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- Appendix B: Geophysical Data (2)
- Geomorphology (2)
- Sediment Transport (2)
- Selected Drillhole Data (2)
- Appendix A: Borehole Data (1)
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Articles 1 - 26 of 26
Full-Text Articles in Physical Sciences and Mathematics
Application Of Hydrogeologic Settings In Groundwater Vulnerability Mapping In Lagrange County, Indiana, Solomon Isiorho
Application Of Hydrogeologic Settings In Groundwater Vulnerability Mapping In Lagrange County, Indiana, Solomon Isiorho
S Isiorho
No abstract provided.
Limits Of Luminescence Dating: An Update Regarding Quartz Of The Southern Alps Of New Zealand And The Olympic Mountains, Washington, Usa, Cianna Wyshnytzky, Tammy Rittenour
Limits Of Luminescence Dating: An Update Regarding Quartz Of The Southern Alps Of New Zealand And The Olympic Mountains, Washington, Usa, Cianna Wyshnytzky, Tammy Rittenour
Cianna E Wyshnytzky
Late Pleistocene glacial sediments from the South Fork Hoh River valley in the Olympic Mountains, Washington, USA and the Lake Hawea valley in the Southern Alps, New Zealand were dated using optically stimulated luminescence (OSL) on quartz and infrared stimulated luminescence (IRSL) on feldspar sand from 2011-2013. High sediment supply (typical of glacial environments), short transport distances, and sediment newly eroded from bedrock sources were expected to pose problems for luminescence dating in these locations. Samples were collected from a variety of depositional environments and inferred distances from the ice-front to assess how luminescence signals may vary due to these …
Granitic Rocks From 3 Deep Drill-Holes, Illinois, Charles J. Vitaliano, George R. Mccormick, Peter Dahl, Yoram Eckstein
Granitic Rocks From 3 Deep Drill-Holes, Illinois, Charles J. Vitaliano, George R. Mccormick, Peter Dahl, Yoram Eckstein
Peter Dahl
A medium- and coarse-grained granite has been encountered in the lower 914 m of deep drill-holes in northwestern Illinois. The mineralogy and chemistry of both types of granite suggest they are anorogenic A-type granites after the definition of Loiselle and Wones (1979). The major oxide composition for both types is nearly identical. Trace element data (Rb, Y, Th) indicate the medium-grained granite crystallized from a more evolved melt than did the coarse-grained granite. Trace element data (Y, Th, Ba, Sr) for the coarsegrained granite show it to be slightly zoned from the bottom upward to the contact with the medium-grained …
Bedrock Strength And River Morphology Datasets For The Colorado River System, Natalie Bursztyn, Joel Pederson
Bedrock Strength And River Morphology Datasets For The Colorado River System, Natalie Bursztyn, Joel Pederson
Natalie Bursztyn
There has been renewed debate over the mechanisms and timing of both uplift and erosion in the Interior West. Yet, in order to understand the region’s long-term landscape evolution and patterns of topography a third factor of bedrock properties must be considered. We are completing a large dataset of bedrock strength and exploring it in the context of reach-scale topographic metrics for the upper Colorado River system. Included are rock-strength measures such as laboratory tensile strength, Schmidt-hammer compressive strength, approximate shale proportion, and Selby rock mass strength classification. To estimate the strength of units too incompetent to test directly, such …
Palaeotrophic Reconstruction And Climatic Forcing Of Mega-Lake Eyre In Late Quaternary Central Australia: A Review, Steve Webb
Steve Webb
Extreme Quaternary climatic variation in Australia brought radical environmental changes to various parts of the continent. In this article, I discuss these changes in terms of mega-lake development in Central Australia, and in particular the southern Lake Eyre Basin (SLEB). The formation of these features, together with the fossil record of the region, throws light on the palaeoclimatic and palaeobiological relationships of megafauna and other animal groups, and the trophic development required to support them. Australian continental drying during the late Quaternary has been noted by many workers, but this process was punctuated by strong pluvial episodes of decreasing strength …
Formation, Deformation, And Incision Of Colorado River Terraces Upstream Of Moab, Utah, Andrew Jochems
Formation, Deformation, And Incision Of Colorado River Terraces Upstream Of Moab, Utah, Andrew Jochems
Andrew Jochems
Fluvial terraces contain information about incision, deformation, and climate change. In this study, a chronostratigraphic record of Colorado River terraces is constructed from optically stimulated luminescence (OSL) dating of Pleistocene alluvium and real-time kinematic (RTK) GPS surveys of terrace form. This record is analyzed to relate terrace formation to late Pleistocene climate fluctuations, and terrain analyses and longitudinal profile patterns reveal recent salt-related activity in the northern Paradox Basin as well as patterns in Colorado Plateau incision.
