Summary

My w88 slot online focuses on the combined use of siliceous microfossils (radiolarians, diatoms) and sedimentary geochemistry to answer questions about the age of rocks, the evolution and extinction of fossil marine plankton, as well as understanding past climate, anthropogenic impacts, and natural disturbances in mountain lakes.

w88 slot online lab: I have used Paleozoic radiolarians for over 30 years as a biostratigraphic tool to aid in structural and stratigraphy of complex orogenic regions. Current w88 slot online work, however, is focusing on the last 10 Ma of w88 slot online biodiversity in the Eastern Equatorial Pacific.

Paleolimnology: Lakes preserve long-term records of environmental change, providing an important paleo-perspective to understanding the sensitivities and resilience of watersheds to a variety of natural and man-made stressors. The signals from w88 slot online records can extend our knowledge of significant environmental change back in time, well beyond the limits afforded by instrumental records. Our lab uses diatoms, combined with sedimentary geochemistry and other proxies generated in-house and by our collaborators to establish a record of past environmental change. Our approach further combines the paleolimnological records with a neolimnological characterization of lakes, present day hydrological budgets, and hydrochemistry to try and understand the tailored response of each system to outside forcings. Recently, we have begun tracking the occurrence of prehistoric earthquakes in w88 slot online records, while trying to understand how seismic events can affect groundwater chemistry and spring discharge that enters these lakes.

w88 slot online interests

• w88 slot online and diatomite
• w88 slot online
• Paleoseismicity Triassic ichthyosaurs Luning Formation
• w88 slot online radiolaria

Courses taught

• GEOL 101 Physical Geology
• GEOL 102 Historical Geology
• GEOL 461/661 Paleobiology
• GEOL 462/662 Micropaleontology
• GEOL 763 w88 slot online

Education

• Ph.D. 1993, The University of Texas at Austin; geology
• B.A. 1985, University of California Berkeley; paleontology

Select publications

2020

• Binda, G., Pozzi, A., Michetti, A., w88 slot online, P. J., Rosen, M. (2020). Towards the Understanding of Hydrogeochemical Seismic Responses in Karst Aquifers: A Retrospective Meta-Analysis Focused w88 slot online Apennines (Italy). Minerals, 10(12), 1058.
• w88 slot online, P. J., McGaughey, G., Rosen, M. R., Fuller, C., Aquinas-Lopez, M., Chandra, S. (2020). A 450-year record of environmental change from Castle w88 slot online, (Siskiyou County, CA) through the lens of diatoms and organic geochemistry. Journal of w88 slot online, 65, 201-217. https://doi.org/10.1007/s10933-020-00160-
• Trubovitz, S., Lazarus, D., Renaudie, J., w88 slot online, P. J. (2020). Marine plankton show threshold extinction response to Neogene w88 slot online change. Nature Communications, 11(5069). https://doi.org/10.1038/s41467-020-18879-7

2019

• Archer, C., w88 slot online, P. J., Rosen, M.R., Sagnotti, L., Florindo, F., Mensing, S. A., Piovesan, G., Michetti, A. M., 2019. w88 slot online as paleoseismic records in a seismically-active, low-relief area (Rieti Basin, central Italy). Quaternary w88 slot online Reviews, v. 211, 186-207.

2018

• Ball, G.I., w88 slot online, P.J., Stephens, B.M., Higgins, A., Mensing, S.A., and Aluwihare, L.I., 2018. A lignin, diatom, and pollen record spanning the Pleistocene-Holocene transition at Fallen Leaf w88 slot online, Sierra Nevada, California, USA, in Starratt, S.W., and Rosen, M.R., eds., w88 slot online Saline to Freshwater: The Diversity of Western Lakes in Space and Time: Geological Society of America Special Paper 536.
• Ivanovsky, A., Belles, A., Criquet, J., Dumoulin, D., w88 slot online, P., Alary, C., Billon, G., 2018, Assessment of the treatment efficiency of an urban stormwater pond and its impact w88 slot online natural downstream watercourse, 2018, Journal of w88 slot online Management, v. 226: 120-130.
• Mensing, S.A., Schoolman, E.M., Tunno, I., w88 slot online, P., Sagnotti, L., Florindo, F., and Piovesan, G. 2018. Historical ecology reveals landscape transformation coincident with cultural development in central Italy since Roman time, Nature w88 slot online Reports, 8:2138.
• Okuyucu, C., Tekin, U. Kagan, w88 slot online, P. J., Bedi, Y., Saydam-Demiray, D. Gulnur, Sayit, K. 2018. Foraminifera, Radiolaria and Conodont assemblages w88 slot online the Early Mississippian (late Tournaisian)/Early Pennsylvanian (early Bashkirian)blocks within the Mersin Mélange, southern Turkey: Biochronological and paleogeographical implications. Palaeoworld, 27, 438-457.
• Rosen, M. R., Binda, G., Archer, C., Pozzi, A., Michetti, A.M., and w88 slot online, P.J., 2018. Mechanisms of earthquake-induced chemical and fluid transport to carbonate groundwater springs after earthquakes, Water Resources w88 slot online.
• Tekin, U. Kagan, Okuyucu, C., Sayit, K., Bedi, Y., w88 slot online, P. J., Krystyn, L., Goncuoglu, C. 2018. Integrated Radiolaria, Benthic Foraminifera and Conodont biochronology of the pelagic Permian blocks/tectonic slices and geochemistry of associated volcanic rocks w88 slot online the Mersin Mélange, southern Turkey: Implications for the Permian evolution of the Northern Neotethys. Island Arc, 36.

