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Physical Sciences and Mathematics Commons™
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- Carbonate crystallizations (1)
- Cave cements (1)
- Coastal karst (1)
- Community coalitions (1)
- Complexity (1)
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- Cova des Pas de Vallgornera (1)
- Description (1)
- Developmental evaluation (1)
- EBSD (1)
- Exploration (1)
- Fascicular-optic (1)
- History (1)
- Mallorca (1)
- Mg-calcite (1)
- Phreatic overgrowths (1)
- Policy advocacy (1)
- Public health (1)
- Radiaxial-fibrous (1)
- Southern Mallorca (1)
- Speleothems (1)
- Stalagmite; floods; XRF core scanning; elemental data; Southern Greece (1)
- Utilization-focused evaluation (1)
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Articles 1 - 8 of 8
Full-Text Articles in Physical Sciences and Mathematics
Radiaxial-Fibrous And Fascicular-Optic Mg-Calcitic Cave Cements: A Characterization Using Electron Backscattered Diffraction (Ebsd), Detlev K. Richter, Adrian Immenhauser, Rolf Dieter Neuser, Augusto Mangini
Radiaxial-Fibrous And Fascicular-Optic Mg-Calcitic Cave Cements: A Characterization Using Electron Backscattered Diffraction (Ebsd), Detlev K. Richter, Adrian Immenhauser, Rolf Dieter Neuser, Augusto Mangini
International Journal of Speleology
Electron backscattered diffraction (EBSD) applied to crystal fabric research in speleothems aids in our understanding of the origin of those fabrics. A significant advantage of this approach is the three dimensional data set of crystal c-axes. Here, we show a rare case of both convergent (radiaxial-fibrous) and divergent (fascicular-optic) orientations of the c-axes in pool calcites. The seemingly defective structure of the calcite lattice resulting in radiaxial-fibrous crystal orientations is probably caused by differential incorporation of Mg during crystal growth. The observation that radiaxial-fibrous and fascicular-optic fabrics co-exist in the same pool environment is remarkable and documents the complexity of …
Can Xrf Scanning Of Speleothems Be Used As A Non-Destructive Method To Identify Paleoflood Events In Caves?, Martin Finné, Malin Kylander, Meighan Boyd, Hanna S. Sundqvist, Ludvig Löwemark
Can Xrf Scanning Of Speleothems Be Used As A Non-Destructive Method To Identify Paleoflood Events In Caves?, Martin Finné, Malin Kylander, Meighan Boyd, Hanna S. Sundqvist, Ludvig Löwemark
International Journal of Speleology
We have developed a novel, quick and non-destructive method for tracing flood events in caves through the analysis of a stalagmite thick section with an XRF core scanner. The analyzed stalagmite has multiple horizons of fine sediments from past flood events intercalated with areas of cleaner calcite. Flood events detected from the elemental XRF core scanning data show good agreement with the position of flood horizons identified in petrographic thin sections. The geochemical composition of the individual flood layers shows that in certain cases the clay horizons had a distinct geochemical fingerprint suggesting that it may be possible to distinguish …
New Research In Cave Ledenica In Bukovi Vrh On Velebit Mt In Croatian Dinaric Karst, Mladen Garasic
New Research In Cave Ledenica In Bukovi Vrh On Velebit Mt In Croatian Dinaric Karst, Mladen Garasic
The International Workshop on Ice Caves
No abstract provided.
Time, Money, And Melting Ice: Proposal For A Coopertive Study Of The World’S Cave Ice In A Race Against Climate Change, George Veni, Lewis Land, Aurel Perşoiu
Time, Money, And Melting Ice: Proposal For A Coopertive Study Of The World’S Cave Ice In A Race Against Climate Change, George Veni, Lewis Land, Aurel Perşoiu
The International Workshop on Ice Caves
Climate change is a global phenomenon that is melting and threatening to melt ice deposits in many of the world’s ice caves. The National Cave and Karst Research Institute of the USA is concerned that major and important paleoclimate and paleoenvironmental records stored in cave ice will soon be lost, and is proposing an international collaborative effort to overcome funding and logistical challenges to sample and analyze at least a representative collection of ice from several regions before further melting occurs.
