Eclogite facies rocks:
Gespeichert in:
| Format: | Buch |
|---|---|
| Sprache: | English |
| Veröffentlicht: |
Glasgow [u.a.]
Blackie [u.a.]
1990
|
| Ausgabe: | 1. publ. |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | Literaturverz. S. 350 - 392 |
| Beschreibung: | XV, 396 S. Ill., graph. Darst., Kt. |
| ISBN: | 0216926874 |
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| 245 | 1 | 0 | |a Eclogite facies rocks |c ed. by D. A. Carswell |
| 250 | |a 1. publ. | ||
| 264 | 1 | |a Glasgow [u.a.] |b Blackie [u.a.] |c 1990 | |
| 300 | |a XV, 396 S. |b Ill., graph. Darst., Kt. | ||
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| 500 | |a Literaturverz. S. 350 - 392 | ||
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| 999 | |a oai:aleph.bib-bvb.de:BVB01-001768676 | ||
Datensatz im Suchindex
| _version_ | 1804117119075352576 |
|---|---|
| adam_text | Titel: Eclogite facies rocks
Autor: Carswell, D. A.
Jahr: 1990
Contents
1 Eclogites and the eclogite facies: definitions and classifications 1
DA. CARSWELL
1.1 Background 1
1.2 Definition of eclogite as a litho-type 1
1.3 Definition of the eclogite facies 2
14 Eclogite facies P-T conditions and boundary relationships 6
15 Subdivision of the eclogite facies P-T regime 10
1-6 Summary of key points 13
2 Eclogite facies mineral parageneses 14
A. MOTTANA, DA. CARSWELL, C. CHOPIN
and R. OBERHÄNSLI
2.1 Introduction 14
2.2 Ultrabasic rock compositions 15
2.3 Basic rock compositions 19
2.3.1 General considerations 19
2.3.2 Composition variations in basic rock protoliths 21
2.3.3 Prograde eclogite facies metamorphism in Fe-rich compositions 22
2.3.4 Prograde eclogite facies metamorphism in Mg-rich
compositions 27
2.3.5 Prograde eclogite facies metamorphism in common basic
compositions 29
2.4 Pelitic rock compositions 35
2.4.1 General considerations and petrogenetic grid 35
2.4.2 From blueschist facies to eclogite facies 35
2.4.3 Prograde evolution along a high dP/dT gradient 37
2.4.4 Extension to the whole eclogite facies field 40
2.5 Metagranitoids and other acid-intermediate rock compositions 42
2.6 Carbonate rock compositions 46
2.7 Metamorphosed Fe-Mn rocks 49
3 Experimental studies on the stability of eclogite facies mineral
parageneses 53
S.L. HARLEY and D.A. CARSWELL
3.1 Introduction 53
3.2 P-T stability conditions for the eclogite facies garnet Iherzolite
assemblage in magnesian metaperidotites 53
3.3 P-T stability conditions for eclogite facies assemblages in natural basalt
and related rock types 58
3.4 P-T stability conditions for eclogite facies assemblages in basaltic and
related rock types based on simple system studies 60
3.4.1 NAS and NASH systems 61
3.4.2 NMASH and related systems 63
3.4.3 CAS and NCAS systems 66
3.4.4 CASH and NCASH systems 69
ix
CONTENTS
3.5 Experiments in CMAS and CMSH systems relevant to mineral
assemblages in eclogite facies metabasites, grospydites and intermediate
rocks 72
3.5.1 Silica deficient CMAS system 72
3.5.2 Silica saturated CMAS and CMSH systems 73
3.6 Experiments in simple systems relevant to eclogite facies metamorphism
of quartzites, Mg-quartzites, pelites and other rock types 76
3.6.1 Quartz to coesite transition 76
3.6.2 MASH system 76
3.6.3 KMASH system 80
3.7 Concluding remarks 82
Mineral barometry and thermometry 83
D.A. CARSWELL and S.L. HARLEY
4.1 Background 83
4.2 Garnet-clinopyroxene Al barometer 85
4.3 Garnet-orthopyroxene Al barometer 86
4.4 Jadeite + quartz barometer 92
4.5 Phengite barometer 95
4.6 Other barometers 97
4.7 Two-pyroxene solvus thermometer 98
4.8 Garnet-clinopyroxene Fe2 + -Mg exchange thermometer 102
4.9 Garnet-orthopyroxene Fe2+-Mg exchange geothermometer 105
4.10 Garnet-olivine Fe2 + -Mg exchange thermometer 107
4.11 Garnet-phengite Fe2 + -Mg exchange thermometer 108
