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Investigating Patterns Of Fluvial Form And Incision Near The Yellowstone Hotspot — Alpine Canyon Of The Snake River, Wyoming, Daphnee Tuzlak

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The shape of a landscape is created by rivers, which erode the underlying bedrock and carve through mountains. The Snake River flows across the uplifting hotspot plume of the Yellowstone region, cuts through the Snake River Range, and ultimately enters the low-lying eastern Snake River Plain. Although there is a good understanding of the track of the Yellowstone hotspot over geologic time and shorter timescales, measurements over Quaternary timescales and an understanding of how uplift influences the rivers and landscape in the Yellowstone region are absent. We study the Snake River and its past deposits where it cuts through Alpine …

Evaluation Of Electrocoagulation For Chloride And Ammonium Removal From The Reject Brine Effluent Pretreated By Solvay Process, Miada Abubaker Ali

Theses

Excessive use of desalination, due to the increase in freshwater demand, results in large productions of reject brine. Therefore, the development of an efficient treatment process of the reject brine becomes vital. The Solvay process is one of the main treatment technologies, wherein NH₃ is introduced to convert soluble Na⁺ into insoluble NaHCO₃. However, in this process, Cl^- is not removed and NH₄⁺ is introduced, and therefore electrocoagulation has been proposed for their removal. The experiment was designed using Minitab with different initial concentrations of chloride (7400 – 32600 mg/l), current densities (0.033 …

Submarine Deposits From Pumiceous Pyroclastic Density Currents Traveling Over Water: An Outstanding Example From Offshore Montserrat (Iodp 340), M. Jutzeler, M. Manga, J. D. L. White, P. J. Talling, Alexander A. Prusevich, S. F. L. Watt, M. Cassidy, R. N. Taylor, A. Le Friant, O. Ishizuka

Faculty Publications

Pyroclastic density currents have been observed to both enter the sea, and to travel over water for tens of kilometers. Here, we identified a 1.2-m-thick, stratified pumice lapilli-ash cored at Site U1396 offshore Montserrat (Integrated Ocean Drilling Program [IODP] Expedition 340) as being the first deposit to provide evidence that it was formed by submarine deposition from pumice-rich pyroclastic density currents that traveled above the water surface. The age of the submarine deposit is ca. 4 Ma, and its magma source is similar to those for much younger Soufrière Hills deposits, indicating that the island experienced large-magnitude, subaerial caldera-forming explosive …

Engineering Characteristics Of Rocks In Qatar; Applications On Excavation And Tunneling, Ahmed Fawzy Kassem

Theses and Dissertations

Excavation as well as tunneling have become fundamental operations in the advanced civil engineering field. In Qatar, many subsurface construction operations take place in rocks. However, the lack of studies and research that analyze the subsurface rock components from a geotechnical engineering perspective has created unexpected construction conditions. Most of similar studies handled concerns about properties related to oil and gas fields. This research aims to provide a geotechnical study for rocks in Qatar, and to illustrate the impact of the existence of these rock layers on two civil applications; namely excavation and tunneling. During this study, soil investigation reports …

Zooarchaeological And Palaeoenvironmental Reconstruction Of Newly Excavated Middle Pleistocene Deposits From Elandsfontein, South Africa, Frances L. Forrest

Dissertations, Theses, and Capstone Projects

Increased consumption of animal tissue is arguably one of the most important adaptive transitions in early hominin behavior. A dietary shift toward regular tool-assisted meat consumption and increased competition with the carnivore paleoguild likely helped shape many important hominin adaptations such as foraging patterns, habitat preferences, and social behaviors. Yet, the ecological and behavioral implications for increased hominin carnivory remain poorly understood. This dissertation examines the zooarchaeological and paleoenvironmental history of an important Acheulean hominin locality, Elandsfontein, South Africa (ca. 1.0 – 0.6 Ma). The goal is to begin addressing under-investigated aspects of Acheulean hominin behavioral ecology and place Acheulean …

Table Of Contents

Andrews University Seminary Studies (AUSS)

No abstract provided.