A well-preserved, correlative suite of mainstem (M) fluvial deposits exists along the Colorado River upstream of Moab, Utah. Absolute dates indicate sedimentation >70 …
Determination Of The Cec In Srs Soils And The Capability Of Epa Model 9081 For Cec Of Acidic Soils, Alexandra Simpson
Determination Of The Cec In Srs Soils And The Capability Of Epa Model 9081 For Cec Of Acidic Soils, Alexandra Simpson
Alexandra M Simpson
No abstract provided.
Determination Of The Cec In Srs Soils And The Capability Of Epa Model 9081 For Cec Of Acidic Soils, Alexandra Simpson
Determination Of The Cec In Srs Soils And The Capability Of Epa Model 9081 For Cec Of Acidic Soils, Alexandra Simpson
Alexandra M Simpson
No abstract provided.
Exhumation Of The Southern Sierra Nevada–Eastern Tehachapi Mountains Constrained By Low-Temperature Thermochronology: Implications For The Initiation Of The Garlock Fault, Ann Blythe, N Longinotti
Exhumation Of The Southern Sierra Nevada–Eastern Tehachapi Mountains Constrained By Low-Temperature Thermochronology: Implications For The Initiation Of The Garlock Fault, Ann Blythe, N Longinotti
Ann Blythe
New apatite and zircon fission-track and apatite (U-Th)/He data from nine samples collected on a north-south transect across the southern Sierra Nevada–eastern Tehachapi Mountains constrain the cooling and exhumation history over the past ∼70 m.y. The four northernmost samples yielded zircon and apatite fission-track ages of ca. 70 Ma, indicating rapid cooling from ∼250 °C to <60 °C (6–8 km of exhumation) at that time. Four of the five southernmost samples yielded slightly younger zircon fission-track ages (57–46 Ma) and apatite fission-track ages (21–18 Ma); the fifth southern sample (from a lower elevation) yielded an apatite fission-track age of ca. 11 Ma. Eight of the nine samples yielded apatite (U-Th)/He ages; these ranged from 60 to 9 Ma, with the youngest ages from the southernmost samples. Inverse thermal history models developed from the data reveal two major stages of cooling for the area, with an initial major cooling event ending at ca. 70 Ma, followed by 50 m.y. of thermal stasis and a second major cooling event beginning at 20 Ma and continuing to the present. The data are consistent with northward-directed tilting and exhumation beginning at 20 Ma, probably as the result of north-south extension in the Mojave Desert on an early strand of the Garlock fault with down-to-the-south offset. A third minor phase of rapid exhumation beginning at ca. 10 Ma is suggested by the data; this may indicate the beginning of left-lateral slip on the Garlock fault.
Meteoric 10Be, FeD, And Clay In Critical Zone Soils, Front Range, Colorado, Cianna Wyshnytzky, James Mccarthy
Meteoric 10Be, FeD, And Clay In Critical Zone Soils, Front Range, Colorado, Cianna Wyshnytzky, James Mccarthy
Cianna E Wyshnytzky
The critical zone is the zone within which meteoric water, atmospheric gases, soil, and bedrock interact, encompassing the zone of soil formation (Anderson et al., 2007). The concentrations of various pedogenic compounds at a given location indicate the degree of weathering that has taken place in the Critical Zone. Among the products of chemical weathering are secondary phyllosilicate minerals (clays) and iron (Birkeland, 1999). At stable sites, chronosequence studies have shown that the amount of pedogenic iron oxide and clay increase as soils become older (McFadden and Hendricks, 1985).
