Peer-reviewed journal publications (all in international refereed journals), * indicates student author

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23. Conwell*, C.T., Saltzman, M.R., Edwards, C.T., Griffith, E.M., Adiatma*, Y.D., 2022, Coupling of mafic weathering and climate change during the early         Paleozoic: Geology, v. 50 p. 886–890.

22.  Edwards, C.T., Jones, C.M., Fike, D.A., and Quinton, P.C., 2022, Oxygen isotope (d18O) trends measured from conodont apatite using secondary ion  mass spectrometry (SIMS): implications for paleothermometry studies: Geological Society of America Bulletin, v. 134, p. 261–274. 

21.  Zhang, J., Edwards, C.T., Diamond*, C.W., Lyons, T.W., and Zhang, Y., 2021., Marine oxygenation, deoxygenation and life during the early Paleozoic:             an overview:  Palaeogeography, Palaeoclimatology, Palaeoecology, v. 584, 110715. 

20.  Edwards, C.T., Fike, D.A., and Saltzman, M.R., 2019, Testing carbonate-associate sulfate (CAS) extraction methods for sulfur isotope stratigraphy: a             case study of a Lower–Middle Ordovician carbonate succession, Shingle Pass, Nevada, USA: Chemical Geology, v. 529, 119297.

19.  Adiatma*, Y.D., Saltzman, M.R., Young, S.A., Griffith, E.M., Kozik*, N.P., Edwards, C.T., Leslie, S.A., and Bancroft, A.M., 2019, Did early land plants         produce a stepwise change in atmospheric oxygen centered in the Late Ordovician (Sandbian ~458 Ma)?: Palaeogeography, Palaeoclimatology,                        Palaeoecology, v. 534, 109341.

18.  Stigall, A.L., Edwards, C.T., Freeman, R.L., and Rasmussen, C.M.Ø., 2019, Coordinated biotic and abiotic change during the Great Ordovician                         Biodiversification Event (GOBE): Darriwilian assembly of earliest Paleozoic building blocks: Palaeogeography, Palaeoclimatology, Palaeoecology, v.             530, p. 249–270.

17.  Stigall, A.L., Freeman, R.L., Edwards, C.T., and Rasmussen, C.M.Ø., 2019, A multidisciplinary perspective on the Great Ordovician Biodiversification             Event and the development of the early Paleozoic world: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 543, 109521.

16.  Edwards, C.T., 2019, Links between early Paleozoic oxygenation and the Great Ordovician Biodiversification Event (GOBE): a review: Palaeoworld, v.         28, p. 37–50.

15.  Welch, S., Sheets, J.M., Place, M.C., Saltzman, M.R., Edwards, C.T., Gupta, N., and Cole, D.R., 2019, Geochemical Monitoring of CO2 Injection into             an Oil-Bearing Reef in the Northern Michigan Basin, Applied Geochemistry, v. 100, p. 380–392.

14.  Liutkus-Pierce, C.M., Takashita-Bynum*, K., Beane*, L.A., Edwards, C.T., Burns, O.E., Mana, S., Hemming, S., Grossman, A., Wright, J.D., and                     Kirera, F., 2019, Reconstruction of the early Miocene critical zone at Loperot, southwestern Turkana, Kenya: Frontiers, v. 7:44.

13.  Edwards, C.T., Fike, D.A., Saltzman, M.R., Lu, W., and Lu, Z., 2018, Evidence for local and global redox conditions at an Early Ordovician                             (Tremadocian) mass extinction: Earth and Planetary Science Letters, v. 481, p. 125–135.

12.  Lu, W., Ridgewell, A., Thomas, E., Hardisty, D.S., Luo G., Algeo, T.J., Saltzman, M.R., Gill, B.C., Shen, Y., Ling, H.-F., Edwards, C.T., Whalen, M.T.,             Zhou, X., Gutchess, K.M., Jin, L., Rickaby, R.E.M., Jenkyns, H.C., Lyons, T.W., Lenton, T.M., Kump, L.R., and Lu, Z., 2018, Late evolution of a                     resiliently oxygenated upper ocean: Science, v. 361 p. 174–177.

11.  Edwards, C.T., Saltzman, M.R., Royer, D.L., and Fike, D.A., 2017, Oxygenation as a driver of the Great Ordovician Biodiversification Event: Nature             Geoscience, v. 10 p. 925–929.

10.  Saltzman, M.R., and Edwards, C.T., 2017, Gradients in the carbon isotopic composition of Ordovician shallow water carbonates: a potential pitfall in             estimates of ancient CO2 and O2: Earth and Planetary Science Letters, v. 464, p. 46–54.

9.  Edwards, C.T., Saltzman, M.R., 2016, Paired carbon isotopic analysis of Ordovician bulk carbonate (d13Ccarb) and organic matter (d13Corg) spanning the         Great Ordovician Biodiversification Event: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 458, p. 102–117.

8.  Young, S.A., Gill, B.C., Edwards, C.T., Saltzman, M.R., Leslie, S.A., 2016, Middle–Late Ordovician (Darriwilian–Sandbian) decoupling of global sulfur         and carbon cycles: isotopic evidence from eastern and southern Laurentia. Palaeogeography, Palaeoclimatology, Palaeoecology, v. 458, p. 118–132.

7.  Edwards, C.T., Saltzman, M.R., Leslie, S.A., Bergström, S.M., Sedlacek, A.R.C., Howard, A., Bauer, J.A., Sweet, W.C., and Young, S.A., 2015,                         Strontium isotope (87Sr/86Sr) stratigraphy of Ordovician bulk carbonate: implications for preservation of primary seawater values: Geological Society of          America Bulletin, v. 127, p. 1275–1289.

6.  Saltzman, M.R., Edwards, C.T., Adrain, J.M., and Westrop, S.R., 2015, Persistence of oceanic anoxia and elevated extinction rates into the Early                         Ordovician: Geology, v. 43, p. 807–810.

5.  Hiatt, E.E., Pufahl, P.K., and Edwards, C.T., 2015, Sedimentary phosphate and associated fossil bacteria in a Paleoproterozoic tidal flat in the 1.85 Ga                 Michigamme Formation, Michigan, USA: Sedimentary Geology, v. 319, p. 24–39.

4.  Saltzman, M.R., Edwards, C.T., Leslie, S.A., Dwyer, G.S., Bauer, J.A., Repetski, J.E., Harris, A.G., and Bergström, S.M., 2014, Calibration of a conodont         apatite-based Ordovician 87Sr/86Sr curve to biostratigraphy and geochronology: implications for stratigraphic resolution: Geological Society of America         Bulletin, v. 126, p. 1551­–1568.

3.  Edwards, C.T., and Saltzman, M.R., 2014, Carbon isotope (d13Ccarb) stratigraphy of the Lower–Middle Ordovician (Tremadocian–Darriwilian) in the                 Great Basin, western United States: implications for global correlation, Palaeogeography, Palaeoclimatology, Palaeoecology, v. 399, p. 1–20.

2.  Edwards, C.T., Pufahl, P.K., Hiatt, E.H., and Kyser, T.K., 2012, Paleoenvironmental and taphonomic controls on the occurrence of Paleoproterozoic                 microbial communities in the 1.88 Ga Ferriman Group, Labrador Trough, Canada: Precambrian Research, v. 212-213, p. 91–106. 

1.  Pufahl, P, K., Hiatt, E, E., Stanley, C, R., Nelson, G, J., and Edwards, C, T., 2007, Proximal to distal ejecta in the Baraga Group, Michigan: physical and             chemical evidence of the 1850 Ma Sudbury Impact Event: Geology, v. 35 p. 827–830.