Campus Vol Ix N 4, Mike Cook, Bruce Mcintosh, Joen Pritchard, Prentice Stout, John Hodges, C. Tuttle, George M. Fenberg, Midge Greenlee, John Miller, Beth Hodge, Tip Rasor, Shaw Kull

Campus

Howard Studio. Cover. Picture. 1.

Anonymous. Untitled. Prose. 4.

Cook, Mike. "misty Mood". Prose. 5.

McIntosh, Bruce. "Misty Mood". Picture. 5.

Pritchard, Joen. "In the Good 'Ole Summertime...". Prose. 6.

Stout, Prentice. "In the Good 'Ole Summertime...". Picture. 6.

Hodges, John. "How to Choose a Roommate". Prose. 7.

Tuttle, C. Untitled. Cartoon. 7.

Fenberg, Geo. M. "Students---". Prose. 3.

Wood and Knapp. "Jokes From the Jazz Age as Flips From Flappers". Prose. 8.

Greenlee, Midge. "Nine to Five". Prose. 10.

Anonymous. "Mr. and Miss Campus-1954". Picture. 11.

Anonymous. "Well Shut My Mouth!". Prose. 14.

Tuttle, C. Untitled. Cartoon. 14.; Miller, …

Multi-Tests For Pore Structure Characterization-A Case Study Using Lamprophyre, Zhen Li, Guorui Feng, Yi Luo, Shengyong Hu, Tingye Qi, Haina Jiang, Jun Guo, Jinwen Bai, Xianjie Du, Lixun Kang

Faculty & Staff Scholarship

The pore structure plays an important role to understand methane adsorption, storage and flow behavior of geological materials. In this paper, the multi-tests including N2 adsorption, mercury intrusion porosimetry (MIP) and CT reconstruction have been proposed on Tashan lamprophyre samples. The main findings are listed: (1) The pore size distribution has a broad range ranging from 2-100000nm, among which the adsorption pores (<100nm) occupies the mainly specific surface areas and pore volume while the seepage pores (>100nm) only account for 34% of total pore volume. (2) The lamprophyre open pores are mainly slit-like/plate-like and ink-bottle-shaped pores on a two-dimensional level. The lamprophyre 3D pore structure shows more stochastic and anisotropic extension on the …

Taxonomy And Paleolimnology Of The Bacillariophyceae (Diatoms) From Lacustrine Sequences In The Pliocene Hadar Formation, Afar Regional State, Ethiopia, Joseph Mohan

All-Inclusive List of Electronic Theses and Dissertations

A taxonomic description of three novel species and update of two previously described Bacillariophyta (Diatom) species from the Pliocene Hadar Formation, Afar Depression of Ethiopia is presented. The taxonomic description preludes a quantitative reconstruction of the environmental conditions of Paleolake Hadar, also presented herein. This thesis plays an integral role in the Hominin Sites and Paleolakes Drilling Project (HSPDP), an interdisciplinary investigation into the climate, environment, and ecological context of human and hominin evolution in East Africa. The HSPDP aims to provide a continuous record of paleo-conditions that influenced hominin evolution. This thesis focuses on the Northern Awash Werenso drill-core …

Marine Effects On Vertical Electrical Soundings Along Shorelines, Emi̇n Uğur Ulugergerli̇

Turkish Journal of Earth Sciences

Onshore applications of direct current resistivity (DCR) along shorelines suffer a short-circuit-like phenomenon due to electrical current flowing through a more conductive body of water rather than ground. Our study of the numerical simulation of DCR data with a three-dimensional forward model demonstrated that the apparent resistivity was reduced as a function of the sea depth and the distance of measurement site to the shoreline. Furthermore, it was concluded that the "marine effects" on DCR data (i.e. reduction in apparent resistivity) become nonnegligible as the ratio of half-electrode expansion (AB/2) to the distance to the shoreline is larger than one. …

