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Academic literature on the topic 'Tonsteins'

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Published: 4 June 2021
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Journal articles on the topic "Tonsteins"

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Kokowska-Pawłowska, Magdalena, and Jacek Nowak. "Phosphorus minerals in tonstein; coal seam 405 at Sośnica-Makoszowy coal mine, Upper Silesia, southern Poland." Acta Geologica Polonica 63, no. 2 (June 1, 2013): 271–81. http://dx.doi.org/10.2478/agp-2013-0012.

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Abstract Kokowska-Pawłowska, M. and Nowak, J. 2013. Phosphorus minerals in tonstein; coal seam 405 at Sośnica- Makoszowy coal mine, Upper Silesia, southern Poland. Acta Geologica Polonica, 63 (2), 271-281. Warszawa. The paper presents results of research on tonstein, which constitutes an interburden in coal seam 405 at the Sośnica- Makoszowy coal mine, Makoszowy field (mining level 600 m), Upper Silesia, southern Poland. The mineral and chemical compositions of the tonstein differ from the typical compositions described earlier for tonsteins from Upper Silesia Coal Basin area. Additionally, minerals present in the tonsteins include kaolinite, quartz, kaolinitised biotite and feldspars. The presence of the phosphatic minerals apatite and goyazite has been recognized. The presence of gorceixite and crandallite is also possible. The contents of CaO (5.66 wt%) and P2O5 (6.2 wt%) are remarkably high. Analysis of selected trace elements demonstrated high contents of Sr (4937 ppm) and Ba (4300 ppm), related to the phosphatic minerals. On the basis of mineral composition the tonstein has been identified as a crystalline tonstein, transitional to a multiplied one.
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Weiss, Z., A. Baronnet, and M. Chmielova. "Volcanoclastic minerals of some Czechoslovakian tonsteins and their alteration." Clay Minerals 27, no. 3 (September 1992): 269–82. http://dx.doi.org/10.1180/claymin.1992.027.3.01.

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AbstractIn the Czechoslovak part of the Upper Silesian Coal Basin (Ostrava-Karvina Coal Basin), only part of the Upper Carboniferous (Namurian A, B, C and Westphalian A) is well developed, and tonsteins, which are clayey rocks or claystones, occur as thin, clayey interlayers in the coal seams. Two types of primary volcanic mineral assemblages were identified in four tonstein samples from different coal seams; the first type is characterized by the presence of biotite and sanidine, and the second by the presence of biotite, bytownite and Ca-amphibole. All tonsteins studied contained kaolinite minerals, volcanic quartz grains, crystals of zircon and apatite. Separated biotite flakes with an admixture of kaolinite layers were identified as 1M polytype. The flakes without kaolinite minerals were identified as epitactic overgrowth of 1M and complex polytypes, and twinned crystals of 2M1 polytype. Kaolinization of biotite flakes was observed in all tonstein samples studied. Kaolinite single layers (7 Å) as well as two-layer polytype of kaolinite minerals (14 Å) sandwiched between biotite layers (10 Å) were identified by HRTEM imaging.
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Spears, D. A., and P. C. Lyons. "An update on British Tonsteins." Geological Society, London, Special Publications 82, no. 1 (1995): 137–46. http://dx.doi.org/10.1144/gsl.sp.1995.082.01.07.

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Tiping, Ding. "Tonsteins: Altered Volcanic-Ash Layers in Coal-Bearing Sequences." Geochimica et Cosmochimica Acta 58, no. 16 (August 1994): 3541. http://dx.doi.org/10.1016/0016-7037(94)90107-4.

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Triplehorn, Don M., Bruce F. Bohor, and William J. Betterton. "CHEMICAL DISAGGREGATION OF KAOLINITIC CLAYSTONES (TONSTEINS AND FLINT CLAYS)." Clays and Clay Minerals 50, no. 6 (December 1, 2002): 766–70. http://dx.doi.org/10.1346/000986002762090164.

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6

Lyons, Paul C., D. A. Spears, W. F. Outerbridge, Roger D. Congdon, and Howard T. Evans. "Euramerican tonsteins: overview, magmatic origin, and depositional-tectonic implications." Palaeogeography, Palaeoclimatology, Palaeoecology 106, no. 1-4 (January 1994): 113–34. http://dx.doi.org/10.1016/0031-0182(94)90006-x.

