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Major Elements Geochemistry Of The Breiner Baiut Ore Deposit (Gutai Mountains, Eastern Carpathians), Dan Costin

Studia UBB Geologia

The Breiner Băiuţ epithermal vein – type deposit is basically a base metal ore body with important amounts of gold and silver. The frequency distribution pattern of the major elements (Au, Ag, Pb, Zn, Cu, S) is complex in many cases, but at some mining levels it is lognormal. The correlation coefficient "r" has been calculated for six pairs of major elements. The values are positive and indicate strong correlations between these elements. The average grades values for each major element at all levels have been used to highlight the vertical variation of chemistry of the mineralization. The ore body …

Sedimentary Succesion Of The Lower Cretaceous Deposits From The North-Western Part Of Pădurea Craiului (Apuseni Mountains, Romania), Daniel F. Lazar, Ioan I. Bucur, Ioan Cociuba, Emanoil Sasaran

Studia UBB Geologia

Within the general succession of the Lower Cretaceous deposits from the Vârciorog-Dobreşti area (Pădurea Craiului Mountains), carbonate and terrigenous deposits were identified. The limestones were assigned to two distinctive lithostratigraphic units: the Valea Măgurii and Vârciorog formations. Based on the orbitolinids Palorbitolina lenticularis and Mesorbitolina texana their ages are assigned to the early Aptian, and respectively late Aptian–Albian. The terrigenous facies mainly include fine grained deposits (clays, siltites, marls) and, to a lesser extent, coarser ones (glauconitic sandstones and conglomerates), and they are attributed to the Ecleja and Vârciorog formations. The marls of the Ecleja Formation have been observed in …

Vent-Fault Spatial Study Of Selected Volcanic Fields Of Southwestern North America And Mexico, Michelle Leonard

USF Tampa Graduate Theses and Dissertations

Of fundamental concern in volcanic hazard and risk assessment studies of volcanic systems is what role crustal structures might play in the ascent of magma through the crust. What are the processes that govern the spatial distribution and timing of eruptions, especially in populated areas or near sensitive facilities? Many studies have drawn the conclusion that faults play a critical role as easily–exploitable crustal weaknesses along which magma can ascend. Great care must be used when assuming a causative relationship between patterns of vents and faults especially when such relationships may be incorporated into hazard assessment models or other forecasting …

Active Tectonics And Earthquake Destructions In Caves Of Northern And Central Switzerland, Arnfried Becker, Philipp Häuselmann, Jost Eikenberg, Eric Gilli

International Journal of Speleology

The present publication focuses on the study of caves in northern and central Switzerland in order to detect and date historical earthquakes and active tectonic displacements by investigations of broken and resealed or displaced speleothems datable by U/Th and ¹⁴C. While it can be shown that these methods are potentially suitable, the ages obtained are often beyond the range of historically recorded earthquakes, and it cannot be proved that the observed and dated events are related to a seismic event. Particularly this is true for the caves in central Switzerland, where most ages in the Melchsee-Frutt region were beyond …

New Data On The Upper Jurassic–Lower Cretaceous Limestones From Bihor Mountains: Case Study Of Gârda Seacă-Hodobana Region, Romania, Valentin Turi, Emanoil Sasaran, Ioan I. Bucur

Studia UBB Geologia

This study refers to some problems regarding the lithological succession, facies and carbonate microfacies, and to biostratigraphic markers of the Upper Jurassic-Lower Cretaceous carbonates from Bihor Mountains. Three types of facies (external marginal facies, subtidal and peritidal facies) were separated for the Upper Jurassic, and two (coastal-peritidal and open shelf facies) for the Lower Cretaceous carbonates. The micropaleontological assemblages identified contain species that allow the separation of the two formations of different age: Labyrinthina mirabilis, Kurnubia palastiniensis, Neokilianina rahonensis, Clypeina sulcata (Kimmeridgian-Lower Tithonian) and Parakoskinolina? jourdanensis, Montseciella arabica, Palorbitolina lenticularis, Falsolikanella danilovae (Barremian – Lower Aptian). Field observations and data …

Martian Modules: Design Of A Programmable Martian Settlement, Craig A. Trover

USF Tampa Graduate Theses and Dissertations

The evolution of human beings is marked

by adaptation. The ability to adapt to and

manipulate our environment is one definer of

intelligence, and ours is unique among life

on Earth. Since moving off of the African

Continent, humans have migrated to inhabit

every part of the Earth. Human existence

and perpetuity in the universe depends upon

the success of this adaptation, and inevitably,

migrating off of this planet. The technological

advances being developed today will change

our way of life, and enable people to travel to

and live permanently on the Moon and Mars.

