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Environment - Earth Sciences - 16.01.2020
Predicting hydraulic fracture propagation more accurately
Predicting hydraulic fracture propagation more accurately
Researchers at EPFL have developed a new model to calculate hydraulic fracture propagation. Acclaimed for its accuracy by experts, the model better predicts fracture geometry and the energy cost of hydraulic fracturing - a widely used technique in areas such as CO2 storage, hydrocarbon extraction, dams and volcano hazard monitoring.

Earth Sciences - 14.01.2020
No need to dig too deep to find gold!
No need to dig too deep to find gold!
A UNIGE researcher has discovered the particularities of porphyry copper and gold deposits, providing mining companies with a new tool to maximise the extraction of these two metals. Why are some porphyry deposits - formed by magmatic fluids in volcanic arcs - rich in copper while others primarily contain gold? In an attempt to answer this question, a researcher from the University of Geneva investigated how the metals are accumulated over the time duration of a mineralizing event, looking for a correlation between the amounts of copper and gold extracted from the deposits.

Environment - Earth Sciences - 09.01.2020
Improved Functioning of Diverse Landscape Mosaics
Improved Functioning of Diverse Landscape Mosaics
It is well-established that biodiverse ecosystems generally function better than monocultures. Ecologists at the University of Zurich have now shown that the same is true on a larger scale: Having a mix of different land-covers including grassland, forest, urban areas and water bodies improves the functioning and stability of a landscape - irrespective of the plant species diversity, region and climate.

Earth Sciences - Environment - 06.01.2020
Reducing human-induced earthquake risk
Reducing human-induced earthquake risk
Researchers at EPFL and the Swiss Federal Office of Energy have devised strategies for reducing the earthquake risk associated with geothermal energy, CO2 storage and other human activities happening deep underground. Although most earthquakes are attributable to natural causes, some are triggered - directly or indirectly - by human activity.