Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Institution
- Keyword
-
- Turkey (11)
- Geochemistry (4)
- Caves (3)
- Speleogenesis (3)
- Mexico (2)
-
- Speleothems (2)
- 13C (1)
- 222Rn (1)
- Adana Basin (1)
- Aggradational crystal growth (1)
- Algae (1)
- Alluvial fan (1)
- Alunite (1)
- Anatolide-Tauride carbonate platform (1)
- Anchialine fauna (1)
- Anisian (1)
- Ankara clay (1)
- BLEG sampling (1)
- Baboons (1)
- Balıkesir thermal waters (1)
- Basalt (1)
- Bimodal volcanism (1)
- Biogenic cave forms (1)
- Biometry (1)
- Biostratigraphy (1)
- Bivalvia (1)
- Bomb-spike dating (1)
- Bornova Flysch Zone (1)
- Boulangerite (1)
- Burial (1)
Articles 1 - 30 of 46
Full-Text Articles in Physical Sciences and Mathematics
The Bivalvia And Gastropoda Fauna Of The Ammonitico Rosso Facies Of Late Sinemurian-Early Pliensbachian Of The Kösreli̇k Region (Ne Ankara-Turkey); First Record Of Annelid Polychaete Species And Their Paleogeographic And Paleoecologic Characteristics, Yavuz Okan, İzzet Hoşgör
Bulletin of the Mineral Research and Exploration
No abstract provided.
Pre - Neogene Tectonostratigraphy Of Di̇lek Peninsula And The Area Surrounding Söke And Selçuk, Ali Çakmakoğlu
Pre - Neogene Tectonostratigraphy Of Di̇lek Peninsula And The Area Surrounding Söke And Selçuk, Ali Çakmakoğlu
Bulletin of the Mineral Research and Exploration
No abstract provided.
Inside Front & Back Covers: Changes And Variability Of Urban Sprawl - Implications For Local Climate Change, Robert Hellström
Inside Front & Back Covers: Changes And Variability Of Urban Sprawl - Implications For Local Climate Change, Robert Hellström
Bridgewater Review
No abstract provided.
Short Note On Polyphases Pd-Pt-Te Mineralisations Which Is Determined In Rutile Bearing Berit Metaophiolite Chromitites In Kahramanmaraş, Hatice Kozlu Erdal
Short Note On Polyphases Pd-Pt-Te Mineralisations Which Is Determined In Rutile Bearing Berit Metaophiolite Chromitites In Kahramanmaraş, Hatice Kozlu Erdal
Bulletin of the Mineral Research and Exploration
No abstract provided.
Universal Transverse Mercator And Lambert's Conformal Conic Projections, Cemal Göçmen
Universal Transverse Mercator And Lambert's Conformal Conic Projections, Cemal Göçmen
Bulletin of the Mineral Research and Exploration
No abstract provided.
A New Age Recovery About The Mining History In Anatolia; An Ore Hull Of 2500 Year Old, Ahmet Kartalkanat
A New Age Recovery About The Mining History In Anatolia; An Ore Hull Of 2500 Year Old, Ahmet Kartalkanat
Bulletin of the Mineral Research and Exploration
No abstract provided.
The First Findings On The Origin Of Alveolar Disintegration At The Western Shores Of Geli̇bolu Peninsula, Ahmet Evren Ergi̇nal, Ahmet Gönüz, Mustafa Bozcu, A. Suat Ateş, Ziya S. Çeti̇ner
The First Findings On The Origin Of Alveolar Disintegration At The Western Shores Of Geli̇bolu Peninsula, Ahmet Evren Ergi̇nal, Ahmet Gönüz, Mustafa Bozcu, A. Suat Ateş, Ziya S. Çeti̇ner
Bulletin of the Mineral Research and Exploration
No abstract provided.
Anthropogenical Effects On The Processes In The Göksu Delta, Mersi̇n-Turkey, Mustafa Keçer, Tamer Y. Duman
Anthropogenical Effects On The Processes In The Göksu Delta, Mersi̇n-Turkey, Mustafa Keçer, Tamer Y. Duman
Bulletin of the Mineral Research and Exploration
No abstract provided.
