Author: Jean Pierre BardPublisher: Elsevier Masson
ISBN:
Category : Igneous rocks
Languages : fr
Pages : 222
Book Description
Microtextures des roches magmatiques et métamorphiques
Author: Jean Pierre BardPublisher: Elsevier Masson
ISBN:
Category : Igneous rocks
Languages : fr
Pages : 222
Book Description
Classic references for earth-science reading
Author: Léon DelbosPublisher: Editions BRGM
ISBN:
Category : Earth sciences
Languages : en
Pages : 350
Book Description
Les textures des roches cristallines
Author: Michel DemangePublisher: Presses des MINES
ISBN: 2911256638
Category : Crystalline rocks
Languages : fr
Pages : 22
Book Description
La texture d'une roche concerne les proportions, tailles, formes, arrangements, rapports, etc. entre les minéraux de cette roche à l'échelle de l'échantillon, de la lame mince ou même à une échelle plus fine. L'étude des textures des roches est particulièrement importante pour la reconstitution de l'histoire et l'évolution d'une roche, puisque l'on peut observer en action les processus qui l'ont formée. C'est aussi un préalable indispensable à des études plus fines (et plus coûteuses) de minéralogie et géochimie. S'il est relativement facile d'apprendre à reconnaître les minéraux sous le microscope, savoir analyser une texture demande une certaine expérience. Le but de ce guide est d'aider le lecteur à acquérir cette expérience en attirant son attention sur certaines observations et les problèmes significatifs que ces observations soulèvent. L'ouvrage comprend deux parties : • un disque compact qui présente un atlas, composé de trois fichiers (roches magmatiques, textures de déformation et roches métamorphiques, soit un total de 558 fiches) de différentes textures significatives ; • un livre qui présente les bases de l'interprétation de ces textures. Il s'agit ici non point de fournir des interprétations toutes faites mais d'indiquer les éléments de cette discussion.
Framboids
Author: Zbigniew SawłowiczPublisher:
ISBN:
Category : Ore deposits
Languages : en
Pages : 84
Book Description
Geoscience Documentation
Author: Periodico di mineralogia
Author: Bibliography and Index of Geology
Author: Petrochronology
Author: Matthew J. KohnPublisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110561891
Category : Science
Languages : en
Pages : 596
Book Description
Petrochronology is a rapidly emerging branch of Earth science that links time (ages or rates) with specific rock-forming processes and their physical conditions. It is founded in petrology and geochemistry, which define a petrogenetic context or delimit a specific process, to which chronometric data are then linked. This combination informs Earth’s petrogenetic processes better than petrology or geochronology alone. This volume and the accompanying short courses address three broad categories of inquiry. Conceptual approaches chapters include petrologic modeling of multi-component chemical and mineralogic systems, and development of methods that include diffusive alteration of mineral chemistry. Methods chapters address four main analytical techniques, specifically EPMA, LA-ICP-MS, SIMS and TIMS. Mineral-specific chapters explore applications to a wide range of minerals, including zircon (metamorphic, igneous, and detrital/Hadean), baddeleyite, REE minerals (monazite, allanite, xenotime and apatite), titanite, rutile, garnet, and major igneous minerals (olivine, plagioclase and pyroxenes). These applications mainly focus on metamorphic, igneous, or tectonic processes, but additionally elucidate fundamental transdisciplinary progress in addressing mechanisms of crystal growth, the chemical consequences of mineral growth kinetics, and how chemical transport and deformation affect chemically complex mineral composites. Most chapters further recommend areas of future research.
Metamorphic Rocks and Their Geodynamic Significance
Author: Jacques KornprobstPublisher: Springer Science & Business Media
ISBN: 1402008937
Category : Medical
Languages : en
Pages : 214
Book Description
This book describes metamorphic rock formation mechanisms in a simplified form. It presents the geometrical rules which control mineral assemblages as a function of rock composition, and provides the basis of a thermodynamical approach used for equilibrium slope calculations as well as for the evaluation of P, T stability fields of mineral associations. On the basis of several examples from the literature, the author emphasizes the relations between different metamorphic gradients and different geodynamic situations. Associated P-T-t paths are examined from several points of view including the respective roles of heat conduction and convection. Audience: This textbook will be useful to undergraduate students in geology, but also to research students and scientists needing to rapidly update their knowledge of metamorphism. It is also accessible to anybody interested in geosciences wanting to acquire a basic knowledge of the close relationships that exist between geodynamics and metamorphic processes.
Author: