Research Scientist
Ph.D., Washington University 1997
M.Sc., Memorial University 1993
Email: ramezani@mit.edu
Office phone: 617.253.1384
Office location: 54-1116
Administrator: Kayla Bauer
Research interests: Application of high-precision U-Pb geochronology to the stratigraphic record and Earth history. Calibration of the geologic timescale. Chronostratigraphy of marine and continental sedimentary basins, integrating their depositional history, biostratigraphy and records of paleoenvironmental change.
Recent publications:
Wu Q., Zhang H., Ramezani J., Zhang F.-f., Erwin D.H., Feng Z., Shao L.-y., Cai Y.-f., Zhang S.-h., Xu Y.-g., and Shen S.-z. (2024) The terrestrial end-Permian mass extinction in the paleotropics postdates the marine extinction. Science Advances, 10(5), eadi7284, doi:10.1126/sciadv.adi7284.
Eberth D.A., Evans D.C., Ramezani J., Kamo S.L., Brown C.M., Currie P.J., and Braman D.R. (2023) Calibrating geologic strata, dinosaurs, and other fossils at Dinosaur Provincial Park (Alberta, Canada) using a new CA-ID-TIMS U–Pb geochronology. Canadian Journal of Earth Sciences, 60(12), 1627-1646, doi:10.1139/cjes-2023-0037.
Hoffman P.F., Macdonald F.A., Bowring S.A., Ramezani J., Buchwaldt R., Hildebrand R.S., and Whalen J.B. (2023) Crustal eduction and slab-failure magmatism in an Orosirian (2.05–1.80 Ga) postcollisional cratonic foredeep: geochronology of Seton volcanics and Compton laccoliths, Tu Cho (Great Slave Lake), NWT, Canada. Canadian Journal of Earth Sciences, 0(0), null, doi:10.1139/cjes-2023-0011.
Mercuzot M., Rossignol C., Bourquin S., Ramezani J., Ducassou C., Poujol M., Beccaletto L., and Pellenard P. (2023) U–Pb age constraints on the Carboniferous–Permian transition in continental basins of eastern equatorial Pangaea (France): implications for the depositional history and correlations across the late Variscan Belt. Journal of the Geological Society, 180(6), doi:10.1144/jgs2023-075.
Pu J.P., Macdonald F.A., Smith E.F., Ramezani J., and Swanson-Hysell N. (2023) Tonian basins record rifting of Kalahari from Rodinia and no evidence of a pre-Sturtian Kaigas glaciation. Earth and Planetary Science Letters, 624, 118472, doi:10.1016/j.epsl.2023.118472.
Rogers R.R., Eberth D.A., and Ramezani J. (2023) The “Judith River–Belly River problem” revisited (Montana-Alberta-Saskatchewan): New perspectives on the correlation of Campanian dinosaur-bearing strata based on a revised stratigraphic model updated with CA-ID-TIMS U-Pb geochronology. GSA Bulletin, 136(3-4), 1221-1237, doi:10.1130/b36999.1.
Zheng D., Chang S.-C., Ramezani J., Xu X., Xu H., Wang H., Pei R., Fang Y., Wang J., Wang B., and Zhang H. (2023) Calibrating the Early Cretaceous Urho Pterosaur Fauna in Junggar Basin and implications for the evolution of the Jehol Biota. GSA Bulletin, 136(1-2), 765-773, doi:10.1130/b36795.1.
Guo W., Tong J., He Q., Hounslow M.W., Song H., Dal Corso J., Wignall P.B., Ramezani J., Tian L., and Chu D. (2022) Late Permian–Middle Triassic magnetostratigraphy in North China and its implications for terrestrial-marine correlations. Earth and Planetary Science Letters, 585, 117519, doi:10.1016/j.epsl.2022.117519.
Nelson L.L., Ramezani J., Almond J.E., Darroch S.A.F., Taylor W.L., Brenner D.C., Furey R.P., Turner M., and Smith E.F. (2022) Pushing the boundary: A calibrated Ediacaran-Cambrian stratigraphic record from the Nama Group in northwestern Republic of South Africa. Earth and Planetary Science Letters, 580, 117396, doi:10.1016/j.epsl.2022.117396.
Ramezani J., Beveridge T.L., Rogers R.R., Eberth D.A., and Roberts E.M. (2022) Calibrating the zenith of dinosaur diversity in the Campanian of the Western Interior Basin by CA-ID-TIMS U-Pb geochronology. Sci Rep, 12(1), 16026, doi:10.1038/s41598-022-19896-w.
Scasso R.A., Ramezani J., Escapa I., Elgorriaga A., and Capelli I. (2022) U–Pb age constraints on the Jurassic succession and paleoflora of Mount Flora, Antarctic Peninsula. International Journal of Earth Sciences, 10.1007/s00531-021-02155-0, doi:10.1007/s00531-021-02155-0.
Sun F.N., Hu W.X., Cao J., Wang X.L., Zhang Z.R., Ramezani J., and Shen S.Z. (2022) Sustained and intensified lacustrine methane cycling during Early Permian climate warming. Nature Communications, 13(1), doi:10.1038/S41467-022-32438-2.