 | | Journal (article/letter/editorial) | | What is a Kimberlite? Petrology and Mineralogy of Hypabyssal Kimberlites Roger H. Mitchell1, Andrea Giuliani2...analyses. Melt inclusion studies have shown that kimberlite melts contain higher alkali concentrations than...(magmatic and/or crustal), the composition of primary kimberlite melts remains unknown. intrusive bodies of holocrystalline...coherent rock (Fig. 1A) occur at different depths in kimberlite pipes (see Fig. 4 in Giuliani and Pearson 2019...ic k imberlites” (K PK; formerly “tuffisitic kimberlite”; named after a classic locality in South Africa) |  | | Book | | Mitchell Lakehead University Thunder Bay, Ontario, Canada SPRINGER SCIENCE+BUSINESS MEDIA, LLC Library...petrology. Bibliography: p. Includes index. I. Kimberlite. I. Title. QE462.K5M58 1986 552' .3 ISBN 978-1-4899-0570-3...critique of the advances which have been made in kimberlite studies over the last twenty-five years. Kimberlites...in this book will serve to stimulate further kimberlite studies. Some of the hypotheses discussed will...University and for his help in the continuance of my kimberlite research. This book would not have been possible |  | | Journal (article/letter/editorial) | | evolution:phlogopitesand oxidesfrom the Fayette County kimberlite, Pennsylvania Rosenr H. HuNren.r ReNoeL D. KIssI-tNG...products);and a Crpoor suite (olivine (Fo 8l-85), pyrope, diopside,and picroilmenite(16-37mol% MgTiOr))...fugacitesof 02, 52, and CO2. Introduction Typically, kimberlite consistsof megacrysts,and their inclusions,and...velocity zone (LVZ) related to the genesisof kimberlite and its early stages of evolution. In this regard...02-0030$02. 00 30 in the mid- to late-stagesof kimberlite evolution' Since the evolution of a melt is usually |  | | Report (issue) | | OF THE INTERIOR GEOLOGICAL SURVEY LAKE ELLEN KIMBERLITE, MICHIGAN, U.S.A. by E. S. McGee and B. C. Hearn...Location map for the Lake Ellen kimberlite Magnetic map of the Lake Ellen kimberlite, showing outcrops P nrl...ilmenites A. Megacrysts and xenocrysts, Lake Ellen kimberlite B. Lake Ellen megacrysts and xenocrysts compared...eclogite and pyroxenite xenoliths from Lake Ellen kimberlite Temperature-pressure diagram, Lake Ellen xenoliths... 3. 4. 5. 6. Megacrysts from the Lake Ellen kimberlite Composite xenocrysts A. Garnet-clinopyroxene |  | | Journal (article/letter/editorial) | | ilmenites, aluminous--magnesian chromites, chrome-pyrope garnets surrounded by thick kelyphytic rims, perovskites...diamond. It is propoed that a typical Indian kimberlite is the product of the mechanical mixing of a...e a r i n g kimberlite, and it is p a r t o f the s o u t h e r n I n d i a n kimberlite province {Fig...k s c r o p o u t in the central I n d i a n kimberlite province w h i c h c o n t a i n s t h e Majhagawan...o m b o t h t h e s o u t h e r n and central kimberlite province are o f Late P r o t e r o z o i c age |  | | Report (issue) | | 3. 4. 5. 6. 7. 8. Geologic map of Williams kimberlite diatremes Magnetic map of Williams 1, 2 and 3...was occurring just prior to incorporation in kimberlite and that ascent was rapid enough (40-70 km/hr)...recrystallization before or during inclusion in kimberlite is suggested by larger (up to 3mm) euhedral olivines...pressure and temperature prior to inclusion in the kimberlite, followed by metasomatic introduction of phlogopite...variations of peridotites seem most compatible with kimberlite generation and ascent during dynamic diapiric |  | | Report (issue) | | CIRCULAR 842 The Potential for Diamond-Bearing Kimberlite in Northern Michigan and Wisconsin Prepared in...Resources The Potential for Diamond-Bearing Kimberlite in Northern Michigan and Wisconsin By W. F. Cannon...Department of Natural Resources Description of a kimberlite pipe and possible cryptovolcanic structures and...1913? -------------------------The Lake Ellen kimberlite ------------------------- 1 1 1 1 3 4 4 4 4...relationship between cryptovolcanic structures and kimberlite -----------~---------------Do Wisconsin drift |  | | Book (volume) | | AmericanGeophysicalUnion Washington,D.C. 20009 1979 Kimberlite Conference Preface Since the first edition...was published