Clay Mineralization Of The Neogene Aged Volcanics Of The Northeastern Si̇vri̇hi̇sar (Mülk-Demi̇rci̇), Zehra Karakaş, Baki Varol, Sonay Boyraz
Clay Mineralization Of The Neogene Aged Volcanics Of The Northeastern Si̇vri̇hi̇sar (Mülk-Demi̇rci̇), Zehra Karakaş, Baki Varol, Sonay Boyraz
Bulletin of the Mineral Research and Exploration
No abstract provided.
Grand Canyon Reveals Nautiloid Mass Kill Event (Faith & Science Update), John T. Baldwin
Grand Canyon Reveals Nautiloid Mass Kill Event (Faith & Science Update), John T. Baldwin
Perspective Digest
No abstract provided.
Filograna Minor Nov. Sp. (Worm Tube) From The Middle Triassic (Anisian) Reef Boulders Of The Karaburun Peninsula, Western Turkey, Baba Senowbari-Daryan, Michael Link, İsmai̇l Işintek
Filograna Minor Nov. Sp. (Worm Tube) From The Middle Triassic (Anisian) Reef Boulders Of The Karaburun Peninsula, Western Turkey, Baba Senowbari-Daryan, Michael Link, İsmai̇l Işintek
Turkish Journal of Earth Sciences
A colonial serpulid worm tube, Filograna minor nov. sp., from the Anisian reef boulders of the Karaburun Peninsula, Western Turkey is described. The Filograna-bearing boulders occur together with Anisian reef boulders within the Upper Anisian siliciclastic deposits of the Gerence Formation. Filograna minor differs from the Norian species Filograna serialis, described by Senowbari-Daryan and Link from the Taurus Mountains, by the smaller dimensions of the tubes.
Eogenetic Karst, Glacioeustatic Cave Pools And Anchialine Environments On Mallorca Island: A Discussion Of Coastal Speleogenesis, Angel Ginés, Joaquín Ginés
Eogenetic Karst, Glacioeustatic Cave Pools And Anchialine Environments On Mallorca Island: A Discussion Of Coastal Speleogenesis, Angel Ginés, Joaquín Ginés
International Journal of Speleology
Coastal karst is characterized by special geomorphologic and hydrodynamic conditions as well as by peculiar sedimentary, geochemical, and biospeleological environments. Generally, the more distinctive karstic features produced near the coastline are strongly influenced by sea-level changes, which generate a broad set of interactions between littoral processes and karst development. The glacioeustatic rises and falls of sea level affected the littoral karst in different ways, namely: vertical and horizontal shifts in the shoreline position, changes in elevation of the local water table, and vertical displacements of the halocline. Most eogenetic karsts have been subjected over long time spans to repeated changes …
Bomb-Spike Dating Of A Mummified Baboon In Ludwig Cave, Namibia, Greg Hodgins, George A. Brook, Eugene Marais
Bomb-Spike Dating Of A Mummified Baboon In Ludwig Cave, Namibia, Greg Hodgins, George A. Brook, Eugene Marais
International Journal of Speleology
In 1982 a mummified adult female baboon was discovered on a ledge in Ludwig Cave in Namibia. A toe bone was removed for dating in July 1995. AMS radiocarbon dating of bone collagen, tendon, and skin indicates a post-modern age. Application of the atomic bomb-spike calibration curve suggests death in late 1977 and an age at death of around 19 years. Baboons roost in the cave and the mummified female, along with a mummified juvenile male discovered in 2002 and three rotting corpses discovered in 1995, were probably chased by other baboons or by leopards down a ca. 6 m …
Acadian Biospeleology: Composition And Ecology Of Cave Fauna Of Nova Scotia And Southern New Brunswick, Canada, Max Moseley
Acadian Biospeleology: Composition And Ecology Of Cave Fauna Of Nova Scotia And Southern New Brunswick, Canada, Max Moseley
International Journal of Speleology
The vertebrate and invertebrate fauna, environment and habitats of caves and disused mines in Nova Scotia and southern New Brunswick are provisionally catalogued and described, based on field collections made over many years. The area was glaciated and the subterranean fauna consists of non-troglobites all of which have arrived and colonised the caves during or following final recession of the Pleistocene glaciers. The statistical composition of the fauna at the higher taxonomic level is similar to that in Ontario, but is less species rich and there are some notable ecological and other differences. Porcupine dung accumulations are an important habitat …
