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The geomorphology of the Anthropocene : emergence, status and implications.

Brown, A.G. and Tooth, S. and Bullard, J.E. and Thomas, D.S.G. and Chiverrell, R.C. and Plater, A.J. and Murton, J. and Thorndycraft, V.R. and Tarolli, P. and Rose, J. and Wainwright, J. and Downs, P. and Aalto, R. (2017) 'The geomorphology of the Anthropocene : emergence, status and implications.', Earth surface processes and landforms., 42 (1). pp. 71-90.

Abstract

The Anthropocene is proposed as a new interval of geological time in which human influence on Earth and its geological record dominates over natural processes. A major challenge in demarcating the Anthropocene is that the balance between human-influenced and natural processes varies over spatial and temporal scales owing to the inherent variability of both human activities (as associated with culture and modes of development) and natural drivers (e.g. tectonic activity and sea level variation). Against this backdrop, we consider how geomorphology might contribute towards the Anthropocene debate focussing on human impact on aeolian, fluvial, cryospheric and coastal process domains, and how evidence of this impact is preserved in landforms and sedimentary records. We also consider the evidence for an explicitly anthropogenic geomorphology that includes artificial slopes and other human-created landforms. This provides the basis for discussing the theoretical and practical contributions that geomorphology can make to defining an Anthropocene stratigraphy. It is clear that the relevance of the Anthropocene concept varies considerably amongst different branches of geomorphology, depending on the history of human actions in different process domains. For example, evidence of human dominance is more widespread in fluvial and coastal records than in aeolian and cryospheric records, so geomorphologically the Anthropocene would inevitably comprise a highly diachronous lower boundary. Even to identify this lower boundary, research would need to focus on the disambiguation of human effects on geomorphological and sedimentological signatures. This would require robust data, derived from a combination of modelling and new empirical work rather than an arbitrary ‘war of possible boundaries’ associated with convenient, but disputed, `golden spikes’. Rather than being drawn into stratigraphical debates, the primary concern of geomorphology should be with the investigation of processes and landform development, so providing the underpinning science for the study of this time of critical geological transition.

Item Type:Article
Full text:(AM) Accepted Manuscript
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Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1002/esp.3943
Publisher statement:This is the accepted version of the following article: Brown, A.G., Tooth, S., Bullard, J.E., Thomas, D.S.G., Chiverrell, R.C., Plater, A.J., Murton, J., Thorndycraft, V.R., Tarolli, P., Rose, J., Wainwright, J., Downs, P. & Aalto, R. (2017). The Geomorphology of The Anthropocene: Emergence, Status and Implications. Earth Surface Processes and Landforms, 42(1): 71-90, which has been published in final form at https://doi.org/10.1002/esp.3943. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
Date accepted:14 March 2016
Date deposited:05 April 2016
Date of first online publication:01 June 2016
Date first made open access:01 June 2017

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