Recent Press
- Watauga Democrat: App State professor named to The Explorers Club 50 for pushing the boundaries of exploration (non-paywall version here)
- Appalachian Today: The DAGGER group is award a $583,676 grant from the National Science Foundation for their research
- The DAGGER group is awarded "Expedition of the Year" by the Explorers Club - Atlanta Chapter (College of Arts and Sciences)
- Appalachian Undergraduate Students receive Explorers Club Grants for Research in Mongolia (College of Arts and Sciences)
- Olivia Paschall's Explorer's Club Youth Activity Fund Final Report
- Allison Dombrowski's Explorers Club Youth Activity Fund Final Report
- Appalachian Today: National Geographic Society grant funds for research of Appalachian’s DAGGER team
Read more at the DAGGER news archive...
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IGCP Documentary Trailer
Mongolia Fieldwork Video
Conference Presentations
Selected DAGGER Team Conference Presentations, 2012-present
(* denotes student author)
- *Cara Cywinski, Sarah Carmichael, Peter Königshof, and Hoa Phuong Ta, 2023, Geochemistry of ultrapure carbonates across the Frasnian/Famennian boundary interval in southeast Asia (Xom Nha Formation, Central Vietnam), Geological Society of America Joint 72nd Annual Southeastern/58th Annual Northeastern Section Meeting, Reston, VA
- *Jacqui Foronda, Sarah K. Carmichael, *Cara Cywinski, Peter Königshof, Ariuntogos Munkhjargal, Sersmaa Gonchigdorj, Dalaijamts Gantumur, Johnny A. Waters, John W. Waters, Catherine Crônier, and Magnus Karlsson, 2023, Mapping the middle to late Devonian in the Shinejinst region of the southern Gobi Desert, Mongolia, Geological Society of America Joint 72nd Annual Southeastern/58th Annual Northeastern Section Meeting, Reston, VA
- *Lilith Hazzard, Sarah Carmichael, *Allison Dombrowski, Ariuntogos Munkhjargal, Johnny Waters, Peter Königshof, and Sersmaa Gonchigdorj, 2023, Fluid alteration of the Famennian Hushoot Shiveetiin gol section (Baruunhuurai Terrane, Mongolia) preserved in titania minerals: how does this affect geochemical fingerprinting of shallow waters? Geological Society of America Joint 72nd Annual Southeastern/58th Annual Northeastern Section Meeting, Reston, VA
- Carmichael, Sarah K., Waters, Johnny A., Edwards, Cole T., Boyer, Diana, Cohen, Phoebe and Königshof, Peter, 2021, How robust is your favorite anoxia proxy? Lessons we're learning from the Late Devonian (keynote speaker), Geological Society of America Abstracts with Programs, Vol 53, No. 6, (doi: 10.1130/abs/ 2021AM-366395)
- Wang Zheng, Yuanming Zhang, Jiubin Chen and Sarah Carmichael, 2021, Mercury isotopes from the Pho Han Formation in Vietnam show no evidence for a volcanic trigger for the Devonian-Carboniferous boundary, V.M. Goldschmidt Conference, Lyon, France, Abstract #7187
- *Kathleen M. Duckett, Sarah K. Carmichael, Johnny A. Waters, , Peter Königshof, and Ariuntogos Munkjargal, 2021, Late Devonian Rocks from a new site: The Bayankhoshuu Ruins of southwestern Mongolia, Geological Society of America Abstracts with Programs, vol. 53, no. 2 (doi: 10.1130/abs/2021SE-362284)
- *Allison D. Dombrowski, Sarah K. Carmichael, Peter Königshof, Sersmaa Gonchigdorj, Johnny A. Waters, J. William Waters, Ariunchimeg Yarinpil, and *Olivia C. Paschall, 2019, Expressions of Late Devonian bioevents in the CAOB - new data from the Samnuuruul Formation, southwestern Mongolia, American Geophysical Union Fall Meeting, San Francisco, CA, Abstract #T054-543167.
- Sarah K. Carmichael, Olivia C. Paschall*, Peter Königshof, Johnny A. Waters, Phoung Ta, Toshifumi Komatsu, and Allison Dombrowski*, 2019, A trigger mechanism for the Late Devonian Hangenberg Crisis, as recorded by mercury anomalies in carbonate sediments in Viet Nam and elsewhere: we’re not saying it was volcanoes… but it was volcanoes… (keynote speaker), 11th North American Paleontological Convention, Riverside, CA
- *Olivia Catherine Paschall, Sarah K Carmichael, Peter Königshof, Johnny A. Waters, Michael Joachimski, Phoung Ta Hoa, and Toshifumi Komatsu, 2018, The role of volcanism in triggering the Hangenberg anoxia event: New (and better!) data across the Devonian-Carboniferous transition in the Pho Han Formation, Cat Ba Island, Vietnam, American Geophysical Union Fall Meeting, Washington, DC, Abstract #PP027-384534.
