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| Two Point claim, Pikes Peak batholith, Teller County. The Collector’s Edge specimen, Jeff Scovil photo...Mail Stop 150, Box 25046 Federal Center Denver, Colorado 80225 pmodreski@usgs.gov C olorado is, of course...been written as guides to mineral collecting in Colorado. A classic, which went through three major editions...1951 version with a slightly different title), is Colorado Gem Trails and Mineral Guide, by Pearl (1951,...up-to-date guidebook to the state’s minerals is Colorado Rockhounding, by Voynick (1994). Other published |
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| Netherlands [6] On the geodynamic setting of kimberlite genesis Philip England and Greg Houseman Department...20 mm yr 1. We suggest that the generation of kimberlite magmas may result from thermal plumes incident...responsible for the e m p l a c e m e n t of kimberlite bodies. Some u n d e r s t a n d i n g of this...fairly general agreement on some features of kimberlite genesis: the magmas are thought to originate...s ; although one craton may have experienced kimberlite activity several times d u r i n g its history |
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| 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 |
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| Petrology 9 Springer-Verlag 1984 The alleged kimberlite-carbonatite relationship: evidence from ilmenite...Institute of Technology, Pasadena, California 91125, USA Abstract. Carbonate-rich, SiO2-poor residua are developed...composition, have been used to refute the "alleged kimberlite-carbonatite relationship". New microprobe analyses...kimberlites. The ilmenites are distinguished from kimberlite ilmenites by higher MnO, FeTiO 3, and Nb2Os,...negligible Cr20 3. The spinels are distinguished from kimberlite spinels by their AI203 and Cr203 contents. There |
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| The physical and chemical changesundergoneby kimberlite magma during its eruption and crystallization...can be gained by study of groundmassminerals in kimberlite and of late-stagereactionsbetween kimberlitic...kimberlitic minerals and the residualfluids of kimberlite magma.Boyd and Clement (1977)describedmetasomatic zoning...zoning trend" toward enrichment in MgTiO, and a "kimberlite reaction trend" toward enrichmentin FeTiO, and...describedcomplex reaction mantles on ilmenite nodules in kimberlite and discussedtheir signifcance as indicators |
 | Collins, Donley S., Cobban, Robert R., Foord, Eugene E., Murphy, Jack A. (1989) Bibliography for update and revision of U.S.G.S. Bulletin 1114, Minerals of Colorado -- a 100 year record, by Edwin B. Eckel, Part A - Paper copy --Bibliography data file disks. Open-File Report Vol. 1989 (89-206) US Geological Survey doi:10.3133/ofr89206a | Report (issue) |
| Survey Denver, Colorado Department of Geology, Denver Museum of Natural History Denver, Colorado NOTE FOR...revision of U.S.G.S. Bulletin 1114, Minerals of Colorado A 100 year record, by Edwin B. Eckel By Donley...Prepared in cooperation with Friends of Mineralogy - Colorado Chaptar, and the Denver Museum of Natural History...references dealing with the mineralogy of the state of Colorado. It is part of a more than 10 year effort to update...and revise U.S.G.S. Bulletin 1114, Minerals of Colorado: A 100 year record, by Edwin B. Eckel (1961). |
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| Bibliography and Index of Colorado Geology 1981 1982 by American Geological · Institute Colorado Geological Survey...Resources Denver, Colorado I 1983 Information Series 19 BIBLIOGRAPHY AND INDEX OF COLORADO GEOLOGY 1981-1982...Geological Institute Colorado Geological Survey Department of Natural Resources Denver, Colorado 1983 ii CONTENTS...• • . . . . . • • . • • • . . • . . • • . 47 County Index............................................Geological S Institute, Falls Church, Virginia. Colorado Geological This volume contains 595 citations |
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| metamorphosed hydrothermal system at Pine Canyon. Piute County, Utah. U.S.A. [abs.]: Mineralogical Society (London)...mineralogy of the Cerrillos copper deposit, Santa Fe County, New Mexico: New Mexico Geological Society Guidebook...for the tectonic development of the southeastern Colorado Plateau boundary: Journal of Geophysical Research...origin of Paleo- and Mesoproterozoic rocks of the Colorado province, U.S.A.: Precambrian Research, v. 63...1986, Isotope and trace element geochemistry of Colorado Plateau volcanics: Geochimica et Cosmochimica |
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| 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 |
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| contains micas unlike those in minettes.Those kimberlite phlogopitesthat match minettemicasare predom...phlogopite,diopsidicclinopyroxene,and yellowish-green for micas in other minettes (see below). Severalpoints... t lo- m9 Kimberlites (Fig. 5) Generally, kimberlite phlogopites have higher mg values and SiO2, lower...165) that are chemically comparable to their kimberlite micas are to be found in minettes. Xenoliths...occurs in a xenolith included in the Peuyuk C kimberlite yet another piece of evidencethat the liquids |
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| one? First, in this book I have concentrated on kimberlite as an individual rock-type and a sampler of the...have concentrated more on specific aspects of kimberlite and upper mantle geology; as a result I have...Volumes of the two International Conferences on Kimberlite held at Capetown in 1973 and Santa Fe in 1977...who did much to stimulate my early interest in kimberlite. I acknowledge also the following people for.... . . . . . . . . . .. Indirect Evidence for Kimberlite Intrusions. .. Summary. . . . . . . . . . . |
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| 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...Thunder Bay CONTENTS 1. Historical Aspects of Kimberlite Petrology . . . . . . . . . . . . . . . . . |
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| Canada (from Clark and Mitchell, 1975), 3 = Iron Mountain, Wyoming, U.S.A. (from C.B. Smith et al., 1976)...substantial geikielite solution would suggest a kimberlite origin (analyses 4 in Fig. 4). Likewise 5--6...the damkjernite from the Fen "central complex kimberlite", Norway (analyses 5, Fig. 4), are typical of...carbonatites and alkaline complexes; it is the name "kimberlite" which is inappropriate, not the ilmenite chemistry...rutile--ilmenite intergrowths in the Green Mountain kimberlite, Colorado, U.S.A. (Boctor and Meyer, 1975) |
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| 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...Primary Micas . . . . . . 2.1.8.3. Summary of Kimberlite Mica Compositional Variation . 2.1.9. Mica in... . . . . . . . . 189 2.4.3. Comparisons with Kimberlite Spinels . 195 2.4.4. Spinel Compositional Variation... 218 2.6.3. Comparison with Perovskites from Kimberlite 221 2.6.4. Comparison with Lamproite Perovskite |
