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Articles 31 - 56 of 56
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Relationship Between Fault Zone Architecture And Groundwater Compartmentalization In The East Tintic Mining District, Utah, Sandra Myrtle Conrad Hamaker
Relationship Between Fault Zone Architecture And Groundwater Compartmentalization In The East Tintic Mining District, Utah, Sandra Myrtle Conrad Hamaker
Theses and Dissertations
The Eureka Lilly fault zone provides an impermeable barrier for groundwater flow in the East Tintic mining district. The fault zone separates two distinct groundwaters that have different temperatures, compositions, and potentiometric surfaces. The damage zone of the fault is an extensive network of interconnected open fractures and fault intersections that provide conduits for groundwater flow in otherwise impermeable units. The fault core breccia has been re-cemented and mineralized, which eliminates porosity in the rock by creating a thick impermeable zone, which has compartmentalized groundwaters across the fault zone. The compartmentalization of groundwater shows that fault zone variability (from strain …
Geologic Map Of The Golden Throne Quadrangle, Wayne And Garfield Counties, Utah, Daniel H. Martin
Geologic Map Of The Golden Throne Quadrangle, Wayne And Garfield Counties, Utah, Daniel H. Martin
Theses and Dissertations
The Golden Throne Quadrangle is located within Capitol Reef National Park, south-central Utah. Geologic mapping of this 1:24,000 scale 7.5 minute quadrangle began in 2003 as the National Parks Service desired to have geologic maps at this scale produced within the park. Stratigraphically, ten bedrock formations and ten Quaternary deposits are exposed within the Golden Throne Quadrangle. Geologic formations range in age from Permian to Jurassic. This map contains details not included on previous geologic maps including; the members of the Carmel, Chinle, and Moenkopi Formations. Additionally, the Page Sandstone is herein mapped as an independent unit. Structurally the Golden …
Effects Of Hurricane Fault Architecture On Groundwater Flow In The Timpoweap Canyon Of Southwestern, Utah, Sarah J. Dutson
Effects Of Hurricane Fault Architecture On Groundwater Flow In The Timpoweap Canyon Of Southwestern, Utah, Sarah J. Dutson
Theses and Dissertations
Hydrogeologically important features of fault zones include undamaged country rock, the damage zone, and the core zone. Fault cores generally have low porosity and permeability, and often act as a barrier to groundwater flow. The damage zone, by contrast, consists of small faults and fracture networks, which can act as conduits. Timpoweap Canyon near Hurricane, Utah has superb exposures of the fault core and damage zone of the Hurricane Fault. Also within the canyon, springs discharge from the damage zone into the Virgin River, providing an ideal natural laboratory for the study of groundwater discharge from a fault zone. The …
Upper Mantle Reflectivity Beneath An Intracratonic Basin: Insights Into The Behavior Of The Mantle Beneath Illinois Basin., Maxwell Sunday Okure
Upper Mantle Reflectivity Beneath An Intracratonic Basin: Insights Into The Behavior Of The Mantle Beneath Illinois Basin., Maxwell Sunday Okure
Theses and Dissertations
Reflectivity images of the lower crust and uppermost mantle beneath the Illinois basin have been derived from reprocessing of several hundred kilometers of industry seismic reflection data using extended vibroseis recorrelation. The recorrelation was based on extending an originally 4-s correlated record, acquired with a 16-s sweep from 14 to 126 Hz, to the absolute limit of the full 20 s (~70 km) listening travel time. The reconstructed bandwidth includes frequency components suitable for imaging structures from signals received from both sedimentary basin reflectors and those received from reflectors in the deep crust and upper mantle. Mantle and sub-Moho reflectors …
A Uintan (Late Middle Eocene) Flora And Fauna From The Uinta Basin, Utah, Stephen Dee Sandau
A Uintan (Late Middle Eocene) Flora And Fauna From The Uinta Basin, Utah, Stephen Dee Sandau
Theses and Dissertations
Late Middle Eocene time marks one of the most dynamic periods of the Paleogene in the western interior of North America. Analysis of an extensive, new collection of plant, invertebrate, and vertebrae fossils from the Uinta Formation in the Uinta Basin, south of Myton, Utah, USA, provides evidence of environmental change. Paleobotanical specimens are preserved in late stage Uinta Lake sediments and coarse-grained fluvial sediments which are stratigraphically 650 to 660 m above the Green River Formation. Deposition rates estimates of 18 to 55 cm/kyr, for Uinta Lake sediments in the Uinta Basin suggest a period of 1.18 Ma to …
A Conceptual Model Of Groundwater Flow At The Midway, Utah Fish Hatchery As Constrained By Geochemical, Physical Hydrogeological, And Geophysical Methods, Camille Durrant
