Diverse rock types from Jamaica : perspectives from petrography and whole-rock chemistry : initial report
Novák, Jiří Karel; Bosák, Pavel
2008 - English Keywords: manufactured sand; greywacke; calcarenite; Wagwater belt, Jamaica Available at various institutes of the ASCR Diverse rock types from Jamaica : perspectives from petrography and whole-rock chemistry : initial report

Novák, Jiří Karel; Bosák, Pavel
Geologický ústav, 2008

The principle of frozen evolution and its manifestation in the fossil record: the brachiopod genus Aegiromena Havlíček, 1961 (Upper Ordovician, Czech Republic)
Mikuláš, Radek
2008 - English The presented study is in a good agreement with the idea of a frozen evolution of the genus Aegiromena, or, more precisely, it illustrates a gradual disappearance of the ability to respond to the environmental change by a selectively advantageous change in its morphology. After its freezing, further evolution of Aegiromena brings very little news; only subtle changes in the size of adults, subtle and variable changes in the width/length ratio, and a changing variability of muscular imprints can be noted. Sled paleopopulací ramenonožců rodu Aegiromena ve svrchním ordoviku Barrandienu vykazuje charakteristické prvky, které lze dobře objasnit aplikací koncepce tzv. zamrzlé evoluce. Počáteční rychlé změny morfologie vyvolané změnami substrátu dna v mělkém moři jsou vystřídány stabilitou morfologie a neschopností účelně reagovat na změny konzistence substrátu (objevují se už pouze drobné změny v konfiguraci svalových vtiskům nepatrné změny tvaru schránky a fluktuace velikosti jedinců); rod posléze vymírá ještě před nástupem drastických změn přírodního prostředí na hranici ordovik-silur. Keywords: frozen evolution; brachiopods; Ordovician Available at various institutes of the ASCR The principle of frozen evolution and its manifestation in the fossil record: the brachiopod genus Aegiromena Havlíček, 1961 (Upper Ordovician, Czech Republic)

The presented study is in a good agreement with the idea of a frozen evolution of the genus Aegiromena, or, more precisely, it illustrates a gradual disappearance of the ability to respond to the ...

Mikuláš, Radek
Geologický ústav, 2008

Faunas and palaeoenvironments of the Late Palaeozoic : special publication to 5th Symposium on Permo-carboniferous Faunas and workshop Interpretation of Marine and Freshwater Environments in Carboniferous and Permian Deposits
Štamberg, S.; Zajíc, Jaroslav
2008 - English The special volume contains the list of participants, the meeting programme, abstracts, and the excursion guide (Krkonoše Piedmont Basin and Boskovice Graben). Sborník obsahuje seznam účastníků, program sympozia, abstrakty a exkurzní průvodce (podkrkonošská pánev a boskovická brázda). Keywords: Late Palaeozoic; biota; palaeoenvironment Available at various institutes of the ASCR Faunas and palaeoenvironments of the Late Palaeozoic : special publication to 5th Symposium on Permo-carboniferous Faunas and workshop Interpretation of Marine and Freshwater Environments in Carboniferous and Permian Deposits

The special volume contains the list of participants, the meeting programme, abstracts, and the excursion guide (Krkonoše Piedmont Basin and Boskovice Graben)....

Štamberg, S.; Zajíc, Jaroslav
Geologický ústav, 2008

Workshop on Graptolite volume of Treatise on Invertebrate Paleontology and IPA Graptolite working group meeting : abstract book and Excursion guide
Štorch, Petr; Kraft, P.
2008 - English Keywords: invertebrate palentology; Treatise; graptolites Available at various institutes of the ASCR Workshop on Graptolite volume of Treatise on Invertebrate Paleontology and IPA Graptolite working group meeting : abstract book and Excursion guide

Štorch, Petr; Kraft, P.
Geologický ústav, 2008

Volcanic and pyroclastic rocks from the Bito and Ramble area, Jamaica: Petrography and whole-rock chemistry : progress report no. 1
Novák, Jiří Karel; Pavková, Jaroslava; Bosák, Pavel
2008 - English Keywords: calc-alcaline volcanic rocks; spilitic tuffs hydroclastite; skidding resistance; pozzolanic activity; Jamaica Available at various institutes of the ASCR Volcanic and pyroclastic rocks from the Bito and Ramble area, Jamaica: Petrography and whole-rock chemistry : progress report no. 1

