Results from geospatial analysis of resistivity to delineate contamination anomalies: A case study of a Controlled Dump - North Portugal

• Type: Article in International Conference Proceedings Book
• Date: 2012

Authors

Rui Moura (Author) FCUP; Maria João Fontoura (Author) Other; Vitor Goncalves (Author) Other; Paulo Dias (Author) Other; Beatriz Sousa Santos (Author) Other; Antonio Guerner Dias (Author) FCUP; Marques, JM (Author) FCUP

Conference proceedings International

Title: Proceedings of the Symposium on the Application of Geophyics to Engineering and Environmental Problems, SAGEEP

Pages: 534-542

25th Symposium on the Application of Geophysics to Engineering and Environmental Problems 2012, SAGEEP 2012

Tucson, AZ, 25 March 2012 through 29 March 2012

Indexing

ISI Web of Knowledge

Scopus - 2 Citations

Other information

Authenticus ID: P-008-6P6

DOI: 10.4133/1.4721868

Abstract (EN): The assessment of contaminant dispersion in Controlled Dumps (CD) of Municipal Solid Waste (MSW) is possible through the combination of geophysical, geochemical and statistical methods. The methodology applied in this study will contribute to evaluate the environmental consequences of the Matosinhos CD (N Portugal), which is set in a granitic crystalline geological context with a permeability controlled by differential weathering which, in turn, is associated with fracturing. The statistical methods that we will describe are usually used in geochemical anomaly determination and were adapted to be used with resistivity data obtained from twenty-two 2D profiles performed around the CD. The data set was inverted and the results were processed and visualized by a 3D software application that we are currently developing. Groundwater samples were also collected in piezometers, upstream and downstream of the CD, with the aim of directly confirming the presence of contaminants indirectly detected by the geophysical and geostatistical methods described before. The combination of these different approaches allows, in our opinion, an improved approach towards the detection and delineation of contaminant plumes from these deposits.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9