Supplement_for_HOL_777075 – Supplemental material for Growth of desert varnish on petroglyphs from Jubbah and Shuwaymis, Ha’il region, Saudi Arabia

Supplemental material, Supplement_for_HOL_777075 for Growth of desert varnish on petroglyphs from Jubbah and Shuwaymis, Ha’il region, Saudi Arabia by Dorothea S Macholdt, Abdullah M Al-Amri, Husam T Tuffaha, Klaus Peter Jochum and Meinrat O Andreae in The Holocene