Publications
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Chronostratigraphic framework for the IODP Expedition 318 cores from the Wilkes Land Margin: Constraints for paleoceanographic reconstruction Chronostratigraphic framework for the IODP Expedition 318 cores from the Wilkes Land Margin: Constraints for paleoceanographic reconstruction
The Integrated Ocean Drilling Program Expedition 318 to the Wilkes Land margin of Antarctica recovered a sedimentary succession ranging in age from lower Eocene to the Holocene. Excellent stratigraphic control is key to understanding the timing of paleoceanographic events through critical climate intervals. Drill sites recovered the lower and middle Eocene, nearly the entire Oligocene...
Authors
L. Tauxe, C.E. Stickley, S. Sugisaki, P.K. Bijl, S. M. Bohaty, H. Brinkhuis, C. Escutia, J.A. Flores, A.J.P. Houben, M. Iwai, F. Jimenez-Espejo, R. McKay, S. Passchier, J. Pross, Christina Riesselman, U. Röhl, F. Sangiorgi, K. Welsh, A. Klaus, A. Fehr, J.A.P. Bendle, R. Dunbar, J. Gonzalez, T. Hayden, K. Katsuki, M.P. Olney, S.F. Pekar, P.K. Shrivastava, T. van de Flierdt, T. Williams, M. Yamane
Patterns and controlling factors of species diversity in the Arctic Ocean Patterns and controlling factors of species diversity in the Arctic Ocean
Aim The Arctic Ocean is one of the last near-pristine regions on Earth, and, although human activities are expected to impact on Arctic ecosystems, we know very little about baseline patterns of Arctic Ocean biodiversity. This paper aims to describe Arctic Ocean-wide patterns of benthic biodiversity and to explore factors related to the large-scale species diversity patterns. Location ...
Authors
Moriaki Yasuhara, Gene Hunt, Gert van Dijken, Kevin R. Arrigo, Thomas M. Cronin, Jutta E. Wollenburg
Stable isotope evidence for glacial lake drainage through the St. Lawrence Estuary, eastern Canada, ~13.1-12.9 ka Stable isotope evidence for glacial lake drainage through the St. Lawrence Estuary, eastern Canada, ~13.1-12.9 ka
Postglacial varved and rhythmically-laminated clays deposited during the transition from glacial Lake Vermont (LV) to the Champlain Sea (CS) record hydrological changes in the Champlain-St. Lawrence Valley (CSLV) at the onset of the Younger Dryas ∼13.1–12.9 ka linked to glacial lake drainage events. Oxygen isotope (δ18O) records of three species of benthic foraminifera (Cassidulina...
Authors
T. M. Cronin, J.A. Rayburn, J.-P. Guilbault, R. Thunell, D.A. Franzi
Florida Bay salinity and Everglades wetlands hydrology circa 1900 CE: A compilation of paleoecology-based statistical modeling analyses Florida Bay salinity and Everglades wetlands hydrology circa 1900 CE: A compilation of paleoecology-based statistical modeling analyses
Throughout the 20th century, the Greater Everglades Ecosystem of south Florida was greatly altered by human activities. Construction of water-control structures and facilities altered the natural hydrologic patterns of the south Florida region and consequently impacted the coastal ecosystem. Restoration of the Greater Everglades Ecosystem is guided by the Comprehensive Everglades...
Authors
F.E. Marshall, G.L. Wingard
Latitudinal species diversity gradient of marine zooplankton for the last three million years Latitudinal species diversity gradient of marine zooplankton for the last three million years
High tropical and low polar biodiversity is one of the most fundamental patterns characterising marine ecosystems, and the influence of temperature on such marine latitudinal diversity gradients is increasingly well documented. However, the temporal stability of quantitative relationships among diversity, latitude and temperature is largely unknown. Herein we document marine zooplankton...
