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Articles 4351 - 4380 of 5201
Full-Text Articles in Geology
Mgrre_Lithstriplog_Wittig, Joseph 1_21057034530000, Mgrre Western Michigan University
Mgrre_Lithstriplog_Wittig, Joseph 1_21057034530000, Mgrre Western Michigan University
Legacy Color Lithology Strip Logs
No abstract provided.
Mgrre_Lithstriplog_State Roscommon F-4_21143199100000, Mgrre Western Michigan University
Mgrre_Lithstriplog_State Roscommon F-4_21143199100000, Mgrre Western Michigan University
Legacy Color Lithology Strip Logs
No abstract provided.
Mgrre_Lithstriplog_Smith, Leo & Joe Et Ux 2_21073010050000, Mgrre Western Michigan University
Mgrre_Lithstriplog_Smith, Leo & Joe Et Ux 2_21073010050000, Mgrre Western Michigan University
Legacy Color Lithology Strip Logs
No abstract provided.
Mgrre_Lithstriplog_Kaywood, Roy 1_21111012930000, Mgrre Western Michigan University
Mgrre_Lithstriplog_Kaywood, Roy 1_21111012930000, Mgrre Western Michigan University
Legacy Color Lithology Strip Logs
No abstract provided.
Mgrre_Lithstriplog_Fenstermacher, M Dale & Eleanor I 1_21107222950000, Mgrre Western Michigan University
Mgrre_Lithstriplog_Fenstermacher, M Dale & Eleanor I 1_21107222950000, Mgrre Western Michigan University
Legacy Color Lithology Strip Logs
No abstract provided.
Mgrre_Lithstriplog_Hughes, Lola 1_21111012690000, Mgrre Western Michigan University
Mgrre_Lithstriplog_Hughes, Lola 1_21111012690000, Mgrre Western Michigan University
Legacy Color Lithology Strip Logs
No abstract provided.
Mgrre_Lithstriplog_Waters D 1_21107034280000, Mgrre Western Michigan University
Mgrre_Lithstriplog_Waters D 1_21107034280000, Mgrre Western Michigan University
Legacy Color Lithology Strip Logs
No abstract provided.
Mgrre_Lithstriplog_Hurst, W. G. 1_21107161200000, Mgrre Western Michigan University
Mgrre_Lithstriplog_Hurst, W. G. 1_21107161200000, Mgrre Western Michigan University
Legacy Color Lithology Strip Logs
No abstract provided.
Mgrre_Lithstriplog_Steed, Adrian 3_21111015940000, Mgrre Western Michigan University
Mgrre_Lithstriplog_Steed, Adrian 3_21111015940000, Mgrre Western Michigan University
Legacy Color Lithology Strip Logs
No abstract provided.
Mgrre_Lithstriplog_Charlotte 1_21045003509000, Mgrre Western Michigan University
Mgrre_Lithstriplog_Charlotte 1_21045003509000, Mgrre Western Michigan University
Legacy Color Lithology Strip Logs
No abstract provided.
Mgrre_Lithstriplog_Kalamazoo 1_21077003729000, Mgrre Western Michigan University
Mgrre_Lithstriplog_Kalamazoo 1_21077003729000, Mgrre Western Michigan University
Legacy Color Lithology Strip Logs
No abstract provided.
Mgrre_Lithstriplog_Village Of Kaleva 1-20_21101294170000, Mgrre Western Michigan University
Mgrre_Lithstriplog_Village Of Kaleva 1-20_21101294170000, Mgrre Western Michigan University
Legacy Color Lithology Strip Logs
No abstract provided.
Mgrre_Lithstriplog_Harris, William 1_21111053980000, Mgrre Western Michigan University
Mgrre_Lithstriplog_Harris, William 1_21111053980000, Mgrre Western Michigan University
Legacy Color Lithology Strip Logs
No abstract provided.
Mgrre_Lithstriplog_R. 1 & R. 24_21101000140000, Mgrre Western Michigan University
Mgrre_Lithstriplog_R. 1 & R. 24_21101000140000, Mgrre Western Michigan University
Legacy Color Lithology Strip Logs
No abstract provided.
Mgrre_Lithstriplog_Schoonmaker, Lillian M 1_21107206400000, Mgrre Western Michigan University
Mgrre_Lithstriplog_Schoonmaker, Lillian M 1_21107206400000, Mgrre Western Michigan University
Legacy Color Lithology Strip Logs
No abstract provided.