Novák, Jiří Karel; Pavková, Jaroslava; Bosák, Pavel
Geologický ústav, 2008

Feasibility of karst hydrogeological research in the Loferer Schacht area, Loferer Steinberge, Austria
Žák, Karel
2008 - English The main purpose of this report is to make a feasibility study for a karst hydrogeological project in the Loferer Schacht cave and adjacent area, Loferer Steinberge, Austria. From a hydrogeological point of view, the known part of this cave system (vertical cave extent +9.8/-796.7 m, mapped length 7,800 m) occurs within the unsaturated (vadose) zone. Based on a pilot field survey, evaluation of the geological structure, and a preliminary study of groundwater residence time using oxygen stable isotopes it can be concluded that the area is not suitable for a detailed project. The most principal obstacles for such a study are: i. the character of the dis-charge sites located in talus accumulation, which do not allow precise measurement of the discharge; ii. the long storage of precipitation in the recharge area as perennial snowfields and ice plugs in swallow holes; and iii. the problematic use of artificial water tracers because the springs are used as drinking water. Keywords: Loferer Schacht; Loferer Steinberge; karst hydrogeology; Norther Calcareous Alps; oxygen isotopes Available at various institutes of the ASCR Feasibility of karst hydrogeological research in the Loferer Schacht area, Loferer Steinberge, Austria

The main purpose of this report is to make a feasibility study for a karst hydrogeological project in the Loferer Schacht cave and adjacent area, Loferer Steinberge, Austria. From a hydrogeological ...

Žák, Karel
Geologický ústav, 2008

Palaeomagnetic research of selected cave sediments in Korea : final report
Bosák, Pavel; Pruner, Petr; Woo, K. S.
2008 - English Keywords: caves; cave sediment; palaeomagnetism Available at various institutes of the ASCR Palaeomagnetic research of selected cave sediments in Korea : final report

Bosák, Pavel; Pruner, Petr; Woo, K. S.
Geologický ústav, 2008

High-grade limestones from the Santa Cruz Mts. : progress report 2 : pure calcarenite and calcirudite from the Santa Cruz Mts., Jamaica as raw cementitious materials
Novák, Jiří Karel; Bosák, Pavel; Pavková, Jaroslava
2008 - English Keywords: calcarenite; calcirudite; texture; white cement; Newport formation (Jamaica) Available at various institutes of the ASCR High-grade limestones from the Santa Cruz Mts. : progress report 2 : pure calcarenite and calcirudite from the Santa Cruz Mts., Jamaica as raw cementitious materials

Novák, Jiří Karel; Bosák, Pavel; Pavková, Jaroslava
Geologický ústav, 2008

Sign and arrival time determination of Acoustic emission signals by means of high-order statistic approach
Lokajíček, Tomáš; Klíma, Karel
2008 - English Application of high order statistic to determine arrival time and sign of ultrasonic and acoustic emission signals. Využití vyšších statistických momentů pro stanovení času příchodu a znaménka prvního nasazení ultrazvukových signálů a signálů akustické emise. Keywords: high order statistic; signal sign determination; arrival time determination Available at various institutes of the ASCR Sign and arrival time determination of Acoustic emission signals by means of high-order statistic approach

Application of high order statistic to determine arrival time and sign of ultrasonic and acoustic emission signals....

Lokajíček, Tomáš; Klíma, Karel
Geologický ústav, 2008

Proceedings XXXI. Polish-Czech-Slovakian Symposium on Mining and Environmental Geophysics
Rudajev, Vladimír; Živor, Roman; Svítilová, Jaroslava
2008 - English Proceedings include papers devoted to geophysical methods application for solution of following problems: mining tremors, structure and properties of rock massif, geotechnical questions and laboratory investigation of rock fracturing. Sborník obsahuje přednášky věnované využití geofyzikálních metod při řešení problematiky důlních otřesů, struktury a vlastností horninového masivu, při řešení geotechnických problémů a při laboratorním výzkumu porušování hornin. Keywords: geophysics; mining; environment Available at various institutes of the ASCR Proceedings XXXI. Polish-Czech-Slovakian Symposium on Mining and Environmental Geophysics

Proceedings include papers devoted to geophysical methods application for solution of following problems: mining tremors, structure and properties of rock massif, geotechnical questions and laboratory ...

Rudajev, Vladimír; Živor, Roman; Svítilová, Jaroslava
Geologický ústav, 2008