This study involves the architectural …

Strain Rate Patterns From Dense Gps Networks, Matthias Hackl, Rocco Malservisi, Shimon Wdowinski

School of Geosciences Faculty and Staff Publications

The knowledge of the crustal strain rate tensor provides a description of geodynamic processes such as fault strain accumulation, which is an important parameter for seismic hazard assessment, as well as anthropogenic deformation. In the past two decades, the number of observations and the accuracy of satellite based geodetic measurements like GPS greatly increased, providing measured values of displacements and velocities of points. Here we present a method to obtain the full continuous strain rate tensor from dense GPS networks. The tensorial analysis provides different aspects of deformation, such as the maximum shear strain rate, including its direction, and the …

Mineral Chemistry Of Some Agates From Gurasada (Mures Valley, Romania), Ovidiu G. Iancu, Dorel P. Toda, Gabriela Iancu

Studia UBB Geologia

The paper presents the study of some agates from the Gurasada area (Mures Valley, West Romania) and their igneous host rocks. Agates occur in the vesicles of strongly altered pyroclastic rocks (“banatites”), such as basaltic andesites, trachyandesites, trachytes and dacites or in the alluvial sediments along the Gurasada valley. The age of host-rocks is Late Cretaceous-Early Paleogene. Agates consist mainly of various types of α-quartz such as: chalcedony, quartzine and microquartz, associated with moganite. The genesis of agates is related with the hydrothermal solutions which altered the host-rocks.

Archaeometric Comparison Between The Neolithic Pottery Of Different Cultures At The Archaeological Site Of Alba Iulia (Transylvania, Romania), Bruno Fabbri, Mihai Gligor, Sabrina Gualtieri, Simona Varvara

Studia UBB Geologia

A large quantity of pottery has been discovered at the Lumea Nouă Neolithic and Eneolithic settlement in Alba Iulia City (Romania). It belongs to different cultures, and in this paper a comparison among three of them is made: Vinča, Lumea Nouă and Foeni. An analogous number of samples has been selected for each of the three cultures, together with some clay samples collected in the Alba Iulia settlement area. The samples have been analysed by means of XRF, XRPD, and in thin section. Significant differences among the three cultures are only related to the alkalis contents. The Lumea Nouă pottery …

Fore-Arc Motion And Cocos Ridge Collision In Central America, Peter Lafemina, Timothy Dixon, Rob Govers, Edmundo Norabuena, Henry Turner, Armando Saballos, Glen Mattioli, Marino Protti, Wilfried Strauch

School of Geosciences Faculty and Staff Publications

We present the first regional surface velocity field for Central America, showing crustal response to interaction of the Cocos and Caribbean plates. Elastic half-space models for interseismic strain accumulation on the dipping subduction plate boundary fit the GPS data well and show strain accumulation offshore and beneath the Nicoya and Osa peninsulas in Costa Rica but not in Nicaragua. Since large subduction zone earthquakes occur in Nicaragua, we suggest that interseismic locking in Nicaragua and some other parts of Central America occurs but is mainly shallow, depth, too far offshore to be detected by our on-land GPS measurements. Our data …

Passages, Volume 10, No. 2, Summer 2009, Joe Mitchell

Texas Cave Management Association

Contents: TCMA: Cavers Protecting Caves -- View from the Palit -- Deep & Punkin Caves: Two Texas Classics -- TCMA -- Ezell's Cave: Home of the Blind Monster -- Godwin Ranch: Habitat for Endangered Species -- Rolling Oaks: A Small Preserve Protecting Small Creatures -- Robber Baron: History, Mystery, and Restoration -- Deep and Punkin Cave Survey Update -- LIDAR Mapping the Devil's Sinkhole -- Linda Palit: Highlights from a Lifetime of Caving -- LIDAR -- A Geology Field Trip to Deep & Punkin Caves -- RBC -- Whirlpool Preserve -- Lost Oasis Preserve -- TCMA Supports the 15th ICS …

The Virtual Landscape Of Geological Information Topics, Methods, And Rhetoric In Modern Geology, Sarah Elizabeth Fratesi

USF Tampa Graduate Theses and Dissertations

Geology is undergoing changes that could influence its knowledge claims, reportedly becoming more laboratory-based, technology-driven, quantitative, and physics- and chemistry-rich over time. This dissertation uses techniques from information science and linguistics to examine the geologic literature of 1945-2005. It consists of two studies: an examination of the geological literature as an expanding network of related subdisciplines, and an investigation of the linguistic and graphical argumentation strategies within geological journal articles.