Sails: A New Gypsum Speleothem From Naica, Chihuahua, Mexico, Tullio Bernabei, Paolo Forti, Roberto Villasuso
Sails: A New Gypsum Speleothem From Naica, Chihuahua, Mexico, Tullio Bernabei, Paolo Forti, Roberto Villasuso
International Journal of Speleology
The caves of Naica (Chihuahua, Mexico) are perhaps the most famous mine caves of the world due to the presence of gigantic gypsum crystals. Nevertheless, very little research has been carried out on this karst area until now. A multidisciplinary investigation started in 2006 with the aim not only to define the genesis and the age of the Naica gypsum crystals, but also on other scientific aspects of these caves. This paper describes a completely new type of gypsum speleothem: the “sails”, observed only inside the Cueva de las Velas, one of the caves of the Naica system. This speleothem …
A Taxonomic Survey Of Lamp Flora (Algae And Cyanobacteria) In Electrically Lit Passages Within Mammoth Cave National Park, Kentucky, Thomas Smith, Rick Olson
A Taxonomic Survey Of Lamp Flora (Algae And Cyanobacteria) In Electrically Lit Passages Within Mammoth Cave National Park, Kentucky, Thomas Smith, Rick Olson
International Journal of Speleology
A taxonomic survey of the lamp flora from electrically lit passages in Mammoth Cave, Mammoth Cave National Park, identified 28 species. Overall, cyanobacteria were dominant represented by 14 species (50% of the total), green algae had eight species (29%), and six diatoms species (21%) were present. There was not a correlation between species diversity and temperature, but there is a general trend of increasing diversity with warmer temperatures. There were two algal or cyanobacterial species identified in this study that overlapped with previous studies. There is a lack of continuity between previous studies only having one species identified in more …
Seasonal Variations Of Co2 And 222Rn In A Mediterranean Sinkhole - Spring (Causse D’Aumelas, Se France), Christelle Batiot-Guilhe, Jean-Luc Seidel, Hervé Jourde, Olivier Hébrard, Vincent Bailly-Comte
Seasonal Variations Of Co2 And 222Rn In A Mediterranean Sinkhole - Spring (Causse D’Aumelas, Se France), Christelle Batiot-Guilhe, Jean-Luc Seidel, Hervé Jourde, Olivier Hébrard, Vincent Bailly-Comte
International Journal of Speleology
Carbon dioxide and 222Rn monitoring of the atmosphere of a Mediterranean sink hole - spring (SE France) during two hydrological cycles (from September 2004 to September 2006) showed seasonal variations with very high concentrations during summer (greater than 6% and 20 000 Bq/m3, respectively). Gas dynamics in caves often show seasonal variations. Meteorological parameters (barometric pressure and temperature mainly), cave geometry and fracture networks control exchanges between the cavity and outside atmosphere. Carbon dioxide and 222Rn may have different sources (atmosphere, soil, bedrock, deep gas diffusion, in situ oxidation of organic matter and, in some caves, …
Climatic Differences And Similarities Between Indian And East Asian Monsoon Regions Of China Over The Last Millennium: A Perspective Based Mainly On Stalagmite Records, Ming Tan
International Journal of Speleology
Cave sediments, especially stalagmites, have been providing absolute dated climate records that can extend from the present to over 500,000 years ago. Based on the reconstructed temperature time series, a comprehensive overview of the climatic differences and similarities between the Indian and the East Asian Monsoon regions of China over the last millennium is presented. Evidence from accurately dated and high-resolution records including stalagmites, ice cores and tree rings show that there was a “Medieval Warm Period” (around 1000 to 1400 AD) in north and east China where climate is dominated by the East Asian monsoon; whilst no such interval …
