GEOHYDROLOGIC WELL-LOGGING

Well-logs have been used to gain geohydrologic information mainly in Precambrian rocks. The logs used are the self-potential, the diameter, the temperature, and the electric conductivity of water. Applications have given general information on the occurrence of ground water in hard rocks. The logging technique seems to be of particular value in connection with underground constructions in rock when detailed local information is necessary in order to avoid ground water leakage even in minor quantities.

Download Full-text

GROUND WATER INVESTIGATION IN GNEISSIAN ROCK, SYSTEMATIC STUDY OF A SMALL AREA

Hydrology Research ◽

10.2166/nh.1972.0009 ◽

1972 ◽

Vol 3 (3) ◽

pp. 130-139

Author(s):

I. LARSSON ◽

T. LUNDGREN ◽

Y. GUSTAFSSON

Keyword(s):

Drinking Water ◽

Ground Water ◽

Electric Conductivity ◽

Systematic Study ◽

Small Area ◽

Well Logging ◽

Groundwater Temperature ◽

Hard Rocks ◽

Self Potential ◽

Groundwater Prospecting

Careful investigations should precede drillings in hard rocks for drinking water. A description is given of a method for groundwater prospecting in hard rocks which integrates studies of petrography, tectonics, and groundwater chemistry with well-logging of well diameter, self-potential, electric conductivity, and groundwater temperature.

Download Full-text

GPR WATER LEAKAGE DETECTION DURING BUILDING AND EXPLOITATION OF UNDERGROUND CONSTRUCTIONS

MINING INFORMATIONAL AND ANALYTICAL BULLETIN ◽

10.25018/0236-1493-2017-7-0-161-167 ◽

2017 ◽

Vol 7 ◽

pp. 161-167

Author(s):

V.V. Nabatov ◽

◽

R.M. Gaysin ◽

P.V. Nikolenko ◽

◽

...

Keyword(s):

Leakage Detection ◽

Water Leakage ◽

Water Leakage Detection ◽

Underground Constructions

Download Full-text

Mapping the Pollution Plume Using the Self-Potential Geophysical Method: Case of Oum Azza Landfill, Rabat, Morocco

Water ◽

10.3390/w13070961 ◽

2021 ◽

Vol 13 (7) ◽

pp. 961

Author(s):

Meryem Touzani ◽

Ismail Mohsine ◽

Jamila Ouardi ◽

Ilias Kacimi ◽

Moad Morarech ◽

...

Keyword(s):

Electrical Conductivity ◽

Water Table ◽

Soil Surface ◽

The Self ◽

Drainage Network ◽

Geophysical Method ◽

Direct Measurements ◽

Sandy Material ◽

The City ◽

Self Potential

The main landfill in the city of Rabat (Morocco) is based on sandy material containing the shallow Mio-Pliocene aquifer. The presence of a pollution plume is likely, but its extent is not known. Measurements of spontaneous potential (SP) from the soil surface were cross-referenced with direct measurements of the water table and leachates (pH, redox potential, electrical conductivity) according to the available accesses, as well as with an analysis of the landscape and the water table flows. With a few precautions during data acquisition on this resistive terrain, the results made it possible to separate the electrokinetic (~30%) and electrochemical (~70%) components responsible for the range of potentials observed (70 mV). The plume is detected in the hydrogeological downstream of the discharge, but is captured by the natural drainage network and does not extend further under the hills.

Download Full-text