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Hill, Patrick Arthur. "Tonsteins of Hat Creek, British Columbia: A preliminary study." International Journal of Coal Geology 10, no. 2 (August 1988): 155–75. http://dx.doi.org/10.1016/0166-5162(88)90027-4.

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Thompson, Leah N., Robert B. Finkelman, and Sergey I. Arbuzov. "Water-rock interactions: the formation of an unusual mineral assemblage found in a Siberian coal." E3S Web of Conferences 98 (2019): 01050. http://dx.doi.org/10.1051/e3sconf/20199801050.

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Volcanic ash is regularly found in coal and is particularly common in the Minusinsk coal basin in southern Siberia, Russia. Ash deposits in coal are usually observed in the form of thinly bedded, kaolinite-rich layers called tonsteins. The coal we studied by scanning electron microscopy with an energy dispersive detector contained many of the minerals typically found in tonsteins: kaolinite groundmass, volcanogenic phenocrysts such as K-feldspar, quartz, apatite, and zircon, along with secondary minerals such as galena, sphalerite, and REE minerals. However, in addition to these commonly observed minerals, the groundmass contains a rare calcium-bearing magnesian siderite in roughly equal proportion to the kaolinite. Ca-Mg siderite has only been reported in a few Australian coals and never at these relatively high proportions. The relative levels of K-feldspar, apatite, and quartz are consistent with a parent magma of felsic to intermediate composition. The Ca-rich-Mg siderite appears to have developed late in the diagenetic process, likely as a result of the dissolution of calcic feldspars, micas, and mafic minerals in the acidic peat waters releasing calcium, iron, and magnesium which reacted with carbon dioxide from the decomposing plant matter.
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MATOS, SÉRGIO LUÍS FABRIS DE, JORGE KAZUO YAMAMOTO, JORGE HACHIRO, and ARMANDO MÁRCIO COIMBRA. "TONSTEINS DA FORMAÇÃO RIO BONITO NO DEPÓSITO DE CARVÃO CANDIOTA, RS." Revista Brasileira de Geociências 30, no. 4 (December 1, 2000): 679–84. http://dx.doi.org/10.25249/0375-7536.2000304679684.

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Łapot, W. "Textures and chemistry of tonsteins from the Upper Silesian Coal Basin (GZW), Poland." Neues Jahrbuch für Geologie und Paläontologie - Monatshefte 1994, no. 1 (February 7, 1994): 41–53. http://dx.doi.org/10.1127/njgpm/1994/1994/41.

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Dissertations / Theses on the topic "Tonsteins"

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Nunt-jaruwong, Sorawit School of Biological Earth &amp Environmental Sciences UNSW. "Engineering geology of the Patonga Claystone, Central Coast, New South Wales, with particular reference to slaking behaviour." Awarded by:University of New South Wales. School of Biological, Earth and Environmental Sciences, 2006. http://handle.unsw.edu.au/1959.4/27335.