in 1979, the Third International Kimberlite Conference was held in Clermont-Ferrand in 1982...concerning rocks now misleadingly referred to as Kimberlite will be removea. Diamonds received attention...still there persists the belief that diamonds an• kimberlite are genetically related. And this in spite of...one can separate out the essential minerals of kimberlite. This comment is pertinent to isotopic studies |  | | Journal (article/letter/editorial) | | Mineral chemistry and crystallization sequences in kimberlite and lamproite dikes from the Sisimiut area, central...C.P. 6128, succ. "A "', Montrkal, P.Q. H3C 3J7 (Canada LITHOS Thy, P., Stecher, O. and Korstg~rd, J...Mineral chemistry and crystallization sequences in kimberlite and lamproite dikes from the Sisimiut area, central...priderite, sulphides, and zircon. Mg-ilmenites and pyrope garnets are considered xenocrystic while most olivine...macrocrysts are believed to be cognate. The primary kimberlite and lamproite magmas originated in the mantle |  | | Report (issue) | | Abstract Garnet is a useful tracer mineral for kimberlite prospecting and garnet color can specifically...minerals (Leighton and McCallum, 1979). Garnet in kimberlite is most commonly derived from disaggregated upper...upper mantle material. Garnet in kimberlite can also be derived from lower or upper crustal rocks, or...were disaggregated and incorporated into the kimberlite during its eruption. Garnets from any of these...these sources could be distinctive indicators of kimberlite in a drainage basin where other garnet-bearing |  | | Report (volume) | | BULLETIN 1604 Garnets are useful tracer minerals for kimberlite prospecting in Montana, and garnet color and...Bibliography: p. 32 Supt. of Docs. no.: 1 19.3:1604 1. Kimberlite-Montana. 2. Garnet-Montana. I. McGee, E. S. II...Abstract Garnet is a useful tracer mineral for kimberlite prospecting, and garnet color can specifically...minerals (Leighton and McCallum, 1979). Garnet in kimberlite is most commonly derived from disaggregated upper...upper mantle material. Garnet in kimberlite can also be derived from lower or upper crustal rocks or |  | | Book | | Mitchell Lakehead University Thunder Bay, Ontario Canada SPRINGER SCIENCE+BUSINESS MEDIA, LLC Library...kimberlites and reviews some of the advances in kimberlite petrology since 1986. The work is a critical...although current hypotheses for the genesis of kimberlite and orangeite are critically reviewed. These...Natural Sciences and Engineering Research Council of Canada, Lakehead University, and De Beers Consolidated...8.1. Finsch . . . . . . . . 1.8.2. Barkly West Region. 1.8.2.1. Bellsbank. 1.8.2.2. Sover . . . 1.8.2 |  | | Book | | ABSTRACTS contributed to THE SECOND INTERNATIONAL KIMBERLITE CONFERENCE Bishop's Lodge, Santa Fe, October...■•A- V\ f I ' , A. DIAMONDIFEROUS SOUTHERN KIMBERLITE OF THE WAJRAKHARUR AREA, INDIA. Jagannadham...known in India from antiquity the presence of kimberlite has been the subject of much specu¬ lation and...were described, but were discounted as being kimberlite (Foote, 1889; Lake, 1890). Subsequently...and Mehr, 1953) but generally con¬ sidered that kimberlite was not present. However, in 1963 Rao and Phadtre |  | Nasir, S., Al-Khirbash, S., Rollinson, H., Al-Harthy, A., Al-Sayigh, A., Al-Lazki, A., Theye, T., Massonne, H.-J., Belousova, E. (2011) Petrogenesis of early cretaceous carbonatite and ultramafic lamprophyres in a diatreme in the Batain Nappes, Eastern Oman continental margin. Contributions to Mineralogy and Petrology, 161 (1) 47-74 doi:10.1007/s00410-010-0521-3 | Journal (article/letter/editorial) | | rocks include group-I ‘‘basaltic’’, and group-II kimberlite ‘‘orangeites, micaceous lamprophyric’’, and olivine...prepared crushed rocks in commercial laboratories in Canada (2 samples, 3 kg each) and in Australia (2 bulk...Activation Laboratories Ltd., Ancaster, Ontario, Canada. Several standards were used to check accuracy...000 0.001 0.005 0.000 8.000 8.000 8.000 Pyrope 24.9 32.5 40.5 Alm Spes 68.5 1.5 63.0 1.1...(after Belousova et al. 2002) C carbonatite, K kimberlite a Data below EMP detection level Fig. 3 a Field |
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