Paleoenvironment Of The Late Oligocene From The Kağızman-Tuzluca Basin (Northeastern Anatolia) Based On The Micro- And Macrofloras, Mi̇ne Sezgül Kayseri̇ Özer, Recep Hayretti̇n Sancay, Şevket Şen, Koray Sözeri̇, Gregoire Métais, Turhan Ayyildiz, Baki̇ Erdoğan Varol

Turkish Journal of Earth Sciences

The Kağızman-Tuzluca Basin in East Anatolia is still poorly documented for its stratigraphy and in particular its paleofloral assemblages. In this study, the microfloras from the Kağızman-Kötek and Kömürlü areas and the macroflora from the Tuzluca area in this basin have been defined to overcome this deficiency. Sedimentary sequences of the Kağızman-Kömürlü area have been deposited in terrestrial conditions different from the sequences of the Kağızman-Kötek and Tuzluca areas, which were deposited in brackish conditions near a shallow marine environment. Paleovegetation in eastern Anatolia is represented by mixed mesophytic and coniferous forests restricted to high and middle altitudes (e.g. Pinus, …

Groundwater Management Of A Highly Dynamic Karst By Assessing Baseflow And Quickflow With A Rainfall-Discharge Model (Dardennes Springs, Se France, Cécile Baudement, Bruno Arfib, Naomi Mazzilli, Johan Jouves, Thierry Lamarque, Yves Guglielmi

KIP Articles

This paper aims at characterizing the groundwater flow in a highly dynamic karst aquifer using a global modeling approach based on rainfall and spring discharge time series. The Dardennes aquifer (SE France) was studied as it is used for drinking water supply and it also produces karst flash floods that increase the flood hazard downstream in urban areas. Three years of data were available, including a normal rainy year, a wet year and a dry year. Modeling was performed with the new platform KarstMod, a rainfall-discharge model with calibration tools. The Dardennes aquifer model was structured with three interconnected reservoirs: …

Groundwater Management Of A Highly Dynamic Karst By Assessing Baseflow And Quickflow With A Rainfall-Discharge Model (Dardennes Springs, Se France), Cécile Baudement, Bruno Arfib, Naomi Mazzilli, Johan Jouves, Thierry Lamarque, Yves Guglielmi

KIP Articles

This paper aims at characterizing the groundwater flow in a highly dynamic karst aquifer using a global modeling approach based on rainfall and spring discharge time series. The Dardennes aquifer (SE France) was studied as it is used for drinking water supply and it also produces karst flash floods that increase the flood hazard downstream in urban areas. Three years of data were available, including a normal rainy year, a wet year and a dry year. Modeling was performed with the new platform KarstMod, a rainfall-discharge model with calibration tools. The Dardennes aquifer model was structured with three interconnected reservoirs: …

Geologic Map Of The Lima Peaks 7.5' Quadrangle, Beaverhead County, Montana, Betty Skipp, William J. Perry Jr., Susanne U. Jänecke

Geosciences Faculty Publications

The Lima Peaks quadrangle is located in southwestern Beaverhead County in southwestern-most Montana, near the southern terminus of the Beaverhead Mountains (fig. 1). Rocks and deposits of Mississippian through Quaternary age are present along the eastern margin of the Cretaceous to early Tertiary Sevier fold-and-thrust belt. This area is structurally complex because rocks of older, Laramide Blacktail-Snowcrest uplift (Perry and others, 1988; Skipp, 1988; Lonn and others, 2006).

