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David Kidder
| 1995-present | | Associate Professor |
| 1989-1995 | | Assistant Professor |
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| PhD, 1987 | | University of California, Santa Barbara |
| MS, 1982 | | University of Iowa |
| BS, 1980 | | Oberlin College |
Office: 212 Clippinger Laboratories
Office Phone: 740-593-1108
Fax: 740-593-0486
Research Interests
I am interested in the Earth system, and most of my research is in Earth system history with an emphasis on the sedimentary record. In particular, I am investigating the biogeochemical evolution of the silica cycle. Questions that fascinate me in this area include: Did the rise of the grassland ecosystem trigger a substantial increase in diatomite and chert accumulation? Have other land plant innovations such as the Devonian appearance of trees affected the silica cycle? How does the silica cycle respond to orogenic activity? I am also interested in nutrient availability through time. I am working to expand my early work on localized phosphate deposits to considerations of long-term evolution of the phosphorus cycle and its relationship to other biogeochemical cycles such as those of silica, nitrogen, and iron.
I also enjoy focusing on certain intervals of Earth history from a systemic point of view. One of these intervals has been the Permo-Triassic interval
, which experienced some fascinating changes in climate and ocean behavior as well as sweeping changes in the terrestrial realm. Many of these factors appear to have been intimately related so as to perhaps intensify, if not cause the extinction. However, putting one's finger on the actual knockout punch in the rapid, end-Permian faunal and floral devastation remains a challenge with which many investigators will wrestle for some time to come. The Ordovician-Silurian will probably be the next interval I inv
estigate in this manner.
The connections between geological investigations and society are becoming increasingly interesting to me. To that end, I am putting together a book that explores how silicon and silica have affected humanity in a broad range of ways. The title of the book will probably be Silicosociety. | |
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Representative Publications
>¤ Corsetti, F.A., Kidder, D.L., and Marenco, P.J., 2006, Trends in oolite dolomitization across the Neoproterozoic-Cambrian boundary: A case study from Death Valley, California: Sedimentary Geology, v. 191, p. 135-150.
>¤ Kidder, D.L. and Gierlowski-Kordesch, E.H., 2005, Impact of grassland radiation on the nonmarine silica cycle and Miocene diatomite: Palaios, v. 20, p. 198-206.
>¤ Kidder, D.L. and Worsley, T.R., 2004, Causes and consequences of extreme Permo-Triassic warming to globally equable climate and relation to the Permo-Triassic extinction and recovery: Palaeogeography, Palaeoclimatology, and Palaeoecology, v. 203, p. 207-237.
>¤ Kidder, D.L. and Mumma, S.A., 2003, Silica-replaced oolites, bedded shelf cherts and Paleozoic changes in the silica cycle: Sedimentary Geology, v. 162, p. 159-166.
>¤ Kidder, D.L., Krishnaswamy, R., and Mapes, R.H., 2003, Elemental mobility in phosphatic shales during concretion growth and implications for provenance analysis: Chemical Geology, v. 198, p. 335-353.
>¤ Kidder, D.L. and Erwin, D.H., 2001, Secular distribution of biogenic silica through the Phanerozoic: Comparison of silica-replaced fossils and bedded cherts at the series level: Journal of Geology, v. 109, no. 4, p. 509-522.
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Titles of Recent BS and MS Theses
>¤ Tomescu, I. 2004, The Ordovician: A window toward understanding abundance and migration patterns of biogenic chert and implications for paleoclimate: Unpublished M.S. Thesis, Department of Geological Sciences, Ohio University.
>¤ Vanaman, K.M., 2003, Anomalous abundance of Pennsylvanian nearshore chert: A response to changes in silicate weathering? Senior Thesis (B.S. in Geological Sciences), Ohio University.
>¤ Kalinsky, Charles J. III, 2004, Discussion of a Return of Nearshore Chert During the Middle Mississippian. Senior Thesis (B.S. in Geological Sciences), Ohio University.
>¤ Rose, Levi, 2005, Potential Relationships Between Spatial and Temporal Chert Distribution and Biotic, Tectonic, and Climatic Changes in the Devonian. Senior Thesis (B.S. in Geological Sciences), Ohio University.
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Courses Taught
 | GEOL 170: Metal, Stone, Energy, and Society |
| GEOL 211: Oceanography |
| GEOL 255: Historical Geology |
 | GEOL 4/551: Diagenesis |
| GEOL 4/552: Depositional Environments |
Awards and Memberships
>¤ American Association for the Advancement of Science (AAAS)
>¤ American Association of Petroleum Geologists (AAPG)
>¤ American Geophysical Union (AGU)
>¤ Geological Society of America (GSA), Fellow
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