Earth Sciences Commons^™

Petrological Comparison Of The Upper Cretaceous - Lower Tertiary Basins Of The "Ankara Virgation", Emel Bayhan, Sungu L.Gökçen

Bulletin of the Mineral Research and Exploration

No abstract provided.

Sulfur Isotope Study Of Kurşunlu (Ortakent-Koyulhi̇sar-Si̇vas) Vein Type Pb-Zn-Cu Deposits, Ahmet Gökçe

Bulletin of the Mineral Research and Exploration

No abstract provided.

Geochemical Proximity Indicators Of The Murgul Volcanogenic Copper Deposit, East Pontic Metallotect Ne Turkey, Nevzat Özgür, Carlos M. Palacios

Bulletin of the Mineral Research and Exploration

No abstract provided.

Metamorphism And Fission-Track Age Determination Of Apatite Crystals From Demi̇rci̇-Borlu Region, Gördes Submassif Of The Menderes Massifwestern Turkey, Osman Candan, Cahit Helvaci, G. Böhler, G. Walder, T.D. Mark

Bulletin of the Mineral Research and Exploration

No abstract provided.

Quantitative Total Iron Analysis Using Xrd - Fluorescence Radiation Intensity, Doğan Aydal

Bulletin of the Mineral Research and Exploration

No abstract provided.

Palynology Of The Borate Bearing Neogene Sediments In Bi̇gadi̇ç, Kestelek, Emet And Kirka Regions, Erol Akyol, Funda Akgün

Bulletin of the Mineral Research and Exploration

No abstract provided.

Findings Related To The History Of Mining In Turkey, Ergün Kaptan

Bulletin of the Mineral Research and Exploration

No abstract provided.

Comment On “Timing Of Mantle Upwelling: Evidence For A Passive Origin For The Red Sea Rift” By A. V. Mcguire And R. G. Bohannon, Timothy H. Dixon

School of Geosciences Faculty and Staff Publications

No abstract provided.

The Effect Of Tracking Network Configuration On Gps Baseline Estimates For The Casa Uno Experiment, S. Kornreich Wolf, Timothy H. Dixon, J. T. Freymuller

School of Geosciences Faculty and Staff Publications

Geodetic monitoring of subduction of the Nazca and Cocos plates is a goal of the CASA (Central and South America) Global Positioning System (GPS) experiments, and requires measurement of intersite distances (baselines) in excess of 500 km. The major error source in these measurements is the uncertainty in the position of the GPS satellites at the time of observation. A key aspect of the first CASA experiment, CASA Uno, was the initiation of a global network of tracking stations to minimize these errors. We studied the effect of using various subsets of this global tracking network on long (>100 …

A “Drastic” Evaluation Of The Ground-Water Pollution Potential Of Karst Terrain: Lost River Ground-Water Basin, Warren County, Kentucky, David Baize

Masters Theses & Specialist Projects

Karst terrains, such as the Lost River Karst Ground-Water Basin, are extremely vulnerable to ground-water contamination. Seven physical factors: depth to water, recharge, aquifer media, soil media, topography, impact of the vadose zone, and hydraulic conductivity, are evaluated using the DRASTIC system to determine the ground-water pollution potential of the study area. A numerical value is calculated for each of the seven factors, and a map layer for each factor is produced. These layers are then “added” together to produce a DRASTIC ground-water pollution potential map. The effectiveness of each factor in evaluating the pollution potential of karst terrain is …

Stromatolites Of The Lower Cambrian Deep Spring Formation; Mount Dunfee, Esmeralda County, Nevada, Lynn Oliver

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Middle Member of the Lower Cambrian Deep Spring Formation at Mount Dunfee, Nevada contains a diverse assemblage of stromatolites that formed on a tide- and storm-dominated, siliciclastic-influenced, carbonate shelf. The stromatolites formed in a shallow subtidal environment within and near active oolite shoals under strongly focused currents. The stromatolites occur in four different lithofacies: (1) bioherms of digitate stromatolites, (2) bioherms and biostromes of inclined stromatolites, (3) isolated forms of massive and hemispheroidal stromatolites, and (4) a biostrome of cryptomicrobial boundstones. The first three lithofacies are interpreted as microbial reefs. They had topographic relief, formed in active agitated waters, …

