Physical Sciences and Mathematics Commons^™

Early Miocene Quantitative Calcareous Nannofossil Biostratigraphy From The Tropical Atlantic, Waheed A. Albasrawi

Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research

Quantitative analysis for the Lower Miocene of Ocean Drilling Program Hole 959A from the West African margin was performed to document all the calcareous nannofossil biostratigraphic events present. Combined with data from previous investigations of the Lower Miocene from the tropical Atlantic, this research identifies and tests the viability of markers used in current zonation scheme, identifies alternative markers for age boundaries, and examine statistically the most probable order of event in the Lower Miocene using the Ranking and Scaling method (RASC).

The examination of Hole 959A was performed on a 112 samples. Seven additional sites that collectively span the …

Geotechnical Properties Of The Travis Peak (Hosston) Formation In East Texas: A Compressive And Tensile Strength Analysis Using Regression Analysis., Pawan Kakarla

Electronic Theses and Dissertations

The estimation of rock mass strength is a key parameter in geotechnical engineering which is used in the design of geotechnical structures like tunnels, dams and slopes. Geotechnical engineering is the branch of civil engineering which works on the principles of soil and rock mechanics to evaluate subsurface conditions, stability of slopes, foundations of structures and construction of earthworks. The main focus of this study was to calculate the strength of Lower Cretaceous Travis Peak Formation rocks of East Texas and to check the accuracy by comparing it with Regression analysis. The parameters which were used were the Uniaxial Compression …

1904, Water Resources In Salinas, United States Department Of Interior, Homer Hamlin

State and Federal Documents Relating to Monterey and San Luis Obispo Counties

The 1904 report pertains largely to that portion of the Salinas Valley lying within the boundaries of Monterey County. It describes the geography, topography, geology, climate factors and hydrology of the region discussing the methods of irrigation and irrigation systems, the extent of underground waters, and the possibility of extending irrigation by utilization of surface streams and impounding of flood waters.

1925, Soil Survey Of The Salinas Area, California, E. J. Carpenter And Stanley W. Cosby

State and Federal Documents Relating to Monterey and San Luis Obispo Counties

The 1925 reports describes the area surveyed, the climate, agriculture, soils, irrigation and drainage of the Salinas Valley. The report was prepared by E. J. Carpenter, United States Department of Agriculture and Stanley W. Cosby, University of California. The report covers the greater part of the area previously addressed in the Lapham and Heileman 1901 soil survey report.

Bulletin No. 42: The Mamacoke Conservation Area, Glenn Dreyer, Robert Askins, Scott Peterson

Bulletins

No abstract provided.

Early And Middle Atokan Lithostratigraphy And Reservoir Development, Northern Arkoma Basin, Northwestern Arkansas, Matthew Alan Blaylock

Graduate Theses and Dissertations

The Arkoma Basin is a peripheral foreland arc basin associated with the Ouachita orogenic belt. In Arkansas, the basin is bounded by the Ouachita belt to the south and the Ozark Dome to the north. Sedimentary rocks of early to middle Atokan age are present in the shallow subsurface at the northern margin of the Arkoma Basin in northwestern Arkansas. Sedimentary units of this time interval reflect basinal subsidence, and the transition of the Arkoma Basin from a passive margin shelf to a rapidly evolving foreland arc basin. Sediment sources from the north and east produced a thickened Lower and …

Pore Characterizations And Distributions Within Niagaran – Lower Salina Reef Complex Reservoirs In The Silurian Northern Niagaran Pinnacle Reef Trend, Michigan Basin, Agam Arief Suhaimi

Masters Theses

The Northern Niagaran Pinnacle Reef Trend (NNPRT) has generated significant oil and gas production in Michigan. The best reservoir rock in the Reef Trend reservoirs are from porous and permeable dolomite of the Guelph Dolomite. Low-to-non reservoir limestone occurs interstratified with reservoir dolomite in many locations. This study utilizes available cores data, thin section Petrographic Image Analysis (PIA), Mercury Injection Capillary Pressure (MICP) and a newly developed Niagaran Reef depositional model (Rine, 2015) to characterize the distribution of pore geometry within each dolomitized Niagaran Reef Complex (Brown Niagaran – Lower Salina Group) reservoir facies and lithofacies. This study shows that …

2015 Gsa International Distinguished Lecturer Tours Key Locations In Central And South America, Lisa L. Ely

Geological Sciences Faculty Scholarship

As the International Lecturer from North America, I visited 11 destinations in Ecuador, Peru, Chile, Costa Rica, Mexico, and Puerto Rico. The tour was designed to include locations where the topic of my presentation, “Following in the Footsteps of Darwin:
Combining Geological and Historical Evidence to Assess Earthquakes and Tsunami Hazards,” would have direct relevance.