A Conceptual Model Of Groundwater Flow At The Midway, Utah Fish Hatchery As Constrained By Geochemical, Physical Hydrogeological, And Geophysical Methods, Camille Durrant
Theses and Dissertations
In addition to a loss of potential revenues from Utah's $393 million sport fishing industry, the state expends millions of dollars every year on costs associated with whirling disease mitigation and prevention. A state fish hatchery at Midway, Utah was closed when the shallow unconfined aquifer being used for fish culture by spring discharge was deemed to be contaminated by whirling disease. An alternative water source may exist in a confined aquifer below this contaminated unconfined aquifer. However, the complex hydrostratigraphy presents a challenge in determining if this source is a viable resource for fish culture. Geological, physical, chemical, geophysical, …
An Unusually Large Aulocopella Winnipegensis And Associated Demosponges From The Upper Ordovician Beaverfoot Formation, Southeastern British Columbia, J. Keith Rigby, Paul A. Johnston
An Unusually Large Aulocopella Winnipegensis And Associated Demosponges From The Upper Ordovician Beaverfoot Formation, Southeastern British Columbia, J. Keith Rigby, Paul A. Johnston
Faculty Publications
An unusually large specimen of the rare digitate to bladed Aulocopella winnipegensis Rauff and three relatively normal sized specimens of ashtray-shaped Hudsonospongia? sp. constitute the first record of demosponges from the Upper Ordovician Beaverfoot Formation in southeastern British Columbia and the first record of these taxa from western Canada. Gross form and canal structure are well preserved, but dolomitization and (or) coarse microsphaeroidal silicification have obliterated spicules and other structural details. We interpret these sponges as epifaunal recliners, without means of attachment to the substrate, a life mode rarely encountered in the modern sponge biota.
Mesembrioxylon Obscurum, A New Combination For Araucarioxylon? Obscurum Knowlton, From The Upper Jurassic Morrison Formation, Wyoming, David A. Medlyn, William D. Tidwell
Mesembrioxylon Obscurum, A New Combination For Araucarioxylon? Obscurum Knowlton, From The Upper Jurassic Morrison Formation, Wyoming, David A. Medlyn, William D. Tidwell
Western North American Naturalist
A reinvestigation of the type specimen of Araucarioxylon? obscurum Knowlton (1900) from the Upper Jurassic Morrison Formation in the Freezeout Hills of Wyoming has determined that this fossil should be transferred to Mesembrioxylon Seward (1919) as M. obscurum comb. nov. (Knowlton) Medlyn and Tidwell. Knowlton (1900), who was uncertain of its appropriate generic disposition, tentatively referred the wood to Araucarioxylon because it had obscure growth rings and relatively low ray height. Reexamination of Knowltons slides demonstrates that the wood has uniseriate, rarely biseriate rays, podocarpoid pitting, and diffuse axial parenchyma, none of which Knowlton mentioned. Tracheary pitting is mostly separate, …
Gis Integration Of Remote Sensing And Electrical Sounding Data For Hydrogeological Exploration
Gis Integration Of Remote Sensing And Electrical Sounding Data For Hydrogeological Exploration
Journal of Spatial Hydrology
Interpretation of hydrogeological data frequently involves assimilating information from many sites each with a unique geographical location. Interpretation of these data requires that the spatial location be incorporated into the analysis. Geographic Information System (GIS) can be used efficiently for this purpose where hydrogeological data having different spatial identity can be analyzed objectively using different logical approaches. In the present paper GIS is used for the analysis of hydrogeological data acquired from remote sensing and surface geophysical techniques for the assessment of groundwater condition of a soft rock terrain in Midnapur District, West Bengal, India. Indian Remote Sensing (IRS-1B) LISS-II …
A New Occurrence Of Archaeoscyphia Pulchra (Bassler) From The Ordovician Of Western Canada, J. Keith Rigby, Godfrey S. Nowlan, Peter A. Rowlands
A New Occurrence Of Archaeoscyphia Pulchra (Bassler) From The Ordovician Of Western Canada, J. Keith Rigby, Godfrey S. Nowlan, Peter A. Rowlands
Faculty Publications
A few specimens of the ornate anthaspidellid demosponge, Archaeoscyphia pulchra (Bassler), have been collected from the Lower Ordovician Outram Formation or Skoki Formation, from a saddle at the head of South Rice Brook in northeastern British Columbia. This is the first report of the flanged-appearing annulate, steeply obconical sponge in western Canada, although it has been reported from the Mingan Islands of Quebec and was initially described from Nevada, in the western United States. The taxon has also been reported as other species of Archaeoscyphia from Ordovician rocks of Missouri and from the San Juan region of Argentina.
