 | | Journal (article/letter/editorial) | | Upper Mantle in the Buell Park Kimberlite, Arizona, USA A Discussion Douglas Smith Department of GeologicalSciences...GeologicalSciences,Universityof Texas, AustinTX 78731, USA Abstract. Titanoclinohumite, titanochondrodite,...source of their samples, is 6km southwest of Green Knobs, another major diatreme of kimberlitic tuff....Descriptions of hydrated peridotite inclusions from Green Knobs by Smith (1974) suggest that the temperatures... Almost 90% of the peridotite inclusions at Green Knobs contain a suite of hydrous minerals which includes |  | | Journal (article/letter/editorial) | | leaf gold, smoky quark, and turquoise specimens, New Mexico boasts an array of mineral species. RAMON S....Albuquerque, New Mexico 87110 THE PURPOSE OF THIS INDEX is to provide a comprehensive listing of New Mexico...Particular attention was directed toward incorporating new information on discoveries and occurrences, although...to compile all of the mineral occurrences in New Mexico-a venture of that magnitude is beyond the scope...Minerals of New Mexico is the basic reference for locations. Abstracts from the New Mexico mineral symposia |  | | Journal (article/letter/editorial) | | 9 by Springer-Verlag 1980 Titanian Hydroxyl-Clinohumite: Formation and Breakdown in Antigorite Rocks...AJ-20, University of Washington, Seattle, WA 98195, USA Abstract. Petrographic cvidence is prcsentcd for...for the breakdown of titanian hydroxyl-clinohumite to olivine + magnesian ilmenite (or geikielite)_+ magnetite...Sondrio, Italy. The breakdown coincides in the field with the isograd reaction: antigorite +diopside...is therefore concluded that this variety of clinohumite is unstable above approximately 520 ~ C at a |  | | Journal (article/letter/editorial) | | Mineralogist, Volume 77, pages 168-178, 1992 Titanian clinohumite in the carbonatitesof the JacupirangaComplex...Mineral chemistry and comparisonwith titanian clinohumite from other environments Josf C. Glspan Departamento...70910 Brasilia DF, Brazil Ansrucr Titanian clinohumite (TiCl) occurs in the carbonatites of the Jacupiranga...importance to mantle geology. INrnonucrrou Titanian clinohumite (TiCl) is not an abundant mineral in the Earth's...found in Ribbe (1980)and Deer et al. (1982). Clinohumite was reported in the Jacupirangacarbonatites by |  | | Journal (article/letter/editorial) | | Printed in The Netherlands 107 PETROLOGY OF THE GREEN KNOBS DIATREME AND IMPLICATIONS FOR THE UPPER MANTLE...Geological Sciences, University of Texas, Austm, Texas USA Received September 25, 1975 Peridotite inclusions...crystal fragments, and kimberlite breccia at Green Knobs, New Mexico, have been studied to evaluate compositions...associated with the kimberlites. "l'he mantle below Green Knobs consists of spinel peridotite from 45 to perhaps...movement along these zones. 1. Introduction Green Knobs, a kimberlitic diatreme containing crustal and |  | | Journal (article/letter/editorial) | | Upper Mantle in the Buell Park Kimberlite, Arizona, USA Ken-ichiro Aoki 1, Kiyoshi Fujino 2 and Masaki...phases such as amphibole, phlogopite or problably clinohumite. Indeed, phlogopite, pargasite, potassic richterite...Ringwood and Major [1] and Sclar et al. [2]. In such new hydrated magnesian silicate phases were synthesized...hydroxyl-chondrodite 2MgzSiO 4. Mg(OH)2 and hydroxyl-clinohumite 4 Mg2SiO 4. Mg(OH) 2 for the first time. It is...diatrem, Arizona was made and chondrodite and clinohumite were detected. These natural minerals are characterized |  | | Journal (article/letter/editorial) | | metasomatism in the mantle within the stability field of garnet peridotite, probably