Kalle Kirsimäe

Latest

• The Kaolinite Shuttle Links the Great Oxidation and Lomagundi Events
• Iron Isotopes Reveal a Benthic Iron Shuttle in the Palaeoproterozoic Zaonega Formation: Basinal Restriction, Euxinia, and the Effect on Global Palaeoredox Proxies
• Constraining the conditions of phosphogenesis: Stable isotope and trace element systematics of Recent Namibian phosphatic sediments
• Oxygenated conditions in the aftermath of the Lomagundi-Jatuli Event: The carbon isotope and rare earth element signatures of the Paleoproterozoic Zaonega Formation, Russia
• Identifying global vs. basinal controls on Paleoproterozoic organic carbon and sulfur isotope records
• Palaeoproterozoic oxygenated oceans following the Lomagundi–Jatuli Event
• REE+Y uptake and diagenesis in recent sedimentary apatites
• High-CO$\\_2$, acidic and oxygen-starved weathering at the Fennoscandian Shield at the Archean-Proterozoic transition
• Oxygenated oceans persisted after the Lomagundi Event: Evidence from the Zaonega Formation
• Multiple sulphur isotope records tracking basinal and global processes in the 1.98 Ga Zaonega Formation, NW Russia
• Authigenesis of biomorphic apatite particles from Benguela Upwelling Zone sediments off Namibia: The role of organic matter in sedimentary apatite nucleation and growth
• Trace metal enrichment in 1.98 Ga black shales of the Zaonega Formation
• Origin of rod and dumbbell shaped phosphate precipitates in Namibian Shelf sediments
• Apatitic micronodules in Namibian Shelf sediments: Mineralized microbes or diagenetic precipitates?
• Apatitic micronodules in Namibian shelf sediments: Mineralized microbes or diagenetic precipitates?
• Potential influence of sulphur bacteria on Palaeoproterozoic phosphogenesis