TY - GEN N2 - Vera Rubin ridge (VRR), located in Gale crater, Mars, contains coarse-grained (>3-5 µm) gray hematite particles. VRR likely experienced multiple episodes of diagenesis in its past, some of which may have formed gray hematite from existing iron(III) minerals. The precursor mineralogy and diagenetic fluid conditions, however, are unknown. Experiments were performed on several iron(III) minerals (akaganeite, ferrihydrite, goethite, red hematite, jarosite, and schwertmannite) to simulate transformations in diagenetic fluid conditions. The solid transformation products were analyzed via powder X-ray diffraction, visible to near-infrared reflectance spectroscopy, and scanning electron microscopy. The compositions of the final fluids were determined via inductively-coupled plasma optical emission spectrometry. Final pH values of the fluid products were measured as well. DO - 10.7936/6rxs-103632 DO - doi AB - Vera Rubin ridge (VRR), located in Gale crater, Mars, contains coarse-grained (>3-5 µm) gray hematite particles. VRR likely experienced multiple episodes of diagenesis in its past, some of which may have formed gray hematite from existing iron(III) minerals. The precursor mineralogy and diagenetic fluid conditions, however, are unknown. Experiments were performed on several iron(III) minerals (akaganeite, ferrihydrite, goethite, red hematite, jarosite, and schwertmannite) to simulate transformations in diagenetic fluid conditions. The solid transformation products were analyzed via powder X-ray diffraction, visible to near-infrared reflectance spectroscopy, and scanning electron microscopy. The compositions of the final fluids were determined via inductively-coupled plasma optical emission spectrometry. Final pH values of the fluid products were measured as well. AD - Washington University in St. Louis AD - Stony Brook University AD - Washington University in St. Louis T1 - Mineral Products and Fluid Compositions From the Transformations of Iron(III) Minerals in Mars-Relevant Fluids ED - WashU Institute of Materials Science and Engineering ED - Arvidson, Raymond ED - Carpenter, Paul ED - Flynn, Elaine ED - ResearchGroup ED - DataCollector ED - DataCollector ED - DataCollector DA - 2023-05-26 AU - Knight, Abigail AU - Mitra, Kaushik AU - Catalano, Jeffrey G. L1 - https://data.library.wustl.edu/record/103632/files/Knight_Iron_Oxide_Transformation_Products.zip L1 - https://data.library.wustl.edu/record/103632/files/readme_doi1079366rxs103632_Knight.txt PB - Washington University in St. Louis LA - eng PY - 2023-05-26 ID - 103632 L4 - https://data.library.wustl.edu/record/103632/files/Knight_Iron_Oxide_Transformation_Products.zip L4 - https://data.library.wustl.edu/record/103632/files/readme_doi1079366rxs103632_Knight.txt KW - Physical sciences KW - Earth and related environmental sciences KW - Hematite KW - Jarosite KW - Vera Rubin ridge KW - Diagenesis KW - Gale crater KW - Mars TI - Mineral Products and Fluid Compositions From the Transformations of Iron(III) Minerals in Mars-Relevant Fluids Y1 - 2023-05-26 L2 - https://data.library.wustl.edu/record/103632/files/Knight_Iron_Oxide_Transformation_Products.zip L2 - https://data.library.wustl.edu/record/103632/files/readme_doi1079366rxs103632_Knight.txt LK - https://data.library.wustl.edu/record/103632/files/Knight_Iron_Oxide_Transformation_Products.zip LK - https://data.library.wustl.edu/record/103632/files/readme_doi1079366rxs103632_Knight.txt UR - https://data.library.wustl.edu/record/103632/files/Knight_Iron_Oxide_Transformation_Products.zip UR - https://data.library.wustl.edu/record/103632/files/readme_doi1079366rxs103632_Knight.txt ER -