at depths of at least...Sciences, University of Texas, Austin, TX 78712, USA Editorial responsibility: 1.S.E. Carmichael ciated...ultramafic microbreccia (SUM) in diatremes of the Navajo field (Watson 1967; McGetchin and Silver 1970, 1972; Roden...tremolite, kornerupine, lawsonite, titanian clinohumite, and titanian chondrodite. If at least some of...mantle hydration. The xenoliths may also provide new constraints on mineral equilibria in hydrated ultramafic |  | | Journal (article/letter/editorial) | | in Cr-pyrope from the Navajo volcanic field of the Colorado Plateau, SW USA, and implications for the mantle...in Cr-pyrope from the Navajo volcanic field of the Colorado Plateau, SW USA, and implications for the mantle...in Cr-pyrope from the Navajo volcanic field of the Colorado Plateau, SW USA, and implications for the mantle...Geosciences, University of Texas, Austin, TX 78712, USA Journal Pre-proof ABSTRACT The zonation of trace...subduction. The garnets are from the Navajo Volcanic Field (NVF) of the Colorado Plateau in the southwestern |  | | Journal (article/letter/editorial) | | Upper Mantle in the Buell Park Kimberlite, Arizona, USA A Rely Ken-ichiro Aoki Institute of Mineralogy, Petrology...solution (Hariya et al., 1973), that chondrodite, clinohumite and amphibole are stable over a wide range of...is possible to consider that the chondrodite, clinohumite and amphibole minerals occurring in kimberlites...composition intermediate between chondrodite and clinohumite in the kimberlites. Furthermore, the Buell Park...1976) that the P-T fields of chondrodite and clinohumite are above 800~ and 25 kbar in the continental |  | | Journal (article/letter/editorial) | | inclusions in pyrope crystals from Garnet Ridge, Arizona, USA: implications for processes in the upper mantle ...pyrope crystals from Garnet Ridge in the Navajo Volcanic Field on the Colorado Plateau are investigated in...Ti, Cr, Fe and Zr), srilankite (ZrTi2O6), and a new oxide mineral, carmichaelite (MO2)x(OH)x, where M...Sciences, University of Michigan, Ann Arbor, MI 48109, USA; Fax: 734-763-4690; E-mail: liping@umich.edu Editorial...diatremes 25±32 Ma ago (Watson 1967) in the Navajo Volcanic Field brought up materials from the upper mantle |  | | Journal (article/letter/editorial) | | RELATED ROCKS IN THE MOSES ROCK DIKE, SAN JUAN COUNTY, UTAHI Tnorr.qs R. McGrrcyrN, Department.of Earth...first recognizedthe kimberlite-bearing diatremesas volcanic features (Gregorl', 1915). Williams (1936) briefly...kimberlite diatremesin his reconna.issance study of the volcanic rocksof the Navajo and Hopi Reservations. The...Garnet Ridge. Just north across the Utah border from Red Mesa, Arizona and approximately 20 miles east of...monocline near the Arizona-New I\4exicoborder northwest of Gallup, New Mexico. The largest is a circular |  | | Journal (article/letter/editorial) | | Sciences, University of Texas, Austin, TX 78713, USA Abstract. Mineral associations and compositions...crystals are in ultramafic diatremes of the Navajo field on the Colorado Plateau. Although inclusions of...up unaltered from the mantle is the Navajo volcanic field on the Colorado Plateau, where carbonates occur...inclusions repeatedly were repolished to expose new surfaces. Standards used for analysis include olivine...diatreme (Malde and Thaden 1963; Hunter 1979) and the Red Mesa diatreme (Hunter 1979). Hunter (1979) and Hunter |  | | Journal (article/letter/editorial) | | Springer-Verlag 2011 Abstract This study presents new phase equilibrium data on primitive mantle peridotite...Massachusetts Institute of Technology, Cambridge, MA 02139, USA e-mail: ctill@mit.edu A. C. Withers