The Impact Of Host Rock Geochemistry On Bacterial Community Structure In Oligotrophic Cave Environments, Hazel A. Barton, Nicholas M. Taylor, Michael P. Kreate, Austin C. Springer, Stuart A. Oehrle, Janet L. Bertog
The Impact Of Host Rock Geochemistry On Bacterial Community Structure In Oligotrophic Cave Environments, Hazel A. Barton, Nicholas M. Taylor, Michael P. Kreate, Austin C. Springer, Stuart A. Oehrle, Janet L. Bertog
International Journal of Speleology
Despite extremely starved conditions, caves contain surprisingly diverse microbial communities. Our research is geared toward understanding what ecosystems drivers are responsible for this high diversity. To asses the effect of rock fabric and mineralogy, we carried out a comparative geomicrobiology study within Carlsbad Cavern, New Mexico, USA. Samples were collected from two different geologic locations within the cave: WF1 in the Massive Member of the Capitan Formation and sF88 in the calcareous siltstones of the Yates Formation. We examined the organic content at each location using liquid chromatography mass spectroscopy and analyzed microbial community structure using molecular phylogenetic analyses. In …
Speleothems As Indicators Of Wet And Dry Periods, Ian John Fairchild, Emily Anne Mcmillan
Speleothems As Indicators Of Wet And Dry Periods, Ian John Fairchild, Emily Anne Mcmillan
International Journal of Speleology
Calcareous speleothems provide a record of dripwater composition which in turn is a function of climatic conditions. The historical focus of speleothem palaeoclimate studies has been on the derivation of palaeotemperatures through oxygen isotope studies. However, it is now realized that water availability is a more generally important control on their characteristics. Growth rate and growth morphology in principle should give rise to recognizable changes at low flow. However, accidental plumbing effects during aquifer evolution, can also lead to variations in water supply and it is not easy to distinguish these effects. In areas where there is a strong amount …
The Polygenetic Caves Of Cuatro Ciénegas (Coahuila, Mexico): Morphology And Speleogenesis, Leonardo Piccini, Paolo Forti, Italo Giulivo, Marco Mecchia
The Polygenetic Caves Of Cuatro Ciénegas (Coahuila, Mexico): Morphology And Speleogenesis, Leonardo Piccini, Paolo Forti, Italo Giulivo, Marco Mecchia
International Journal of Speleology
The Cuatro Ciénegas area is renown worldwide for its thermal springs, which feed a unique ecosystem consisting of many pools, lakes and marshes. The pools also represent a very important water resource in a region characterized by scarce rainfalls. Field investigation has emphasized the role of karst in the hydrogeology of the area. Only few and restricted forms of surface karst are represented; caves are mainly relics of old speleogenetic phases of thermal and bathyphreatic water flow.
Sulfur And Lead Isotope Investigations Of The Carbonate-Hosted Pb-Zn Deposits In The Yahyalı Region, Kayseri, Southern Turkey, Osman Koptagel, Ulvi̇ Ulusoy, Anthony E. Fallick
Sulfur And Lead Isotope Investigations Of The Carbonate-Hosted Pb-Zn Deposits In The Yahyalı Region, Kayseri, Southern Turkey, Osman Koptagel, Ulvi̇ Ulusoy, Anthony E. Fallick
Turkish Journal of Earth Sciences
Carbonate-hosted Pb-Zn deposits are common in the Yahyalı region (Taurus Belt) with galena the most abundant sulfide mineral. The mean d34S values for Göynük, Celaldağı Desandre, Demircilik, Tekke, Havadan and Suçatı deposits were +0.2±0.5, +9.3±0.8, +10.7±1.3, +10.8±1.3, +11.5±2.4, -4.2±0.4%o, respectively. The mean 206Pb/204Pb, 207Pb/204Pb and 208Pb/204Pb measurements for the studied deposits were 18.968±0.005, 15.741±0.005 and 39.074±0.016 for Göynük, 18.702±0.006, 15.715±0.006 and 38.883±0.021 for Celaldağı Desandre, 18.618±0.020, 15.727±0.008 and 38.852±0.032 for Demircilik, 18.808±0.017, 15.751±0.028 and 38.983±0.166 for Suçatı. The sulfur isotope systematics imply that sulfur originated from a mixture of different sources for the Göynük and Suçatı deposits, but was probably …