- *Olivia C. Paschall, Sarah K Carmichael, *Allison D Dombrowski, *Cameron J. Batchelor, Drew S. Coleman, Johnny A. Waters, and Peter Königshof, 2017, 87Sr/86Sr Across the Devonian-Carboniferous Transition Within the Pho Han Formation, Cat Ba Island, Vietnam: New Data Outside of an Old Orogeny, to be presented at the American Geophysical Union Fall Meeting, New Orleans, LA, Abstract #PP035-294683.
- *Robert Minichan Thomas Jr, Sarah K Carmichael, Johnny A. Waters and *Cameron Jean Batchelor, 2017, Peeking out of the basins: looking for the Late Devonian Kellwasser Event in the open ocean in the Central Asian Orogenic Belt, southwestern Mongolia, to be presented at the American Geophysical Union Fall Meeting, New Orleans, LA, Abstract #PP035-229230.
- Sarah K Carmichael, Zhihong Wang, Johnny A. Waters, *Allison D. Dombrowski, *Cameron J. Batchelor, Drew S. Coleman, Thomas Suttner, and Erika Kido, 2017 Looking for the Kellwasser Event in all the wrong places: a multiproxy study of island arc paleoenvironments in the Central Asian Orogenic Belt, American Geophysical Union Fall Meeting, New Orleans, LA, Abstract #PP035-210250.
- Carmichael, S.K., Wang, Z., Waters., J.A., *Batchelor, C.J., Coleman, D.S., Suttner, T.J., and Kido, E., 2017, Looking for the Kellwasser anoxia event in all the wrong places: the role of submarine groundwater flow (Junggar Basin, NW China), V.M. Goldschmidt Conference, Paris, France
- Königshof, P., Narkiewicz, K., Ta Hoa, P., Carmichael, S.K., Waters, J.A., *Batchelor, C. & Komatsu, T. - Events in the Mid-Palaeozoic: Examples from the Eastern Paleotethys (Ne Vietnam). In: Suttner, T., Kido, E., Simonetto, L., Waters, J.A., Corradini, C., Carmichael, S.K., and Königshof, P. (Eds.), IGCP 596 Closing Meeting, Udine, Italy, p. 45-48
- Königshof, P., Carmichael, S.K., Waters, J.A., Jansen, U., Bahrami, A., Boncheva, I. & Yazdi, M. 2016, Palaeoenvironmental study of the Palaeotethys Ocean: The Givetian-Frasnian boundary of a shallow marine environment using combined facies analysis and geochemistry (Zefreh Section/Central Iran). In: Suttner, T., Kido, E., Simonetto, L., Waters, J.A., Corradini, C., Carmichael, S.K., and Königshof, P. (Eds.), IGCP 596 Closing Meeting, Udine, Italy, p. 42-44
- *Granholm, John W., Carmichael, Sarah K., and Waters, Johnny A., 2016, Detection of anoxia at the Devonian-Carboniferous boundary in the Namur-Dinant basin, Belgium, Geological Society of America Abstracts with Programs, Vol. 48, No. 7, (doi: 10.1130/abs/2016AM-285236)
- Carmichael, Sarah K., Waters, Johnny A., *Paschall, Olivia C., Koenigshof, Peter, Joachimski, Michael M., Ta, Phuong H. and Komatsu, Toshifumi, 2016, Sustained oceanic anoxia in the Late Devonian Pho Han Formation, Cat Ba Island, Vietnam, Geological Society of America Abstracts with Programs, Vol. 48, No. 7, (doi: 10.1130/abs/2016AM-284929)
- *Batchelor, Cameron J., Carmichael, Sarah K., Waters, Johnny A., Coleman, Drew S., Kido, Erika, Suttner, Thomas, and Gatovsky, Yury, 2015, Constraining the ages of Late Devonian extinction events in the Central Asian Orogenic Belt (CAOB): U-Pb zircon ages and igneous petrology. Geological Society of America Abstracts with Programs, Vol. 47, No. 7, p.340
- Carmichael, Sarah K., and Waters, Johnny A., 2015, Overturning ideas about oceanic overturning in the Late Devonian: insights from the Central Asian Orogenic Belt. Geological Society of America Abstracts with Programs, Vol. 47, No. 7, p.84
- Carmichael, S.K., Waters, J.A., 2015. A decade of deciphering the Late Devonian: more answers, but many more questions, In: Mottequin, B., Denayer, J., Koenigshof, P., Prestianni, C., Olive, S. (Eds.), IGCP596-SDS Symposium. Association STRATA, Brussels, Belgium, pp. 27-29.
