Showing papers on "Environmental isotopes published in 1975"
TL;DR: In the past 25 years a new branch of research has developed under the name "stable isotope geochemistry" and its importance within the earth sciences has steadily increased as discussed by the authors, and the present progress report considers the scope and also the limitations, of this discipline.
Abstract: During the past 25 years a new branch of research has developed under the name “stable isotope geochemistry”, and its importance within the earth sciences has steadily increased. The present progress report considers the scope, and also the limitations, of this discipline.
90 citations
01 Apr 1975
11 citations
TL;DR: The highlights of the IAEA Symposium on Isotope Techniques in Groundwater Hydrology are presented in this article, where a major part of the discussions were concerned with environmental isotopes in studies of the infiltration process, origin and flow of groundwater and geothermal systems.
7 citations
01 Jan 1975
TL;DR: In this article, the authors investigated the environmental impact of the Brasimone site in the upper reaches of the Reno River, where a nuclear research plant is under construction, and showed that there is a risk of contamination of Reno River water by radioactive wastes.
Abstract: This research is part of the investigations carried out to assess the environmental impact of the Brasimone site in the upper reaches of the Reno River, where a nuclear research plant is under construction This plant might imply a risk of contamination of the Reno River water by radioactive wastes Environmental isotope techniques were used to study the interconnections between the Reno River and groundwater and qualitatively to define the flow dynamics between the surface waters and groundwater in the area of Bologna The Reno River flows across an aquifer consisting of an irregular succession of alluvial beds of sandy gravel, sands and clayey or sandy silts of varying thicknesses At the two pumping stations of Borgo Panigale and Tiro a Segno, the tritium and $sup 14$C contents of the groundwater regularly decrease with increasing distance from the Reno River This indicates that there is a contribution of recent water recharged from the river, and that such a contribution decreases as the distance from the river increases For equal distances, the river contribution is higher in Borgo Panigale than in Tiro a Segno At the pumping stations of San Vitale di Reno, only recently put into operation and at amore » distance from the river greater than that of the other two stations, there is no indication of recharge of recent river water Stable isotopes also show a slight variation with the distance from the river, in agreement with the fact that deep groundwater is a mixture of variable proportions of two components, one of them originating from the river All these results were possible to achieve only by means of environmental isotope techniques (auth)« less
6 citations