Different Modes Of Stress Transfer In A Strike-Slip Fault Zone: An Example From The North Anatolian Fault System In Turkey, Osman Bektaş, Yener Eyüboğlu, Nafi̇z Maden
Different Modes Of Stress Transfer In A Strike-Slip Fault Zone: An Example From The North Anatolian Fault System In Turkey, Osman Bektaş, Yener Eyüboğlu, Nafi̇z Maden
Turkish Journal of Earth Sciences
The dextral North Anatolian Fault System (NAFS) extends for well over 1000 km from the compressive tectonic domain of eastern Anatolia into the broad and diverse tectonic domain of the western Anatolian, Marmara and Aegean regions. These different tectonic regimes are characterized by a narrow deformation zone in the east and a much broader deformation zone with multiple sub-parallel fault zones in the west. The spatial and temporal distribution of large historical and modern earthquakes (Mw>5) shows two distinctive macro-seismic zones in the eastern and western parts of the NAFS. The eastern macro-seismic zone, between the towns of Erzincan …
Stream Sediment Geochemical Exploration For Gold In The Kazdağ Dome In The Biga Peninsula, Western Turkey, Hüseyi̇n Yilmaz
Stream Sediment Geochemical Exploration For Gold In The Kazdağ Dome In The Biga Peninsula, Western Turkey, Hüseyi̇n Yilmaz
Turkish Journal of Earth Sciences
The Tuztaşı Au-Ag mineralized system was discovered within the Kazdağ dome using BLEG (bulk leach extractable gold) and 180-µm stream sediment geochemical data collected across the Biga Peninsula in western Turkey. The deposit is located within the hinge of an antiform consisting mainly of high-grade metamorphic and mélange rocks that include the Altınoluk Pb-Zn-Cu-Ag-Au and Evciler Fe-Au-Cu deposits on the southern and on the northern flanks, respectively; no mineralization has been reported prior to this work which was first carried out in 1996 between Altınoluk and Evciler. The BLEG Ag/Au ratios at Tuztaşı (max 87) and Altınoluk (max 43) are …
Environmental Impact And Drainage Geochemistry In The Vicinity Of The Harput Pb-Zn-Cu Veins, Elazığ, Se Turkey, Leyla Kalender, Cemal Bölücek
Environmental Impact And Drainage Geochemistry In The Vicinity Of The Harput Pb-Zn-Cu Veins, Elazığ, Se Turkey, Leyla Kalender, Cemal Bölücek
Turkish Journal of Earth Sciences
The aim of this study was to examine the environmental impact of major, minor and rare-earth elements (REE) in spring waters and major and minor elements in stream sediments proximal to known vein-type Pb-Zn-Cu ores. Accordingly, a total of 21 water samples were collected from natural springs in the Köprücük, Çolaklı, Kabakçılar and Ekinli areas where ore-bearing rocks are widely exposed. Stream-sediment samples were taken from the Kurt, Kızıldağ and Karacalar and Billurik streams, and a total of 57 samples were sieved to three different size fractions (-80 +140, -140 +200 and -200 mesh) and analyzed by ICP-MS and IE …
Lake Hazar Basin: A Negative Flower Structure On The East Anatolian Fault System (Eafs), Se Turkey, Ercan Aksoy, Murat İnceöz, Ali̇ Koçyi̇ği̇t
Lake Hazar Basin: A Negative Flower Structure On The East Anatolian Fault System (Eafs), Se Turkey, Ercan Aksoy, Murat İnceöz, Ali̇ Koçyi̇ği̇t
Turkish Journal of Earth Sciences
The East Anatolian Fault System (EAFS) is a 30-km-wide, 700-km-long and NE-trending sinistral strike-slip megashear belt between the Anatolian platelet in the northwest and African-Arabian plates in the southeast. It is located between Karlıova County in the NE and Karataş (Adana)-Samandağ (Antakya) in the SW. In the Lake Hazar region, the EAFS consists of five fault zones. These are, from north to south, the Elazığ fault zone, the Uluova fault zone, the Sivrice fault zone, the Adıyaman fault zone and the Lice-Çermik fault zone; in previous studies only the Sivrice fault zone has been reported to be part of the …
