Janoušek, Vojtěch

Geochemical modelling of igneous processes - principles and recipes in R language : bringing the power of R to a geochemical community by V Janoušek( )

22 editions published between 2015 and 2016 in 3 languages and held by 305 WorldCat member libraries worldwide

"The aim of this book is to unlock the power of the freeware R language to advanced university students and researchers dealing with whole-rock geochemistry of (meta-) igneous rocks. The first part covers data input/output, calculation of commonly used indexes and plotting in R. The core of the book then focusses on the presentation and practical implementations of modelling techniques used for fingerprinting processes such as partial melting, fractional crystallization, binary mixing or AFC using major-, trace-element and radiogenic isotope data. The reader will be given a firm theoretical basis for forward/reverse modelling, followed by exercises dealing with typical problems likely to be encountered in real life, and their solutions using R. The concluding sections demonstrate, using practical examples, how a researcher can proceed in developing a realistic model simulating natural systems. The appendices outline the fundamentals of the R language and provide a quick introduction to the open-source R-package GCDkit for Interpretation of whole-rock geochemical data from igneous and metamorphic rocks"- - Springer

The Variscan Orogeny : extent, timescale and the formation of the European crust( Book )

7 editions published in 2014 in English and held by 150 WorldCat member libraries worldwide

This volume summarizes the state of the art of Variscan geology from Iberia to the Bohemian Massif. The European Variscan belt consists of two orogens: the older, northern and the younger, southern. The northern Variscan realm was dominated by Late Devonian-Carboniferous rifting, subduction and collisional events as defined by sedimentary records, crustal growth, recycling of continental crust and large-scale deformations. In contrast, the southern European crust was reworked by major Late Carboniferous collision followed by Permian wrenching. The Late Carboniferous-Permian orogeny overprinted the previously accreted system in the north, but with much lower intensity, resulting in magmatic recycling and extensional tectonics. These two main orogenic cycles do not reflect episodic evolution of a single orogenic system but a complete change in orientation of stress field, thermal regime, degree of reworking and recycling of European crust, reflecting a major switch in plate configurations at the Early-Late Carboniferous boundary--

Post-archean granitic rocks : petrogenetic processes and tectonic environments( Book )

6 editions published in 2020 in English and held by 65 WorldCat member libraries worldwide

Granitoids represent the dominant rock type building the upper-middle continental crust, but their origin remains hotly debated. This special publication examines the different mechanisms proposed to explain their origins and compositional variability, from batholith to mineral scale. Apart from the state-of-the-art overview, it envisions future directions toward a better understanding of granite petrogenesis. --

Dějiny Prostějova : Prostějovský okres by V Janoušek( Book )

4 editions published in 1938 in Czech and English and held by 10 WorldCat member libraries worldwide

Physica status solidi( )

2 editions published between 1966 and 2022 in English and held by 6 WorldCat member libraries worldwide

Eurogranites 2015 : Variscan plutons of the Bohemian Massif : post-conference field trip following the 26th IUGG General Assembly in Prague by V Janoušek( Book )

5 editions published in 2015 in English and held by 5 WorldCat member libraries worldwide

Melt inclusions in mafic rocks as witnesses of metasomatism in the Bohemian Massif by Alessia Borghini( )

2 editions published in 2020 in English and held by 4 WorldCat member libraries worldwide

Orogenic peridotites represent portions of upper subcontinental mantle now incorporated in mountain belts. They often contain layers, lenses and irregular bodies of pyroxenite and eclogite. The origin of this heterogeneity and the nature of these layers is still debated but it is likely to involve processes such as transient melts coming from the crust or the mantle and segregating in magma conduits, crust-mantle interaction, upwelling of the asthenosphere and metasomatism. All these processes occur in the lithospheric mantle and are often related with the subduction of crustal rocks to mantle depths. In fact, during subduction, fluids and melts are released from the slab and can interact with the overlying mantle, making the study of deep melts in this environment crucial to understand mantle heterogeneity and crust-mantle interaction. The aim of this thesis is precisely to better constrain how such processes take place studying directly the melt trapped as primary inclusions in pyroxenites and eclogites. The Bohemian Massif

Petrogenesis of granulites and related rocks : special issue( Book )

2 editions published in 2006 in English and held by 2 WorldCat member libraries worldwide

Did the circum-Rodinia subduction trigger the Neoproterozoic rifting along the Congo-Kalahari Craton margin? by Jiří Konopásek( )

1 edition published in 2017 in English and held by 2 WorldCat member libraries worldwide

Proceedings of the international conference "Genetic significance of phosphorus in fractionated granites" (IGCP Project no. 373)( Book )

1 edition published in 1998 in English and held by 2 WorldCat member libraries worldwide