Mgrre_Lithstriplog_Jacobs, Mary 1_21111023820000, Mgrre Western Michigan University
Mgrre_Lithstriplog_Jacobs, Mary 1_21111023820000, Mgrre Western Michigan University
Legacy Color Lithology Strip Logs
No abstract provided.
Mgrre_Lithstriplog_H.E. Tope Inc. A-1_21073277750000, Mgrre Western Michigan University
Mgrre_Lithstriplog_H.E. Tope Inc. A-1_21073277750000, Mgrre Western Michigan University
Legacy Color Lithology Strip Logs
No abstract provided.
Mgrre_Lithstriplog_Emery Brothers 1_21069004579000, Mgrre Western Michigan University
Mgrre_Lithstriplog_Emery Brothers 1_21069004579000, Mgrre Western Michigan University
Legacy Color Lithology Strip Logs
No abstract provided.
Mgrre_Lithstriplog_Emery, Sadie 1_21057166640000, Mgrre Western Michigan University
Mgrre_Lithstriplog_Emery, Sadie 1_21057166640000, Mgrre Western Michigan University
Legacy Color Lithology Strip Logs
No abstract provided.
Mgrre_Lithstriplog_Bridgman Oil And Gas 1_21021003689000, Mgrre Western Michigan University
Mgrre_Lithstriplog_Bridgman Oil And Gas 1_21021003689000, Mgrre Western Michigan University
Legacy Color Lithology Strip Logs
No abstract provided.
Mgrre_Lithstriplog_State Grant 1_21107103240000, Mgrre Western Michigan University
Mgrre_Lithstriplog_State Grant 1_21107103240000, Mgrre Western Michigan University
Legacy Color Lithology Strip Logs
No abstract provided.
Mgrre_Lithstriplog_Fike, Vernell 2_21073272510000, Mgrre Western Michigan University
Mgrre_Lithstriplog_Fike, Vernell 2_21073272510000, Mgrre Western Michigan University
Legacy Color Lithology Strip Logs
No abstract provided.
Mgrre_Lithstriplog_Packaging Corp Of America Unit "C" 1-26_21101304270000, Mgrre Western Michigan University
Mgrre_Lithstriplog_Packaging Corp Of America Unit "C" 1-26_21101304270000, Mgrre Western Michigan University
Legacy Color Lithology Strip Logs
No abstract provided.
Subsurface Geophysical Investigations Of Oneida Lake Ny: Insights Into Ice Sheet Processes And Deglaciation At Termination I, Nicholas John Zaremba
Subsurface Geophysical Investigations Of Oneida Lake Ny: Insights Into Ice Sheet Processes And Deglaciation At Termination I, Nicholas John Zaremba
Dissertations - ALL
Reconstructing the retreat of the Laurentide Ice Sheet (LIS) provides insight into understanding end-Pleistocene climate, a critical set of boundary conditions prior to the onset of Holocene climates that were optimal for human dispersal and societal growth. Constraining ice sheet dynamics, glacier retreat rates, and the timing of still-stands and readvances requires identifying glacial landforms such as moraines, drumlins, and mega-scale glacial lineations (MSGLs). Drumlins and MSGLs indicate ice sheet flow directions and provide the location of paleo-ice streams, which were accelerated and localized pathways for ice discharge. Ice streams control ice sheet mass balance; therefore, identifying the location of …
Nutrient Restoration Of A Large, Impounded, Ultra-Oligotrophic Western River To Recover Declining Native Fishes, Ryan S. Hardy, Tyler J. Ross, Kevin N. Mcdonnell, Michael C. Quist, Charlie Holderman, Bryan S. Stevens
Nutrient Restoration Of A Large, Impounded, Ultra-Oligotrophic Western River To Recover Declining Native Fishes, Ryan S. Hardy, Tyler J. Ross, Kevin N. Mcdonnell, Michael C. Quist, Charlie Holderman, Bryan S. Stevens
United States Geological Survey: Staff Publications
Declines in many fish populations in large, western rivers have been primarily attributed to the anthropogenic reduction of nutrient inputs and subsequent impacts to the food web. The largest known river fertilization program was implemented starting in 2005 on the Kootenai River in northern Idaho to restore resident fisheries. Annual electrofishing surveys were conducted at multiple sites in Idaho and Montana before and during nutrient addition to evaluate assemblage and population-level responses. Although few responses in fish assemblage structure were observed, the addition of liquid ammonium polyphosphate fertilizer (3 μg/L) to the Kootenai River increased fish abundance and biomass over …
Characterization Of Quaternary Stratigraphy In The Mississippi Sound To Evaluate The Influence Of Geologic Heterogeneity On Submarine Groundwater Transport And Discharge, Zachary Peoples
