Using groundwater age to understand flow in the vicinity of open pit mines, northwest Australia

 AHLeGall    18/06/2019 : 21:55



Le mardi 18 juin 2019 à 11:00, en salle de conf de l'OSUR (campus de Beaulieu, bât.14B), Peter Cook propose un séminaire intitulé "Using groundwater age to understand flow in the vicinity of open pit mines, northwest Australia"

Cette présentation est proposée dans le cadre du cycle des séminaires de Géosciences Rennes et OSUR

Bio : Professor Peter Cook is internationally recognized for his research on environmental tracers, and their use to study groundwater flow and transport. He has co-written books on environmental tracers and ecohydrology, and has published more than 100 research papers in leading international journals. He was the National Ground Water Association’s Henry Darcy Distinguished Lecturer in Ground Water Science in 2009, the first time this honour was awarded to a scientist from outside North America. Between 2009 and 2014 he was Deputy Director of the Australian National Centre for Groundwater Research and Training (NCGRT).

Abstract : Open pit iron ore mines in the Pilbara region of northwest Australia require dewatering to create dry mining environments. Excess water is discharged to ephemeral creeks, and environmental tracers are being used to investigate the impacts of mine dewatering and the fate of mine water discharge. This talk will cover three aspects of environmental tracer studies in the Pilbara region: 1) Use of 3H, CFCs and 14C to distinguish between ambient groundwater and excess mine water that infiltrates after being discharged to creeks; 2) Intra-bore flow in long-screened wells – problems with contamination and methods for sampling these wells; and 3) Generic modelling studies to understand the role of hydraulic barriers (dykes and faults) on groundwater ages.


Contact OSUR :
Camille Bouchez (Géosciences Rennes) / @