A5040559627- Geological and Geochemical Analysis
- Geology and Paleoclimatology Research
- earthquake and tectonic studies
- Geological and Geophysical Studies
- High-pressure geophysics and materials
- Paleontology and Stratigraphy of Fossils
- Hydrocarbon exploration and reservoir analysis
- Geochemistry and Geologic Mapping
- Geological formations and processes
- Geomagnetism and Paleomagnetism Studies
- Geological Studies and Exploration
- Groundwater and Isotope Geochemistry
- Plant Diversity and Evolution
- Cryospheric studies and observations
- Geochemistry and Elemental Analysis
- Pleistocene-Era Hominins and Archaeology
- Methane Hydrates and Related Phenomena
- Geophysics and Gravity Measurements
- Geochemistry and Geochronology of Asian Mineral Deposits
- Astro and Planetary Science
- Marine and environmental studies
- Geological Formations and Processes Exploration
- Climate variability and models
- Geological and Tectonic Studies in Latin America
- Isotope Analysis in Ecology
University of Chicago
2014-2024
East Sussex County Council
2018
Worcestershire Health and Care NHS Trust
2016
University at Albany, State University of New York
1984-2006
Miami University
2005
Albany State University
2004
University of Wisconsin–Madison
2002
Washington University in St. Louis
1997
Google (United States)
1993
The quantitative estimation of paleoaltitude has become an increasing focus Earth scientists because surface elevation provides constraints on the geodynamic mechanisms operating in mountain belts, as well influence belt growth regional and global climate. general observation decreasing δ 18 O 2 H values rainfall increases been used both empirical theoretical approaches to estimate paleoelevation. These studies rely preservation ancient water compositions authigenic minerals reconstruct at...
Abstract. The mid-Piacenzian is known as a period of relative warmth when compared to the present day. A comprehensive understanding conditions during Piacenzian serves both conceptual model and source for boundary well means verification global climate experiments. In this paper we PRISM4 reconstruction, paleoenvironmental reconstruction ( ∼ 3 Ma) containing data paleogeography, land sea ice, sea-surface temperature, vegetation, soils, lakes. Our retrodicted paleogeography takes into...
Abstract. The Pliocene Model Intercomparison Project (PlioMIP) is a co-ordinated international climate modelling initiative to study and understand environments of the Late Pliocene, as well their potential relevance in context future change. PlioMIP examines consistency model predictions simulating ability reproduce signals preserved by geological archives. Here we provide description aim objectives next phase intercomparison project (PlioMIP Phase 2), present experimental design boundary...
We document the stratigraphy and provenance of lower Tertiary terrigenous sections in Zhepure Shan region Tethyan Himalaya, southern Tibet, using petrographic geochemical whole‐rock single‐grain techniques. The Cretaceous–early shelf deposits shallow marine carbonates siliciclastics former Indian passive margin near western end are conformably overlain by clastic rocks. Sandstones Jidula Formation (Paleocene) mostly contain monocrystalline quartz grains cratonic origin. In contrast,...
Research Article| August 01, 2002 Rate of plate creation and destruction: 180 Ma to present David B. Rowley 1Department the Geophysical Sciences, University Chicago, 5734 South Ellis Avenue, Illinois 60637, USA Search for other works by this author on: GSW Google Scholar GSA Bulletin (2002) 114 (8): 927–933. https://doi.org/10.1130/0016-7606(2002)114<0927:ROPCAD>2.0.CO;2 Article history received: 05 Sep 2000 rev-recd: 31 Jul 2001 accepted: 30 Oct first online: 01 Jun 2017 Cite View This...
The most recent global "icehouse‐hothouse" climate transition in earth history began during the Permian. Warmer polar conditions, relative to today, then persisted through Mesozoic and into Cenozoic. We focus here on two Permian stages, Sakmarian (285–280 Ma) Wordian (267–264 Ma; also known as Kazanian), integrating floral with lithological data determine their climates globally. These stages postdate Permo‐Carboniferous glaciation but retain a moderately steep equator‐to‐pole gradient,...
The continuity through the past 300 million years of key tropical sediment types, namely coals, evaporites, reefs and carbonates, is examined. Physical controls for their geographical distributions are related to Hadley cell circulation, its effects on rainfall ocean circulation. Climate modelling studies reviewed in this context, as biogeographical fossil groups. Low‐latitude peats coals represent everwet climates Intertropical Convergence Zone near Equator, well coastal diurnal systems...
The presence of coesite- and diamond-bearing ultra-high-pressure (UHP) metamorphic rocks in the Dabie Sulu regions, central China, suggests that a >100-km-thick crustal section (4 x 106 km6 volume) has been denuded. This volume is comparable to represented by 10-15-km-thick Middle Upper Triassic flysch Songpan-Ganzi region. Regional geology radiometric dates are compatible with an interpretation majority these sedimentary were derived from denudation orogenic belt between North South China...
Research Article| March 01, 2005 Middle Miocene paleoaltimetry of southern Tibet: Implications for the role mantle thickening and delamination in Himalayan orogen Brian S. Currie; Currie 1Department Geology, 114 Shideler Hall, Miami University, Oxford, Ohio 45056, USA Search other works by this author on: GSW Google Scholar David B. Rowley; Rowley 2Department Geophysical Sciences, 5734 South Ellis Avenue, University Chicago, Illinois 60637, Neil J. Tabor 3Department Geological Southern...
Sedimentary rocks from Virginia through Florida record marine flooding during the mid-Pliocene. Several wave-cut scarps that at time of deposition would have been horizontal are now draped over a warped surface with maximum variation 60 meters. We modeled dynamic topography by using mantle convection simulations predict amplitude and broad spatial distribution this distortion. The results imply and, to lesser extent, glacial isostatic adjustment account for current architecture coastal plain...
Research Article| September 01, 2007 Late Paleozoic tropical climate response to Gondwanan deglaciation Christopher J. Poulsen; Poulsen 1Department of Geological Sciences, University Michigan, Ann Arbor, Michigan 48109, USA Search for other works by this author on: GSW Google Scholar David Pollard; Pollard 2Earth and Environmental Systems Institute, Pennsylvania State University, Park, 16802, Isabel P. Montañez; Montañez 3Department Geology, One Shields Avenue, California–Davis, Davis,...
We present new stratigraphic and petrographic data on the easterly-derived medial Ordovician flysch sequence of western New England eastern York State. A conformable relationship exists between underlying early Paleozoic continental rise sediments within Taconic Allochthon. Farther east in Allochthon we observe a possibly disconformable relationship. Contrary to previous interpretations, these facts suggest that at any place this paleogeographic realm were undeformed untransported initiation...