Metamorphic Evolution and Integrated Terrane Analysis of the Eastern Yilgarn Craton: Rationale, Methods, Outcomes and Interpretation

Cover......Page 1
Metamorphic Evolution and Integrated Terrane Analysis of the Eastern Yilgarn Craton: Rationale, Methods, Outcomes and Interpretation......Page 2
Imprint Page......Page 3
Contents......Page 4
Abbreviations......Page 10
Executive Summary......Page 11
Introduction......Page 12
SCOPE AND HISTORY OF EYCMP......Page 14
STRUCTURAL FRAMEWORK......Page 15
GRANITOIDS......Page 31
AGE CONSTRAINTS......Page 34
PREVIOUS METAMORPHIC PARADIGM AND PRELIMINARY DATA......Page 38
MODELS FOR JUXTAPOSED THERMAL REGIMES......Page 40
METAMORPHIC GRADIENTS AS A TECTONIC TOOL......Page 44
METAMORPHIC MAPS......Page 52
METAMORPHIC DATABASE (MDB)......Page 67
PETROGRAPHY METHODOLOGY......Page 76
MINERAL CHEMISTRY METHODOLOGY......Page 78
WHOLE ROCK ANALYSES METHODOLOGY......Page 79
PT CALCULATION METHODOLOGY BY THERMOCALC V3.1......Page 80
PT CALCULATION METHODOLOGY BY CONVENTIONAL THERMOBAROMETRY......Page 83
FLUID INCLUSION PT ESTIMATES......Page 84
METHODOLOGY OF DETERMINING P-T PATHS OF METAMORPHIC EVOLUTION......Page 85
PETROGRAPHY......Page 92
MINERAL CHEMISTRY......Page 133
PT CALCULATION RESULTS BY THERMOCALC V3.1......Page 144
METAMORPHIC CONDITIONS (P, T, G) AND EVENTS......Page 148
P-T EVOLUTION PATHS......Page 149
METAMORPHIC DOMAIN ANALYSIS......Page 179
ASSIGNING METAMORPHIC EVENT......Page 181
METAMORPHIC FIELD GRADIENTS......Page 183
METAMORPHIC MAP PATTERNS......Page 190
METAMORPHIC ARRAYS......Page 196
INTEGRATION OF METAMORPHIC AND STRUCTURAL DATASETS......Page 201
GARNET ANALYTICAL PROCEDURES......Page 210
GARNET SAMPLE DESCRIPTIONS......Page 211
GARNET GEOCHRONOLOGY RESULTS......Page 213
GARNET GEOCHRONOLOGY INTERPRETATION......Page 214
Metamorphic Interpretation......Page 217
Ma METAMORPHISM (2720-2685 Ma)......Page 219
M1 METAMORPHISM (2720-2685 Ma)......Page 220
M2 METAMORPHISM (2685-2665 Ma)......Page 223
M3a METAMORPHISM (2665-2650 Ma)......Page 225
M3b ALTERATION (2650-2620 Ma)......Page 233
GOLD MINERALIZATION......Page 236
NEOARCHAEAN TECTONIC SETTINGS......Page 244
SPECIFIC DATASETS REQUIRED......Page 246
Acknowledgements......Page 248
References......Page 249
Figures......Page 275
Additional Data on DVD......Page 280