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Articles 331 - 332 of 332
Full-Text Articles in Earth Sciences
Relationships Between The Internal And External Evolution Of The Monte Cucco Karst Complex, Umbria, Central Italy, Fausto Guzzetti
Relationships Between The Internal And External Evolution Of The Monte Cucco Karst Complex, Umbria, Central Italy, Fausto Guzzetti
International Journal of Speleology
The relationships between the internal and external evolution of the Mt. Cucco karst complex are studied. A classic set of equations, involving the oxidation of hydrogen sulphide, originated at depth in an evaporitic formation, is used to explain the presence of massive gypsum deposits in the Mt. Cucco and the Faggeto Tondo caves. The distribution and the morphology of more than 30 caves in the system, the presence of gypsum, always located along faults, and the presence of broken stalactites and columns, suggest that the evolution of the karst system has been controlled by tectonic movements. Relationships between the development …
Coarsening Of Fine-Scale Exsolution Lamellae, John B. Brady
Coarsening Of Fine-Scale Exsolution Lamellae, John B. Brady
Geosciences: Faculty Publications
Diffusional exchange between the wedge-shaped terminations of fine-scale, coherent exsolution lamellae and the large flat sides of adjacent like lamellae is proposed as the principal mechanism for the coarsening of lamellar exsolution textures in silicate minerals. Following the methods of Gibbs (1906), a formula is derived for the chemical potential gradients due to interfacial energy effects that drive the proposed diffusion and coarsening....