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The Patonga Claystone, a red bed facies in the Narrabeen Group of the Sydney Basin, is one of the most unfavorable rock units in the basin from a geotechnical point of view. This rock unit is composed of sandstone, siltstone, mudstone and claystone. One of the unfavorable characteristics is the low shear strength, which causes instability of cut slopes; another is its slaking-prone behaviour. Numerous measurements of geotechnical properties, along with extensive mineralogical and geochemical determinations, were carried out to identify cause of this slaking behaviour. Key techniques were the use of quantitative X-ray diffractometry for mineralogical analysis, and the determination of slake durability index and related properties to evaluate the slaking behaviour under both standard and more extended conditions. Standard (two cycle) slake durability test results indicate a range from low to high slake durability index values, with some mudstone samples having very low durability and some sandstones having very high slake durability indices. Jar slake test results indicate that the rock samples break rapidly and/or develop several fractures (Ij = 4) in an as-received state, but degrade to a pile of flakes or mud (Ij = 1) if the samples are oven dried before testing. The results for jar slake testing of oven-dried material are comparable, for individual samples, to those obtained from the more comprehensive slake durability tests. The mineralogy of the samples was evaluated by quantitative X-ray diffraction techniques using the Rietveld-based Siroquant processing system. Comparison to independent chemical data show a generally good level of agreement, suggesting that the mineralogical analysis results are consistent with the chemical composition of the individual rock samples. Good correlations were also obtained between clay mineralogy determined from orientedaggregate XRD analysis of the <2 micron fraction and the results from powder diffractometry and Siroquant analysis of the whole-rock samples. Evaluation of the slake durability characteristics and other geotechnical properties in relation to the quantitative mineralogy suggests that quartz and feldspar form a rigid framework in the rocks that resists the disruptive pressures that cause slaking. Expansion of the clay minerals by various processes, including the incorporation of water into the interlayer spaces of illite/smectite as well as changes in pore pressures associated with entry of water into micro-fractures in the clay matrix, are thought to produce the disruptions that cause slaking and degradation. An abundant clay matrix also reduces the strength of the rock materials, probably because of the less rigid nature of the clay minerals relative to the quartz and feldspar particles. As well as the mineralogy, the loss on ignition (LOI) and water absorption percentage were found to provide good indicators of longer-term slaking behaviour. Both properties are also related to the overall clay content. Rock samples with water absorption values of <10, 10-15 and >15% behave as highly durable, intermediate and less durable materials respectively. Rocks with LOI values of greater than 5% by weight behave as less durable rock materials, at least for the strata encompassed by the present study. The water absorption and LOI values were also used to develop a predictive model of slake durability characteristics for the different rock materials in the Patonga Claystone, providing a relatively simple basis for predicting longer-term stability in a range of geotechnical studies.
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Simas, Margarete Wagner. "Origem vulcânica para o tonstein da jazida do Faxinal (RS) : estudos mineralógicos, petrográficos e de palinofácies." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2008. http://hdl.handle.net/10183/12534.

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Análises mineralógicas, petrográficas e de palinofácies são registradas em um leito de tonstein associado a camadas de carvão na Jazida do Faxinal, Rio Grande do Sul, Brasil. A integração dos dados revestiu-se de grande importância para atribuir uma origem vulcânica para este argilito caolinítico. O tonstein é uma rocha quase monominerálica, composta predominantemente por caolinita antigênica. Dispersos na massa caolinítica ocorrem os minerais piroclásticos: paramorfos de quartzo-ß bipiramidais euédricos, “splinters” de quartzo transparente, zircão idiomórfico, apatita euédrica, alanita e pseudomorfos de sanidina, os quais são considerados como uma suíte restrita de minerais vulcânicos de tonsteins distais que preservaram durante a diagênese. Os minerais primários e suas feições texturais, bem como as relações de campo, indicam uma origem vulcânica de queda para essa camada. O estudo de palinofácies, inédito para este tipo de rocha, evidenciou uma composição diferenciada da matéria orgânica estruturada ao longo do perfil do tonstein. Análises estatísticas do querogênio de diferentes níveis da camada de tonstein indicaram altas percentagens de fitoclastos (xilema e epiderme) associados à menor representatividade de palinomorfos. Análises microestratigráficas destes níveis demonstraram que a saturação e a precipitação dos palinomorfos foram altamente influenciadas pelo intenso processo de queda de cinzas. O nível basal caracteriza-se por densos aglomerados de esporos e polens, enquanto o topo é marcado pela preservação de fragmentos de colônias de algas Botryococcus evidenciando uma deposição subaquosa desta camada. Alguns fragmentos de epiderme (cutículas) evidenciam, por sua coloração, acentuada alteração termal. Esses dados possibilitaram vincular as peculiaridades do mecanismo de deposição e preservação da matéria orgânica com o processo de formação do tonstein relacionado à rápida precipitação de cinzas vulcânicas. O tonstein intercalado em camada de carvão indica um episódio de sedimentação de tefra durante a deposição da seqüência portadora de carvão no Permiano Inferior no sul da Bacia do Paraná.
Mineralogical and palynofacies analyses are reported from a tonstein layer interbedded with coal seams in the Faxinal coalfield, Rio Grande do Sul, Brazil. Integration of data has far reaching significance for attributing a volcanic origin for this kaolinitic claystone bed. The tonstein is almost monomineralic rock, composed mainly by authigenic kaolinite. Scattered in the kaolinitic mass primary pyroclastic minerals occur: euhedral beta-quartz paramorphs and waterclear quartz splinters, idiomorphic zircons, apatite, allanite and sanidine pseudomorphs; considered as a restricted suite of silicic volcanic minerals of the distal tonsteins which preserved during diagenesis. The primary minerals and their textural features, as well as the field relations, indicate a volcanic air-fall origin. Analyses of the kerogens from different levels of tonstein layer indicate high percentages of phytoclasts combined with very low palynomorph percentages. Microstratigraphic analyses of the tonstein profile demonstrated that saturation and precipitation of palynomorphs were highly influenced by the intense ash-fall process. The preservation of Botryococcus colonies at the top of the tonstein evidenced the subaqueous deposition of this bed. The brown color of several cuticle fragments and tracheids was linked to thermal alteration. The tonstein interbedded in a coal seam indicates an episode of tephra sedimentation during the deposition of the coal-bearing sequence of the Lower Permian in the southern Paraná Basin.
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Xu, Wenjie. "Investigation of Gas Migration in saturated Argillaceous Rock." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-132511.