A Comparison Of Metals In Several Ahermatypic Corals And Surficial Sediments: Mobile Pinnacles And Hoffa Reef, Northcentral Gulf Of Mexico, Kathryn M. Conko

OES Theses and Dissertations

Metal concentrations in marine sediment and carbonate secreting invertebrates are representative of surrounding environmental chemistry. Aluminum, Ba Ca, Cd, Cr, Cu, Fe, Mg, Mn, Ni, Pb, Sr, and Zn were measured in carbonate and terrigenous phases of the $<$63 um fraction of sediment samples from two locations in the northcentral Gulf of Mexico. Enrichment factors indicate that Al, Ba, Cu, Cr, Mg, Mn, and Ni are all slightly depleted in these sediments relative to crustal abundances. Discriminant function analyses shows that the concentrations of five elements differ between locations.

Ahermatypic coral (106 specimens) from five genera collected from the study sites were analyzed for Cd, Cu, Cr, Pb, Zn, Mn, Sr, Ba, Fe, Ca and Mg. Eight elements vary between some genera, Al and Ba also vary in concentration in corals between either location. All elements except Sr are significantly depleted in the coral with respect to Ca in the …

Serendibite From The Northwest Adirondack Lowlands, In Russell, New York, Usa, Edward S. Grew, Martin G. Yates, William Delorraine

Earth Science Faculty Scholarship

No abstract provided.

Tectonic Relations Between Izmir-Ankara Zone And Karaburun Belt, Burhan Erdoğan

Bulletin of the Mineral Research and Exploration

No abstract provided.

Impli̇cati̇ons On Geology, Genesis And Ori̇gi̇n Of Çayirli Manganese Deposit, Ankara, Central Anatolia, Vedat Oygür

Bulletin of the Mineral Research and Exploration

No abstract provided.

Formati̇on Of Türkmentokat-Karatepe (Eski̇şehi̇r) Magnesite Ore Beds, Kadir Sarii̇z

Bulletin of the Mineral Research and Exploration

No abstract provided.

Mi̇neral Phases In The Edi̇ge Ophiolite Body, Ayla Tankut, Naci M. Sayin

Bulletin of the Mineral Research and Exploration

No abstract provided.

First Gps Baseline Results From The North Andes, James N. Kellogg, Jeffrey T. Freymueller, Timothy H. Dixon, Ruth E. Neilan, Clemente Ropain U., Sergio Camargo M., Benjamin Fernandez Ch., James L. Stowell, Anibal Salazar, Jaime Mora V., Luis Espin, Vernon Perdue, Leonard Leos

Faculty Publications

The CASA UNO GPS (Global Positioning System) experiment (January-February 1988) has provided the first epoch baseline measurements for the study of plate motions and crustal deformation in and around the North Andes. Two dimensional horizontal baseline repeatabilities are as good as 5 parts in 10⁸ for short baselines (100-1000km), and better than3 parts in 10⁸ for long baselines (>1000km). Vertical repeatabilities are typically 4 -6 cm, with a weak dependence on baseline length. The expected rate of plate convergence across the Colombia Trench is 6-8 cm/yr, which should be detectable by the repeat experiment planned for 1991. …

The Extended Tracking Network And Indications Of Baseline Precision And Accuracy In The North Andes, Jeffrey T. Freymueller, James N. Kellogg

Faculty Publications

The CASA UNO Global Positioning System (GPS) experiment (January-February 1988) included an extended tracking network which covered three continents in addition to the network of scientific interest in Central and South America. The repeatability of long baselines (400-1000 km) in South America is improved by up to a factor of two in the horizontal vector baseline components by using tracking stations in the Pacific and Europe to supplement stations in North America. In every case but one, the differences between the mean solutions obtained using different tracking networks was equal to or smaller than day-to-day rms repeatabilities for the same …

The Ostracoda Bio Stratigraphy And Environmental Interpretation Of The Montian-Cuisian Sequence In The South Of Polatli (Sw Ankara), Mehmet Duru, Nuran Gökçen

Bulletin of the Mineral Research and Exploration

No abstract provided.

