UID:
almafu_9960072243602883
Umfang:
1 online resource (323 pages)
ISBN:
1-281-75609-1
,
9786611756093
,
0-08-086904-1
Serie:
Developments in Precambrian geology ; 5
Originaltitel:
Fiziko-khimicheskie uslovii͡a obrazovanii͡a dokembriĭskikh zhelezistykh kvart͡sitov.
Anmerkung:
Translation of: Fiziko-khimicheskie usloviia obrazovaniia dokembriiskikh zhelezistykh kvartsitov.
,
Front Cover; Precambrian Banded Iron-Formations: Physicochemical Conditions of Formation; Copyright Page; Contents; Preface to the English edition; Preface to the Russian edition; Chapter 1. PRECAMBRIAN BANDED IRON FORMATIONS, THEIR DISTRIBUTION AND THEIR AGE, SPATIAL AND GENETIC RELATIONSHIPS; Introduction; Geologic poaition of banded iron-formations; Relationship of volcanic and sedimentary processes in the formation of the banded iron-formations; Composition of banded iron-formations; Present ideas on the origin of the banded iron-formations
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Chapter 2. CONDITIONS OF DEPOSITION IN THE PRECAMBRIAN; Introduction; Evolution of sedimentary processes; Geochemical history of the atmosphere and ocean in the Precambrian; Evolution of life in the Precambrian; Chapter 3. CONDITIONS OF MIGRATION AND DEPOSITION OF IRON AND SILICA; Introduction; Physicochemical data on the forms of transport and conditions of deposition of iron and silica; Geochemical data on the forms of transport and conditions of deposition of iron and silica in natural waters; Analysis of the energy of the processes of diagenesis of cherty iron sediments
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Physicochemical model of the formation of cherty iron sediments in the Precambrian; Chapter 4. PHYSICOCHEMICAL CONDITIONS OF METAMORPHISM OF THE ROCKS OF THE PRECAMBRIAN CHERTY IRON-FORMATIONS; Introduction; Main factors in rnetamorphism; Thermodynamics of metamorphism of cherty iron sediments; Stability of the rocks of the BIF under the conditions of ultrametamorphism and granitization; Chapter 5. ON THE ORIGIN OF THE ORE MINERALS OF THE PRECAMBRIAN IRON-FORMATIONS; Introduction; Variations in the oxygen isotopic composition of the ore minerals and genesis of magnetite
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Relationship of the occurrence of types of iron minerals to the content of carbon and some other elementsCONCLUSION; APPENDIX: System of consistent thermodynamic constants of minerals, sediments and ions; Wüstite; Stoichiometric wüstite; Nonstoichiometric wüstite; Magnetite; Hydromagnetite; Hematite; Goethite; Iron hydroxide; Hydrous ferrous oxide; Siderite; Fayalite; Ferrosilite; Grunerite; Minnesotaite; Greenalite; REFERENCES; SUBJECT INDEX
,
English
Weitere Ausg.:
ISBN 0-444-41934-9
Sprache:
Englisch
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