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Gas migration in saturated argillaceous rock is studied in this work. Dependent on the pressure level the gas transport process is controlled by different mechanisms. Gas injection tests have been carried to investigate the gas transport process in low permeable argillaceous rock. We focus on the Opalinus Clay, which has been widely researched and is important for searching possible host rock of the radioactive waste disposal. Gas injection tests at different scales (laboratory, in-situ borehole and in-situ tunnel test) are intensively investigated in this work. The measurements of the tests are analysed and interpreted with numerical modelling method. A coupled multi-phase flow and mechanical model has been developed and implemented in the scientific computed codes OpenGeoSys (OGS). In the applied numerical model the relationship between capillary pressure and water saturation degree is described with van Genuchten model. The Darcy’s law is used for the phase flux, and the relative permeability of both water and gas phase is considered. The deformation process is calculated with elastic perfect-plastic model. The anisotropic hydraulic and mechanic behaviours of the Opalinus Clay are involved in the numerical model. The hydraulic anisotropy is controlled by the permeability tensor. The elastic deformation process is modelled by generalized Hooke’s law. The plastic behaviour is calculated with return mapping algorithm, and the anisotropy is considered with a so called microstructure tensor method. The permeability change during the gas injection is described using pressure dependent or deformation dependent approach. With considering the permeability evolution the measured data can be in the numerical model quantitatively represented, and test observations can be interpreted. Under laboratory condition it can be determined that the specimen permeability is reduced during compression. The significant permeability increase takes places when the gas injection pressure higher than the confining pressure. By the in-situ tests damage zone can be generated due to the drilling of boreholes and tunnel. The highly permeable areas dominate the hydraulic process. Fluid flows through the damaged zone into the not sealed section, e.g. the seismic observation boreholes by the in-situ borehole tests and the section out of the megapacker by the in-situ tunnel tests. In this work, the two phase flow controlled and pathway dilatancy controlled gas migration mechanisms are successfully simulated. The developed numerical model can be used to investigate the gas injection tests at different scales and conditions.
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Pickert, Enrico, and Tatjana Bräutigam. "Steckbrief Podsol aus Sandstein: Böden der Berg- und Hügelländer." Sächsisches Landesamt für Umwelt, Landwirtschaft und Geologie (LfULG), 2017. https://slub.qucosa.de/id/qucosa%3A74420.

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Der Steckbrief informiert über den ˈPodsol aus Sandsteinˈ. Der ˈPodsol aus Sandsteinˈ zählt zur Bodenklasse der ˈBöden der Berg- und Hügelländerˈ. Er stellt eine typische Bodenform in Sachsen dar. Er ist ein nährstoffarmer Boden, der sich typisch in der ˈBodenregion der Berg- und Hügelländer mit hohem Anteil an nichtmetamorphen Sand-, Schluff-, Ton- und Mergelsteinenˈ entwickelt hat. Podsole sind nährstoffarme Böden, die sich durch Verlagerungsprozesse und teilweise Wiederausfällung von Fe, Al, und weiteren Elementen zusammen mit organischen Stoffen auszeichnen und dadurch im oberen Profilteil extrem verarmt sind. Der Steckbrief richtet sich an alle Interessierte, die sich über die Entstehung Verbreitung und das Erscheinungsbild typischer, repräsentativer Böden Sachsens informieren möchten. Redaktionsschluss: 01.03.2017
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Bönsch, Carola [Verfasser]. "Auswirkungen der Saugspannung auf physikalische und mechanische Eigenschaften von überkonsolidierten Tonen und Tonsteinen im Verwitterungsprozess / von Carola Bönsch." 2006. http://d-nb.info/983152071/34.