Platinum Decoupling From Pge In Peridotitic Sulfides From The St. Elena Ophiolite In Costa Rica, Jessica A. Holm

Theses and Dissertations

The platinum group elements (Os, Ir, Ru, Rh, Pt, Pd) are important petrogenetic tracers of mantle processes and the Re-Os isotope system an important tool for tracing ancient depletion and refertilization processes in the mantle. A key characteristic of these elements is that they are siderophile and chalcophile, and their abundance in the Earth’s mantle is thought to be controlled by sulfides. Existing thermodynamic data suggests that at reducing conditions similar to those found at the early stages of serpentinization, PGE may exist as alloys in the mantle. While numerous studies report on the bulk peridotite PGE and sulfide PGE …

Behavior Of Rare Earth Elements And High-Field Strength Elements During Peridotite - Seawater Interaction, Carl Pasquale Frisby

Theses and Dissertations

Serpentinized abyssal peridotites are evidence for active communication between the Earth’s hydrosphere and the upper mantle, where exchange and retention of both major and trace elements occur. Rare earth elements (REE) and high-field strength elements (HFSE: Ti, Zr, Hf, Nb, Ta) are generally thought of as immobile during serpentinization. In partially serpentinized abyssal peridotites, clinopyroxenes typically retain radiogenic Nd and Hf isotopic signatures that have been used to infer the composition and high temperature processes in the upper mantle. However, bulk rock Nd isotopes in some serpentinized abyssal peridotites less radiogenic values that approach that of seawater, which has been …

Dendrochronological Analysis Of The Bixler House

Historic Structures

Dating historical structures using dendrochronology. The Historical Structures collection consists of reports that are the result of dendochronological analysis of timbers from structures in Pennsylvania and Ohio. Contributors: AlBashaireh, Amineh; Jimerson, Cole; Luna, Eduardo; Wiesenberg, Nicholas; Wiles, Greg

Geological Bodies, Savannah Fulmer

Honors Projects

‘Geological Bodies’ is a series of character designs that were developed to personify the traits of nine different rocks. The artwork is accompanied with written documentation of the research and execution.

The Mh-2 Core From Project Hotspot: Description, Geologic Interpretation, And Significance To Geothermal Exploration In The Western Snake River Plain, Idaho, Jerome A. Varriale

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Harnessing the earth’s natural heat generation as an energy resource has seen increased interest in recent history. While geothermal energy is a sustainable, low-carbon emitting, and viable source of energy in certain regions, large upfront risks, including costs of exploration and deep well drilling, have kept private sector investment at bay. Lowering the risks to capital investment that are inherent to subsurface exploration can help to assuage investors and bring this well-known energy-generating technology to the masses.

A blind potential geothermal system was encountered while drilling the MH2 science drill hole, on Mountain Home Air Force Base, Idaho. The MH-2 …

Dendrochronological Analysis Of The Barr House

Historic Structures

Dating historical structures using dendrochronology. The Historical Structures collection consists of reports that are the result of dendochronological analysis of timbers from structures in Pennsylvania and Ohio. Contributors: Wiesenberg, Nicholas

Petrographic Controls On Weathering Of The Haney Limestone, Steven M. Devine

Masters Theses & Specialist Projects

Although karst processes in south central Kentucky have been studied extensively, the Haney Limestone Member of the Golconda Formation has not been studied in detail in contrast to limestones stratigraphically below it that are thicker. In addition, the relationship between petrographic features of the Haney Limestone and the formation of caves and karst features has not been studied extensively compared to lithographic, petrographic, or structural variables

