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Trondhjemites, Dacites, and Related Rocks
About This Book
Developments in Petrology, 6: Trondhjemites, Dacites, and Related Rocks focuses on the geology, geochemistry, and petrology of several kinds of trondhjemites, dacites, and genetically related rocks. The selection first elaborates on the definition, environment, and hypotheses of origin of trondhjemite; a review of the mineralogy and chemistry of tertiary-recent dacitic, latitic, rhyolitic, and related salic volcanic rocks; and some trace elements in trondhjemites and their implications to magma genesis and paleotectonic setting. Discussions focus on tectonic environments and trace element patterns, selection and reliability of trace elements, interrelationships between mineralogy and chemistry, and regional variations of dacitic and rhyolitic magmas. The publication then tackles strontium isotope geochemistry of late Archean to late Cretaceous tonalites and trondhjemites; Archean gray gneisses and the origin of the continental crust in West Greenland; and metamorphic development of early Archean tonalitic and trondhjemitic gneisses in Saglek Area, Labrador. The book examines the petrology, geochemistry, and origin of the Sparta quartz dioritetrondhjemite complex; reconnaissance geochemistry of Devonian island-arc volcanic and intrusive rocks in West Shasta District, California; and origin of the Twillingate trondhjemite in North-Central Newfoundland. The selection is highly recommended for geologists and geochemists wanting to explore trondhjemites, dacites, and genetically related rocks.
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Table of contents
- Front Cover
- Trondhjemites, Dacites, and Related Rocks
- Copyright Page
- Table of Contents
- Preface
- Contributors
- CHAPTER 1. TRONDHJEMITE: DEFINITION, ENVIRONMENT AND HYPOTHESES OF ORIGIN
- CHAPTER 2. A REVIEW OF THE MINERALOGY AND CHEMISTRY OF TERTIARY-RECENT DACITIC, LATITIC, RHYOLITIC, AND RELATED SALIC VOLCANIC ROCKS
- CHAPTER 3. SOME TRACE ELEMENTS IN TRONDHJEMITES - THEIR IMPLICATIONS TO MAGMA GENESIS AND PALEOTECTONIC SETTING
- CHAPTER 4. STRONTIUM ISOTOPE GEOCHEMISTRY OF LATE ARCHEAN TO LATE CRETACEOUS TONALITES AND TRONDHJEMITES
- CHAPTER 5. OCEANIC PLAGIOGRANITE REVISITED
- CHAPTER 6. ARCHEAN GRAY GNEISSES AND THE ORIGIN OF THE CONTINENTAL CRUST: EVIDENCE FROM THE GODTHAB REGION, WEST GREENLAND
- CHAPTER 7. METAMORPHIC DEVELOPMENT OF EARLY ARCHEAN TONALITIC AND TRONDHJEMITIC GNEISSES: SAGLEK AREA, LABRADOR
- CHAPTER 8. GEOCHEMISTRY OF ARCHEAN TRONDHJEMITIC AND TONALITIC GNEISSES FROM SCOTLAND AND EAST GREENLAND
- CHAPTER 9. THE ROLE OF TONALITIC AND TRONDHJEMITIC ROCKS IN THE CRUSTAL DEVELOPMENT OF SWAZILAND AND THE EASTERN TRANSVAAL, SOUTH AFRICA
- CHAPTER 10. PETROCHEMISTRY AND TECTONIC SETTING OF PLUTONIC ROCKS OF THE SUPERIOR PROVINCE IN MANITOBA
- CHAPTER 11. THE OXYGEN-ISOTOPE GEOCHEMISTRY OF ARCHEAN GRANITOIDS
- CHAPTER 12. ARCHEAN TRONDHJEMITES OF THE SOUTHWESTERN BIG HORN MOUNTAINS, WYOMING: A PRELIMINARY REPORT
- CHAPTER 13. FOUR LOW-K SILICEOUS ROCKS OF THE WESTERN USA
- CHAPTER 14. PETROGENESIS OF HIGH PRESSURE TRONDHJEMITIC LAYERS IN ECLOGITES AND AMPHIBOLITES FROM SOUTHERN MASSIF CENTRAL, FRANCE
- CHAPTER 15. TWO CONTRASTING TRONDHJEMITE ASSOCIATIONS FROM TRANSPORTED OPHIOLITES IN WESTERN NEWFOUNDLAND: INITIAL REPORT
- CHAPTER 16. ORIGIN OF THE TWILLINGATE TRONDHJEMITE, NORTH-CENTRAL NEWFOUNDLAND: PARTIAL MELTING IN THE ROOTS OF AN ISLAND ARC
- CHAPTER 17. GEOCHEMISTRY OF THE TYPE TRONDHJEMITE AND THREE ASSOCIATED ROCKS, NORWAY
- CHAPTER 18. RECONNAISSANCE GEOCHEMISTRY OF DEVONIAN ISLAND-ARC VOLCANIC AND INTRUSIVE ROCKS, WEST SHASTA DISTRICT, CALIFORNIA
- CHAPTER 19. PETROLOGY, GEOCHEMISTRY AND ORIGIN OF THE SPARTA QUARTZ DIORITETRONDHJEMITE COMPLEX, NORTHEASTERN OREGON
- CHAPTER 20. L0W-K2O DACITE FROM THE TONGA-KERMADEC ISLAND ARC: PETROGRAPHY, CHEMISTRY, AND PETROGENESIS
- CHAPTER 21. DACITE OF THE LESSER ANTILLES
- CHAPTER 22. MIOCENE LOW-K DACITES AND TRONDHJEMITES OF FIJI
- Subject Index