Matt D. Rowberry

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In recent years, many underground spaces such as caves and deep mines have been used to monitor geodynamic activity in the Western Carpathians and Bohemian Massif. In addition, long-term radon gas monitoring has also being undertaken in three of the caves. The observed radon concentrations have shown diurnal, seasonal and yearly variations. A significant(More)
Tectonic instability may be measured directly using extensometers installed across active faults or it may be indicated by anomalous natural gas concentrations in the vicinity of active faults. This paper presents the results of fault displacement monitoring at two sites in the Bohemian Massif and Western Carpathians. These data have been supplemented by(More)
Keywords: MATLAB s code TM-71 Moiré interference fringes Relative displacement Relative angular rotation EU-TecNet 1. Introduction The TM-71 was designed as a manual tool to measure the relative three dimensional movements that occur across a dis-continuity separating two adjacent blocks (Košˇtá k, 1969). It remains one of the most precise instruments of(More)
Cave radon concentration measurements reflect the outcome of a perpetual competition which pitches flux against ventilation and radioactive decay. The mass balance equations used to model changes in radon concentration through time routinely treat flux as a constant. This mathematical simplification is acceptable as a first order approximation despite the(More)
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