About the Authors

Fabio Carvalho

Contributed equally to this work with: Fabio Carvalho, Kerry A. Brown, Martyn P. Waller, M. Jane Bunting

Roles Formal analysis, Investigation, Writing – original draft, Writing – review & editing

fabiocgs@yahoo.com

Affiliation Department of Geography and Geology, Kingston University London, Kingston upon Thames, United Kingdom

Kerry A. Brown

Contributed equally to this work with: Fabio Carvalho, Kerry A. Brown, Martyn P. Waller, M. Jane Bunting

Roles Conceptualization, Investigation, Methodology, Supervision, Writing – review & editing

Affiliation Department of Geography and Geology, Kingston University London, Kingston upon Thames, United Kingdom

Martyn P. Waller

Contributed equally to this work with: Fabio Carvalho, Kerry A. Brown, Martyn P. Waller, M. Jane Bunting

Roles Conceptualization, Investigation, Methodology, Supervision, Writing – review & editing

Affiliation Department of Geography and Geology, Kingston University London, Kingston upon Thames, United Kingdom

M. Jane Bunting

Contributed equally to this work with: Fabio Carvalho, Kerry A. Brown, Martyn P. Waller, M. Jane Bunting

Roles Formal analysis, Methodology, Writing – review & editing

Affiliation School of Environmental Sciences, University of Hull, Hull, United Kingdom

Arnoud Boom

Roles Investigation, Writing – review & editing

‡ These authors also contributed equally to this work.

Affiliation School of Geography, Geology and the Environment, University of Leicester, Leicester, United Kingdom

Melanie J. Leng

Roles Investigation, Writing – review & editing

‡ These authors also contributed equally to this work.

Affiliations NERC Isotope Geosciences Laboratory, British Geological Survey, Nottingham, United Kingdom, Centre for Environmental Geochemistry, School of Biosciences, University of Nottingham, Loughborough, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.