Taphonomy And Significance Of Jefferson's Ground Sloth (Xenarthra: Megalonychidae) From Utah, H. Gregory Mcdonald, Wade E. Miller, Thomas H. Morris
Taphonomy And Significance Of Jefferson's Ground Sloth (Xenarthra: Megalonychidae) From Utah, H. Gregory Mcdonald, Wade E. Miller, Thomas H. Morris
Western North American Naturalist
While a variety of mammalian megafauna have been recovered from sediments associated with Lake Bonneville, Utah, sloths have been notably rare. Three species of ground sloth, Megalonyx jeffersonii, Paramylodon harlani, and Nothrotheriops shastensis, are known from the western United States during the Pleistocene. Yet all 3 are rare in the Great Basin, and the few existing records are from localities on the basin margin. The recent discovery of a partial skeleton of Megalonyx jeffersonii at Point-of-the-Mountain, Salt Lake County, Utah, fits this pattern and adds to our understanding of the distribution and ecology of this extinct species. Its occurrence …
Planning Research On Oman: The End Of Lehi's Trail, Terry B. Ball, Kent S. Brown, Arnold G. Green, David J. Johnson
Planning Research On Oman: The End Of Lehi's Trail, Terry B. Ball, Kent S. Brown, Arnold G. Green, David J. Johnson
Journal of Book of Mormon Studies
In February 1998, five Brigham Young University professors spent more than a week together in southern Oman to collect data for future research projects in the area, which seems to correspond to the end of Lehi’s trail in the Old World. Future research must be performed in a professional manner and seek to reconstruct that part of the world in 600 BC. Botanical, archaeological, chronological, mineralogical, geological, and inscriptional studies in the area would depend on acquiring sponsors in Oman and on the availability of resources.
In The Thirty And Fourth Year: A Geologist's View Of The Great Destruction In 3 Nephi, Bart J. Kowallis
In The Thirty And Fourth Year: A Geologist's View Of The Great Destruction In 3 Nephi, Bart J. Kowallis
BYU Studies
Geological studies and eyewitness accounts of volcanic activity show the likelihood that the massive destruction reported in 3 Nephi was caused by an explosive volcanic eruption.