Petrographic data were collected using core and surface exposures across the study area of south central Kentucky from northern Logan and Warren counties up toward the Rough Creek Graben region, and stratigraphic columns were …

Determining The Age Of A Stabilized Dune Field, Carissa Raymond

UCARE: Research Products

The aim of this project was to assess the development and age of the Kearney Dunefield in central Nebraska through the collection and analysis of sand samples from the inactive dunes. These dunes are not part of the well-known Nebraska Sandhills, and so far have not been thoroughly studied. Similar assessments have been conducted on dune fields throughout the Great Plains, and this study seeks to place the Kearney Dunes into a regional context.

The OSL ages for the Kearney cores fall between approximately 590 and 690 years ago. These dates overlap with a period of activation for the Nebraska …

Geology Of The Platte River Valley Near Kearney, Nebraska, Jeremy S. Dillon, Paul R. Hanson, Ashley Larsen, Jacob Bruihler, Carissa Raymond

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Agenda: A Celebration Of The Work Of Charles Wilkinson: Served With Tasty Stories And Some Slices Of Roast, University Of Colorado Boulder. Getches-Wilkinson Center For Natural Resources, Energy, And The Environment

A Celebration of the Work of Charles Wilkinson (Martz Winter Symposium, March 10-11)

Conference held at the University of Colorado, Wolf Law Building, Wittemyer Courtroom, Thursday, March 10th and Friday, March 11th, 2016.

Conference moderators, panelists and speakers included University of Colorado Law School professors Phil Weiser, Sarah Krakoff, William Boyd, Kristen Carpenter, Britt Banks, Harold Bruff, Richard Collins, Carla Fredericks, Mark Squillace, and Charles Wilkinson

"We celebrate the work of Distinguished Professor Charles Wilkinson, a prolific and passionate writer, teacher, and advocate for the people and places of the West. Charles's influence extends beyond place, yet his work has always originated in a deep love of and commitment to particular places. We …

Dendrochronological Analysis Of The Biggio Barn

Historic Structures

Dating historical structures using dendrochronology. The Historical Structures collection consists of reports that are the result of dendochronological analysis of timbers from structures in Pennsylvania and Ohio. Contributors: 2016 Climate Change Class

Muang Rae Geothermal System: Drilling And Borehole Geophysics, 1000-M Core Hole Into Granitic Rock, Amphoe Pai, Mae Hong Son Province, Northern Thailand, Spencer H. Wood, Kriangsak Pirarai, Aranya Fuangswasdi, Wiboon Kaentao, Albert Waibel, Fongsaward S. Singharajwarapan

Geosciences Faculty Publications and Presentations

In 2015, a 1-km core hole was drilled into granitic rock at the Muang Rae geothermal area. Previous drilling in 1993 to 200 m was unsuccessful in obtaining flows, but one of the “dry” wells began flowing in August, 2013 at 9.75 L/s of 96.9°C water from a fracture zone 80 m deep. In the sandy bed of the Pai River, 150 m south of that well is a 600-m long line of hot seeps, oriented NE, with highest temperature measured at 94.5°C. Geology is foliated Triassic (?) granitic rock cut by a NE-SW-trending normal fault zone (dip 65° NW) …

Eons, Eras And Periods, John J. Renton, Thomas Repine

Readings and Notes

A discussion of eons, era, periods and epochs of the geologic time scale.

The Silurian Period, John J. Renton, Thomas Repine

Readings and Notes

The Silurian Period is the shortest of all the periods of the Paleozoic Era, lasting only 30 million years from 438 million years ago until 408 million years ago. As the Silurian Period opens, the eastern margin ofLaurentia was dominated by the Taconic Highlands that had been created during the Taconic Orogeny at the close of the Ordovician. The rest of the craton was essentially flat-lying and covered by a shallow sea. Except for the northeastern margin which was involved in a major orogeny following the Taconic Orogeny, Laurentia was tectonically quiet throughout the Silurian. About 10 million years before …