The first investigation is a large-scale study of topics within articles from 67 geologic journals. Clustering of subdiscipline journals based on titles and keywords reveals six major areas of geology: …

In Memoriam

Studia UBB Geologia

No abstract provided.

Studies Of The Mechanics And Structure Of Shallow Magmatic Plumbing Systems, Mikel Díez

USF Tampa Graduate Theses and Dissertations

Volcanic activity, and the resultant deposits and structures at the Earth's surface, are the outcome of the inner workings of underground magmatic plumbing systems. These systems, essentially, consist of magma reservoirs which supply magma to the surface through volcanic conduits feeding volcanic eruptions. The mechanics and structure of plumbing systems remain largely unknown due to the obvious challenges involved in inferring volcanic processes occurring underground from observations at the surface. Nevertheless, volcanologists are beginning to gain a deeper understanding of the workings and architecture of magmatic plumbing systems from geophysical observations on active volcanoes, as well as from geological studies …

Cooperative Localization In Wireless Networked Systems, Mauricio Castillo-Effen

USF Tampa Graduate Theses and Dissertations

A novel solution for the localization of wireless networked systems is presented. The solution is based on cooperative estimation, inter-node ranging and strap-down inertial navigation. This approach overrides limitations that are commonly found in currently available localization/positioning solutions. Some solutions, such as GPS, make use of previously deployed infrastructure. In other methods, computations are performed in a central fusion center. In the robotics field, current localization techniques rely on a simultaneous localization and mapping, (SLAM), process, which is slow and requires sensors such as laser range finders or cameras.

One of the main attributes of this research is the holistic …

Geologic Setting Of Mosul Dam And Its Engineering Implications, Julie R. Kelley, Lillian D. Wakeley, Seth W. Broadfoot

KIP Articles

The geologic setting of Mosul Dam is critically important for its engineering implications and its usefulness and contribution to engineer- ing and operational decisions about the dam. The dam was constructed on alternating and highly variable units of gypsum, anhydrite, marl, and lime- stone, each of which is soluble in water under the environmental and hydrogeologic conditions of the dam. From a geologic standpoint, the foundation is very poor, and the site geology is the principal cause of con- tinuing intense concern about the safety of the structure. Mineralogic variability within rock units resulted from original depositional processes that created …

Geologic Conceptual Model Of Mosul Dam, Lillian D. Wakeley, Julie R. Kelley, Monte L. Pearson

KIP Articles

Mosul Dam, Iraq, was built in the 1980s on a foundation of soluble geologic materials. Because of the solubility of its foundation and abutments, maintenance grouting began immediately after construction and continues to the present. The U.S. Army is concerned about the stability of the dam, and about the potential military and political impacts that would accompany dam failure. At the request of the U.S. Army Corps of Engineers’ Gulf Region Division, the U.S. Army Engineer Research and Development Center (ERDC) developed a three-dimensional (3-D) geologic conceptual model of the dam, as a tool to assist with improving dam safety …

Animal Husbandry At Tell El Hesi (Israel): Results From Zooarchaeological And Isotopic Analysis, Shannon Marie Peck-Janssen

USF Tampa Graduate Theses and Dissertations

Located in today’s southern Israel, Tell el Hesi provides archaeologists with important clues to political and social changes in the ancient Near East. Zooarchaeological and stable isotopic analyses were conducted to evaluate shifts in animal husbandry practices during changing socioeconomic and sociopolitical conditions in the southern Levant.