On The Mechanism Of The Naturally Formed Ice Spikes, Hi-Ryong Byun, Chang-Kyun Park
On The Mechanism Of The Naturally Formed Ice Spikes, Hi-Ryong Byun, Chang-Kyun Park
The International Workshop on Ice Caves
The formations of the ice spike, which is the ice bar risen upward from the ice surface in bowl and has been known as a mystery of the Mt. Mai in Jinan, Jeonbuk Korea, are observed and analyzed through the observation records on more than 60,000 bowls of water for 8 years and 7 days and nights' consecutive meteorological observations. Experiments making the ice bar in the refrigerator have also performed. As results, it is verified that the ice spike is not a mystery but a naturally grown ice bar caused by the volume expansion centralized to a certain point …
Use Of System Dynamics Modeling To Explicate The Theory-Of-Change Of A Social Marketing Innovation, Brian J. Biroscak
Use Of System Dynamics Modeling To Explicate The Theory-Of-Change Of A Social Marketing Innovation, Brian J. Biroscak
USF Tampa Graduate Theses and Dissertations
Community coalitions are an important part of the public health milieu and thus subject to many of the same external pressures as public health organizations--including changes in required strategic orientation. Many funding agencies have shifted their funding agenda from program development to policy change. Thus, the Florida Prevention Research Center created the Community-Based Prevention Marketing for Policy Development framework to teach community coalitions how to apply social marketing to policy change. The dissertation research reported here was designed to explicate the framework's theory-of-change. The research question was: "What are the linkages and connections between CBPM inputs, activities, immediate outcomes, intermediate …
Cova Des Pas De Vallgornera, (Mallorca, Spain): History Of Exploration And Cave Description, Antoni Merino, Antoni Mulet, Guiem Mulet, Antoni Croix, Anders Kristofersson, Francesc Gràcia, Miquel A. Perelló
Cova Des Pas De Vallgornera, (Mallorca, Spain): History Of Exploration And Cave Description, Antoni Merino, Antoni Mulet, Guiem Mulet, Antoni Croix, Anders Kristofersson, Francesc Gràcia, Miquel A. Perelló
International Journal of Speleology
The Cova des Pas de Vallgornera lies in the Llucmajor municipality, in southern Mallorca, and is the longest cave in the Balearic Islands. Currently its surveyed length is over 74,000 metres, including more than 17,000 of underwater extensions. The cave was discovered accidentally in 1968, but it was in 2004 when a major breakthrough shed light on its real extension and importance. The cave roughly shows two tiers of passages, apart from the underwater extensions, the first one is between 7 and 11 m above the mean sea level, the second one is about at the water table level. The …
Speleothems In Cova Des Pas De Vallgornera: Their Distribution And Characteristics Within An Extensive Coastal Cave From The Eogenetic Karst Of Southern Mallorca (Western Mediterranean), Antoni Merino, Joaquín Ginés, Paola Tuccimei, Michele Soligo, Joan J. Fornós
Speleothems In Cova Des Pas De Vallgornera: Their Distribution And Characteristics Within An Extensive Coastal Cave From The Eogenetic Karst Of Southern Mallorca (Western Mediterranean), Antoni Merino, Joaquín Ginés, Paola Tuccimei, Michele Soligo, Joan J. Fornós
International Journal of Speleology
The abundance and variety of speleothems are undoubtedly among the remarkable features of Cova des Pas de Vallgornera, the longest cave system in Mallorca Island developed in the eogenetic karst of its southern coast. Due to the monotonous carbonate lithology of the area, most of the speleothems are composed of calcite and in a few cases aragonite, although other minerals are also represented (e.g., gypsum, celestine, barite.). However, in spite of the rather common mineralogy of the speleothems, its distribution results strongly mediated by the lithologic and textural variability linked to the architecture of the Upper Miocene reefal rocks. Apart …