groundwater reservoirs, often explored using electric resistivity methods. Countries surrounding the EARV, such as Burundi, Djibouti, the DR Congo, Eritrea, Ethiopia, Kenya, Malawi, Mozambique, Rwanda, Tanzania, Uganda, and Zambia, share similar geological features linked to the rift system. Groundwater investigation in these regions, particularly using geo-electric resistivity methods, is essential for understanding subsurface geology, potential aquifers, and structural features, additionally, water quality, and dominant water sources of these countries are reviewed to categorize twelve countries based on the availability of the groundwater investigations and country status. The review results highlight some countries rely on weathered and fractured basement aquifers concentrated in specific areas, while others utilize aquifers associated with various geological settings and surface water as alternative sources due to the limited yield from basement complex aquifers. Therefore, 12 countries were classified broadly into three types, and a resistivity distribution map was created to visually show the present status of research and development works of the existence of gaps and limitations, which is generally in line with this comprehensive review. The outcomes of this study are useful for future research and sustainable development by informing the resistivity distribution trend and water resource usage in each country, as a result, expecting to contribute to the effective utilization of groundwater resources in the challenging crystalline basement and volcanic rock environments of the region.</div></div>","PeriodicalId":14874,"journal":{"name":"Journal of African Earth Sciences","volume":null,"pages":null},"PeriodicalIF":2.2000,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Groundwater resources investigation using geophysical method in crystalline basement and volcanic rock regions of countries belonging to the East African Rift Valley: A review\",\"authors\":\"\",\"doi\":\"10.1016/j.jafrearsci.2024.105432\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The East African Rift Valley (EARV) is characterized by diverse geology, including crystalline, volcanic, and metamorphic rocks, shaped by tectonic activity leading to complex faulting and fractured zones. These fractured zones in hard rock serve as crucial groundwater reservoirs, often explored using electric resistivity methods. Countries surrounding the EARV, such as Burundi, Djibouti, the DR Congo, Eritrea, Ethiopia, Kenya, Malawi, Mozambique, Rwanda, Tanzania, Uganda, and Zambia, share similar geological features linked to the rift system. Groundwater investigation in these regions, particularly using geo-electric resistivity methods, is essential for understanding subsurface geology, potential aquifers, and structural features, additionally, water quality, and dominant water sources of these countries are reviewed to categorize twelve countries based on the availability of the groundwater investigations and country status. The review results highlight some countries rely on weathered and fractured basement aquifers concentrated in specific areas, while others utilize aquifers associated with various geological settings and surface water as alternative sources due to the limited yield from basement complex aquifers. Therefore, 12 countries were classified broadly into three types, and a resistivity distribution map was created to visually show the present status of research and development works of the existence of gaps and limitations, which is generally in line with this comprehensive review. The outcomes of this study are useful for future research and sustainable development by informing the resistivity distribution trend and water resource usage in each country, as a result, expecting to contribute to the effective utilization of groundwater resources in the challenging crystalline basement and volcanic rock environments of the region.</div></div>\",\"PeriodicalId\":14874,\"journal\":{\"name\":\"Journal of African Earth Sciences\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.2000,\"publicationDate\":\"2024-09-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of African Earth Sciences\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1464343X24002656\",\"RegionNum\":4,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"GEOSCIENCES, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of African Earth Sciences","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1464343X24002656","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"GEOSCIENCES, MULTIDISCIPLINARY","Score":null,"Total":0}
Groundwater resources investigation using geophysical method in crystalline basement and volcanic rock regions of countries belonging to the East African Rift Valley: A review
The East African Rift Valley (EARV) is characterized by diverse geology, including crystalline, volcanic, and metamorphic rocks, shaped by tectonic activity leading to complex faulting and fractured zones. These fractured zones in hard rock serve as crucial groundwater reservoirs, often explored using electric resistivity methods. Countries surrounding the EARV, such as Burundi, Djibouti, the DR Congo, Eritrea, Ethiopia, Kenya, Malawi, Mozambique, Rwanda, Tanzania, Uganda, and Zambia, share similar geological features linked to the rift system. Groundwater investigation in these regions, particularly using geo-electric resistivity methods, is essential for understanding subsurface geology, potential aquifers, and structural features, additionally, water quality, and dominant water sources of these countries are reviewed to categorize twelve countries based on the availability of the groundwater investigations and country status. The review results highlight some countries rely on weathered and fractured basement aquifers concentrated in specific areas, while others utilize aquifers associated with various geological settings and surface water as alternative sources due to the limited yield from basement complex aquifers. Therefore, 12 countries were classified broadly into three types, and a resistivity distribution map was created to visually show the present status of research and development works of the existence of gaps and limitations, which is generally in line with this comprehensive review. The outcomes of this study are useful for future research and sustainable development by informing the resistivity distribution trend and water resource usage in each country, as a result, expecting to contribute to the effective utilization of groundwater resources in the challenging crystalline basement and volcanic rock environments of the region.
期刊介绍:
The Journal of African Earth Sciences sees itself as the prime geological journal for all aspects of the Earth Sciences about the African plate. Papers dealing with peripheral areas are welcome if they demonstrate a tight link with Africa.
The Journal publishes high quality, peer-reviewed scientific papers. It is devoted primarily to research papers but short communications relating to new developments of broad interest, reviews and book reviews will also be considered. Papers must have international appeal and should present work of more regional than local significance and dealing with well identified and justified scientific questions. Specialised technical papers, analytical or exploration reports must be avoided. Papers on applied geology should preferably be linked to such core disciplines and must be addressed to a more general geoscientific audience.