During the Early Bronze Age, Tell el Hesi thrived as an agricultural grain producing center for the southern Levant. The acropolis served as both a storage and redistribution center for the inhabitants of Tell el Hesi. Coinciding with the collapse of the southern Levant, Tell el Hesi was abandoned throughout the Middle Bronze …

An Evaluation Of The Along Track Reef Imaging System (Atris) For Efficient Reef Monitoring And Rapid Groundtruthing Of Eaarl Lidar, Nicole O. Caesar

USF Tampa Graduate Theses and Dissertations

The Along-Track Reef-Imaging System (ATRIS) is a vessel-mounted, digital camera, depth sounder and Global Positioning System (GPS) package that facilitates the rapid capture of underwater images in shallow-water benthic environments. This technology has the potential to collect ecologically significant data, particularly in benthic habitats less than 10 m in depth, with better location referencing and in less time than is required for surveys carried out by Scuba divers. In October 2004, ATRIS was tested coincidently with SCUBA-assisted video along transects on five patch reefs in Biscayne National Park. Images from both data sets were subsampled, viewed, and benthic cover under …

National Cave And Karst Research Institute 2004-2005 Biennial Report Nckri Biennial Report, 2004-2005, National Cave And Karst Research Institute

KIP Articles

Contents: Overview by the Institute Director -- Primary Partners ; National Park Service ; City of Carlsbad ; New Mexico Tech ; NCKRI, Inc. -- Institute Building Activities -- Moving towards NCKRI, Inc. ; Preliminary meetings and activities ; NCKRI, Inc. ; Planning for the future -- Facility Partners ; New Mexico State Univ./Carlsbad Environmental Monitoring Research Center ; Carlsbad Department of Development/AMITC -- NCKRI Building Project -- Visiting Scholar Program -- Volunteers Program -- NCKRI projects ; NCKRI Lecture Series ; Karst Information Portal ; NCKRI library ; NCKRI program review -- Sponsored projects ; Mississippi State University Digital …

Storm-Influenced Sediment Transport Gradients On A Nourished Beach, Nicole A. Elko

USF Tampa Graduate Theses and Dissertations

Beach nourishment provides an excellent opportunity for the study of intensified sediment transport gradients and associated morphological changes in a natural setting. The objectives of this study are to quantify and predict longshore and cross-shore transport gradients induced by 1) beach nourishment, 2) different storm wave conditions, and 3) the annual wave climate and long-term sediment supply. The details of sediment transport rates and gradients induced by gradual processes and high-energy events are analyzed on a macro-scale. Well-planned monitoring of the 2004 Upham Beach nourishment project in west-central Florida collected high-spatial and -temporal resolution field data. Three hurricanes passed by …

Community Structure, Faunal Distribution, And Environmental Forcing Of The Extinction Of Marine Molluscs In The Pliocene San Joaquin Basin, Central California, John Richard Bowersox

USF Tampa Graduate Theses and Dissertations

This study focuses on reconstructing the dynamics within the Pliocene San Joaquin Basin (SJB) molluscan fauna. This was accomplished by 'binning' the data within a constrained chronostratigraphic framework into: 1) 484 individual stratigraphically-ordered locality collections; 2.) 116 stratigraphically-sequential compiled ten-meter sample intervals; 3.) 15 intervals compiled by 4th-order eustatic cycles; 4.) three formation-level compiled samples; and 5.) the Etchegoin group fauna (informal San Joaquin Basin nomenclature) overall. These datasets were analyzed by inferential, multivariate, and descriptive statistics to examine local and regional environmental controls on faunal composition, community associations and distributions; cross-scale faunal structure; and large-scale environmental controls on immigration, …

Spectral Analysis Of Ground Penetrating Radar Response To Thin Sedimentary Layers, Swagata Guha, Sarah E. Kruse, E. E. Wright, U. E. Kruse

Geology Faculty Publications

Ground penetrating radar (GPR) systems utilized in studies of sedimentary deposits generate wavelengths (tens of centimeters) that are commonly much longer than the thickness of bedding (often millimeters to centimeters) within the target strata. Where this is the case, radar profiles represent interference patterns. Simple models of radar response to sequences of thin beds such as those found in coastal deposits show potentially detectable spectral shifts toward higher frequencies in radar returns. Spectral analysis of radar data over barrier beach deposits at Waites Island, South Carolina, shows that returns from packages with heavy mineral laminations are shifted toward higher frequencies …

Cave Research Foundation Newsletter, Volume 33, No. 4, November 2005, William Payne

Cave Research Foundation Newsletter

Contents: Notes from the Content Editor -- Annual CRF Meeting, November 10-13 in Cape Girardeau -- Structural Geology Research, July 20th through 27th, 2005 -- Regional Expedition Reports -- Book Review -- 2005 Expedition Calendar -- Cave Books