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Xu, Wenjie. "Investigation of Gas Migration in saturated Argillaceous Rock." Doctoral thesis, 2013. https://tud.qucosa.de/id/qucosa%3A27459.

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Gas migration in saturated argillaceous rock is studied in this work. Dependent on the pressure level the gas transport process is controlled by different mechanisms. Gas injection tests have been carried to investigate the gas transport process in low permeable argillaceous rock. We focus on the Opalinus Clay, which has been widely researched and is important for searching possible host rock of the radioactive waste disposal. Gas injection tests at different scales (laboratory, in-situ borehole and in-situ tunnel test) are intensively investigated in this work. The measurements of the tests are analysed and interpreted with numerical modelling method. A coupled multi-phase flow and mechanical model has been developed and implemented in the scientific computed codes OpenGeoSys (OGS). In the applied numerical model the relationship between capillary pressure and water saturation degree is described with van Genuchten model. The Darcy’s law is used for the phase flux, and the relative permeability of both water and gas phase is considered. The deformation process is calculated with elastic perfect-plastic model. The anisotropic hydraulic and mechanic behaviours of the Opalinus Clay are involved in the numerical model. The hydraulic anisotropy is controlled by the permeability tensor. The elastic deformation process is modelled by generalized Hooke’s law. The plastic behaviour is calculated with return mapping algorithm, and the anisotropy is considered with a so called microstructure tensor method. The permeability change during the gas injection is described using pressure dependent or deformation dependent approach. With considering the permeability evolution the measured data can be in the numerical model quantitatively represented, and test observations can be interpreted. Under laboratory condition it can be determined that the specimen permeability is reduced during compression. The significant permeability increase takes places when the gas injection pressure higher than the confining pressure. By the in-situ tests damage zone can be generated due to the drilling of boreholes and tunnel. The highly permeable areas dominate the hydraulic process. Fluid flows through the damaged zone into the not sealed section, e.g. the seismic observation boreholes by the in-situ borehole tests and the section out of the megapacker by the in-situ tunnel tests. In this work, the two phase flow controlled and pathway dilatancy controlled gas migration mechanisms are successfully simulated. The developed numerical model can be used to investigate the gas injection tests at different scales and conditions.
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7

Geiger, Markus. "The Geology of the southern Warmbad Basin Margin - Tephrostratigraphy, Age, Fossil Record and Sedimentary Environment of Carboniferous-Permian Glacigenic Deposits of the Dwyka Group, Zwartbas, southern Namibia." Master's thesis, 2000. https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-46251.

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At Zwartbas, about 10 km west of Vioolsdrif, southern Namibia, the Dwyka succession is composed of tillites and distal fossiliferous dropstone-bearing glacio-marine shales. The completely exposed Dwyka succession is interbedded with thin bentonites, altered distal pyroclastic deposits, which were derived from the magmatic arc at the southern rim of Gondwana. Dropstone-bearing and dropstonefree sequences intercalate with four diamictites, of which the two lowest were certainly recognised as tillites. Four events of deglaciation were proven at Zwartbas and thus consist with correlative deposits in southern Africa. Numerous fossilised fishes, trace fossils, and plant fragments appear frequently within the lower half of the Dwyka succession whereas trace fossils were principally found in the complete succession. Although the environmental determination is quite problematic, the fossil assemblage rather implies proximal, shallow water conditions with temporary restricted oxygenation. The hinterland was covered with considerable vegetation, which points to a moderate climate. Water salinity determinations based on shale geochemistry rectify contrary palaeontological results and point to rather brackish or non-marine conditions in comparison to present-day salinites. Geochemical analyses of the bentonites relate the pyroclastic deposits with acid to intermediate source magmas, as they are known from the magmatic arc in present-day Patagonia. Tectono-magmatic comparisons furthermore emphasise a syn-collision or volcanic-arc situation of the magma source. However, significant cyclicity in the production of the pyroclastic deposits was not observed. Radiometric age determinations of two tuff beds clearly date the onset of glacial activity into the Late Carboniferous.
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Geiger, Markus. "An Explanation of the Geological Map 1:10000 of the Namibian borderland along the Orange River at Zwartbas - Warmbad District - Karas Region - Namibia." Master's thesis, 1999. https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-46269.