- *Batchelor, Cameron J., Carmichael, Sarah K., Waters, Johnny A., Coleman, Drew S., Kido, Erika, Suttner, Thomas, and Gatovsky, Yury, 2015, Constraining the ages of Late Devonian extinction events in the Central Asian Orogenic Belt (CAOB): U-Pb zircon ages and igneous petrology. Geological Society of America Abstracts with Programs, Vol. 47, No. 7, p.340
- Waters, J., Suttner, T., Kido, E., Carmichael, S.K., 2015. Echinoderm ecosystem rembound and diversification after the Frasnian-Famennian extinction: data from the Central Asian Orogenic Belt, In: Mottequin, B., Denayer, J., Koenigshof, P., Prestianni, C., Olive, S. (Eds.), IGCP596-SDS Symposium. Association STRATA, Brussels, Belgium, pp. 149-150.
- Konigshof, P., Phuong, T.H., Carmichael, S.K., *Batchelor, C.J., Komatsu, T., 2015. Events in the Mid-Palaeozoic: examples from the eastern Paleotethys (NE Vietnam), In: Mottequin, B., Denayer, J., Koenigshof, P., Prestianni, C., Olive, S. (Eds.), IGCP596-SDS Symposium. Association STRATA, Brussels, Belgium, pp. 75-76.
- *Hušková, A., Suttner, T., Slavik, L., Valenzuela-Rios, J., Liao, J.C., Gatovsky, Y., Ariunchimeg, Y., Kido, E., Gonchigdorj, S., Waters, J., Carmichael, S.K., *Batchelor, C.J., 2015. Late Devonian conodonts of western Mongolia: preliminary results, In: Mottequin, B., Denayer, J., Koenigshof, P., Prestianni, C., Olive, S. (Eds.), IGCP596-SDS Symposium. Association STRATA, Brussels, Belgium, pp. 27-29.
- *Batchelor, C.J., Carmichael, S.K., Waters, J.A., Coleman, D., Kido, E., Suttner, T.J., 2015. Constraining the ages of Late Devonian extinction events in the Central Asian Orogenic Belt (CAOB): U-Pb zircon ages and igneous petrology, IGCP596-SDS Symposium. Association STRATA, Brussels, Belgium, pp. 12-13.
- Waters, J., Suttner, T. J., Kido, E., and Carmichael, S. K, 2014, The "Age of Crinoids" began in the Late Devonian. Geological Society of America Abstracts with Programs, Abstract # 23-9.
- Königshof, P., da Silva, A.C., Suttner, T.J., Kido, E., Waters, J., Carmichael, S., Jansen, U., Pas, D. Spassov, S., and Joachimski, M., 2014, Shallow water facies setting around the Kačák Event – a multidisciplinary approach, 4th International Paleontology Congress, Mendoza, Argentina, p. 861
- Waters, J.A., Suttner, T.J., Kido, E., and Carmichael, S.K., 2014, Rebound of the Shallow Marine Ecosystem after the Frasnian – Famennian Extinction Event (Late Devonian) in the Central Asian Orogenic Belt: data from China and Mongolia. IGCP 596 & IGCP 580 Joint Meeting and Field-Workshop (Ulaanbaatar, Mongolia 5-18th August 2014)
- Carmichael, S.K., Waters, J.A., Suttner, T.J., Kido, E., *Batchelor, C.J., *Dereuil, A.A., *Moore, L.M., & *Sanchez, S.K., 2014, Terrane accretion, sediment geochemistry, and ocean anoxia in the Late Devonian: the role of paleogeography and tectonic environment in black shale formation during the Kellwasser and Hangenberg Anoxia Events (Keynote lecture). IGCP 596 & IGCP 580 Joint Meeting and Field-Workshop (Ulaanbaatar, Mongolia 5-18th August 2014)
- *Batchelor, C.J., Drew Coleman, Carmichael, S.K. & Waters, J.A., 2014, Zircon Age Dating of the Late Devonian Heishantou Formation. IGCP 596 & IGCP 580 Joint Meeting and Field-Workshop (Ulaanbaatar, Mongolia 5-18th August 2014)
- Waters, J., Suttner, T. J., Kido, E., and Carmichael, S. K., 2014, Rebound of the Shallow Marine Ecosystem after the Frasnian – Famennian Extinction Event (Late Devonian) in the Central Asian Orogenic Belt: the Hongguleleng and 'Hebukehe' Formations, Xinjiang Province, China. Proceedings of the 3rd International Conference on Geobiology, Wuhan, China, p. 210-211.
