Tephrochronology, geochronology, volcanology and igneous petrology
My research focuses on the composition of the volcanic deposits (tephra) associated with large explosive eruptions. The composition of the tephra (glass and minerals) provides a chemical fingerprint that allows these layers to be correlated to other deposits of the same eruption. These layers are ideal for providing relative chronology within sedimentary archives (archaeological and palaeoenvironmental records), and they can also be used for absolute chronology if they can be dated using radiometric (typically radiocarbon or Ar/Ar) methods. I also use the composition of the eruption deposits to further understand magmatic processes.
MSc Archaeological Science course coordinator.
Primary Geographic Area
Japan, Italy (Campi Flegrei) and Mexico City
Co-Investigator on a NERC funded project titled Apatite as a quantitative tool for tephrochonology and magmatic evolution (2013-2015) with Madeleine Humpryes (Earth Sciences, University of Durham; PI) and Richard Brooker (Earth Sciences, University of Bristol; Co-I).
Sole investigator on a Fell funded project titled Volcanic ash layers in the Chalco Basin sediments: a temporal record of volcanic activity in Mexico City and the key to obtaining a chronology for an important high-resolution palaeoclimatic record (2013-2014) which is employing Paul Albert (postdoctoral researcher) for a year.
Constructing a detailed Ar-Ar chronology for volcanic activity from Campi Flegrei, Italy with Darren Mark (Argon isotope laboratory, SUERC), Roberto Isaia (Vesuvius Observatory, INGV), and Antony Hinchliffe (PhD student based at SUERC).
Tephrochronology of the Lake Suigetsu SG06 archive from Japan