Large-Scale Mapping of Hard-Rock Aquifer Properties Applied to Burkina Faso

Nathalie Courtois; Patrick Lachassagne; Robert Wyns; Raymonde Blanchin; Francis D. Bougaiere; Sylvain Some; Aiessata Tapsoba

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Large-Scale Mapping of Hard-Rock Aquifer Properties Applied to Burkina Faso

机译：适用于布基纳法索的硬岩含水层性质的大规模映射

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A country-scale (1:1,000,000) methodology has been developed for hydrogeologic mapping of hard-rock aquifers (granitic and metamorphic rocks) of the type that underlie a large part of the African continent. The method is based on quantifying the "useful thickness" and hydrodynamic properties of such aquifers and uses a recent conceptual model developed for this hydrogeologic context. This model links hydrodynamic parameters (transmissivity, storativity) to lithology and the geometry of the various layers constituting a weathering profile. The country-scale hydrogeological mapping was implemented in Burkina Faso, where a recent 1:1,000,000-scale digital geological map and a database of some 16,000 water wells were used to evaluate the methodology.

机译：已经开发了一种国家规模（1：1,000,000）的方法，用于对非洲大陆大部分地区的硬岩含水层（碎屑岩和变质岩）进行水文地质测绘。该方法基于量化此类含水层的“有用厚度”和水动力特性，并使用针对该水文地质环境开发的最新概念模型。该模型将流体动力学参数（透射率，储能率）与岩性和构成风化剖面的各层几何联系起来。在布基纳法索实施了国家级水文地质制图，该地区最近使用了比例为1：1,000,000的数字地质图和约16,000口水井的数据库来评估该方法。

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《Ground water》 |2010年第2期|269-283|共15页
作者
Nathalie Courtois; Patrick Lachassagne; Robert Wyns; Raymonde Blanchin; Francis D. Bougaiere; Sylvain Some; Aiessata Tapsoba;
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Water Division, Hard Rock Aquifers Unit, Brgm (French Geological Survey), 1039 rue de Pinville, 34000 Montpellier, France;

Water Division, Hard Rock Aquifers Unit, Brgm (French Geological Survey), 1039 rue de Pinville, 34000 Montpellier, France Currently at Evian Volvic Sources - Danone Eaux France, 11 avenue du General Dupas, BP87, 74503 Evian Cedex, France;

Geolnformation Division, Modelling and Applications Unit, Brgm, Avenue Claude Guillemin, 45060 Orleans Cedex 02, France;

Mineral Resources Division, Brgm, Avenue Claude Guillemin, 45060 Orleans Cedex 02, France;

Directorate General for Water Resources, Ministry of Agriculture, Hydraulics, and Fisheries, 01 BP4167, Ouagadougou 01, Burkina Faso;

Office of Mines and Geology of Burkina Faso (Bumigeb), 01 BP601, Ouagadougou 01, Burkina Faso;

Office of Mines and Geology of Burkina Faso (Bumigeb), 01 BP601, Ouagadougou 01, Burkina Faso;

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Large-Scale Mapping of Hard-Rock Aquifer Properties Applied to Burkina Faso

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