2017

• Aitchison, J.C., Suzuki, N., Caridroit, M., Danelian, T. and w88 slot online, P., 2017. Paleozoic w88 slot online biostratigraphy. Geodiversitas, 39(3), pp.503-531.
• Caridroit, M., Danelian, T., O'Dogherty, L., Cuvelier, J., Aitchison, J.C., Pouille, L., w88 slot online, P., Dumitrica, P., Suzuki, N., Kuwahara, K. and Maletz, J., 2017. An illustrated catalogue and revised classification w88 slot online genera. Geodiversitas, 39(3), pp.363-417.
• Danelian, T., Aitchison, J.C., w88 slot online, P., Caridroit, M., Suzuki, N. and O'Dogherty, L., 2017. Historical insights on nearly 130 years of w88 slot online on Paleozoic radiolarians. Geodiversitas, 39(3), pp.351-361.
• Howard, K. and w88 slot online, P.J., 2017. Hydrological perturbations drive rapid shifts in phytoplankton biodiversity and population dynamics in Butte w88 slot online (Lassen Volcanic National Park, California). w88 slot online and Reservoir Management, pp.1-21.
• Holm-Denoma, C., Hofsra, A.H., Rockwell, B.W., and w88 slot online, P.J., 2017, The Valmy thrust sheet: A regional structure formed during the protracted assembly w88 slot online Roberts Mountains allochthon, Nevada, USA GSA Bulletin 129 (11-12), p.1521-1536.
• Johnson, B.E., w88 slot online, P.J., Heyvaert, A.C., Chandra, S., and Karlin, R., 2017, Anthropogenic and climatic influences on the diatom flora within the Fallen Leaf w88 slot online watershed, w88 slot online Tahoe Basin, California over the last millennium. Journal of w88 slot online: 1-15.
• w88 slot online, P.J, Aitchison, J.C., Danelian, T., Dumitrica, P., Maletz, J., Suzuki, N., Cuvelier, J., Caridroit, M. and O'Dogherty, L., 2017. Taxonomy w88 slot online genera. Geodiversitas, 39(3), pp.419-502.
• Tetard, M., Monnet, C., w88 slot online, P.J and Danelian, T., 2017. Biodiversity patterns of Silurian w88 slot online. Earth-w88 slot online Reviews , 173 , pp.77-83.
• Archer, C., w88 slot online, P., Kreamer, D., Piscopo, V., Petitta, M., Rosen, M.R., Poulson, S.R., Piovesan, G. and Mensing, S., 2016. Hydrochemical determination of source water contributions to w88 slot online Lungo and w88 slot online Ripasottile (central Italy). w88 slot online Limnology.

2016

• Menicucci, A.J., w88 slot online, P.J. and Houseman, M., 2016. w88 slot online and diatom flora of the Miocene Quincy Diatomite, Washington, USA. Revue de Micropaléontologie, 59(4), 381-395.
• Mensing, S.A., Tunno, I., Cifani, G., Passigli, S., w88 slot online, P., Archer, C., Piovesan, G., 2016. Human and climatically induced environmental change in the Mediterranean during the Medieval w88 slot online Anomaly and Little Ice Age: A case from Italy. Anthropocene,
• w88 slot online, P.J., Ball, G.I., Zimmerman, S.H., Maloney, J. Smith, S.B., Kent, G., Adams, K.D., Karlin, R.E., Driscoll, N., 2016. Holocene paleoclimate history of Fallen Leaf w88 slot online, CA., from geochemistry and sedimentology of well-dated sediment cores. Quaternary w88 slot online Reviews, 131, p. 193-210.