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Showing 1 to 20 of 60 for “"hot springs"”.
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Isolation, identification and characterisation of novel actinobacteria from Zambian hot-springs
… environmental isolates obtained from two Zambian hot-springs. The aim of this study was to isolate, characterise and screen novel actinobacteria for industrially relevant enzymes including hydantoinases. Fifty one actinobacteria were isolated. Isolates were characterized by a polyphasic approach …
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The characterisation of three hyperthermophilic archaea from New Zealand hot springs
… of hyperthermophilic archaea from New Zealand hot springs. Three organisms were chosen for investigation. The coccoid isolate Wai21.S1 is a novel strain of the genus Thermococcus that was isolated from a hot spring at Waimangu Volcanic Valley. It is only the second described fresh-water isolate …
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An investigation of factors determining the competitiveness of Taiwan's hot springs tourism sector
Hot springs have long been acknowledged as a special and significant natural resource. The practice of drinking water which emanates from hot springs and using it for bathing has occurred throughout history. Being endowed with natural hot springs all over the island, Taiwan possesses a comparative …
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Physical and chemical controls on carbonate precipitation in surficial hot springs and subterranean cold springs
Rimmed-pool deposits in surficial hot springs at Yellowstone National Park, WY, and cold springs in Fogelpole Cave, IL, are compared to determine physical and chemical parameters controls on carbonate precipitation. Macroscale (> 0.5mm) morphology and depositional patterns of carbonate …
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Incorporating Recent Geochemical and Isotopic Constraints in Age Dating the Waters of Hot Springs National Park, Arkansas
<p>Mean water age for spring discharge in Hot Springs National Park was calculated as approximately 4,400 years by Bedinger et al (1978) using carbon-14. Their analysis indicated that the water was a mixture of a small portion of cold water that was less than twenty years old with a preponderance …
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Access to Nature, Access to Health: The Government Free Bathhouse at Hot Springs National Park, 1877 to 1922
… issues in a prototypical public land reserve, Hot Springs Reservation (later Hot Springs National Park) in Arkansas. Originally protected so that its healing waters would be available to all, Hot Springs grew into a resort destination, and federal officials, residents, and bathers wrestled over …
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New heat flow values from Virginia
… -sec at Poor Mountain (37°02'N, 80°12'W), Hot Springs (38°00'N, 79°50'W), Back Creek (38°14'N, 79°49'W) and Vansant (37°12‘N, 82°06'W) respectively. The value of 0.87 mcal/cm² -sec agrees with Diment's Central Region for the eastern United States. Limited data support a model of moderately …
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Complex Fluid Dynamics: From Laminar to Geophysical Flows
… terrace architecture found at carbonate hot springs. Our numerical model predicts dynamical phenomena which are seen at real hot springs. It also produces patterns which have the same static statistical properties as those seen at real hot springs, and indicates that hot spring terraces …
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Structural Controls of the MacFarlane Geothermal System, Humboldt County, Nevada: New Insights Based on Detailed Geologic Mapping, Shallow Temperature Surveys, and Magnetic Data
… of the MacFarlane geothermal system. MacFarlane hot springs and the travertine fissure ridges lie within a relay ramp. The relay ramp is formed between two overlapping, north-northeast-striking, west-dipping Holocene normal faults exposed in Lake Lahontan sediments. Other mapped faults near the …
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A preliminary analysis of the lipid contents of a biofilm from a Yellowstone hydrothermal pool
The hot springs at Yellowstone National Park, such as Obsidian Pool, have been extensively studied as a source for previously unidentified microorganisms. Most of the previous studies focused on the genomic diversity of these environments, but recent interest in environmental samples for the study …
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CARBONIC SPRINGS AS DISTAL MANIFESTATIONS OF THE JEMEZ GEOTHERMAL SYSTEM, SAN YSIDRO, NEW MEXICO, HIGHLIGHTING THE IMPORTANCE OF FAULT PATHWAYS AND HYDROCHEMICAL MIXING.
… carried out on three groups of carbonic warm and hot springs in New Mexico, USA: 1) Tierra Amarilla springs (~ 20ºC), near San Ysidro south of Nacimiento Mountains, 2) Penasco springs (~ 20 ºC) along the Nacimiento fault west of the Nacimiento basement mountain block, and 3) Soda Dam, Jemez, and …
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Detailed Analysis of Geothermal Potential in Crescent Valley, North-Central Nevada
… geothermal system, including Hand-Me-Down Creek, Hot Springs Point, and three other unnamed areas. The Hand-Me-Down Creek hybrid structural setting along the Crescent Valley fault is the only documented relatively high temperature geothermal system identified in the basin. It contains an active …
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The Isolation and Characterization of Nannobacteria
… of waters and minerals from places such as hot springs, rivers and even a Martian meteorite. They have been named ''Nannobacteria" and hypothesized to play a role in the formation of minerals such as calcite and aragonite. This research attempts to investigate whether or not these structures …
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Microbial phylogenetic diversity preserved in facies-specific modern, recent, Holocene and Pleistocene hot-spring travertine deposits of Yellowstone and Turkey
… within modern-to-ancient terrestrial hot-spring calcium carbonate (CaCO3) limestone deposits called travertine. Microbial 16S rRNA gene sequences preserved within Modern travertine deposited within the Proximal Slope Facies (PSF) at Mammoth Hot Springs (MHS), Yellowstone National Park, …
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Late quaternary Alaskan paleoclimate : geoarchaeological insights into the Pleistocene-Holocene transition.
… in the Teklanika River Valley, and Serpentine Hot Springs on the Seward Peninsula. This work reveals a progressive transition from cold, dry, open tundra conditions following the Last Glacial Maximum to cool, moist, boreal forest conditions in the middle to late Holocene, though this transition …
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Geophysical Investigation of the Yellowstone Hydrothermal System
… features (e.g. geysers, fumaroles, mud pots, and hot springs), yet little is known about the hydrothermally active zones hundreds of meters beneath the features. Transient electromagnetic (TEM) soundings and 2D direct current (DC) resistivity profiles show that hydrothermal alteration at active …
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The Search For Volatile Biogenic Emissions In Geothermal Areas
… life can be detected and quantified in air above hot springs with Fourier transform infrared spectroscopy (FTIR). The stated hypothesis was refuted, as no chemicals of uniquely biological origin were detected with FTIR. A discussion of why no uniquely biological chemicals were detected with FTIR …
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MICROBIAL COMMUNITY ASSEMBLY AND DIVERSIFICATION OF THE GENUS CHLOROFLEXUS ALONG AN ALKALINE HOT SPRING GRADIENT
… of bacterial communities present in alkaline hot springs in Yellowstone National Park. I focus specifically on White Creek and Rabbit Creek in the Lower Geyser Basin. I show that, overall, the bacterial communities of both creeks are non-randomly assembled. However, at finer taxonomic scales, …
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The Search For Volatile Biogenic Emissions In Geothermal Areas
… life can be detected and quantified in air above hot springs with Fourier transform infrared spectroscopy (FTIR). The stated hypothesis was refuted, as no chemicals of uniquely biological origin were detected with FTIR. A discussion of why no uniquely biological chemicals were detected with FTIR …
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