Deep-Seated Inclusions in Kimberlites and the Problem of the Composition of the Upper Mantle

Title Page......Page 2
Copyright......Page 3
Table Of Contents......Page 4
Preface......Page 5
CHAPTER I METHODS OF INVESTIGATION......Page 7
CHAPTER II BRIEF DESCRIPTION OF KIMBERLITE PIPES INVESTIGATED......Page 17
§1. PYROPE PERIDOTITES AND PYROXENITES......Page 22
Garnet......Page 25
Pyroxenes......Page 29
The Pyrope Peridotites of the 'Udachnaya' Pipe......Page 30
§2. MINERALS OF THE ULTRAMAFIC ASSOCIATION FROM A KIMBERLITE CONCENTRATE......Page 38
Zoned Garnets from Kimberlite......Page 44
§3. ECLOGITES......Page 49
Corundum Eclogites......Page 57
§4. THE GROSPYDITES AND KYANITE ECLOGITESOF THE 'ZAGADOCHNAYA1 PIPE......Page 60
Garnet......Page 62
Clinopyroxenes......Page 68
Kyanite......Page 71
§6. CONDITIONS OF FORMATION OF ROCKS OF THE FACIES......Page 78
§7. XENOLITHS OF DIAMOND-BEARING PERIDOTITES......Page 89
§8. XENOLITHS OF DIAMOND-BEARING ECLOGITES......Page 92
Garnet......Page 97
Clinopyroxenes......Page 100
Other Minerals......Page 103
§9. CRYSTALLINE INCLUSIONS IN DIAMONDS......Page 107
Garnets......Page 114
Chromite......Page 122
Enstatite......Page 124
Clinopyroxenes......Page 143
Other Inclusions......Page 145
Problematic Syngenetic Inclusions......Page 146
§10. MINERAL INTERGROWTHS WITH DIAMONDS......Page 149
Garnets......Page 150
Clinopyroxenes......Page 151
Other Minerals......Page 154
§11. PARAGENETIC FEATURES OF MINERALS ASSOCIATED WITH DIAMONDS......Page 158
The Paragenesis of Calcium-poor Chrome-pyrope harzburgite-dunitic......Page 161
The Lherzolitic Paragenesis......Page 163
The Paragenesis of Calcium-rich Chrome-pyrope wehrlitic......Page 165
The Eclogitic Paragenesis......Page 167
Inclusions in Diamond from a Diamond-bearing Eclogite......Page 169
Features of Crystallization of Minerals Associated with Diamonds......Page 171
The Situation in Diamond Crystallization......Page 173
The Composition of the Magnesian and Magnesian-calcium Chromium-bearing Garnets......Page 176
The Determination of the Composition of Magnesian Garnets from Their Physical Properties......Page 179
The Composition of the Pyrope-almandine Garnets......Page 186
The Isomorphous Content of Titanium in Garnets......Page 188
The Isomorphous Content of Sodium in Garnets......Page 193
Clinopyroxenes of the Ultramafic Associations......Page 205
Clinopyroxenes of the Eclogites and Grospydites......Page 209
§14. ENSTATITE......Page 219
Isomorphism of Chromium in Olivines......Page 223
§17. THE MINERALS OF THE A 1 203 - Cr203 ISOMORPHOUS SERIES......Page 227
§18. THE CHROME-SPINELS......Page 230
§19. ILMENITES......Page 235
§20. RUTILE......Page 238
Garnet-clinopyroxene......Page 239
Garnet-olivine......Page 240
Olivine-enstatite and Enstatite-clinopyroxene......Page 242
§22. DISTRIBUTION OF Ca AND Mg IN GARNETS AND PYROXENES AND THE EQUILIBRIUM TEMPERATURES OF ECLOGITES AND PERIDOTITES......Page 243
§23. DISTRIBUTION OF Cr AND Al......Page 250
Garnet-chromite and Clinopyroxene-chromite......Page 251
Garnet-olivine......Page 253
§24. THE MINERAL COMPOSITION AND FACIES OF METAMORPHISM OF THE UPPER MANTLE......Page 256
§25. THE ROLE OF H2O IN THE UPPER MANTL......Page 261
§26. THE ROLE OF Na20, K20, AND Cr203 IN THE UPPER MANTLE......Page 263
§27. THE REGIME OF OXYGEN IN THE UPPER MANTLE......Page 265
§28. FEATURES OF THE PARTIAL MELTING OF THE MATERIAL OF THE UPPER MANTLE......Page 267
CHAPTER VIII THE MINERALOGICAL CRITERIA OF THE DIAMOND-BEARING KIMBERLITES......Page 269
BIBLIOGRAPHY......Page 279
CONCLUSIONS......Page 299