Ages for Opal at Cercle De Nioro Du Sahel, Kayes Region, Mali

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of Ma - Ma at this locality

• Locality age

• Excel ID	Max Age (Ma)	Min Age (Ma)	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	Dated Locality ID	Dated Locality	Ref	Ref ID
  Giersdorf_00000270	201	145		Epidote, Prehnite, Vesuvianite		27645	Sandaré, Arrondissement Sandaré, Commune Sandaré, Cercle De Nioro Du Sahel, Kayes Region, Mali	Johnson et al. (1995)	GG31_152
  sedcu-00515	560	560			Cu	228182	Niami, Commune Diaye Coura, Cercle De Nioro Du Sahel, Kayes Region, Mali	Cox et al. (2003)	USGSOFR03_107