Additions To Knowledge Of Paleocene Mammals From The North Horn Formation, Central Utah, Richard L. Cifelli, Nicholas J. Czaplewski, Kenneth D. Rose
Additions To Knowledge Of Paleocene Mammals From The North Horn Formation, Central Utah, Richard L. Cifelli, Nicholas J. Czaplewski, Kenneth D. Rose
Great Basin Naturalist
The distinctive but inadequately known Paleocene faunas of central Utah are significant in that they sample a time interval not well represented by sequences in other areas. New materials from the Wagon Road (late Puercan) and Dragon (early Torrejonian) local faunas, North Horn Formation, provide additional information on the composition of the assemblages and systematics of included mammal taxa. The proteutherian ?Propalaeosinopa is recorded for the first time, from the Wagon Road fauna, indicating a significant extension for the enigmatic family Pantolestidae, otherwise first known from the Torrejonian. Associated premolars of Aphronorus simpsoni, a pentacodontid proteutherian from the …
Habitat Requirements For Erigeron Kachinensis, A Rare Endemic Of The Colorado Plateau, Loreen Allphin, Kimball T. Harper
Habitat Requirements For Erigeron Kachinensis, A Rare Endemic Of The Colorado Plateau, Loreen Allphin, Kimball T. Harper
Great Basin Naturalist
Erigeron kachinensis is a rare endemic of the Colorado Plateau in southeastern Utah. This perennial composite grows in small, isolated populations at seeps and alcoves arising along canyon walls in Cedar Mesa Sandstone substrates. Characteristics of six Erigeron kachinensis sites in Natural Bridges National Monument, San Juan County, Utah, were studied to determine habitat requirements for this species. Sites were analyzed with respect to geology, soil chemistry, physical properties, and vegetational characteristics. The alcoves studied were very saline, often with soil surfaces covered with a white crust of salt. Living cover was enhanced by perennially moist soils, diminished amounts of …
A Checklist Of The Vascular Plants Of The House Range, Utah, Ronald J. Kass
A Checklist Of The Vascular Plants Of The House Range, Utah, Ronald J. Kass
Great Basin Naturalist
A checklist of the vascular plants of the House Range, Juab and Millard counties, Utah, is presented. A flora of 373 species and infraspecific taxa in 231 genera and 60 families are reported. The geology, physiography, climate, and plant communities are briefly discussed. Several endemics occur in the study area and a new taxon has been described.
Flora Of The Orange Cliffs Of Utah, L. M. Shultz, E. E. Neely, J. S. Tuhy
Flora Of The Orange Cliffs Of Utah, L. M. Shultz, E. E. Neely, J. S. Tuhy
Great Basin Naturalist
The vascular flora of the Orange Cliffs area, defined here as part of the Colorado Plateau floristic province, harbors approximately 209 species in 123 genera and 49 families. A species checklist is provided with a discussion of physical and floristic aspects of the region. The flora is compared statistically to the San Rafael Swell flora, which is also a subset of the Colorado Plateau. We define six vegetation types and three edaphic communities; these are described and mapped. Of eleven endemic plant species in the Orange Cliffs, three are local and rare. Sites for Astragalus nidularius, A. moencoppensis, and Xylorhiza …
Uncompahgre Dinosaur Fauna: A Preliminary Report, James A. Jensen
Uncompahgre Dinosaur Fauna: A Preliminary Report, James A. Jensen
Great Basin Naturalist
A diverse late Jurassic dinosaur fauna, discovered in western Colorado in 1963, contains many undescribed taxa that may represent evolutionary trends at the generic level not previously reported from the Morrison Formation. A preliminary faunal list is given. Bones of the largest known dinosaur, Ultrasaurus, are present as are a variety of small animals, including Pterosaurs, in which one sacrum displays avianlike fused sacral neural spines. A new family, the Torvosauridae, erected, based on the genus Torvosaurus that is redescribed.
A Mammalian Humerus From The Upper Jurassic Of Colorado, Donald R. Prothero, James A. Jensen
A Mammalian Humerus From The Upper Jurassic Of Colorado, Donald R. Prothero, James A. Jensen
Great Basin Naturalist
The first reported mammal fossil from Dry Mesa Quarry (Upper Jurassic Morrison Formation, Mesa County, Colorado) is the distal end of a right humerus. It is very similar to humeri described by Jenkins (1973) from the Morrison Formation at Como Bluff, Wyoming. It has a distinct ulnar condyle and a spiral humero-ulnar joint, both features found in prototherian mammals but not in therians.
Physical And Cultural Environment Of Utah Lake And Adjacent Areas, Richard H. Jackson, Dale J. Stevens
Physical And Cultural Environment Of Utah Lake And Adjacent Areas, Richard H. Jackson, Dale J. Stevens
Great Basin Naturalist Memoirs
Utah Lake and its surrounding area have a rich natural and cultural background. The moderate climate, abundant fresh water, and fertile soils of Utah Valley made it an oasis to aboriginal dwellers as well as to the present inhabitants. An overview of the physical setting, geology, climate, human use, and recent history of Utah Lake is presented.