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The locality of Zwartbas is situated at the border of Namibia and South Africa about 15 km west of Noordoewer. The mapped area is confined by the Tandjieskoppe Mountains in the north and the Orange River in the south. Outcropping rocks are predominantly sediments of the Nama Group and of the Karoo Supergroup. During the compilation of this paper doubts arose about the correct classification of the Nama rocks as it is found in literature. Since no certain clues were found to revise the classification of the Nama rocks, the original classification remains still valid. Thus the Kuibis and Schwarzrand Subgroup constitute the Nama succession and date it to Vendian age. A glacial unconformity represents a hiatus for about 260 Ma. This is covered by sediments of the Karoo Supergroup. Late Carboniferous and early Permian glacial deposits of diamictitic shale of the Dwyka and shales of the Ecca Group overlie the unconformity. The shales of the Dwyka Group contain fossiliferous units and volcanic ash-layers. A sill of the Jurassic Tandjiesberg Dolerite Complex (also Karoo Supergroup) intruded rocks at the Dwyka-Ecca-boundary. Finally fluvial and aeolian deposits and calcretes of the Cretaceous to Tertiary Kalahari Group and recent depositionary events cover the older rocks occasionally
Die Lokalität Zwartbas liegt an der namibisch-südafrikanischen Grenze, etwa 15 km westlich von Noordoewer. Das Kartiergebiet wird durch die Tandjiesberge im Norden und den Oranje Fluß im Süden begrenzt. Die anstehenden Gesteine bestehen hauptsächlich aus Sedimenten der Nama Gruppe und der Karoo Supergruppe. Während der Erarbeitung dieser Abhandlung entstanden Zweifel an der Klassifikation der Nama Gesteine, so wie sie in der Literatur zu finden ist. Da keine sicheren Hinweise zur Revision der Klassifikation der Nama Gesteine gefunden wurden, bleibt die ursprünglich Klassifikation jedoch gültig. Die Kuibis und Schwarzrand Untergruppe bilden also die Nama Abfolge und datieren sie ins Vendian. Eine glaziale Diskontinuität repräsentiert einen Hiatus von etwa 260 Mio Jahren. Sie wird überlagert von Sedimenten der Karoo Supergruppe. Spät-karbone und früh-permische glaziale Ablagerungen von diamiktitischen Tonsteinen der Dwyka Gruppe und Tonsteine der Ecca Gruppe liegen über dieser Diskontinuität. Die Sedimente der Dwyka Gruppe sind fossilführend und enthalten Tufflagen. Ein Sill des jurassischen Tandjiesberg Dolerit Komplex (auch Karoo Supergruppe) intrudierte in die Gesteine an der Dwyka-Ecca Grenze. Schließlich bedecken lokal fluviatile und äolische Ablagerungen und Kalkkrusten der kretazischen und tertiären Kalahari Gruppe und jüngerer Ablagerungsereignisse die älteren Gesteine
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Novotný, Tomáš. "Geneze a paleogeografický význam proplástků hlavní hnědouhelné sloje mostecké pánve." Master's thesis, 2013. http://www.nusl.cz/ntk/nusl-322676.

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This diploma thesis presents first systematic geochemical a petrographical research of clastic bands in the lower-miocene Main Coal of the Most Basin. The main target of the thesis is evaluation of proxy analyses (EDXRF) of clastic bands and ash yield from coal. This method allows for identification of paleogeographic information about provenance of clastics derived from two different sources. The first source area represents weathered Tertiary volcanoclastics and the second is derived from crystalline basement in southwest part of the Bohemian Massif. Different geochemical signal of these two source areas detected in clastic bands allowed to constrain the switching of provenance into the lower part of the middle bench of the Main Coal in the Bílina open-cast mine whereas in the Doly Nástup-Tušimice mine this change occurs below the Main Coal. This result corresponds with idea of gradual changing of provenance across basin. Anomalous geochemical composition characterised by apparently increased content of Sr-Ba-P-Ca elements in one of clastic bands in the lower part of the Main Coal exposed in the Doly Nástup-Tušimice open-cast mine is related to presence of phosphate group minerals florencite and woodhouseite minerals as confirmed by RTG diffraction. This assemblage suggests possible admixture of...
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Klinkenberg, Martina. "Einfluss des Mikrogefüges auf ausgewählte petrophysikalische Eigenschaften von Tongesteinen und Bentoniten." Doctoral thesis, 2008. http://hdl.handle.net/11858/00-1735-0000-0006-B270-9.

