12,000

We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK

93%

93% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > Geomagnetic and mineral magnetic characterizati...
View graph of relations

« Back

Geomagnetic and mineral magnetic characterization of the Anthropocene

Research output: Contribution in Book/Report/ProceedingsChapter (peer-reviewed)

Published

Publication date2014
Host publicationA stratigraphical basis for the Anthropocene
EditorsColin Waters, J. A. Zalasiewicz, M. Williams, M. A. Ellis, A. M. Snelling
Place of publicationLondon
PublisherGeological Society of London Special Publication
Pages119-141
Number of pages23
Volume395
ISBN (Print)9781862396289
Original languageEnglish

Publication series

NameGeological Society, London, Special Publication
PublisherGeological Society
Volume395

Abstract

Geomagnetic and mineral magnetic data provide geological indices that are both independent of human impact (i.e. geomagnetic) and respond to human-induced environmental impact (i.e. mineral magnetic data). We provide the first discussion of such magnetic events for help in defining the Anthropocene. Within the Holocene, a potential geomagnetic marker for the Anthropocene is the low dipole latitude at c. 2700 cal a BP, which is associated with distinct palaeosecular variation features in northerly mid- to high-latitude sites. Mineral magnetic records from lake and marine sediments identify major deforestation and soil delivery events from catchment systems in many parts of the world during the last 4000 years. In Europe, clusters of these events occur around both 2600 cal a BP and AD 1100, the former coinciding with a low in geomagnetic field dipole
latitude and peak intensity. Mineral magnetic records in peats and lake sediments can reflect particulate pollution from fossil fuel burning. The expansion of major coal burning began c. AD 1800 in western Europe and eastern North America, but around AD 1900 this expanded due to more widely distributed coal use, and this event is the most clear mineral magnetic marker for the base of the Anthropocene.