@article {29478,
	title = {New constraints on mid-Proterozoic ocean redox from stable thallium isotope systematics of black shales},
	journal = {Geochimica et Cosmochimica Acta},
	volume = {315},
	year = {2021},
	pages = {185-206},
	author = {Z Li and DB Cole and SM Newby and JD Owens and B Kendall and CT Reinhard}
}