High-resolution marine osmium and carbon isotopic record across the Aptian–Albian boundary in the southern South Atlantic: Evidence for enhanced continental weathering and ocean acidification. - Matsumoto, Hironao; Shirai, Kotaro; Huber, Brian T.; MacLeod, Kenneth G.; Kuroda, Junichiro (Palaeogeography, Palaeoclimatology, Palaeoecology, 2023)