4.12 Trace element exchange thermometers 109
Role of kinetics in the formation and preservation of eclogues 111
DC. RUBIE
5.1 Introduction 111
5.2 Kinetics and reaction pathways during eclogite formation 112
5.2.1 Domainal equilibrium 112
5.2.2 Reaction pathways 116
5.3 Plagioclase-breakdown reactions 116
5.4 The Breakdown of augite and olivine 124
5.5 Corona formation 125
5.6 Formation of metastable phases 128
5.7 Effects of deformation 129
5.8 Preservation of eclogites 134
5.8.1 Thermal-tectonic uplift rates 135
5.8.2 Kinetics of retrograde reactions 135
5.9 Conclusions 140
Isotopie systems—geochronology of eclogites 141
D. GEBAUER
6.1 Introduction 141
6.2 First U-Pb zircon attempts in Norway: K Ar as comparison 141
6.3 U-Pb zircon-suite method 142
6.3.1 Historical background and description 142
6.3.2 How much zircon does an eclogite contain? 143
6.3.3 First application: eclogites of Miinchberg Gneiss Massif 143
6.3.4 Further applications: Sauviat-sur-Vige (French Massif Central) 145
6.3.5 Other Phanerozoic eclogites formed from probable Phanerozoic
protoliths within the European Variscides 146
6.3.6 Phanerozoic eclogites of unknown protolith ages 147
CONTENTS Xi
6.3.7 Eclogites for which only the protolith age only could be obtained 148
6.3.8 Phanerozoic eclogites formed from possible Precambrian
protoliths 148
6.4 Ion probe dating of eclogite zircons 150
6.4.1 Analytical background 150
6.4.2 First example: Gotthard Massif (Central Alps) 151
6.5 Sm-Nd method 155
6.5.1 First attempts in Japan; improvement of analytical techniques 155
6.5.2 Eclogites in the Caledonides and the problem of two-point
isochrons 156
6.5.3 European Variscides 158
7 Occurrence and stability conditions of low-temperature eclogites 160
M. SCHLIESTEDT
7.1 Introduction 160
7.2 Occurrences 161
7.2.1 Franciscan Complex of California (USA) 163
7.2.2 New Caledonia 164
7.2.3 Sifnos (Greece) 164
7.3 Assemblages and mineral compositional variations 165
7.3.1 Mineral assemblages 165
7.3.2 Mineral compositions 168
7.4 Stability conditions 171
7.4.1 Geothermometry 173
7.4.2 Geobarometry 174
7.4.3 Role of fluids 174
7.5 Pressure-temperature-time paths 175
7.6 Summary: tectonic implications 177
8 Formation and exhumation of medium-temperature eclogites in
the Scandinavian Caledonides 180
S.J. CUTHBERT and DA. CARSWELL
8.1 Introduction 180
8.2 Tectonostratigraphic distribution of eclogite facies rocks 183
8.3 Protoliths of eclogite facies rocks 184
8.4 Mineralogical evolution of metabasic eclogites 187
8.4.1 Coronites 187
8.4.2 Garnet zoning and solid inclusions 189
8.4.3 Eclogite formation in shear-zones 191
8.5 Retrogression and preservation of eclogite facies parageneses 192
8.6 Timing of eclogite facies metamorphism 194
8.7 Pressure-temperature-time paths 196
8.8 Tectonic models 200
8.9 Concluding remarks 203
9 Eclogite formation and distribution in the European
Variscides 204
P.J. O BRIEN, D.A. CARSWELL and D. GEBAUER
9.1 Introduction 204
9.2 Spatial and temporal distribution and lithological associations of
eclogites and associated HP mineral assemblages 206
9.2.1 Bohemian Massif 206
9.2.2 Schwarzwald and Vosges 212
9.2.3 Massif Central 214
XU CONTENTS
9.2.4 Armorican Massif 216
9.2.5 Iberian Massif 218
9.3 Pétrographie implications and geotectonic scenarios for eclogite formation 220
10 Formation and distribution of eclogite fades rocks in the Alps 225
G.T.R. DROOP, B: LOMBARDO and U. POGNANTE
10.1 Introduction 225
10.2 Pre-Alpine eclogites and garnet peridotites/pyroxenites 226
10.2.1 External massifs of the Helvetic domain 226
10.2.2 Pennine basement complex 228
10.2.3 Austro-Alpine nappes 228
10.2.4 Implications for pre-Alpine geotectonics 231
10.3 Alpine eclogites and related eclogite facies rocks 231
10.3.1 Eclogitisation of the Mesozoic ophiolites and associated
sediments 232