Department of...University of Minnesota, Minneapolis, MN 55455, USA wedge. Therefore, the dehydration of serpentinized...lowers the peridotite solidus (Kushiro et al. 1968b; Green 1973; Millhollen et al. 1974; Mysen and Boettcher...Kawamoto and Holloway 1997; Grove et al. 2006; Green et al. 2010). One challenge facing experimental |  | | Book (edition) | | org/details/mineralsofnewmexOOnort MINERALS OF NEW MEXICO Before all things, there which has them ...Henderson, 1933 MINERALS of New Mexico STUART A. NORTHROP University of Mew Mexico PROPERTY OF HBSIER ...UNIVERSITY OF NEW MEXICO PRESS ALBUQUERQUE © 1944. 1959. UNIVERSITY OFNEW MEXICO PRESS ALL RIGHTS...BOUND AT THE UNIVERSITY OF NEW MEXICO PRINTING PLANT ALBUQUERQUE, NEW MEXICO, U. S. A. FOR IVAH 1...history of New Mexico mineralogy and mining 3 5 Prehistoric utilization of minerals New New Mexico under |  | | Journal (article/letter/editorial) | | Springer-Verlag 1998 Printed in Austria Titanian clinohumite formation in the Zermatt-Sl as ophiolites, Central...version accepted August 11, 1998 Summary Titanian clinohumite (Ti-Chu) represents a stable constituent of the...serpentinites of the Zermatt area, Central Switzerland. The red-brown fluorine-free mineral occurs as small grains...nearly stoichiometric diopside recrystallized as a new greenschist facies pyroxene in the serpentinite....According to recent experimental data, the stability field of Ti-Chu extends to higher temperatures than found |  | | Journal (article/letter/editorial) | | Archean Ruby Range metamorphic complex. Consistent field, petrologic, petrofabric and textural relationships...(magnesio-hornblende, orthopyroxene, olivine, green spinel, ± titanian hydroxyl-clinohumite) and associated rock types (meta-rodingites)...barometry in the host rocks. Titanian hydroxyl-clinohumite was stabilized under these conditions by an appreciable...Sinlder (1942) first described the mineralogy, field relationships and economic potential of the Wolf...anthophyllite, actinolite, chlorite, talc, calcite, clinohumite and annabergite. He believed that autometasomatism |  | | Journal (article/letter/editorial) | | Springer-Verlag 2000 Alison Pawley Stability of clinohumite in the system MgO-SiO2-H2O Received: 30 April...1999 Abstract The low-pressure stability of clinohumite has been investigated in phase-equilibrium experiments...experiments on the reaction forsterite + brucite = clinohumite. The reaction was bracketed between 2.45 and...reaction brucite = periclase + vapour, the reaction clinohumite = forsterite + vapour was bracketed between 1...position of the reaction forsterite + brucite = clinohumite is 0.5 GPa below the position determined in |  | | Journal (article/letter/editorial) | | 3,4 for norbergite, chondrodite, humite, and clinohumite, respectively), have been proposed as possible...of water in the Earth’s upper mantle. Ti-rich clinohumite and chondrodite, for example, have been found... show that hydroxylclinohumite has a stability field extending from below 1.5 GPa at 900 °C to at least...for evaluating ROSS AND CRICHTON: EoS OF OH-CLINOHUMITE AND OH-CHONDRODITE the role of hydrous minerals...depth. Reported values for the bulk moduli of clinohumite and chondrodite, however, show considerable variation |  | | Journal (article/letter/editorial) | | weight) ZM1opx-HT Kilbourne Hole, New – 0 0 0 0 0 0 0 0 This study Mexico, U.S.A. (dehydrated) GRR247 Synthetic...1939 3226‡ 217(22)§ 243(25) Bell et al. (1995) New Mexico, U.S.A. DE2-1 Deutsche Erde 2 kimberlite, 3.318§...240(24) 245(25) Skogby et al. (1990) GKopxA Green Knobs, 3.318§ 1403(98) 1357(163) 2963(296) 2654 3069...neglected matrix