Funding for this research was provided by:
UK Department for International Development (DFID) / Natural Environment Research Council (NE/M019985/1, NE/M020452/1)
Text and Data Mining valid from 2019-07-29
Received: 18 July 2018
Accepted: 10 July 2019
First Online: 29 July 2019
Compliance with ethical standards
: The views expressed do not necessarily reflect the UK Government’s official policies. BGS authors publish with the permission of the Executive Director of the British Geological Survey (BGS-UKRI).