- Carmichael, S. K., Waters, J., Suttner, T. J., Kido, E., *Batchelor, C. J., *Dereuil, A. A., *Moore, L. M., and *Sanchez, S.K., 2014, Terrane accretion, geochemistry, ocean anoxia, and faunal rebound in a Late Devonian Island Arc Complex: detection of both the Kellwasser and Hangenberg Anoxia Events in the Hongguleleng and Heishantou Formations, Xinjiang Province, China. Proceedings of the 3rd International Conference on Geobiology, Wuhan, China, p. 14-15.
- Carmichael, S. K., Waters, J., DeReuil, A.A., *Moore, L. M., *Batchelor, C., *Sanchez, S., Suttner, T., and Kido, E., 2014, Island Arcs in the Central Asian Orogenic Belt: implications for Late Devonian Ocean Anoxia. The Paleontological Society Special Publications, v. 13, p. 155
- Waters, J., Carmichael, S. K., Suttner, T. J., Kido, E., *Moore, L. M., *Batchelor, C. J., and *DeReuil, A.A., 2014, Anoxia, Extinction, and Faunal Rebound in the Late Devonian in the Central Asian Orogenic Belt: A Multi-Proxy Approach. The Paleontological Society Special Publications, v. 13, p. 108.
- Carmichael, S. K., Waters, J., Suttner, T. J., Kido, E., *Dereuil, A. A., *Moore, L. M., and *Batchelor, C. J., Late Devonian Anoxia Events in the Central Asian Orogenic Belt: a Global Phenomenon. American Geophysical Union Fall Meeting, San Francisco, CA, Abstract #PP51B-1954.
- *DeReuil, A. A., Carmichael, S. K., Waters, J. A., Suttner, T. J., and Kido, E., 2013, Recognition of the Kellwasser event in the Late Devonian Hongguleleng Formation of Northwestern China. Geological Society of America Abstracts with Programs #225432.
- Waters, J., Carmichael, S. K., Suttner, T. J., Kido, E., *Moore, L. M., *Batchelor, C. J., and *Dereuil, A. A., 2013, Recognition of the Kellwasser and Hangenberg Anoxia Events in the Central Asian Orogenic Belt. Geological Society of America Abstracts with Programs, Abstract # 303-3.
- Königshof, P., da Silva, A.C., Suttner, T.J., Kido, E., Waters, J., Carmichael, S., Jansen, U., Pas, D. and Spassov, S., 2013, Shallow water facies setting around the Kačák Event – Microfacies, MS studies, and geochemical proxies, Proceedings of the 3rd International Conference on the Palaeontology of South-East Asia (ICPSEA3), Ipoh, Malaysia, p. 34.
- Sarah K. Carmichael, Johnny A. Waters, *Aubry A. DeReuil, Thomas J. Suttner, Erika Kido, *L. McCain Moore, and *Cameron Batchelor, 2013, Geochemical evidence for global ocean anoxia in the Late Devonian: data from the Hongguleleng Formation, China, presented at the 2013 Sino-US Critical Transitions Workshop: History of Life Evolution in Critical Geological Periods, Kunming, China
- Johnny A. Waters, Sarah K. Carmichael, *Aubry A. DeReuil, Thomas J. Suttner, Erika Kido, Xiuqin Chen, John A. Talent, and Ruth Mawson, 2012, Recognition of the Kellwasser Event (Late Devonian) in the Hongguleleng Formation, Xinjiang, China, presented at the 34th International Geological Congress, Brisbane, Australia, Abstract #3292
- Waters, Johnny A., Carmichael, Sarah K., *DeReuil, Aubry A., Suttner, Thomas J., Kido, Erika, and Chen, Xiuqin, 2012, Geochemistry across the Frasnian / Famennian Boundary, Hongguleleng Formation, Xinjiang Province, China. Mineralogical Magazine, vol. 76 no. 6, #2526 (V.M. Goldschmidt Conference)
- *DeReuil, Aubry A., Waters, Johnny A., Carmichael, Sarah K., Suttner, Thomas J., Kido, Erika, and Chen, Xiuqin, 2012, Diagenetic alteration in samples from the Hongguleleng Formation in the late Devonian of northwestern China. Geological Society of America Southeastern Section - 61st Annual Meeting (presented 1–2 April 2012)