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Start Over Subject Geologie. Meteorologie. Klimatologie Date Unknown

365. Prehistory of clay mineralogy: from ancient times to Agricola

Creator:
Willi Pabst and Kořánová, Renata
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Geologie. Meteorologie. Klimatologie, Aristotelés, 384 př. Kr.-322 př. Kr, svatý, Isidor ze Sevilly, asi 560-630, Agricola, Aristotle, Theophr astus, Vitruvius, Pliny, Dioscorides, Isidore of Seville, jílové minerály, dějiny, jíly, clay minerals, history, clay, clay mineralogy, earths, ochre, ruddle, Agricola, Aristotle, Theophrastus, Vitruvius, Pliny, Dioscorides, Isidore of Seville, 7, and 551
Language:
English
Description:
The prehistory of clay mineralogy is highlighted from the beginnings in ancient Greece to the mineralogical works of Agricola, in particular his famous handbook of mineralogy, entitled De natura fossilium (1546). Starting with a few scattered hints in the works of Archaic and Classic Greek authors, including Aristotle, the first treatment of clays as a part of mineralogy is by Theophrastus. This basic tradition was further supplemented by Roman agricultural writers (Cato, Columella), Hellenistic authors (the ge ographer Strabo and the physicians Diosco rides and Galen), the Roman engineer-architect Vitruvius, and finally summarized in Pliny’s encyclopedia Naturalis historia, which has become the main source for later authors, including Agricola. It is shown to what extent Agricola’s work is just a great summary of this traditional knowledge and to what extent Agricola’s work must be considered as original. In pa rticular, Agricola’s attempt to a rational, combinatorical classification of "earths" is recalled, and aplausible explanation is given for his effort to include additional information on Central European clay depos its and argillaceous raw material occurre nces. However, it is shown that - in contrast to common belief - Agricola was not the first to include "earths" in a mineralogical system. This had been done almost one thousand years earlier by Isidore of Seville., Willi Pabst and Renata Kořánová., and Obsahuje bibliografické odkazy
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

366. Preliminary results of investigations of long lasting non-tidal signals observed by means of horizontal pendulums and long water tube tiltmeters in Low Solesian geodynamic laboratory of Polish Academy of Sciences in Ksiaz

Creator:
Kaczorowski, Marek
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Geologie. Meteorologie. Klimatologie, geodynamika, geodynamics, Earth tides, tidal and non-tidal plumb line variations, tiltmeters, 7, and 551
Language:
English
Description:
Thirty years long measurements of plumb line variations carried on with help of horizontal pendulums provided us information of non-tidal effects. Installation of the long water tube tiltmeter opens for us new possibility to answer the question, which part of non-tidal effects observed by means of pendulums was associated with geodynamic phenomena and which part was of instrumental or local origin. Two years long measurements of the long water-tube tiltmeter showed us some important similarities between non-tidal effects registered by both instruments: comparable amplitudes of non-tidal effects, time of durations of non-tidal effects as well as irregularity of occurring of non-tid al events. In spite of disjunction of time series of measurements obtained with help of horizontal pendulums and long water-tube tiltmeters we are able to conclude that the reasons of large non-tidal effects can not be simply explained by influence of temperature or pressure variations., Marek Kaczorowski., and Obsahuje bibliografické odkazy
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

367. Preliminary results of repeated measurements in local geodynamic network MORAVA

Creator:
Otakar Švábenský, Witiska, Michal, Jan Ratiborský, Radim Blažek, Lubomil Pospíšil, and Josef Weigel
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Geologie. Meteorologie. Klimatologie, tektonika, GPS sítě, geotectonics, GPS netwoks, Morava jižní (Česko), Moravia, Southern (Czechia), fault, GPS displacements, movement tendencies, 7, and 551
Language:
English
Description:
Among the first GPS geodynamics projects in Czech Republic the MORAVA network was founded in 1994 with aim to determine the positional changes at border zone between the Bohemian Massif and the Carpathians. Initial project included three successive GPS campaigns in period 1994 - 1996, but was not continued because of lack of support. It had been possible to carry out new measurements in southern part of the MORAVA network including five stations, after gap of 15 years. In the paper comparison of previous and contemporary results of epoch GPS measurements are presented, which indicate block movement tendencies at the Bohemian Massif and the Western Carpathians border, thus confirming activity of the area up to present days., Otakar Švábenský, Michal Witiska, Jan Ratiborský, Radim Blažek, Lubomil Pospíšil and Josef Weigel., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

368. Preliminary results of the analysis of the GPS time series solutions (GPSSTS) in ASG-PL permanent network

Creator:
Władysław Góral and Jasiurkowski, Daniel
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Geologie. Meteorologie. Klimatologie, analýza časových řad, time series analysis, permanent GPS stations, GPS data processing, 7, and 551
Language:
English
Description:
The permanent GPS stations are particulary important for studying various phenomena because they provide uninterrupted measurements allowing to form the time series of station coordinates. Analysis of GPS solutions time series (GPSSTS) for short meridian baselines were explored in the paper (Kryński and Zanimonskiy, 2000). In our article we intend to extend the analysis of the GPSSTS for baselines of different lengths and azimuths. GPS observation data from the ASG-PL network have been used in the research. The GPSSTS in time and frequecy domain have been analyzed. The spectrums of the GPSSTS with the using coherence function were compared. Moreover, a practical approach to correct any unmodeled effects in GPS baseline solutions that cannot be computed using classical GPS adjustment was presented., Władysław Góral and Daniel Jasiurkowski., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

369. Preliminary site movements in the GPS WEST SUDETEN network

Creator:
Vladimír Schenk, Zdeňka Schenková, Grácová, Milada, and Kottnauer, Pavel
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Geologie. Meteorologie. Klimatologie, geodynamika, geodynamics, Krkonošsko-jesenická soustava (pohoří), Česká vysočina (pohoří), Sudety mountains, Bohemian massif, epoch GPS observations, 7, and 551
Language:
English
Description:
The WEST SUDETEN geodynamic network consists of 11 sites on that five annual GPS epoch measurements in period of 2001-2005 were carried out. The 48-hour epoch data linked to 4 permanent EPN station observations created reasonable GPS data base for a preliminary evaluation of site movement velocities. General movement pattern over the network has been obtained and some regional and local movement relations among network sites were observed and discussed. The whole region under study displays three areas with relatively different movement trends. The northern area, i.e. the Krkonoše Mts. structural block, displays pronounce motion to the NW with respect to the central area that involves the Permian piedmont of the Krkonoše Mts. covered in its southern part by the Cretaceous sediments. Besides, conspicuous dextral movement along the Železné hory Mts. fault zone was detected too., Vladimír Schenk, Zdeňka Schenková, Milada Grácová and Pavel Kottnauer., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public