5,598 research outputs found
Investigation of Landsat imagery on correlations between ore deposits and major shield structures in Finland
There are no author-identified significant results in this report
Investigation of LANDSAT imagery on correlations between ore deposits and major shield structures in Finland
The author has identified the following significant results. On the central Baltic Shield, the concept of drainage patterns can be extended to smaller scales in which case many cultural features become involved to the spatial patterns influenced by bedrock structure. Features resulting from agriculture activity and timbering often exaggerate the influence of the bedrock on the image texture
Use of satellite pictures for determining major shield fractures relevant for ore prospecting, northern Finland
The author has identified the following significant results. A combined analysis of LANDSAT 1 imagery, aeromagnetic and other maps, and aerial photos has revealed a dense network of bedrock fractures in northern Finland. They form several fracturing zones, which obviously represent surficial manifestations of major fractures. The fractures follow, in general, the eight main trends of crustal shear characteristics of the Baltic Shield, but show distinct deviations from them in detail. The major fracture zones divide the bedrock into a mosaic of polygonal blocks, which in many cases coincide with the main rock units of the area and are characterized by different patterns of internal fracturing. Known mineralizations show a tendency to concentrate along the fracture zones. Optical filtering of original LANDSAT images might provide a rapid tool for the analysis of major structural trends in extensive areas such as shields or entire continents
Finite Temperature Phase Diagrams of Gauge Theories
We discuss finite temperature phase diagrams of SU(N) gauge theory with
massless fermions as a function of the number of fermion flavors. Inside the
conformal window we find a phase boundary separating two different conformal
phases. Below the conformal window we find different phase structures depending
on if the beta function of the theory has a first or higher order zero at the
lower boundary of the conformal window. We also outline how the associated
behaviors will help in distinguishing different types of theories using lattice
simulations.Comment: 5 pages, 5 figure
Fractional Hardy inequalities and visibility of the boundary
We prove fractional order Hardy inequalities on open sets under a combined
fatness and visibility condition on the boundary. We demonstrate by
counterexamples that fatness conditions alone are not sufficient for such Hardy
inequalities to hold. In addition, we give a short exposition of various
fatness conditions related to our main result, and apply fractional Hardy
inequalities in connection to the boundedness of extension operators for
fractional Sobolev spaces.Comment: 30 pages, 3 figures. Minor revisions to the previous version. To be
published in Studia Mat
Investigation of LANDSAT imagery on correlations between ore deposits and major shield structures in Finland
The author has identified the following significant results. Half of the 24 lineaments found in the LANDSAT winter mosaic have not been recorded in earlier literature. Some distinct fracture zones of the basement seem not to be observable as lineaments in the LANDSAT imagery
Investigation of LANDSAT imagery on correlations between ore deposits and major shield structures in Finland
The author has identified the following significant results. Several regional lineaments appear to correlate with the distribution of ore deposits and showings. Combined study of LANDSAT summer and winter mosaics and color composites of geological, geomorphological, and geophysical maps makes the correlation more perceptible. The revealed pattern of significant lineaments in northern Finland is fairly regular. The most significant lineaments seen in LANDSAT mosaics are not detectable in single images
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