10.3.2 Continental eclogite facies rocks of the palaeo-African margin 244
10.3.3 Continental eclogite facies rocks of the palaeo-European
margin 247
10.4 Regional patterns of Alpine eclogite facies metamorphism 252
10.5 Tectonic models for formation and exhumation of Alpine eclogites 256
11 Petrogenesis of Mg-Cr garnet peridotites in European
metamorphic belts 260
L.G. MEDARIS, Jr. and D.A. CARSWELL
11.1 Introduction 260
11.2 Mg-Cr and Fe-Ti garnet peridotites 260
11.3 Summary of Mg-Cr garnet peridotite occurrences in Europe 261
11.3.1 Caledonides 261
11.3.2 Variscides 266
11.3.3 Tethysides 270
11.4 Thermometry and barometry 275
11.4.1 General considerations 275
11.4.2 Temperature estimates 276
11.4.3 Temperature-pressure estimates 277
11.4.4 Temperature-pressure paths 285
11.5 Concluding remarks 290
12 Eclogite stability near the crust-mantle boundary 291
W.L. GRIFFIN, S.Y. O REILLY and N.J. PEARSON
12.1 Introduction 291
12.2 Description of xenolith suites 292
12.2.1 Anakie 292
12.2.2 Eastern margin of the Australian craton (EMAC) 293
12.2.3 Lesotho 297
12.3 Geothermobarometry 297
12.4 Mineral chemistry 300
12.4.1 Analytical methods 300
12.4.2 Clinopyroxene 300
12.4.3 Garnet 305
12.5 Bulk composition effects 307
12.6 Discussion 310
12.6.1 Granulite-eclogite transitions and eclogite facies 310
12.6.2 Origin of protoliths of eclogite xenoliths 311
12.6.3 Stability of eclogites 312
CONTENTS Xlll
12.6.4 Occurrence of eclogites 313
12.7 Conclusions 314
13 High-temperature and ultra-high pressure eclogites 315
J.B. DAWSON and D.A. CARSWELL
13.1 Introduction 315
13.2 Petrography and textures 316
13.3 Classifications of kimberlite eclogites 320
13.4 Mineral chemistry 322
13.4.1 Garnet 322
13.4.2 Clinopyroxene 325
13.4.3 Orthopyroxene 328
13.4.4 Amphibole 328
13.4.5 Mica 328
13.4.6 Kyanite 328
13.4.7 Mullite 328
13.4.8 Feldspar 328
13.4.9 Yagiite 329
13.4.10 Unidentified K-rich silicates 329
13.4.11 Sulphides 329
13.4.12 Rutile 330
13.4.13 llmenite 330
13.4.14 Corundum 330
13.4.15 Spinel 330
13.5 Eclogite bulk-rock chemistry 331
13.5.1 Major and trace elements 331
13.5.2 Isotope chemistry 332
13.6 The age of eclogites 334
13.7 P-T conditions for eclogite formation 335
13.8 Origin of high-temperature kimberlite eclogites 344
13.8.1 Model 1 344
13.8.2 Model 2 346
13.9 Crustal exposures of ultra-high pressure eclogite facies lithologies 348
13.10 Concluding remarks 349
References 393
Index 393
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| indexdate | 2024-07-09T15:49:20Z |
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| spelling | Eclogite facies rocks ed. by D. A. Carswell 1. publ. Glasgow [u.a.] Blackie [u.a.] 1990 XV, 396 S. Ill., graph. Darst., Kt. txt rdacontent n rdamedia nc rdacarrier Literaturverz. S. 350 - 392 Éclogite Eclogite Eklogit (DE-588)4278264-8 gnd rswk-swf Eklogit (DE-588)4278264-8 s DE-604 Carswell, D. A. Sonstige oth HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=001768676&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Eclogite facies rocks Éclogite Eclogite Eklogit (DE-588)4278264-8 gnd |
| subject_GND | (DE-588)4278264-8 |
| title | Eclogite facies rocks |
| title_auth | Eclogite facies rocks |
| title_exact_search | Eclogite facies rocks |
| title_full | Eclogite facies rocks ed. by D. A. Carswell |
| title_fullStr | Eclogite facies rocks ed. by D. A. Carswell |
| title_full_unstemmed | Eclogite facies rocks ed. by D. A. Carswell |
| title_short | Eclogite facies rocks |
| title_sort | eclogite facies rocks |
| topic | Éclogite Eclogite Eklogit (DE-588)4278264-8 gnd |
| topic_facet | Éclogite Eclogite Eklogit |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=001768676&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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