LECTURE on December 19th: ““Tephra! Linking Neanderthals to Magma Chambers” by Dr. Emma Tomlinson (TCD)
December 195:30 pm - 7:30 pm
PLEASE NOTE DATE CHANGE! LECTURE NOW ON 19TH DECEMBER!
Abstract: Volcanic ash (tephra) produced by explosive eruptions may be transported by wind and deposited thousands of kilometers from its source to form marker layers in time. These tephra layers may be used to link and to date geological, palaeoecological, palaeoclimatic, and archaeological sequences and events, including whether the transition from Neanderthals to anatomically modern human populations in Europe was driven by severe, volcanically induced, climatic cooling. More recently, tephra layers in sedimentary rocks have been used to reconstruct long-term changes in magma composition and volcanic eruption frequency, providing important insights into sub-volcanic magma reservoirs. This talk will examine some of the modern applications of tephra to answer
both sedimentological and magmatic questions.
Emma Tomlinson is Assistant Professor in Igneous Petrology at Trinity College Dublin. Emma obtained an MSci (Geology) from the University of Bristol (UK) and Ph.D in natural diamond formation at University College London (UK). Following 2 years at the NERC ICP facility, she was a postdoctoral researcher on the NERC-funded RESET tephrochronology project, which aimed to create a tephra lattice for the last 100ka in Europe. Since arriving at TCD in 2012, Emma has pursued a range of research interests, including mantle petrology, magma geochemistry and
When and where: The lecture theatre in the Geological Survey of Ireland, Beggars Bush,
Dublin 4 on Wednesday, 12 December 2018, between 6:30 and 7:30 pm. Coffee and
biscuits will available from 5:30 pm. All welcome.