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The Use of Shallow Geophysics in Borrow Clayey Deposits Surveys in Northeast Brazil
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 12th International Congress of the Brazilian Geophysical Society, Aug 2011, cp-264-00138
Abstract
There is an increasing need for clayey material for the construction of mineral clayey liners in hazardous waste landfills due to fast growth of the Brazilian economy evidenced in the past few years. Since the great majority of the Brazilian industrial activity is concentrated along the Atlantic Ocean shore, there is a growing interest in the use of materials from the Barreiras Formation for this purpose. Assessing clayey subsurface deposits in the Barreiras Formation is not an easy task since different types of <br>materials are present in small depths. Their layers are not continuous and do not show the same thickness. The methodology presented and the results shown in this paper shows that is possible to couple borehole drilling with geophysics to overcome this difficulty. It was also revealed the benefits of using geostatistics in generating sections that could be compared to the results of geophysical surveys ratifying or rectifying the geological conceptual model.