{"links":{"self":"http://dataportal.arc.gov.au/NCGP/API/grants/FT250100412"},"data":{"type":"grant-details","id":"FT250100412","attributes":{"code":"FT250100412","administering-organisation":"Adelaide University","announcement-administering-organisation":"The University of Adelaide","scheme-name":"ARC Future Fellowships","grant-status":"Active","funding-commencement-year":2025,"years-funded":4,"project-start-date":"2026-06-30","anticipated-end-date":"2030-06-29","grant-summary":"Habitability and resources: evolution of Earth’s silicate weathering system. The Earth's weathering system is the primary stabiliser of climate, inspiring geoengineering efforts to increase carbon dioxide (CO2) removal. A poorly known competing process, known as reverse weathering (RW), releases CO2 during marine authigenic clay formation. This potentially critical component of the carbon cycle remains largely unquantified. This research aims to employ new geochemical and geological tools to reveal, for the first time, how and why the extent of RW has changed over the past 1600 Ma. Expected outcomes will include improved constraints on i) the consequences of RW for CO2 removal via artificially enhanced weathering, and ii) the role that RW reactions play in the formation of marine critical mineral deposits.","funding-current":995188.00,"funding-at-announcement":974124,"investigators-current":[{"title":"Dr","firstName":"Stefan","familyName":"Loehr","roleName":"Future Fellowship","roleCode":"FT","isFellowship":true,"orcidIdentifier":"0000-0002-1242-552X "}],"investigators-at-announcement":[{"title":"Dr","firstName":"Stefan","familyName":"Loehr","roleName":"Future Fellowship","roleCode":"FT","isFellowship":true,"orcidIdentifier":"0000-0002-1242-552X "}],"organisations-current":[{"organisationName":"Adelaide University","roleName":"Administering Organisation","state":"SA"}],"organisations-at-announcement":[{"organisationName":"The University of Adelaide","roleName":"Administering Organisation","state":"SA"}],"field-of-research":[{"isPrimary":false,"code":"370303","name":"Isotope Geochemistry","type":"FOR20"},{"isPrimary":false,"code":"370504","name":"Marine Geoscience","type":"FOR20"},{"isPrimary":true,"code":"3799","name":"Other Earth Sciences","type":"FOR20"},{"isPrimary":false,"code":"379901","name":"Earth System Sciences","type":"FOR20"}],"socio-economic-objective":[{"code":"180506","name":"Oceanic Processes (Excl. In the Antarctic and Southern Ocean)","type":"SEO20"},{"code":"190301","name":"Climate Change Mitigation Strategies","type":"SEO20"},{"code":"280107","name":"Expanding Knowledge In the Earth Sciences","type":"SEO20"}],"international-collaboration":["Austria","Germany","India","Netherlands","United States of America"],"lief-register":[],"achievement-summary":null,"national-interest-test-statement":"Weathering of rocks and minerals consumes carbon dioxide and acts to stabilise Earth’s climate, inspiring attempts to increase carbon dioxide removal via artificially enhanced rock weathering. An important unknown is to what extent ‘reverse weathering’ reactions, which release carbon dioxide back to the atmosphere, counteract the effects of weathering and complicate climate mitigation efforts. These reactions also play a potentially important but poorly understood role in the formation of mineral deposits.\nThis project fills this knowledge gap, building on Australian-led innovation to reconstruct the evolution of Earth’s weathering system over the past 1600 million years. A combination of new tools will reveal, for the first time, how and why the prevalence of reverse weathering has changed over time. Together with targeted case studies, this will identify how reverse weathering i) impacts on the carbon dioxide-removal efficiency of artificially enhanced rock weathering, and ii) contributes to the formation of mineral deposits that are essential for a low carbon economy.\nThis work will provide new knowledge on the weathering system, inform geoengineering options to mitigate climate change and provide economic benefits by guiding Australian explorers searching for critical mineral deposits.Results will be disseminated to academic, industry and public sector stakeholders via tailored workshops, public presentations as well as print and digital media.\n"}}}