Digital Commons Network^™

Cultural Resources Monitoring Of Geological Study Units In Padre Canyon Area Southeast Of El Paso, Hudspeth County, Texas, David H. Greenwald, Jeffery Hanson

Index of Texas Archaeology: Open Access Gray Literature from the Lone Star State

DMG Four Corners Research, Inc. conducted cultural resource monitoring at seven proposed geological study loci (shallow drill holes and excavation units of less than 50 feet) at the request of JOBE Materials, L.P., on Texas GLO lands southeast of El Paso, in Hudspeth County, Texas (Figure 1.1). Mineral rights are owned by the State of Texas. The geological study loci were confined to Texas GLO Block 10, Sections 15, 21 and 22 (Figure 1.2) within 1323 acres, although a larger permit area was granted. The project was initiated on January 23, 2014, and completed on January 24, 2014. No named …

Determining The Main Strand Of The Eskişehir Strike-Slip Fault Zone Using Subsidiary Structures And Seismicity: A Hypothesis Tested By Seismic Reflection Studies, Gürol Seyi̇toğlu, Gali̇p Berkan Ecevi̇toğlu, Bülent Kaypak, Yücel Güney, Muammer Tün, Korhan Esat, Uğur Avdan, Abi̇di̇n Temel, Alper Çabuk, Sevgi̇ Telsi̇z, Güzi̇n Gülsev Uyar Aldaş

Turkish Journal of Earth Sciences

The Eskişehir Fault Zone is one of the major neotectonic structures of Turkey, extending from İnegöl (Bursa) to Cihanbeyli (Konya). The fault zone presents a considerable seismic risk for the city of Eskişehir but the exact locations of active segments and the source of the major seismic event, the 1956 earthquake (M = 6.5) that occurred in the instrumental period (from 1900 to 2013), have been debated in recent literature. The structural data obtained from field studies indicate an approximately N60W-trending main strand of the right lateral strike-slip Eskişehir Fault Zone. This trend corresponds to the en echelon bends on …

“The Great And Terrible Judgments Of The Lord”: Destruction And Disaster In 3 Nephi And The Geology Of Mesoamerica, Neal Rappleye

Interpreter: A Journal of Latter-day Saint Faith and Scholarship

Over recent decades, several Latter-day Saint scholars and scientists have offered analysis and comparison to geologic events and the destruction recorded in 3 Nephi 8-9. Jerry Grover makes an important contribution to this literature as he provides background on geologic processes and phenomena, details the geologic features of the Tehuantepec region (Mesoamerica), and applies this information to not only the description of 3 Nephi 8-9, but other incidents in the Book of Mormon likely connected to geologic events. In doing so, Grover yields new insights into the narratives he examines, and adds clarity to geographic details that have been subject …

Early Permian Conodont Fauna And Stratigraphy Of The Garden Valley Formation, Eureka County, Nevada, Bruce R. Wardlaw, Dora M. Gallegos, Valery V. Chernykh, Walter S. Snyder

Geosciences Faculty Publications and Presentations

The lower part of the Garden Valley Formation yields two distinct conodont faunas. One of late Asselian age dominated by Mesogondolella and Streptognathodus and one of Artinskian age dominated by Sweetognathus with Mesogondolella. The Asselian fauna contains the same species as those found in the type area of the Asselian in the southern Urals including Mesogondolella dentiseparata, described for the first time outside of the Urals. Apparatuses for Sweetognathus whitei, Diplognathodus stevensi, and Idioprioniodus sp. are described. The Garden Valley Formation represents a marine pro-delta basin and platform, and marine and shore fan delta complex deposition. …

Mass Spectrometric Studies On Petroleum Asphaltenes And Organosulfur Compounds, On Functional-Group Selective Ion-Molecule Reactions And On Gas-Phase Reactivity Of Meta-Benzynes Toward Amino Acids, Weijuan Tang

Open Access Dissertations

Mass spectrometry has found a wide variety of applications in many fields of study, such as fundamental chemistry, biological science, food and fuels, advanced materials, etc. Due to its high sensitivity, selectivity and speed, mass spectrometry provides an invaluable tool for direct mixture analysis. When coupled with separation methods, such as gas chromatography or high performance liquid chromatography, analysis of minor components in complex mixtures is possible. In addition to the molecular weight information, mass spectrometers can provide structural information for the ionized analyte molecules. However, mass spectrometric analysis of complex mixtures is not without challenges, such as suitable evaporation/ionization …

Evaluating Methods Of Field-Based 3d Visualization And Their Application To Mapping Metamorphic Terranes: An Example From The Panamint Mountains, California, Jade Ashley Brush

Open Access Theses & Dissertations

Field geology has traditionally relied on 2D, paper-based workflows, but digital mapping techniques are rapidly replacing these outdated methods because they allow for more efficient and accurate mapping. This research applies digital mapping techniques and two terrestrially-based 3D visualization technologies, photogrammetry and Light Detection and Ranging (LiDAR), to the study of metamorphic terranes in the Panamint Mountains, California. This study reports on the spatial accuracy of TINs (triangulated irregular networks) generated from both photogrammetry and ground-based LiDAR using a terrestrial laser scanner (TLS) and discusses how spatial accuracy can be increased. Two levels of comparison were used to test spatial …

The 2015 Maritime Doctrine Of The Russian Federation, Russia Maritime Studies Institute, Anna Davis

RMSI Research

The 2015 Maritime Doctrine of the Russian Federation is arguably one of the most important doctrinal statements to emerge from that country in recent years. It is in any case Russia’s most important recent articulation of its maritime interests and goals, and therefore provides insight into how Moscow envisions Russia’s global role. Yet because of the challenges of reading Russian and the absence of a publicly available translation of this essential document, western understanding of it is largely limited.