effects entirely, yet recommended new absorption coefficients for NAMs based on calibration...similar phenomenon could be envisaged for Ti-clinohumite lamellae or platelets in olivine (Mosenfelder |  | | Book | | Carlson Carnegie Institution of Washington, DC, USA TREATISE ON GEOCHEMISTRY Volume 2 Executive Editors...MA, USA and K. K. Turekian Yale University, New Haven, CT, USA ES ¥4 ELSEVIER 2005 ON — NEW YORK...Oxford OX5 11GB — London WC1X 8RR The Netherlands USA UK : UK © 2005 Elsevier Ltd. All rights reserved...com/locate/permissions). Drive, Danvers, MA 01923, USA; phone: (+1) (978) 7508400, fax: (+1) (978) 7504744...GODARD 103 ou US) Mantle Samples Included in Volcanic Rocks: Xenoliths and Diamonds D. G. PEARSON, D |  | | Book (volume) | | macro- and micro-inclusions of foreign material. The field is ripe for study if one can separate out the essential...McCal!um, C. D. Mabarak, and H. G. Coopersmith II. FIELD KIMBERLITES RELATIONS GEOLOGY OF ThE DOKOLWAYO...were were within within the the diamondstability field at a temperature close feet. feet. formed at virtually...pressures. temperatures and diamon d stability field at a temperature close to 11000C and a pressure...might crystallise and hence to gain an insight into new No attempt was made to allocate olivine, orthopyroxene |  | | Book | | With 84 Figures Springer-Verlag Berlin Heidelberg New York 1980 Professor J. BARRY DAWSON Department...deposits in the vicinity of Kimberley were an entirely new phenomenon in diamond mining. The diamonds were found...diamondiferous rock was an igneous rock occupying an old volcanic vent but it was not until 1887 that Lewis gave...xenoliths of carbonaceous shale as to resemble a volcanic breccia. (He also believed that diamond resulted...century in the vicinity of Ludlowville, near Ithaca, New York State Introduction 3 (Vanuxem 1837). In |  | | Journal (article/letter/editorial) | | California 91125-2500, U.S.A. ABSTRACT We performed new experiments on incorporation of hydrogen in olivine...(1996). Although this is largely due to the use of a new calibration in our study, correction of previous...attention over the past two decades as a result of new work on natural and synthetic NAMs as well as widespread...developments have raised new questions and controversies. First, Bell et al. (2003) presented a new calibration for...activity on OH speciation have been contradicted by new experimental studies (Matveev et al. 2001; Lemaire |  | | Book (edition) | | thirty-five scientific papers and discovered sixteen new mineral species, naming two of them after his co-authors...He has discovered and helped to describe several new Arizona minerals which appear in this volume. For...Mineralogy of the American Museum of Natural History, New York City; and Jeffery Kurtzeman, award-winning photographer...Cruz County. Bandy collection. Jeff Kurtzeman. Cerussite on aurichalcite. 79 mine, Gila County. Wayne...Kurtzeman. Wulfenite on mottramite. 79 mine, Gila County. Wayne Thompson collection. Jeff Kurtzeman. Introduction | | | Book (edition) | | thirty-five scientific papers and discovered sixteen new mineral species, naming two of them after his co-authors...He has discovered and helped to describe several new Arizona 111inerals which appear in this volume. For...Mineralogy of the American Museum of Natural History, New York City; and Jeffery Kurtzeman, award-winning photograph~r...Cruz County. Bandy collection. Jeff Kurtzeman. Cerussite on aurichalcite. 79 mine, Gila County. Wayne...Kurtzeman. Wulfenite on mottramite. 79 mine, Gila County. Wayne Thompson collection. Jeff Kurtzeman. - |
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