 | | Journal (article/letter/editorial) | | accessory minerals, intergrown with kosmochlor-rich omphacite, zincian chromite, eskolaite, and carmichaelite...chromite (cht). These phases are set in a matrix of omphacite that appears very dark gray in this image. The...(11) Carmichaelite (5) Eskolaite (4) Omphacite Omphacite Omphacite s.d.b s.d. s.d. s.d. s.d. highest...calculated by charge balance for chromite and omphacite. e nd = not determined. 1279 SCHULZE ET AL...kosmochlor–NaCrSi2O6). Table 1 includes analyses of omphacite with the highest Cr value, and the two Cr-poor |  | | Journal (article/letter/editorial) | | lawsonite coexisting with omphacite occurs as both inclusions in garnet and as porphyroblasts, the latter...conditions estimated from lawsonite-phengite-omphacite-garnet assemblages were ca 1.6 GPa at a temperature...stability field of lawsonite coexisting with omphacite (Schliestedt, 1990). There are five records of...to the discovery of coexisting lawsonite and omphacite in one fist-size sample. This sample (DR1) was...Lawlawsonite, zoi- zoisite, amp- amphibole, omp- omphacite, grtgarnet, sol- solidus. Thick dashed line is |  | | Journal (article/letter/editorial) | | and irregular variation in grossular content of garnet and acmite, jadeite and diopside-hedenbergite content...between garnet and clinopyroxene. Zoning patterns of increasing XMg in both clinopyroxene and garnet, and...10 kbar for compositions of rims of coexisting garnet and clinopyroxene. Two samples contain pyrope-rich...equilibration of both primary omphacite-pyrope and secondary omphacite-almandine/pyrope-chlorite are...interpretation of these samples as evidence of garnet growth during prograde metamorphism is precluded |  | | Report (chapter) | | temperature/high pressure, in situ hydration of pyroxene and garnet granulites in isolated parts of the lower crust...Colorado Plateau. It runs parallel to the Comb Ridge monocline. The diatreme was mapped in detail and...groundmass containing larger grains of olivine, garnet, chrome-diopside, enstatite, titanoclinohumite...interpreted as the partial melt from a phlogopite rich garnet lherzolite in a volatile rich upper mantle (Roden...Bluff I ~'1 MR Moses Rock ME- Mule Ear GR - Garnet Ridge FIG. I. Location of Moses Rock dyke and nei |  | | Journal (article/letter/editorial) | | Sciences, Universityof Texas Austin, Texas 78712, USA Abstract. Eclogite inclusions from kimberlitic diatremes...the Colorado Plateau contain intricately zoned garnet and pyroxene and unusual textures. Detailed electron...traverses for a clinopyroxene-garnet-phengite-lawsonite-rutile assemblage show garnet zoning from Alm69GrzlPyt0...discontinuities and zoning reversals are preserved in garnet and pyroxene. Oscillatory zoning occurs in both...10-20 p.m scale, with variations of up to 6% Py in garnet and 15% Jd in pyroxene. Phengite is unzoned and |  | | Journal (article/letter/editorial) | | December 1994 Abstract Three chlorite-rich and one garnet-pyroxenite xenolith from the diatreme at Moses...metasomatism in the mantle within the stability field of garnet peridotite, probably at depths of at least 75 kin...growth in chlorite-dominated rock. Derivation from garnet lherzolite is established by relict pyrope (Py...synthetic 10-A phase. Garnet pyroxenite has a retrograde assemblage of chlorite-garnet-omphacite. The chlorite-rich...chlorite-rich rocks formed at contacts between garnet peridotite and other mantle rock in response to fluid |  | TSUJIMORI, T, SISSON, V, LIOU, J, HARLOW, G, SORENSEN, S (2006) Very-low-temperature record of the subduction process: A review of worldwide lawsonite eclogites. Lithos, 92 (3) 609-624 doi:10.1016/j.lithos.2006.03.054 | Journal (article/letter/editorial) | | Sciences, Stanford University, Stanford, CA 94305-2115, USA b Department of Earth and Planetary Sciences, American...West at 79th Street, New York, New York 10024-5192, USA Department of Mineral Sciences, NHB-119, National...Smithsonian Institution, Washington, DC 20560-0119, USA Received 29 May 2005; accepted 30 March 2006 Available...assemblages (garnet + omphacite + lawsonite + rutile) typically occur in prograde-zoned garnet porphyroblasts...eclogites are known. Using inclusion assemblages in garnet, lawsonite eclogites can be classified into two |  | Mottana, Annibale, Murata, Takatoshi, Wu, Ziyu, Marcelli, Augusto, Paris, Eleonora (1997) The local structure of Ca-Na pyroxenes. I. XANES study at the Na K-edge. Physics and Chemistry of Minerals, 24 (7) 500-509 doi:10.1007/s002690050065 | Journal (article/letter/editorial) | | and M 21 eight-fold coordinated sites of the omphacite structure. A weak, sometimes poorly resolved peak...diagnostic and discriminates C- from P-pyroxenes. The Garnet Ridge C 2yc impure jadeite exhibits a spectrum which...is intermediate between those of jadeite and omphacite. The Hedin-Lundqvist potential proves best for...local environments across the entire diopside-(omphacite)-jadeite join. Information about shortrange-order...discovered the primitive symmetry in the Tiburon omphacite (composition Di42Jd38Hd10Ae10 ) and solved its |  | | Book (edition) | | found in Arizona. In the twelve years since then 61 more minerals have been reported from Arizona, a number...change. This checklist is an effort to bring the Arizona mineral list up to date. Of the 61 minerals added...locality being in Arizona. They are: bechererite from the Tonopah-Belmont mine, Maricopa County; ca1cioaravaipaite...Grand Reef mine, Graham County; carmichaelite from Gamet Ridge, Apache County; shannonite from the Grand...Grand Reef mine, Graham County; wupatkiite from near Gray Mountain, Coconino County, and grandviewite from |  | Whitney, Donna L., Fornash, Katherine F., Kang, Patricia, Ghent, Edward D., Martin, Laure, Okay, Aral I., Vitale Brovarone, Alberto (2020) Lawsonite composition and zoning as tracers of subduction processes: A global review. Lithos, 370. 