Meteoric ¹⁰Be is a cosmogenic nuclide produced from oxygen and nitrogen …
Updated Glacial Chronology Of The South Fork Hoh River Valley, Olympic Peninsula, Washington Through Detailed Stratigraphy And Osl Dating, Cianna E. Wyshnytzky, Tammy M. Rittenour, Glenn D. Thackray
Updated Glacial Chronology Of The South Fork Hoh River Valley, Olympic Peninsula, Washington Through Detailed Stratigraphy And Osl Dating, Cianna E. Wyshnytzky, Tammy M. Rittenour, Glenn D. Thackray
Cianna E Wyshnytzky
Four glacial advances are preserved and exposed in the stratigraphy of the South Fork Hoh River valley. The oldest of these advances extended beyond the South Fork valley into the Hoh River valley. The three younger advances are preserved in the stratigraphy cut bank exposures in the valley and geomorphically by moraines and outwash plains. One of these advances represents a re-advance to the same terminal position of the previous advance and has not previously been recognized in this valley or other glaciated valleys in the western Olympic Mountains. This finding advocates for a detailed sedimentologic and stratigraphic approach to …
Holocene Sediment Distribution On The Inner Continental Shelf Of Northeastern South Carolina: Implications For The Regional Sediment Budget And Long-Term Shoreline Response, Jenny Denny, William Schwab, Wayne Baldwain, Walter Barnhadt, Paul Gayes, Robert Morton, John Warner, Neil Driscoll, George Voulgaris
Holocene Sediment Distribution On The Inner Continental Shelf Of Northeastern South Carolina: Implications For The Regional Sediment Budget And Long-Term Shoreline Response, Jenny Denny, William Schwab, Wayne Baldwain, Walter Barnhadt, Paul Gayes, Robert Morton, John Warner, Neil Driscoll, George Voulgaris
George Voulgaris
High-resolution geophysical and sediment sampling surveys were conducted offshore of the Grand Strand, South Carolina to define the shallow geologic framework of the inner shelf. Results are used to identify and map Holocene sediment deposits, infer sediment transport pathways, and discuss implications for the regional coastal sediment budget.
The thickest deposits of Holocene sediment observed on the inner shelf form shoal complexes composed of moderately sorted fine sand, which are primarily located offshore of modern tidal inlets. These shoal deposits contain ∼67 M m3 of sediment, approximately 96% of Holocene sediment stored on the inner shelf. Due to the lack …
Detrital Zircon Provenance Of The Proterozoic Midcontinent Rift, Lake Superior Region, Usa, John Craddock, A Konstantinou, J. Vervoort, K. Wirth, C. Davidson, L. Finley-Blasi, N. Juda, E. Walker
Detrital Zircon Provenance Of The Proterozoic Midcontinent Rift, Lake Superior Region, Usa, John Craddock, A Konstantinou, J. Vervoort, K. Wirth, C. Davidson, L. Finley-Blasi, N. Juda, E. Walker
John Craddock
No abstract provided.
Meridional Shifts Of The Atlantic Intertropical Convergence Zone Since The Last Glacial Maximum, J. Arbuszewski, P. Demenocal, C. Cleroux, Louisa Bradtmiller, A. Mix
Meridional Shifts Of The Atlantic Intertropical Convergence Zone Since The Last Glacial Maximum, J. Arbuszewski, P. Demenocal, C. Cleroux, Louisa Bradtmiller, A. Mix
Louisa I. Bradtmiller
No abstract provided.
The Magnitude, Timing And Abruptness Of Changes In North African Dust Deposition Over The Last 20,000 Years, D. Mcgee, P. Demenocal, G. Winckler, J. Stuut, Louisa Bradtmiller
The Magnitude, Timing And Abruptness Of Changes In North African Dust Deposition Over The Last 20,000 Years, D. Mcgee, P. Demenocal, G. Winckler, J. Stuut, Louisa Bradtmiller
Louisa I. Bradtmiller
No abstract provided.
The “Curse Of Rafinesquina:” Negative Taphonomic Feedback Exerted By Strophomenid Shells On Storm-Buried Lingulids In The Cincinnatian Series (Katian, Ordovician) Of Ohio, Rebecca Freeman, Benjamin Dattilo, Aaron Morse, Michael Blair, Steve Felton, John Pojeta
The “Curse Of Rafinesquina:” Negative Taphonomic Feedback Exerted By Strophomenid Shells On Storm-Buried Lingulids In The Cincinnatian Series (Katian, Ordovician) Of Ohio, Rebecca Freeman, Benjamin Dattilo, Aaron Morse, Michael Blair, Steve Felton, John Pojeta
Benjamin F. Dattilo
Taphonomic feedback is the idea that accumulation of organic remains either enhances the habitat for some organisms (positive taphonomic feedback), and/or degrades the habitat for others (negative taphonomic feedback). Examples of epibionts living on skeletal remains are direct evidence of positive taphonomic feedback. Disruption of infaunal burrowing activities by skeletal fragments is an example of negative taphonomic feedback; direct fossil evidence of this phenomenon has not been documented previously. Infaunal organisms are vulnerable to exhumation or entombment during storms, but organisms that burrow can also re-establish viable life positions subsequently. For example, when modern lingulids re-burrow after exhumation, they first …
Introduction And Tribute, George Voulgaris, Timothy Kana, Jacqueline Mitchell
Introduction And Tribute, George Voulgaris, Timothy Kana, Jacqueline Mitchell
George Voulgaris
No abstract provided.
