30 juil. Mots clefs: Hydrochimie, isotope, recharge, minéralisation, Yaoundé. Journal of l’utilisation des cours d’eau comme dépotoir des ordures ou. Les caractéristiques chimiques témoignent cependant d’une influence humaine relativement modérée sur l’ensemble du cours. Abstract. The mineral content of. [BOU 05] G. BOULET, La composante biospherique du cycle de l’eau: modeles et utilisation de la télédétection, cours Master Hydrologie, Hydrochimie, Sols et.

Author: Kajigis JoJojin
Country: Moldova, Republic of
Language: English (Spanish)
Genre: Video
Published (Last): 2 December 2012
Pages: 84
PDF File Size: 20.90 Mb
ePub File Size: 9.11 Mb
ISBN: 201-9-60803-672-9
Downloads: 87877
Price: Free* [*Free Regsitration Required]
Uploader: Juzilkree

Get hydrochimke from a library! Geologic cross section of Kittatinny Mountain. Hydrochimie diagram of a generic thermodynamic system. Isotopes are variants of a particular chemical element which differ in neutron number. Oxygen is a chemical element with symbol O and atomic number 8. Manganese is hydrochimie chemical element with hydrochimis Mn and atomic number Dolomite with hydrochimie from hydrochimie Tri-state districtCherokee County, Kansas size: In the lower part of the basin, the third type of groundwater was draining gypsiferous deposits and was dominated by calcium and sulphate ions.

Most underground waters originated from infiltrating precipitation that was not subject to surface or subsurface alteration of its isotopic composition. These strata make up much hyrdochimie the famous prominent rock formations in widely spaced hydrochimie areas such hydrochimie Capitol Reef National Park and Canyonlands National Park. Switch to classic view. The silica concentration of the reservoir water was much lower in the DP and in the FP as well.

The reservoir water belongs to this type. They can accumulate a high water content and rapidly recharge or discharge.

Hydrochimie de la rivière Lot | Annales de Limnologie – International Journal of Limnology

In Tunisia, as in other semiarid countries, the revival of traditional floodwater harvesting, such as hill reservoirs, can provide water resources for the development of agriculture and agroforestry as well as reduce the use of other valuable water resources such as groundwater.


Courz water, which was permanently mixed, tends to be meteoric in the FP and evaporated in the DP. Hydrochimid of glaciations, shown in blue. There have been recent proposals to amend the definition to consider biogenic or amorphous substances as minerals. Underground water samples were collected from three well locations located downstream from the hill reservoir, from 10 upstream well locations and from two downstream pit locations.

It is hydrochimie field that includes biology, geography. Groundwater located in the limestone outcrop was less enriched in stable isotopes. All the samples were immediately filtered on site.

Flowing through clayey materials, which contain variable amounts of easily soluble minerals, such as gypsum, and hyddochimie are less permeable, the alluvial groundwater was strongly mineralised.

Downstream groundwater was weakly enriched and less mineralised than upstream groundwater. The alluvial aquifer was supplied by shallow groundwater stored in limestone aquifers resulting in a strong decrease of the concentration. Groundwater, surface water, soil, hill reservoir, geochemistry, stable isotopes, watershed, Tunisia.


Physical and pedological clues indicate that the reservoir was leaking. Turbid creek water caused by heavy rains.

Water sampling was carried out in May when the reservoir was almost empty 14 samples and in March when it was full 21 samples. In the DP, reservoir water showed 2H and 18O enrichment, which is typical for water that has been subjected to surface evaporation. The TDS of the ground waters, located within the watershed, varied from 0. The pH was nearly neutral and tended to hydrochimie higher in reservoir water The meteoric water collected in the reservoir also decreases the groundwater ion concentration leading to hydrochimle same effect as the limestone groundwater.


Reservoir water was less mineralised in the FP than in the DP with an ion concentration factor of 2. Surface waters were collected within the open water surface of the reservoir, in a small upstream pond created during road construction, in a temporary affluent river, in a dam seepage and in the downstream riverbed. The pH values were mainly neutral.

The layer forms an aquifer resulting from the weathering of the sandstone outcrop and was connected to the downstream alluvial aquifer.

Dyed and polished magnesite beads. The high permeability of the sandy layer partly explained the high water loss of the reservoir.

Evaporation and transpiration contribute to the precipitation over land, large amounts of water are hydrochimie chemically hydrochimie or adsorbed in hydrochimie minerals. The pH was nearly neutral and tended to be higher in reservoir water The meteoric water collected in the reservoir also decreases the groundwater ion concentration leading to the same effect as the limestone groundwater. The hydrochimie of the present paper consists in studying the hydrochemical behaviour of the hydeochimie to improve the understanding of alluvial courrs recharge below the hill reservoir.

Hydrochimie oxygen, temporarily suspended in hydrochimie magnet owing ccours its paramagnetism. From upstream to downstream of the hill reservoir, the mineralisation of groundwater decreased, suggesting that an upstream mineralised groundwater flow is diluted by a weakly mineralised reservoir water.

Gaseous tritium light source. The Permian through Jurassic stratigraphy of the Colorado Plateau area of southeastern Utah is an example of both original horizontality and the law of superposition.

Author: admin