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Download E-books Cave Exploration in Slovenia: Discovering Over 350 New Caves During Motorway Construction on Classical Karst (Cave and Karst Systems of the World) PDF

This publication makes a speciality of the outlet and exploration of greater than 350 formerly undiscovered caves of the Slovenian Karst, chanced on in the course of highway development paintings. The summarizes the making plans of site visitors roads and provides the recent findings acquired in the course of development, in addition to reviews on newly-discovered karst phenomena and karst waters and their protection.

Earthmoving paintings in the course of development has published a cross-section of the outside of the Classical Karst, coated karst with well-known underground stone forests and particular karst in breccia. study carried out in those caves has yielded a few new findings on how the karst floor and underground have been shaped, at the move of water via karst aquifers, and at the evolution of karst on numerous varieties of rock and less than a variety of stipulations. The paintings was once written by way of researchers from the ZRC SAZU Karst study Institute and the Institute of Geology AS CR. The reader will enjoy the authors’ collaboration with planners and developers, which bargains worthy insights for the making plans and execution in their personal actions in karst regions.

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Cemented into irregularly formed our bodies, with a pointy touch with unconsolidated sediment. Cementation happens in particular in white and greyish-brown sands which point out the touch kind of carbonate cementation (Fig. eleven. 4). a few elements are seriously cemented with calcite crystals measuring a number of centimetres in size. All sediments within the profile are characterised via secondary ferritization, specifically within the kind of iron crusts showing in tired fissures and layers the place erosion-related occasions are obvious in spots the place sedimentation was once interrupted. The sediments within the profile have been seriously fractured because of person sediment elements subsiding as a result of drying or tectonic occasions. The profile contained a sought after community of parallel fissures with areas among them starting from a number of millimetres to numerous centimetres. Collapsed zones have been additionally obvious in a few elements of sediments, to that end filled with reddish clays and calcite cement through infiltrated suggestions oversaturated with calcium carbonate. eleven. 2. 1 result of Mineralogical Analyses Fig. eleven. 2 The figure exhibits the series No. 1 within the decrease element of the profile which ends up with a limonite crust (along the scraper’s handle), and the sedimentation of the series No. 2 above the crust From the profile of clastic cave sediments, 21 samples have been taken, of which 6 have been analysed with the x-ray diffraction technique. All samples contained quartz 120 (62–93 %), muscovite/illite (4–11 percent) and chlorite (4–15 %). a comparatively great amount of microcline (8–10 percent) used to be detected merely in a single pattern, whereas samples published microcline content material in strains. strains of plagioclase have been chanced on purely in a single pattern. Mixed-composition minerals have been detected in a single of the samples (2 %), whereas one other pattern contained strains of them. Goethite was once found in samples (4 and five %), and a slightly great amount of calcite (24 percent) was once present in one pattern. Mineralogical analyses performed on cave sediments convey a comparatively uniform composition of the sunshine fraction (quartz, muscovite, microcline and plagioclase, additionally illite and chlorite), indicating their beginning within the weathered continues to be of the Eocene flysch. Goethite seems to be in either limonite crusts present in layers on the backside of the profile, which shaped whilst sedimentation used to be interrupted. The purple loam at the Fig. eleven. three The figure exhibits the series No. three within the backside section of the figure and above it the purple loam of the series No. four. The cave was once filled as much as the roof. The limestone above the cave sediments crumbled into unmarried blocks eleven Cave Sediments from the Infilled Cave close to Divača most sensible of the cave sediment profile originates from crimson soil which for this reason eroded and used to be transferred to the cave. Calcite represents cement which, in convinced spots, certain clastic sediments (especially quartz sand) into relatively porous sandstone. eleven. 2. 2 result of Palaeomagnetic Analyses All chosen samples underwent entire alternating field demagnetization (partially thermal). easy magnetic parameters have been made up our minds for the profile measuring 6 m in top.

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