Geochimica et Cosmochimica Acta (GCA) publishes research papers in a wide range of subjects in terrestrial geochemistry, meteoritics, and planetary geochemistry. If you require any further information or help, please visit our Support Center Please see our Guide for Authors for information on article submission. Please click here for more information on our author services. If you would like more information about the Geochemical Society and Meteoritical Society, visit their Home Pages at and īenefits to authors We also provide many author benefits, such as free PDFs, a liberal copyright policy, special discounts on Elsevier publications and much more. Chemical processes in the atmosphere, hydrosphere, biosphere, and lithosphere of the Earth 4). Physical chemistry of gases, aqueous solutions, glasses, and crystalline solids 2). Geochimica et Cosmochimica Acta publishes research papers in a wide range of subjects in terrestrial geochemistry, meteoritics, and planetary geochemistry.