作者:Martins, Rayssa; Kuthning, Sven; Coles, Barry J.; Kreissig, Katharina; Rehkamper, Mark
作者单位:Imperial College London; Shimadzu Corporation
摘要:Material inherited from different nucleosynthesis sources imparts distinct isotopic signatures to meteorites and terrestrial planets. These nucleosynthetic isotope anomalies have been used to constrain the origins of material that formed Earth. However, anomalies have only been identified for elements with high condensation temperatures, leaving the origin of Earth's volatile elements unconstrained. We determined the isotope composition of the moderately volatile element zinc in 18 bulk meteor...
作者:Aung, Aereas; Cui, Ang; Maiorino, Laura; Amini, Ava P.; Gregory, Justin R.; Bukenya, Maurice; Zhang, Yiming; Lee, Heya; Cottrell, Christopher A.; Morgan, Duncan M.; Silva, Murillo; Suh, Heikyung; Kirkpatrick, Jesse D.; Amlashi, Parastoo; Remba, Tanaka; Froehle, Leah M.; Xiao, Shuhao; Abraham, Wuhbet; Adams, Josetta; Love, J. Christopher; Huyett, Phillip; Kwon, Douglas S.; Hacohen, Nir; Schief, William R.; Bhatia, Sangeeta N.; Irvine, Darrell J.
作者单位:Harvard University; Massachusetts Institute of Technology (MIT); Broad Institute; Massachusetts Institute of Technology (MIT); Harvard University; Harvard University; Microsoft; Massachusetts Institute of Technology (MIT); Scripps Research Institute; Scripps Research Institute; Massachusetts Institute of Technology (MIT); Harvard University; Massachusetts Institute of Technology (MIT); Ragon Institute; Harvard University; Harvard University; Harvard Medical School; Harvard University; Harvard University Medical Affiliates; Massachusetts Eye & Ear Infirmary; Harvard University; Harvard University Medical Affiliates; Massachusetts General Hospital; Scripps Research Institute; Scripps Research Institute; International AIDS Vaccine Initiative; Massachusetts Institute of Technology (MIT); Harvard University; Harvard Medical School; Harvard University Medical Affiliates; Brigham & Women's Hospital; Howard Hughes Medical Institute; Massachusetts Institute of Technology (MIT); Duke University
作者:Brantley, S. L.; Shaughnessy, Andrew; Lebedeva, Marina I.; Balashov, Victor N.
作者单位:Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park
摘要:Earth's climate may be stabilized over millennia by solubilization of atmospheric carbon dioxide (CO2) as minerals weather, but the temperature sensitivity of this thermostat is poorly understood. We discovered that the temperature dependence of weathering expressed as an activation energy increases from laboratory to watershed as transport, clay precipitation, disaggregation, and fracturing increasingly couple to dissolution. A simple upscaling to the global system indicates that the temperat...