Thermal Perturbations Beneath The Incipient Okavango Rift Zone, Northwest Botswana, Khumo Leseane, Estella A. Atekwana, Kevin L. Mickus, Mohamed G. Abdelsalam, Elisha M. Shemang, Eliot A. Atekwana

College of Natural and Applied Sciences

We used aeromagnetic and gravity data to investigate the thermal structure beneath the incipient Okavango Rift Zone (ORZ) in northwestern Botswana in order to understand its role in strain localization during rift initiation. We used three-dimensional (3-D) inversion of aeromagnetic data to estimate the Curie Point Depth (CPD) and heat flow under the rift and surrounding basement. We also used two-dimensional (2-D) power-density spectrum analysis of gravity data to estimate the Moho depth. Our results reveal shallow CPD values (8-15 km) and high heat flow (60-90 mW m^-2>) beneath a ~60 km wide NE-trending zone coincident with major …

Mesoamerican Sacred Geography And Archeological Landscapes: A Case Study In The Volcanic Highlands Of Michoacan, Mexico, Jarod Scott Drozdowski

All Master's Theses

US and Mexican teams have investigated the La Alberca Structure Complex with the community of Parangaricutiro. Their forest reserve, located near San Juan Nuevo in Michoacan, Mexico, contains several volcanic cones, including the famous Paricutin cinder cone. Sixteen earthen-rock structures have been mapped using aerial photography, GPS, GIS, and total station surveys. The structures range from 300 to 2,400 cubic meters in volume. The larger mound-like structures are traditionally called yacatas. Early radiocarbon dates for two of the three central structures (ca. 5200-2000 BCE) bracket dates for the Late Archaic burial in the La Alberca caldera. Arrangements of the larger …

Post-Treatment Assessment Of Hydraulic Fracturing With Integrated Modeling Of Natural Fracture Distribution, Ping Puyang

LSU Master's Theses

Hydraulic fracturing has been serving as the principal reservoir stimulation technique for decades to improve production capacities of low permeability formations. On the other hand, through core and outcrop studies, advanced logging tools, microseismic fracture mapping and well testing analysis, it has been further revealed that many of the shale gas formations are naturally fractured. The presence of natural fractures and their interactions with hydraulic fractures must be taken into consideration while designing fracturing treatment. Although most natural fractures are cemented by precipitations during diagenesis, they may be reactivated during hydraulic fracturing and serve as weak paths for fluid flow …

Geochemistry And Petrography Of Igneous Components Of The Dalles Formation In The Dufur West Quadrangle, Oregon, Heather H. Herinckx

University Honors Theses

The Dalles Formation is a sequence of volcanic, volcaniclastic and sedimentary deposits of the late Miocene to Pliocene. The unit stretches along the eastern flanks of Mount Hood from Maupin, northward to the Columbia River, near The Dalles, Oregon (Figure 1). The Dalles Formation consists of lavas that are generally dacitic in composition and are composed of block-and-ash flows, debris-flows, and reworked fluvial sediments. Past workers have mapped the unit as the Dalles Formation "Undivided". The scope of this project has been to investigate the geochemical and petrographic characteristics and whether they may suggest distinct units. A section of the …

Discovery Islands, Earth Islands: The Theory And Practice Of Island Imagery In Environmental Thought, Naomi A. Bosch

Pomona Senior Theses

Earth Island is a core metaphor of activist thought often applied in Environmental Analysis and related fields as a tool for thinking about the planet’s limited resources. It puts forth the claim that if only we thought of the earth as more like an island, we would better understand our connectivity to other living things and be drawn to develop better and more extensive practices of environmental stewardship. This thesis uses personal accounts of environmental life philosophies and political practices collected from residents of the Discovery Islands in British Columbia as a site for analytical comparison between the theory and …

Reinterpretation Of The Mesozoic Thrust Complex Of The Southern Spring Mountains, Nevada, Warren Harding Allen

Open Access Theses & Dissertations

The east verging Keystone thrust fault in the southern Spring Mountains west of Goodsprings, Nevada, is mapped with a sharp bend in its trace near Keystone Wash. This bend was previously explained in the context of out-of-sequence thrusting and a salient-recess relationship along the thrust system; a simple redirection of the Keystone thrust to a north verging thrust. Recent geochronological studies indicate that the east verging Keystone thrust to the north of Keystone Wash formed between 83-103Ma. Approximately 5 kilometers to the east a north verging branch of the fault system overlies rocks as young as 99Ma. At the location …

