Supplemental code on brownfield mines (2025, One Earth)

This code was developed to support research on the rise of brownfield mining published in One Earth. It contains R code required to reproduce figures for the research article by Kemp, D., Loginova, J., Lechner, A.M., Ang, M.L.E., Kuswati, R.A., Saputra, M.R.U., Unger, C., Bebbington, A., Owen, J.R. (2025) One Earth. The code requires the related dataset (doi: 10.48610/207ff37).本代码用于支撑发表于《One Earth》的棕地采矿（brownfield mining）兴起相关研究。本代码包含复现Kemp、D.、Loginova、J.、Lechner、A.M.、Ang、M.L.E.、Kuswati、R.A.、Saputra、M.R.U.、Unger、C.、Bebbington、A.、Owen、J.R.（2025）发表于《One Earth》的研究论文所需图表的R代码。本代码依赖关联数据集（DOI: 10.48610/207ff37）。