Antibiotic Resistance Genes In Minnesota Soil Bacteria From Areas Of High And Low Ferric Iron, Gunner L. Drossel, Presley Martin Phd

Departmental Honors Projects

Naturally-occurring antibiotic resistance genes in soil bacteria represent a potentially important reservoir of genes that could contribute to antibiotic resistance of human pathogens. It has been reported that over 40 genes in bacterial genomes are controlled by concentrations of ferric iron. We examined the effect of soil metal content on the level of resistance to two antibiotics, ampicillin (Amp) and tetracycline (Tet), and the presence of multiple genes that code for efflux pump-mediated resistance. These pumps act to export toxins (e.g. heavy metals and antibiotics, perhaps). Because of this, growth in heavy metal-contaminated soils might select for antibiotic resistance. Ninety-six …

Geoarchaeology Of Ancient Site Settlement At Eastern Thungkula Ronghai, Srisaket And Yasothon Provinces In Northeast Thailand, Patcharaporn Ngernkerd

Chulalongkorn University Theses and Dissertations (Chula ETD)

Archaeology in Thailand is generally associated with geological application. In this work, the relationship between ancient site settlement and geomorphology is carried out under geoarchaeological approach. Study area is located on the eastern Thungkula Ronghai (TKR) bordered between Mun and Chi Rivers in Srisaket and Yasothon where many archaeological sites have been found. The research focuses on aerial photograph and satellite imaginary interpretation, application of ground penetrating radar (GPR) on sand splays morphology and GIS software to analyze ancient site location on geomorphology for reconstructing the relationship of human past with their landscapes. Results indicate the interesting landforms of the …

Structural And U-Pb Detrital Zircon Geochronologic Constraints On The Origin Of The Condrey Mountain Schist, California - Oregon, Joseph Reid Coons

Masters Theses

"The Condrey Mountain Schist (CMS) of the Klamath Mountains (northern California and southern Oregon) represent low grade oceanic and terrigenous sediments thrust beneath higher grade ophiolitic rocks of the Rattlesnake Creek Terrane (RCT). This study presents new U-Pb detrital zircon dates from the CMS, and from the possibly correlative basin rocks of the Galice Formation and accretionary rocks of the South Fork Mountain Schist. The Galice Formation yields a maximum depositional age of ca. 152 Ma with prominent date distributions of ca. 150-200 Ma (39% of analyzed grains), 200-600 Ma (1%), 600 - 1000 Ma (2%), and 1000-3200 Ma (58%). …

Constraining Times Of Extension In The Southern Rio Grande Rift And Basin And Range Using Apatite And Zircon (U-Th)/He Thermochronology, Julian Biddle

Open Access Theses & Dissertations

The Rio Grande rift and the Basin and Range are adjacent extensional domains that have evolved contemporaneously in western North America. Although the rift is often considered to be the easternmost boundary of Basin and Range extension, there is geologic and geophysical evidence that suggests the two are discrete provinces. Existing low-temperature thermochronologic data indicate that a period of synchronous extension occurred across the entire length of the rift from ~25-10 Ma. However, these studies were more focused on the northern and central sections of the rift, and thermochronologic data remains sparse in southern New Mexico. We collected rock samples …

Presidents Lack The Authority To Abolish Or Diminish National Monuments, Mark Squillace, Eric Biber, Nicholas S. Bryner, Sean B. Hecht

Publications

By any measure, the Antiquities Act of 1906 has a remarkable legacy. Under the Act, 16 presidents have proclaimed 157 national monuments, protecting a diverse range of historic, archaeological, cultural, and geologic resources. Many of these monuments, including such iconic places as the Grand Canyon, Zion, Olympic, and Acadia, have been expanded and redesignated by Congress as national parks. While the designation of national monuments is often celebrated, it has on occasion sparked local opposition, and led to calls for a President to abolish or shrink a national monument that was proclaimed by a predecessor. This article examines the Antiquities …

Senkaku/Diaoyu: Are They Islands, Constantinos Yiallourides

The International Lawyer

No abstract provided.

Exploring For The Coronado Trail: The 2017 Report; A Case Study As A Model For Historians, Nugent Brasher

New Mexico Historical Review

No abstract provided.