Detrital Zircon Provenance Of The Mesoproterozoic Midcontinent Rift, Lake Superior Region, Usa: Journal Of Geology, V. 121, P. 57-73., John Craddock, Alex Konstantinou, Jeffrey Vervoort, Karl Wirth, Cam Davidson, Lee Finley-Blasi, Natalie Juda, Erin Walker
Detrital Zircon Provenance Of The Mesoproterozoic Midcontinent Rift, Lake Superior Region, Usa: Journal Of Geology, V. 121, P. 57-73., John Craddock, Alex Konstantinou, Jeffrey Vervoort, Karl Wirth, Cam Davidson, Lee Finley-Blasi, Natalie Juda, Erin Walker
Karl Wirth
No abstract provided.
Appendix A: Borehole Data (Thesis Appendix, 2013), David J. Richey
Appendix A: Borehole Data (Thesis Appendix, 2013), David J. Richey
David J Richey
Select borehole data compiled and organized from Utah Division Oil, Gas and Mining (www.oilgas.ogm.utah.gov). The data found here include API well numbers, names of all wells used, well datum as defined by the elevation above sea level measured at the Kelly Bushing on the drilling floor, and the depth to various formation tops encountered during drilling measured in drilling depth.
Appendix B: Geophysical Data (Thesis Appendix, 2013), David J. Richey
Appendix B: Geophysical Data (Thesis Appendix, 2013), David J. Richey
David J Richey
Select geophysical data collected and processed during this thesis. A description of the geophysical methods used, the results and raw data, and some interpretations are provided in this appendix.
Selected Drillhole Data (Dogm), Emery County, Ut, David J. Richey
Selected Drillhole Data (Dogm), Emery County, Ut, David J. Richey
David J Richey
Compiled formation tops data for selected oil and gas exploration drill holes in Emery County, Utah. Data was downloaded from [http://oilgas.ogm.utah.gov/index.htm].
Reversible Water Weakening Of Quartz, Caleb Holyoke, Andreas Kronenberg
Reversible Water Weakening Of Quartz, Caleb Holyoke, Andreas Kronenberg
Caleb Holyoke
No abstract provided.
High Pressure Deformation Experiments Using Solid Confining Media And Griggs Piston-Cylinder Methods: Appraisal Of Stress And Deformation In Talc Assemblies, Eric Stewart, Caleb Holyoke, Andreas Kronenberg
High Pressure Deformation Experiments Using Solid Confining Media And Griggs Piston-Cylinder Methods: Appraisal Of Stress And Deformation In Talc Assemblies, Eric Stewart, Caleb Holyoke, Andreas Kronenberg
Caleb Holyoke
No abstract provided.
Dislocation Creep Of Polycrystalline Dolomite, Caleb Holyoke, Andreas Kronenberg, Julie Newman
Dislocation Creep Of Polycrystalline Dolomite, Caleb Holyoke, Andreas Kronenberg, Julie Newman
Caleb Holyoke
No abstract provided.
Hydrolytic Weakening Of Olivine At Mantle Pressure: Evidence Of [100](010) Slip System Softening From Single-Crystal Deformation Experiments, Jennifer Girard, Jiuhua Chen, Paul Raterron, Caleb Holyoke
Hydrolytic Weakening Of Olivine At Mantle Pressure: Evidence Of [100](010) Slip System Softening From Single-Crystal Deformation Experiments, Jennifer Girard, Jiuhua Chen, Paul Raterron, Caleb Holyoke
Caleb Holyoke
No abstract provided.
Bedrock Strength And River Metrics: Spatial And Statistical Correlations On The Incision Of The Colorado Plateau, Southwest Usa, Natalie Bursztyn, Joel Pederson
Bedrock Strength And River Metrics: Spatial And Statistical Correlations On The Incision Of The Colorado Plateau, Southwest Usa, Natalie Bursztyn, Joel Pederson
Natalie Bursztyn