Total Variation Regularization Of Geodetically And Geologically Constrained Block Models For The Western United States, Eileen L. Evans, John P. Loveless, Brendan J. Meade

Geosciences: Faculty Publications

Geodetic observations of interseismic deformation in the Western United States provide con- straints on microplate rotations, earthquake cycle processes, and slip partitioning across the Pacific–North America Plate boundary. These measurements may be interpreted using block models, in which the upper crust is divided into microplates bounded by faults that accumulate strain in a first-order approximation of earthquake cycle processes. The number and geometry of microplates are typically defined with boundaries representing a limited subset of the large number of potentially seismogenic faults. An alternative approach is to include a large number of potentially active faults bounding a dense array of …

Developing A Grid-Based Surrogate Reservoir Model Using Artificial Intelligence, Shohreh Amini

Graduate Theses, Dissertations, and Problem Reports (ETD)

Reservoir simulation models are the major tools for studying fluid flow behavior in hydrocarbon reservoirs. They are now being used extensively in performing any kind of studies related to fluid production/injection in hydrocarbon bearing formations. Reservoir simulation models are constructed based on geological models, which are developed by integrating data from geology, geophysics, and petro-physics. This data comes from observation, measurements, and interpretations.;Integration of maximum data from geology, geophysics, and petro-physics, contributes to building geologically complex and more realistic models. As the complexity of a reservoir simulation model increases, so does the computation time. Therefore, to perform any comprehensive study …

Imaging Beneath Standing Bodies Of Water In Karst Terrain, Abdulrahman Masfer Alotaibi

Doctoral Dissertations

"Side scan sonar and down scan sonar, sub bottom profiling, electrical resistivity tomography profiling (underwater cables), and continuous resistivity profiling (towed cable) surveys were conducted to characterize the lake sediments (rock and soil) beneath the man-made Little Prairie Lake, in central Missouri. Sub bottom profiling and electrical resistivity (with marine cables and towed cable) were used to determine variability in the lithology and thickness of sediments (soil and rock) beneath the lake, while side scan sonar was used to map the variations in the lithology/nature of exposed lakebed sediments and to locate the potential hazard of trees. Down scan sonar …

Receiver Function Analysis To Study Crustal Structure Of The Northern Nepal And Tibetan Plateau, Mohan Pant

Open Access Theses & Dissertations

The teleseismic P-waveform receiver function analysis is a commonly used technique in earthquake seismology to study the crustal structure beneath a broadband seismic station. To understand the structure of the Northern Nepal and Tibetan plateau different studies have used the receiver function method to estimate the Moho depth and Vp/Vs ratio. The value suggested was ~ 30 km in the south and the ~ 75 km in the north. Other studies have used teleseismic body wave data to perform the travel time residuals to model the lithosphere structure. In our study, we analyzed data from 261 seismic stations to establish …

A Geophysical Study Of The Castle Mountain Fault System And Matanuska-Susitna Valley Near Anchorage, Alaska, Shane Michael Schinagel

Open Access Theses & Dissertations

The Castle Mountain Fault (CMF) is the closest (~50 km) active fault to Anchorage, Alaska. Located within the Matanuska and Susitna (Matsu) Valleys, the CMF shows repeated, unmistakable evidence for Holocene motion. Recent geologic studies estimate that this fault is capable of producing earthquakes of magnitude 7.0 - 7.1. The Anchorage metropolitan area (which includes the Matsu Valley) contains most of Alaska's population as well as vital shipping and transportation facilities that serve much of inland Alaska. Expected magnitude >7 earthquakes pose seismic hazards to the expanding Anchorage area.

While several mapping and trenching studies have been conducted along the …

The Impacts Of Climate, Land Use, Economics, And Conservation Policies On The Hydrology Of The Devils Lake Basin, Gehendra Kharel

Theses and Dissertations

Devils Lake (DL), a closed-basin lake in northeastern North Dakota of the USA, has risen 10 m since 1991 exhibiting a costly, lengthy and litigious water management wicked problem in the region. With nearly US $1.5 billion already spent in flood mitigation, DL is less than 2 m from its uncontrolled overspill to the nearby Sheyenne River, a tributary of the Red River of the North that connects to Lake Winnipeg in Canada. In this study, three important concerns related to DL water management are being addressed: (1) Are currently implemented outlets capable of mitigating potential risks posed by climate …

Fish Assemblage Structure, Distribution, And Trophic Ecology At Northwestern Gulf Of Mexico Banks, Todd Langland

LSU Doctoral Dissertations

The northwest Gulf of Mexico (Gulf) shelf-edge banks both provide unique hard bottom habitat and support the northernmost coral reefs on the North American continental shelf in a region that is generally characterized by low relief, soft sediments. The habitat value of many of these banks has led to their designation as Habitat Areas of Particular Concern (HAPC) and the Flower Garden Banks National Marine Sanctuary (FGBNMS). However, little is known about the fisheries resources and dynamics of the banks outside the FGBNMS. This study had three main objectives: 1) define reef fish assemblages at northwestern Gulf shelf-edge banks and …