A New Carbonifereous And Permian Finding In The Karakaya Nappe, Erdin Bozkurt

Bulletin of the Mineral Research and Exploration

No abstract provided.

The Stratigraphy, Sedimentology And Origin Of The Copper (Silver-Uranium) Deposits Found In An Area Between Deli̇ce And Yerköy (Middle Anatolia), Halil Aral

Bulletin of the Mineral Research and Exploration

No abstract provided.

Geology Of The Balikesi̇r-Bandirma Region (Northwest Anatolia), Petrology Of The Tertiary Volcanism And Its Regional Distribution, Tuncay Ercan, Erdem Ergül, Ferit Akçören, Ahmet Çeti̇n, Salâhi Grani̇t, Jerf Asutay

Bulletin of the Mineral Research and Exploration

No abstract provided.

Stratigraphy And Micropaleontology Of The Mut-Ermenek Tertiary Sequence, Ümit Tanar, Nuran Gökçen

Bulletin of the Mineral Research and Exploration

No abstract provided.

Geochemical Implications For Tectonic Setting Of The Ophiolitic Rocks From The Ophiolite Melange Belt Of The Ankara Melange, Ayla Tankut

Bulletin of the Mineral Research and Exploration

No abstract provided.

Features And Origin Of Bi̇lluri̇k Dere (Elaziğ) Mineralizations, Ahmet Şaşmaz, Ahmet Sağiroğlu

Bulletin of the Mineral Research and Exploration

No abstract provided.

Progressive Brütle-Ductile Deformati̇on Dm The Demi̇rköy Plüton Of The Strandjha Massive Of Thrace – Turkey, M-Atilla Çağlayan, Metin Şengün, Ayhan Yurtsever

Bulletin of the Mineral Research and Exploration

No abstract provided.

Nterpretation Of New Geochemical, Radiometric And Isotopic Data On Eastern And Southeastern Anatolia, Tuncay Ercan, Tatsuya Fuji̇tani̇, Jun-Ichi Matsuda, Kenji Notsu, Selçuk Tokel, Tadahide Ui̇

Bulletin of the Mineral Research and Exploration

No abstract provided.

Central And South America Gps Geodesy- Casa Uno, James N. Kellogg, Timothy H. Dixon

Faculty Publications

In January 1988, scientists from over 25 organizations in 13 countries and territories cooperated in the largest Global Positioning System (GPS) campaign in the world to date (Table 1). 43 GPS receivers collected approximately 590 station-days of data in America, Samoa, Australia, Canada, Colombia, Costa Rica, Ecuador, New Zealand, Norway, Panama, Sweden, United States, West Germany, and Venezuela. The experiment was entitled CASA UNO, an acronym for Central and South America -- and uno is the Spanish word for one, designating first epoch measurements. The CASA UNO experiment was the first civilian effort implementing a global GPS satellite tracking network. …

Central And South America Gps Geodesy - Casa Uno, James N. Kellog, Tim Dixon

School of Geosciences Faculty and Staff Publications

In January 1988, scientists from over 25 organizations in 13 countries and territories cooperated in the largest Global Positioning System (GPS) campaign in the world to date (Table 1). 43 GPS receivers collected approximately 590 station-days of data in American Samoa, Australia, Canada, Colombia, Costa Rica, Ecuador, New Zealand, Norway, Panama, Sweden, United States, West Germany, and Venezuela. The experiment was entitled CASA UNO, an acronym for Central and South America – and uno is the Spanish word for one, designating first epoch measurements. The CASA UNO experiment was the first civilian effort implementing a global GPS satellite tracking network. …