Geodetic Gps Measurements In South Iceland: Strain Accumulation And Partitioning In A Propagating Ridge System, P. C. Lafemina, Timothy H. Dixon, R. Malservisi, T. Arnadottir, E. Sturkell, F. Sigmundsson, P. Einarsson

School of Geosciences Faculty and Staff Publications

GPS observations in south Iceland between 1994 and 2003 are compared with two-dimensional elastic half-space and viscoelastic coupling models for two parallel rift zones, representing the Western and Eastern volcanic zones (WVZ, EVZ). GPS data from the Hreppar block, between the WVZ and EVZ, fit a rigid block model within uncertainties. Spreading rates across the WVZ increase from 2.6 ± 0.9 mm/yr in the northeast to 7.0 ± 0.4 mm/yr in the southwest. Conversely, spreading rates in the EVZ decrease from 19.0 ± 2.0 mm/yr in the northeast to 11.0 ± 0.8 mm/yr in the southwest, the direction of ridge …

Cave Talk, April 2005, Susan Berdeaux

Cave Talk

Contents: Six NCA Caves Designated By National Geographic -- 2005 National Cave And Karst Management Symposium -- Paul Rubin Joins Howe Caverns Staff -- Cave License Plates? -- Year of the Cave -- Convention 2005 -- Is It Info Or Is It Spam? -- Penny for Your Thoughts? -- NCA Board of Directors Meeting -- Insurance Update -- NCA Insurance Committee -- Crisis Guide -- Final Thoughts Mid-Winter Meeting February 26, 2005 -- Join the NCA Insurance Program! Steps to Becoming a Member of the NCA Insurance Program

Dye Tracing Recharge Features Under High-Flow Conditions, Onion Creek, Barton Springs Segment Of The Edwards Aquifer, Hays County, Texas, Brian B. Hunt

KIP Data Sets and Technical Reports

The Barton Springs/Edwards Aquifer Conservation District, in cooperation with the City of Austin, injected non-toxic organic dyes into two caves within the Barton Springs segment of the Edwards aquifer to trace groundwater flow paths and determine groundwater-flow velocities. Antioch and Cripple Crawfish Caves are located about 14.0 and 17.5 miles south, respectively, of Barton Springs, the primary discharge point from the aquifer. Twenty-five pounds of sodium fluorescein were injected into Antioch Cave on August 2, 2002 and arrived at Barton Springs between 7 to 8 days after the injection. Thirty-five pounds of eosine were injected into Cripple Crawfish Cave on …

National Cave And Karst Research Institute 2004-2005 Annual Report, National Cave And Karst Research Institute

KIP Articles

No abstract provided.

Ground Penetrating Radar Response To Thin Layers: Examples From Waites Island, South Carolina, Swagata Guha

USF Tampa Graduate Theses and Dissertations

Thin layers (layers that are not resolvable in terms of GPR wavelengths) are very common in sedimentary deposits. To better understand ground penetrating radar (GPR) wave behavior in sequences of thin layers with contrasting electromagnetic parameters, 1D FDTD simulations are run for simple layer distributions. Laminated (mm-scale) sequences can produce reflected energy with 10-20% of the amplitude of reflections from equivalent isolated contacts. Amplitude spectra from laminae packages are shifted toward higher frequencies. Such spectral shifts in radar profiles may potentially be used as indicators of fine-scale laminations. A comparative study of GPR records and models generated from core data …

Geodetic And Sconstraints On Some Seismogenic Zone Processes In Costa Rica, Edmundo Norabuena, Timothy H. Dixon, Susan Schwartz, Heather Deshon, Andrew Newman, Marino Protti, Victor Gonzalez, Leroy Dorman, Ernst R. Flueh, Paul Lundgren, Fred Pollitz, Dan Sampson

School of Geosciences Faculty and Staff Publications

New seismic and geodetic data from Costa Rica provide insight into seismogenic zone processes in Central America, where the Cocos and Caribbean plates converge. Seismic data are from combined land and ocean bottom deployments in the Nicoya peninsula in northern Costa Rica and near the Osa peninsula in southern Costa Rica. In Nicoya, inversion of GPS data suggests two locked patches centered at 14 ± 2 and 39 ± 6 km depth. Interplate microseismicity is concentrated in the more freely slipping intermediate zone, suggesting that small interseismic earthquakes may not accurately outline the updip limit of the seismogenic zone, the …