Geology Of Utah Lake: Implications For Resource Management, Willis H. Brimhall, Lavere B. Merritt
Geology Of Utah Lake: Implications For Resource Management, Willis H. Brimhall, Lavere B. Merritt
Great Basin Naturalist Memoirs
Utah Lake is a remnant of Lake Bonneville, from which it originated about 8,000 years ago. Analysis of sediment cores reveals significant variations in lake salinity and sedimentation rates. Notable examples are a very dry, high-salinity period between 5000 and 6000 years ago; a major freshening, wet period between 2700 and 3000 years ago; and a very dry, high-salinity period between 1400 and 2600 years ago, smaller variations are interspersed through the lake's history.
Long-term sedimentation rates are estimated at about 1 mm (0.039 in) per year in most of the lake, but post-colonization rates appear to be about 2 …
The Settlement And Development Of Wayne County, Utah, To 1900, Aldus Devon Chappell
The Settlement And Development Of Wayne County, Utah, To 1900, Aldus Devon Chappell
Theses and Dissertations
Although John C. Fremont had traveled through Wayne County, Utah, in the winter of 1853-54, it was not until 1874 that the first herd of cattle was introduced to Rabbit Valley. Reports soon circulated that here was a new land, conducive to the raising of livestock, and in 1876 about a dozen families entered the valley and began settlement. Families that moved into this area came from various places. Each settler came to make a new life, and came independently of the others. In 1895 the population was nearly 2,000, and by 1970 it had dropped to 1,486.
The Church …
The Population Dynamics Of Tanypus Stellatus Coquillett (Diptera: Chironomidae) In Goshen Bay Of Utah Lake, Dennis Kenji Shiozawa
The Population Dynamics Of Tanypus Stellatus Coquillett (Diptera: Chironomidae) In Goshen Bay Of Utah Lake, Dennis Kenji Shiozawa
Theses and Dissertations
The population dynamics of Tanypus stellatus in Goshen Bay of Utah Lake was investigated from July 18, 1973, to August 5, 1974. Samples were collected from three stations with an Ekman grab and a K-B corer. The samples were washed in a 110 micron nitex screen and then floated in a sucrose solution. The K-B core was used to determine the vertical distribution of Tanypus stellatus. Ninety-six percent of the Tanypus stellatus larvae are located in the top five centimeters; 99 percent are less than ten centimeters deep. The Ekman grab was used to study the population dynamics of the …
A Flora From The Dakota Sandstone Formation Near Westwater, Grand County, Utah, Samuel R. Rushforth
A Flora From The Dakota Sandstone Formation Near Westwater, Grand County, Utah, Samuel R. Rushforth
Theses and Dissertations
A cretaceous (Cenomanian) flora from the Dakota Sandstone Formation near Westwater, Grand County, Utah contains an admixture of ferns and angiosperms. The ferns of this flora are representative of an older Jurassic-Wealden vegetational type, whereas the angiosperms are typical of the modern vegetational type. Species of Gleichenia and Matonidium and Astralopteris coloradica represent the dominant forms in this flora. The Westwater flora contains fourteen genera including nineteen species and one variety. New species described from this flora include Asplenium dakotensis, Coniopteris westwaterensis and Ilex serrata.
An Ecological Study Of Waterfowl Habitat At Powell's Slough, Utah Lake, Bruce I. Barnett
An Ecological Study Of Waterfowl Habitat At Powell's Slough, Utah Lake, Bruce I. Barnett
Theses and Dissertations
This study attempts to give a preliminary survey of the marsh habitat in Powell's Slough near Utah Lake. The following aspects are treated: seasonal waterfowl utilization of the slough, productivity of nesting water-fowl, description of the vegetation, invertebrate analysis, and analysis of environmental factors that may influence the habitat.
A Microscopic Study Of An Early Pennsylvanian Flora From The Manning Canyon Shale, Utah, Max W. Blaylock
A Microscopic Study Of An Early Pennsylvanian Flora From The Manning Canyon Shale, Utah, Max W. Blaylock
Theses and Dissertations
The Manning Canyon Shale on the eastern slope of Lake Mountain in Utah County, Utah contains an Early Pennsylvanian flora within its upper shales. Many of these fossils appear to be new species. A microscopic study of the tissue remains can be of value in the further classification of these fossils. Selected fossils were macerated in hydrofluoric acid, and the residues were examined microscopically for tissue remains. Objects identified as fossil tissue remains were found in twenty five of the forty-eight specimens examined. Fibers, fiber tracheids, tracheids, and spores were isolated from fossils identified as Calamites. The spores were possibly …