Shale Shaker Vol 72, No 4 July-August 2021

An IntactThirty Four Foot Long Petrified Log in theWoodford Shale, Oklahoma: AQuestion of Preserving Geological Heritage, cont. Oil and Gas Exploration

References Algeo, T.J. and Scheckler, S.E., 1998, Terrestrial-marine teleconnections in the Devonian: links between the evolution of land plants, weathering processes, and marine anoxic events". Philosophical Transactions of the Royal Society B: Biological Sciences. 353 (1365): 113–130. Connock, G., Nguyen, T.X., Philp, R.P., 2018, The development and extent of photic-zone euxinia concomitant with Woodford Shale deposition, AAPG Bulletin 102-6, p. 959–986 Hass, W.H., and J.W. Huddle, 1965, Late Devonian and early Mississippian age of the Woodford Shale in Oklahoma as determined from conodonts, in Geological Survey Research 1965: U.S. Geological Survey Professional Paper 525-D, p. 125-132. Johnson, K.S., and Cardott, B.J., 1992, Source rocks in the southern Midcontinent, 1990 Symposium, Oklahoma Geological Survey, Circular 93, 354 p.

Over, D. J., 1990, Conodont

Philp, R.P. and DeGarmo, C.D., 2020, Geochemical characterization of the Devonian-Mississippian Woodford Shale from the McAlister Cemetery Quarry, Criner Hills Uplift, Ardmore Basin, Oklahoma, Marine and Petroleum Geology 112, p.1-21. Raup, D.M., Sepkoski Jr., J.J., 1982. Mass extinctions in the marine fossil record. Science 215, 1501–1503. Slatt, R., and Woodford Consortium students, 2018, Conventional analysis of unconventional resource shales, Oklahoma City Geological Society Shale Shaker, 69-6, p. 269- 329. Suneson, N.H., 2010, Petrified wood in Oklahoma, Oklahoma City Geological Society Shale Shaker, 60-6, p.1-21. Turner, B., C. Molinares-Blanco, and R. Slatt, 2015, Chemostratigraphic, palynostratigraphic, and sequence stratigraphic analysis of theWoodford Shale,Wyche Farm Quarry, Pontotoc County, Oklahoma: Interpretation, v. 3, no. 1, p. SH1–SH9

biostratigraphy of the Woodford Shale (Late Devonian- Early Carboniferous) in the Arbuckle Upper Mountains, South-Central Oklahoma, Texas Tech University PhD Dissertation, 186 p. Over, D. J., 1992, Conodonts and the Devonian-Carboniferous Boundary in the Upper Woodford Shale, Arbuckle Mountains, South-Central Oklahoma, Journal of paleontology, Vol. 66, No. 2, p. 293-311. Pawlik, L., Bum, B., Samonil, S., Kvacek J., and others, 2020, Impact of trees and forests on the Devonian landscape and weathering processes with implications to the global Earth's system properties – A critical review, Earth Science Reviews, 205, p. 1-17.

Biographical Sketch Andrew Cullen recently retired from Warwick Investments Group where was SVP Geology for 6 years. His industry lineage runs through Shell International, Chesapeake, EOG, Altex Oil, and Clear Creek Silver Company. Andrew holds the trifecta of degrees in geology from the Universities of Oklahoma and Oregon. Dr. Cullen is an adjunct professor at the University of Oklahoma (College of Law) teaching in their Natural Resources Master’s program. Andrew chaired the Alumni Advisory Council for OU’s School of Geology & Geophysics (2017-2019), served on the OCGS Board, and has contributed several technical articles to The Shale Shaker. Andrew is reviewer for AAPG’s Grants-In-Aid program (15yr) and is also a reviewer for the Journal of Asian Earth Sciences, Tectonics, and Earth Science Reviews. In retirement Andrew maintains several active research projects: evidence for volcanic triggering of Late Devonian mass extinctions from the Woodford Shale, basement faulting and seismic risk in the Wichita Mountains, and the tectonic evolution of the greater South China Sea region. Andrew is a member of a Norman musical trio, Wood and Strings, who are the Rock House Bar band - outdoors on Thursday nights. Andrew Cullen

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