Index Catalog // ScholarsArchive@OSU

Fingered Flow in Two Dimensions 2. Predicting Finger Moisture Profile

Creator:: Selker, J., Parlange, J.-Y., and Steenhuis, T.
Abstract:: An exact integral solution for the moisture profile in growing fingers in sandy soil is derived from Richards' equation. The solution provides moisture content along a finger as a function of position and time and provides applicable results, including the calculation of the asymptotic matric potential of a growing finger...
Resource Type:: Article
Full Text:: • dw dw Integrating (2) once yields dO -vO = D(O) • K(O) + C (3) where C is a constant of

Millennial–scale CaCO₃ and C[subscript ORG] events along the northern and central California margins : stratigraphy and origins

Creator:: Lyle, Mitchell, Mix, Alan C., Ravelo, A. Christina, Andreasen, Dyke, Heusser, Linda, and Olivarez, Annette
Abstract:: Sediments from five Leg 167 drill sites and three piston cores were analyzed for C[subscript ORG] and CaCO₃. Oxygen isotope stratigraphy on benthic foraminifers was used to assign age models to these sedimentary records. We find that the northern and central California margin is characterized by k.y.-scale events that can...
Resource Type:: Article
Full Text:: 0.51 4.15 12.297 0.347 1.770 0.25 1.36 0.572 7.034 0.124 0.018 M I L L E N I A L - S C A

Benthic foraminiferal stable isotope stratigraphy of Site 846 : 0-1.8 Ma

Creator:: Mix, Alan C., Le, J., and Shackleton, N. J.
Abstract:: A stable-isotope stratigraphy at Site 846 (tropical Pacific, 3°06'S, 90°49'W, 3307 m water depth), based on the benthic foraminifers Cibicides wuellerstorfi and Uvigerina peregrina, yields a high-resolution record of deep-sea δ¹⁸O and δ¹³C over the past 1.8 Ma, with an average sampling interval of 3 k.y. Variance in the δ¹⁸O...
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Full Text:: orbitally-paced internal oscillation. A weak 30-k.y. rhythm, present in both δ 1 8 θ and δ13C, may reflect

Data report : trace element, Sr isotope, and Ge/SI composition of fluid and sediments in ridge-flank low-temperature hydrothermal environments

Creator:: Hulme, Samuel M., Wheat, C. Geoffrey, Coggon, Rosalind M., and McManus, James
Abstract:: The data presented in this report demonstrate significant improvements in the ability to constrain trace element and Sr isotopic concentrations in sediments overlying ridge-flank hydrothermal systems. Improved sampling methods orchestrated by the Integrated Ocean Drilling Program (i.e., advanced piston coring and anoxic sample processing) enabled the collection of reactive pore...
Resource Type:: Article
Full Text:: centrifugation at 1°–4°C and filtered through a 0.45 µm filter. Lastly, bulk sediment chemical analyses were

Spatial and temporal variability of late Neogene Equatorial Pacific carbonate : ODP Leg 138

Creator:: Hagelberg, T. K., Pisias, Nicklas G., Mayer, L. A., Shackleton, N. J., and Mix, Alan C.
Abstract:: High resolution, continuous records of GRAPE wet bulk density (a carbonate proxy) from Ocean Drilling Program Leg 138 provide one the opportunity for a detailed study of eastern equatorial Pacific Ocean carbonate sedimentation during the last 6 m.y. The transect of sites drilled spans both latitude and longitude in the...
Resource Type:: Article
Full Text:: be known. Third, a highly constrained chronology is required to determine sedimenta Predicted %CαC0

Sediment depths determined by comparison of grape and logging denisty data during Leg 138

Creator:: Mix, Alan C., Harris, Sara E., Hagelberg, T. K., Pisias, Nicklas G., and Shackleton, N. J.
Abstract:: Establishing true depths of recovered sediments is critical to determining sedimentation rates for high-resolution paleoclimatic studies. We have corrected the composite depth scale, which accounts for the entire continuous sedimentary sequence, so that sediment depths are consistent with logging depths, or "true" depths. We accomplished this by taking advantage of...
Resource Type:: Article
Full Text:: were used to achieve this match, improving the correlation from 0.31 (A) to 0.82 (B). C. Mapping

Leg 202 synthesis: Southeast Pacific paleoceangraphy

Creator:: Tiedemann, Ralf and Mix, Alan C.
Abstract:: Ocean Drilling Program (ODP) Leg 202 has opened a new window into understanding late Paleogene and Neogene global environmental change by providing high-quality sediment sequences from a previously unsampled region, the eastern South Pacific. Eleven sites (1232– 1242) that record variations on timescales ranging from decades to tens of millions...
Resource Type:: Article
Full Text:: Basin Panama Basin Galapagos Islands E a s t P a c i f i c R is e Valparaiso Balboa enoZ

Alkenone sea-surface temperatures and carbon burial at site 846 (Eastern Equatorial Pacific Ocean) : the last 1.3 M.Y.

Creator:: Emeis, K.-C., Doose, H., Mix, Alan C., and Schulz-Bull, D.
Abstract:: We analyzed the unsaturation ratio (U k/37 ) of long-chain ketones—a molecular sea-surface temperature (SST) indicator—concentrations of carbonate and organic carbon in sediments from Site 846 in the eastern equatorial Pacific Ocean. Based on an isotopic age model for the composite depth section of 0-46 m below seafloor and on...
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Full Text:: fluctuated considerably over the interval studied. A long trend of gradual decrease from 24°C at 1.3 Ma ends

Vegetation and climate of the northwest coast of North America during the last 500 K.Y. : high–resolution pollen evidence from the northern California margin

Creator:: Heusser, Linda, Lyle, Mitchell, and Mix, Alan C.
Abstract:: Pollen analyses of sediments from Holes 1019C, 1019E, 1020C, and 1020D as well as piston Core EW9504-17 provide continuous, chronostratigraphically controlled proxy vegetation and climate data for coastal northwest North America for the last ~500 k.y. Systematic changes in the representation of the diagnostic components of northern California plant assemblages...
Resource Type:: Article
Full Text:: development of this manuscript include N. Pisias, C. Heusser, and E. Stock. We thank L. Dupont and A. Mix for

Discovery and Implications of C₂ and C₃ Perfluoroalkyl Sulfonates in Aqueous Film-Forming Foams and Groundwater

Creator:: Barzen-Hanson, Krista A. and Field, Jennifer A.
Abstract:: This is an open access article published under an ACS AuthorChoice License, which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
Resource Type:: Article

ScholarsArchive@OSU

Fingered Flow in Two Dimensions 2. Predicting Finger Moisture Profile

Millennial–scale CaCO₃ and C[subscript ORG] events along the northern and central California margins : stratigraphy and origins

Benthic foraminiferal stable isotope stratigraphy of Site 846 : 0-1.8 Ma

Data report : trace element, Sr isotope, and Ge/SI composition of fluid and sediments in ridge-flank low-temperature hydrothermal environments

Spatial and temporal variability of late Neogene Equatorial Pacific carbonate : ODP Leg 138

Sediment depths determined by comparison of grape and logging denisty data during Leg 138

Leg 202 synthesis: Southeast Pacific paleoceangraphy

Alkenone sea-surface temperatures and carbon burial at site 846 (Eastern Equatorial Pacific Ocean) : the last 1.3 M.Y.

Vegetation and climate of the northwest coast of North America during the last 500 K.Y. : high–resolution pollen evidence from the northern California margin

Discovery and Implications of C₂ and C₃ Perfluoroalkyl Sulfonates in Aqueous Film-Forming Foams and Groundwater

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