Theses and Dissertations
Submarine Groundwater Discharge (SGD) through seafloor sediments is gaining recognition as an important component of coastal water quality. Stratigraphic features creating geologic heterogeneity, such as incised paleochannels, may influence preferential pathways for SGD. The central Mississippi Sound is underlain by paleochannels that were incised into Pleistocene sediments while the area was subaerially exposed during the last glacial maximum and are now buried by transgressive Holocene deposits. In this thesis, newly collected chirp, previously published seismic reflection, and sediment core data are used to characterize the three-dimensional structure of the Holocene-Pleistocene contact. Results indicate that Pleistocene paleochannels cross-cut the study area, …
Structural And Biological Analysis Of Faults In Basalts In Sheepshead Mountains, Oregon As An Earth Analogue To Mars, Allison Bohanon
Structural And Biological Analysis Of Faults In Basalts In Sheepshead Mountains, Oregon As An Earth Analogue To Mars, Allison Bohanon
Theses and Dissertations
Microbial life on Mars is not visible from orbit or by rover cameras, but the fracture networks and scarp morphologies associated with fractures they could live in are measurable. We conducted a field analogue study of 92 normal fault scarps in the Sheepshead Mountains, Oregon to examine the correlation between scarp morphology and vegetation growth in the Steens Basalt. While vegetation is not expected on Mars, the fracture networks that sustain vegetation offer the same micro-environment that would support and protect endoliths. Structural variables were measured in the field and infrared spectra of fault scarps were measured using a handheld …
Using Geologic Principles And Data To Create A Symphony For Wind Ensemble, Thomas J. Davis
Using Geologic Principles And Data To Create A Symphony For Wind Ensemble, Thomas J. Davis
2022 Symposium
Geology and geologic processes have featured in many pieces of classical music such as Alan Hovhaness’ symphonic works after Mt. St. Helens and Glacier Peak but these pieces are impressionistic and only take general inspiration from the geology of their subjects. This paper describes the creation of Tectonics (2021) a piece which incorporates and describes many geologic principles and processes, such as mantle convection, through the musical form of cannon, the formation of fold and thrust belts whose cross sections are directly visually recreated in the score, and the physical dynamics of earthquake waves demonstrated through variations of pitch and …
Pre-Eruptive Magma Configurations And Petrogenetic Relationships Of The Rattlesnake Tuff, Oregon–Insights From Spectacularly Banded High-Silica Rhyolite Pumices, Vanessa M. Swenton, Martin J. Streck
Pre-Eruptive Magma Configurations And Petrogenetic Relationships Of The Rattlesnake Tuff, Oregon–Insights From Spectacularly Banded High-Silica Rhyolite Pumices, Vanessa M. Swenton, Martin J. Streck
Geology Faculty Publications and Presentations
The 7.1Ma Rattlesnake Tuff (RST) of eastern Oregon is a widespread and voluminous (>300 km3) ignimbrite composed of 99% crystal poor (≤1%) high-silica rhyolite (HSR) and
Analysis Of Aftershock Parameters For The Alaskan Subduction Zone Tectonic Region, Gabrielle M. Paris (They/Them), Richard C. Hugo, Andrew J. Michael
Analysis Of Aftershock Parameters For The Alaskan Subduction Zone Tectonic Region, Gabrielle M. Paris (They/Them), Richard C. Hugo, Andrew J. Michael
Student Research Symposium
On 29 July 2021, a magnitude 8.2 earthquake was felt by over 200 people near Perryville, Alaska. The early aftershock forecasts issued by the USGS use default parameters based on expected productivity within a given tectonic region. These forecasts predicted a slower decrease in aftershock activity than what was observed. Even after the USGS adjusted the aftershock forecast parameters, the forecasts did not improve in the long term. Accurate aftershock predictions are important for maintaining public confidence in disaster alert systems. The question I want to explore is: are the generic parameters used in aftershock forecasting accurately describing the observed …