Retention And Transport Of Hexavalent Chromium In Calcareous Karst Soils, İrfan Yolcubal, Ni̇hat Hakan Akyol
Retention And Transport Of Hexavalent Chromium In Calcareous Karst Soils, İrfan Yolcubal, Ni̇hat Hakan Akyol
Turkish Journal of Earth Sciences
Hexavalent chromium, which is a highly toxic and soluble form of the element chromium, is a common soil and groundwater contaminant found in many contaminated sites throughout the world and poses a serious risk to human health when released into environment. The objective of this study was to determine transport and retention behaviour of aqueous Cr(VI) species in a highly calcareous and alkaline top soil of a karst system that is vulnerable to contamination. Batch sorption studies and column experiments conducted at both saturated and unsaturated steady-state flow conditions were used to evaluate the sorption/desorption and the transport of Cr(VI) …
Constraints On The Origin Of The Balıkesir Thermal Waters (Turkey) From Stable Isotope (\Delta^{18}O, \Deltad, \Delta^{13}C, \Delta^{34}S) And Major-Trace Element Compositions, Hali̇m Mutlu
Turkish Journal of Earth Sciences
The Balıkesir thermal waters in northwestern Turkey have discharge temperatures in the range of 31.8-98.5 ºC, near neutral pH values of 6.40 to 8.40 and TDS contents between 327 and 2578 mg/l. Samples display variable chemical compositions changing from high-temperature Na_2SO_4-NaHCO_3 waters to warmer CaHCO_3 waters. Trace element concentrations of the waters show significant variation. Comparison between the concentrations of alkaline earth metals in waters and carbonate deposits reveals mobile behavior for Mg and Ba. The ratio of strontium to calcium concentrations in solid and liquid phases was found to be almost the same. Li/Cs and B/Cl ratios of waters …
Origin Of Kaolin Deposits: Evidence From The Hisarcık (Emet-Kütahya) Deposits, Western Turkey, Ali̇ Sayin
Origin Of Kaolin Deposits: Evidence From The Hisarcık (Emet-Kütahya) Deposits, Western Turkey, Ali̇ Sayin
Turkish Journal of Earth Sciences
Kaolin deposits, situated approximately 20 km south of Hisarcık, have been formed by the alteration of dacite and dacitic tuffs related to the Miocene volcanism associated with extensional tectonics. The Hisarcık kaolin deposits occur in the Kızılcukur, Ulaşlar and Kurtdere areas. Kaolinite is the only clay mineral associated with a-quartz, K-feldspar, plagioclase, alunite, natroalunite and hematite in some kaolins, whereas, other kaolinite accompanies smectite, which represents a moderate kaolinization. Low-cristobalite is the dominant silica mineral in these kaolins. In spite of strong kaolinization, the kaolins contain a high amount of finely-disseminated a-quartz in places, resulting in low Al_2O_3 values (13.80 …
Effects Of Compaction Parameters On Heavy Metal Mass Transport In Ankara Clay Liner: Experimental Approach, M. Zeki̇ Çamur, Füsun Canpolat, Hasan Yazicigi̇l
Effects Of Compaction Parameters On Heavy Metal Mass Transport In Ankara Clay Liner: Experimental Approach, M. Zeki̇ Çamur, Füsun Canpolat, Hasan Yazicigi̇l
Turkish Journal of Earth Sciences
Mass transports of Cl, Cd, Cr, Cu, Fe, K, Mn, Ni, Pb and Zn ions through the Ankara clay liner was prepared under two different compaction conditions, and were studied experimentally on the bases of sorption and hydrodynamic dispersion processes. According to geotechnical tests, the Ankara clay material is highly plastic, inorganic clay having a liquid limit of 73, a plastic limit of 29 and a plasticity index of 44. Optimum compaction of the material requires 32% water content and 1.413 g/cm^3 dry density. Two materials, prepared using half of the optimum water content but optimum energy conditions (I) and …