is a Quaternary
palaeoecologist whose research interests currently include: (1) the use of stable isotope geochemistry to help determine the climatic histories of lake basins; (2) the analysis of changes in Quaternary palaeobiogeographical patterns of selected invertebrate faunal groups, particularly around the Mediterranean; and (3) the relationship between rapid-scale climatic change and societal collapse in the Andean highlands of Peru. He is a member of the ISOMED working group, involved in the analysis and synthesis of Mediterranean isotopic climatic records; he is also a founding member of the ECCUZ working group, concerned with examining the links between Late Holocene environmental and cultural change in the Cuzco region of Peru. In conjunction with Alex Chepstow-Lusy and Brian Bauer, Frogley unveiled "a new approach" to the problem of detailing Incan history by using the evidence deposited by Oribatid mites.
Frogley graduated from Kingston University
in 1993 with a BSc (Hons) in Geology. His doctoral research, carried out at the University of Cambridge
(1993-97), was primarily concerned with the multi-proxy analysis of a long (319m, half a million year-old) sedimentary sequence from the Ioannina lake basin in NW Greece.
On gaining a Research Fellowship in Earth Sciences
at St John's College, Cambridge
(1996-2000), his post-doctoral work continued these investigations, focusing in particular on the character of climatic variability in the Eastern Mediterranean
during the last interglacial period (Marine Isotope Stage 5e).
He joined the University of Sussex
in October 2000 as a Lecturer in Physical Geography and has since been extending the geographical range of his research by looking at Late Holocene lake sites in Peru. He became Senior Lecturer in October 2005.