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Books on the topic "Tonsteins"

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Bohor, Bruce Forbes. Tonsteins: Altered volcanic ash layers in coal-bearing sequences. Boulder, Colo: Geological Society of America, 1993.

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Łapot, Włodzimierz. Zróżnicowanie petrograficzne tonsteinów Górnośląskiego Zagłębia Węglowego. Katowice: Uniwersytet Śląski, 1992.

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Rauh, Florian. Untersuchungen zum Quellverhalten von Anhydrit und Tongesteinen im Tunnelbau. München: Pfeil, 2009.

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285 : Tonsteins: Altered Volcanic-Ash Layers in Coal-Bearing Sequences. Geological Society of America, 1993. http://dx.doi.org/10.1130/spe285.

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Book chapters on the topic "Tonsteins"

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Keller, P., and K. Mack. "Bestimmung eines Parameters für den Verwitterungsgrad von Tonsteinen." In Ingenieurgeologische Probleme im Grenzbereich zwischen Locker- und Festgesteinen, 130–42. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-70452-9_9.

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Hesse, K. H., and H. D. Schumacher. "Wechselwirkungen von Tonen Bzw. Tonsteinen mit Ausgesuchten Sickerwässern." In Altlastensanierung ’90, 499–500. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4899-3806-0_93.

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Gronemeier, K., G. Mattheß, W. Brunhof, W. Ohse, A. Pekdeger, D. Schenk, and A. Winkler. "Verwitterungsabhängige geochemische, mikrostrukturelle und geomechanische Eigenschaften halbfester Tonsteine der oberen Röt-Folge (Rhön)." In Ingenieurgeologische Probleme im Grenzbereich zwischen Locker- und Festgesteinen, 143–55. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-70452-9_10.

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Bohor, Bruce F., and Don M. Triplehorn. "Tonsteins: Altered Volcanic-Ash Layers in Coal-Bearing Sequences." In 285 : Tonsteins: Altered Volcanic-Ash Layers in Coal-Bearing Sequences, 1–44. Geological Society of America, 1993. http://dx.doi.org/10.1130/spe285-p1.

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5

"tonstein." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 1408. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_201765.

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"1.2 Tonstein." In Fassaden Atlas, 82–99. Birkhäuser, 2004. http://dx.doi.org/10.11129/detail.9783034614573.82.

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"2. Tonstein." In Fassaden Atlas, 86–105. DETAIL, 2016. http://dx.doi.org/10.11129/9783955533298-007.

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"Tonstein m." In Wörterbuch GeoTechnik/Dictionary Geotechnical Engineering, 1137. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-33335-4_201345.

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"Tonstein m." In Wörterbuch GeoTechnik/Dictionary Geotechnical Engineering, 1137. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-33335-4_201346.

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"graupen tonstein." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 624–25. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_71853.

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Conference papers on the topic "Tonsteins"

1

Adamczyk, Zdzislaw. "MINERAL COMPOSITION OF THE RESPIRABLE DUST FORMED IN THE EXPLOITATION OF A COAL SEAM WITH TONSTEIN OVERGROWTH." In 17th International Multidisciplinary Scientific GeoConference SGEM2017. Stef92 Technology, 2017. http://dx.doi.org/10.5593/sgem2017/11/s01.042.

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Adamczyk, Zdzislaw. "IRON SULPHIDE FROM TONSTEIN FROM 713 COAL SEAM OF JEJKOWICE TECTONIC TROUGH UPPER SILESIAN COAL BASIN (POLAND)." In 17th International Multidisciplinary Scientific GeoConference SGEM2017. Stef92 Technology, 2017. http://dx.doi.org/10.5593/sgem2017/11/s01.058.

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Thompson, Leah N., Robert B. Finkelman, David H. French, and Sergey I. Arbuzov. "MICROANALYSIS OF A TONSTEIN UNCOVERS A MINERALOGICAL MYSTERY: THE FIRST REPORTED OCCURRENCE OF FERROAN MAGNESITE IN COAL." In 54th Annual GSA South-Central Section Meeting 2020. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020sc-343561.

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You might also be interested in the extended bibliographies on the topic 'Tonsteins' for particular source types:
Journal articles
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