The Permian Period, John J. Renton, Thomas Repine

Readings and Notes

The Permian Period was a time of great crisis in Earth's history. The Permian saw the final closure of the Iapetus Ocean that had formed following the breakup of the super­ continent of Rodinia in the late pre-Cambrian; the closure resulting in the formation of another super-continent, Pangea. It was during the Permian that two of Earth's major mountain chains, the Appalachians and the Urals, were created. The period was one of climatic extremes. By the end of the Permian, Earth had not only experienced its most widespread glaciation but also the formation of deserts the likes of which had …

The Cretaceous Period, John J. Renton, Thomas Repine

Readings and Notes

A global rise in sea level occurred during the Cretaceous; as a result, sea level stood as high during the Late Cretaceous than at any other time in the Phanerozoic history of Earth. Although Pangea had begun to breakup during the Early Mesozoic Era, the smaller continents remained tightly clustered at the beginning of Cretaceous time. The continued breakup of Pangea and the dispersion of the newly created continents were among the most important events that occurred during the global geography of the Cretaceous. Especially important was the breakup of Gondwana. Gondwana was still intact at the beginning of the …

The Mississippian Period, John J. Renton, Thomas Repine

Readings and Notes

The first rocks to attract the attention of the early European were those containing the coals, primarily because of their importance in supplying the source of energy for the Industrial Revolution which began in the mid-1700s. As early as 1808, the coal-bearing rocks were referred to on the Continent as the "bituminous terraine' while the British geologists called them the "Coal Measures" The name Carboniferous was introduced in 1822 by Conybeare and Philips when they were attempting to make sense of the rocks of England and Wales. They proposed that all of the rocks from the Coal Measures down to …

The Cambrian Period, John J. Renton, Thomas Repine

Readings and Notes

The Cambrian Period extends from 570 million years ago to 505 million years ago. Notwithstanding the discovery of the Ediacara fauna, the Cambrian Period of the Paleozoic Era has historically been taken as the beginning of historical time based on the first appearance of abundant fossil remains. It is interesting to note, however, that where first described, the lower Cambrian was not very fossiliferous.

The Geology Of West Virginia, John J. Renton, Thomas Repine

Readings and Notes

This is not meant to be a geology textbook but rather a discussion that will help you understand what you see around you every day or if you take a trip around the State. For example, you're on your way to work or to class or you are going shopping. Most likely, you're driving down a wide valley surrounded by hills. What do the hills look like? Why does the topography change as you go from one part of the State to another? In my opinion, of all the states that make up Appalachia, West Virginia is the most interesting …

The Cenozoic Era, John J. Renton, Thomas Repine

Readings and Notes

It has been said that the modem world unfolded during the Cenozoic Era. It is true that every feature of the modem landscape was formed during the Cenozoic Era. The Alps and the Himalaya have literally risen from the ocean floor. The Rocky mountains have been formed, worn away and re-uplifted to their present heights. The Appalachian Mountains that had formed at the close of the Paleozoic and worn away by the end of the Triassic, were uplifted and sculpted into their present form during the Cenozoic. All the other mountains of the world were also elevated and sculpted to …

The Devonian Period, John J. Renton, Thomas Repine

Readings and Notes

Until the 19th century, the rocks exposed throughout the provinces of Devonshire and Cornwall in southwestern England had long been considered to be Carboniferous in age because of their content of fossil plants. Closer investigation by Murchison and Sedgwick in 1836, however, showed that only the uppermost portion of these rocks contained fossil plants. Because the lower portion of the rock sequence was devoid of plant fossils, was highly deformed, and resembled the rocks of northwest Wales which they had recently studied, Murchison and Sedgwick assigned the rocks to the Cambrian System. However, local fossil collectors had submitted fossil corals …

Geologic History Of West Virginia, John J. Renton, Thomas Repine

Readings and Notes

The exposed rocks and those that underlie the surface of West Virginia record approximately 300M years of Earth history. This may sound like a very long period of time, but in reality, it only represents about 7% of the total age of Eai1h. Before we undertake a discussion of the geologic history of West Virginia, there are some basic topics we should review in order to fully appreciate what will follow. To that end, the following topics will be discussed: 1) The Origin of Earth, 2) The Response of Rocks to Stress, 3) Some Basic Characteristics of Sedimentary Rocks, 4) …