Authors
Moriaki Yasuhara, Gene Hunt, Harry J. Dowsett, Marci M. Robinson, Danielle K. Stoll
Short-term survival of ammonites in New Jersey after the end-Cretaceous bolide impact Short-term survival of ammonites in New Jersey after the end-Cretaceous bolide impact
A section containing the Cretaceous/Paleogene (= Cretaceous/Tertiary) boundary in Monmouth County, New Jersey, preserves a record of ammonites extending from the end of the Cretaceous into possibly the beginning of the Danian. The section includes the upper part of the Tinton Formation and lower part of the Hornerstown Formation. The top of the Tinton Formation is represented by a richly
Authors
Neil H. Landman, Matthew P. Garb, Remy Rovelli, Denton S. Ebel, Lucy E. Edwards
Standardizing texture and facies codes for a process-based classification of clastic sediment and rock Standardizing texture and facies codes for a process-based classification of clastic sediment and rock
Proposed here is a universally applicable, texturally based classification of clastic sediment that is independent from composition, cementation, and geologic environment, is closely allied to process sedimentology, and applies to all compartments in the source-to-sink system. The classification is contingent on defining the term "clastic" so that it is independent from composition or...
Authors
K.M. Farrell, W.B. Harris, D. J. Mallinson, S.J. Culver, S.R. Riggs, J. Pierson, J.C. Lautier
Calcareous nannofossil assemblage changes across the Paleocene-Eocene thermal maximum: Evidence from a shelf setting Calcareous nannofossil assemblage changes across the Paleocene-Eocene thermal maximum: Evidence from a shelf setting
Biotic response of calcareous nannoplankton to abrupt warming across the Paleocene/Eocene boundary reflects a primary response to climatically induced parameters including increased continental runoff of freshwater, global acidification of seawater, high sedimentation rates, and calcareous nannoplankton assemblage turnover. We identify ecophenotypic nannofossil species adapted to low pH...
Authors
Jean M. Self-Trail, David S. Powars, David K. Watkins, Gregory A. Wandless
Ages of pre-rift basement and synrift rocks along the conjugate rift and transform margins of the Argintine Precordillera and Laurentia Ages of pre-rift basement and synrift rocks along the conjugate rift and transform margins of the Argintine Precordillera and Laurentia
New geochronologic data from basement rocks support the interpretation that the Argentine Precordillera (Cuyania) terrane was rifted from the Ouachita embayment of the Iapetan margin of Laurentia. New data from the Ozark dome show a range of ages in two groups at 1466 ± 3 to 1462 ± 1 Ma and 1323 ± 2 to 1317 ± 2 Ma, consistent with existing data for the Eastern Granite-Rhyolite province...
Authors
William A. Thomas, Robert D. Tucker, Ricardo A. Astini, Rodger E. Denison
Digital outcrop model of stratigraphy and breccias of the southern Franklin Mountains, El Paso, Texas Digital outcrop model of stratigraphy and breccias of the southern Franklin Mountains, El Paso, Texas
This chapter reviews and synthesizes the lithostratigraphy, biostratigraphy, chronostratigraphy, and breccia types of the southwestern part of the great American carbonate bank in the southern Franklin Mountains (SFM), El Paso, Texas. Primary stratigraphic units of focus are the Lower Ordovician El Paso and Upper Ordovician Montoya Groups. These groups preserve breccias formed by...
Authors
Jerome A. Bellian, Charles Kerans, John E. Repetski
Magnetostratigraphy susceptibility for the Guadalupian Series GSSPs (Middle Permian) in Guadalupe Mountains National Park and adjacent areas in West Texas Magnetostratigraphy susceptibility for the Guadalupian Series GSSPs (Middle Permian) in Guadalupe Mountains National Park and adjacent areas in West Texas
Here we establish a magnetostratigraphy susceptibility zonation for the three Middle Permian Global boundary Stratotype Sections and Points (GSSPs) that have recently been defined, located in Guadalupe Mountains National Park, West Texas, USA. These GSSPs, all within the Middle Permian Guadalupian Series, define (1) the base of the Roadian Stage (base of the Guadalupian Series), (2) the...
Authors
Bruce R. Wardlaw, Brooks B. Ellwood, Lance L. Lambert, Jonathan H. Tomkin, Gordon L. Bell, Galina P. Nestell