Author: Edgar Aubert De La RüePublisher:
ISBN:
Category :
Languages : fr
Pages : 2
Book Description
Contribution à l'étude géologique de la Côte d'Ivoire
Author: Edgar Aubert De La RüePublisher:
ISBN:
Category :
Languages : fr
Pages : 2
Book Description
Contribution à l'étude géologique et hydrogéologique du Sud-Est de la Côte d'Ivoire (bassin versant de la Mé)
Author: Nagnin SoroContribution à l'étude géologique et hydrogéologique de la région du grand Abidjan (Côte d'Ivoire)
Author: Jean Roger Patrice JourdaPublisher:
ISBN:
Category :
Languages : fr
Pages : 319
Book Description
Lesrésultats des essais de pompages effectués, ainsi que la mesure directe de la perméabilité par essais d'infiltration sur le terrain ont permis de déterminer les caractéristiques hydrodynamiques (T, S et K) de la nappe du continental terminal et des aquifères fissurés du socle métamorphique. L'interprétation de l'évolution des niveaux piézométriques et des cartes piémométriques a permis de mettre en évidence les divers types d'écoulement et les zones d'alimentatin de la nappe du continental terminal du bassin sédimentaire. L'étude hydrochimique a montré que l'acidité de l'eau de la nappe du continental terminal est due à la présence d'ions hydrogène libérés lors d'échanges entre les eaux provenant du socle cristallin et les minéraux contenus dans les assises sédimentaires pauvres en cations.
Contribution à l'étude géologique du
Author: Applied Groundwater Studies in Africa
Author: Segun AdelanaPublisher: CRC Press
ISBN: 0415452732
Category : Science
Languages : en
Pages : 520
Book Description
Groundwater is Africa’s most precious natural resource, providing reliable water supplies for many people. Further development of groundwater resources is fundamental to increasing access to safe water across the continent to meet coverage targets and reduce poverty. There is also an increasing interest in the use of groundwater for irrigated agriculture as the climate becomes more variable. Sustainable development of the resource is not a trivial task and depends crucially on an understanding of the hydrogeology and people with the skills to make informed decisions on how groundwater can best be developed and managed in a sustainable fashion. Despite these obvious needs, however, little attention has been paid to the systematic gathering of information about groundwater resources in the past few decades, with the result that data are patchy, knowledge is limited and investment is poorly targeted. This book was written to start to bridge the knowledge gap. The 29 chapters are written by a combination of practitioners and researchers mainly from within Africa using experience from recent and ongoing projects. The chapters highlight the complexity and variety of issues surrounding the development and management of groundwater resources across Africa, and provide a snapshot of groundwater research and application in the early 21st century. Chapters range from strategic discussions of the role of groundwater in development and poverty reduction, to case studies on techniques used to develop groundwater, and modelling methods for managing groundwater systems.
Contribution a l'étude géologique du lutétien de la région de Louga
Author: Lucien HebrardHydrochemistry
Author: International Association of Hydrological Sciences. Scientific AssemblyPublisher: IAHS Press
ISBN: 9781901502251
Category : Salinization
Languages : en
Pages : 374
Book Description
Contribution à l'étude géologique du Congo français
Author: André AmstutzSupergene and Surficial Ore Deposits
Author: Bozzano G LuisaPublisher: Elsevier
ISBN: 0444598995
Category : Nature
Languages : en
Pages : 366
Book Description
Supergene and Surficial Ore Deposits; Textures and Fabrics is a collection of papers that deals with economic geological deposits, particularly as endogenic type, or as an integral part of their geological environment. One paper explores the possibility that the evolution of ores of sedimentary affiliation or of sedimentary rocks and their chemistry during geologic history can be a product of the evolution of the outer spheres of the earth combined with a cycling phenomena that proceeds in a spiral way. Another paper discusses the role of climate on a large range of depositional environments through mobilization, both by chemical and physical events, of metal-ions. Mobilization can also occur by controlled deposition and enrichment of the "mobilized" ions in a certain sedimentary environment. Various depositions occur in different climates, for example, bauxites, requiring higher precipitation levels, form in humid zones. One paper points that ore-mineral accumulations controlled by descending supergene solutions play a significant role in ore-mineral depositions. The collection is beneficial to geologists, industrial chemists, researchers, technical designers, and engineers whose works are related with ore deposits and mining.
Author: M. Stas