105636pp. doi:10.1016/j.lithos.2020.105636 | Journal (article/letter/editorial) | | Minneapolis MN 55455 USA 2 Department of Geological Sciences, Ohio University, Athens, OH 45701 USA 3 Department...localities in which fresh lawsonite coexists with garnet + omphacite in the rock matrix, as well as the composition...in which lawsonite occurs only as inclusions in garnet in eclogite-facies rocks that lack matrix lawsonite...Minneapolis MN 55455 USA Department of Geological Sciences, Ohio University, Athens, OH 45701 USA 3 Department...which fresh lawsonite coexists with garnet + Journal Pre-proof omphacite in the rock matrix, as well as |  | | Journal (article/letter/editorial) | | Contr. Mineral. and Petrol. 15, 1--23 (1967) Omphacite in Californian Metamorphic Rocks E. J. EssnsE...aragonite indicates that pressures necessary to form omphacite are reasonably close to those calculated from...the Pacific margin glaucophane schist belts, omphacite has been described mainly in eelogites. Many workers...unstable in the glaucophane schist facies, t~ecently omphacite has been found veining glaueophane schists, amphibolitcs...greenstones and metascdiments. The stability of both omphacite and eelogite in the glaueophanc schist facies |  | | Journal (article/letter/editorial) | | INCLUSIONS IN KIMBERLITE PIPES AT GARNET RIDGE, NORTHEASTERN ARIZONA K'D'wers'-'l?';'ft',7:,':**,:;::1...inclusions from kimberlite pipes at Garnet Ridge, northeastern Arizona, is essentially diopsidic jadeite...appreciable proportion of acmite. The coexisting garnet is pyropic almandine (62 to 70 percent Fe3 AIzSiaOrzand...of grossularite. Chemically, the eciogite at Garnet Ridge differs markedly from those found elsewhere...pyroxene and garnet in eclogite from Garnet Ridge resemble those of pyroxene and garnet in eclogite occurring |  | Page, F. Zeb, Armstrong, Lora S., Essene, Eric J., Mukasa, Samuel B. (2007) Prograde and retrograde history of the Junction School eclogite, California, and an evaluation of garnet–phengite–clinopyroxene thermobarometry. Contributions to Mineralogy and Petrology, 153 (5) 533-555 doi:10.1007/s00410-006-0161-9 | Journal (article/letter/editorial) | | School eclogite, California, and an evaluation of garnet–phengite–clinopyroxene thermobarometry F. Zeb Page...Quantitative thermobarometry of inclusions in zoned garnet from a Franciscan eclogite block record a counter-clockwise...P–T path from blueschist to eclogite and back. Garnet retains prograde zoning from inclusion-rich Alm52Grs30Pyp6Sps12...the garnet–phengite– omphacite thermobarometer yields conditions of 7–15 kbar, 400–500C (garnet cores)... in agreement with clinozoisite–sphene– rutile–garnet–quartz barometry. These pressures are ~10–15 kbar |  | | Journal (article/letter/editorial) | | American Museum of Natural History, New York, NY, USA Abstract: Jadeitite-bearing serpentinite-matrix...Dominican Republic), circum-Pacific (Japan, Western USA, and Papua New Guinea), Alpine-Himalayan (Italy,...xenoliths in kimberlitic pipes in the Colorado Plateau (USA). The oldest occurrences of jadeitite are Early Paleozoic...indicative of HP-LT conditions, including garnet amphibolite, omphacite-taramite-zoisite rock, albitite, phengiticmuscovite...C and P¼ 2.0–2.3 GPa (Tsujimori et al., 2004). Garnet amphibolite, which is found 100 km east of the |  | | Book (edition) | | MINERALOGY OF ARIZONA • Wu!fenite. Red Cloud mine, Si/County, Arizona...Tucson .. The University of Arizona Press Copyright © 1977, r982, 1995 Arizona Board of Regents All rights...Congress Cataloging-in-Publication Data Mineralogy of Arizona/ John W. Anthony ... [et al.]; Wendell E. Wilson...0-8165-1555-7 (pbk. : alk. paper) 1. Minerals-Arizona. I. Anthony, John W (John Williams), 1920-. QE375...HISTORY OF ARIZONA MINING AND MINERALOGY The Prehistoric Period 20 Arizona Under Spanish Rule Arizona as a |  | | Book (edition) | | MINERALOGY OF ARIZONA,FOURTHEDITION V e a o_ of li rizo TI RAYMOND W. GRANT RONALD B. GIBBS...CALLAHAN THE UNIVERSITY OF ARIZONA PRESS TUCSON f -- The University of Arizona Press www.uapress.arizona...arizona.edu © 2022 by The Arizona Board of Regents All rights reserYed. Published 2022 ISBN-13: 978-0-8165-4358-8...Co\·er photo: \\ 7 ulfenite, Rowley Mine, Maricopa County, 4 cm high specimen, Evan and Melissa Jones Collection...Grant, Raymond \X'.,author. Title: Mineralogy of Arizona/ Raymond W. Grant [and 4 others] ; maps and illustrations |  | | Journal (article/letter/editorial) | | clinopyroxene (approx. Di~2Jd2~mol%) and pyropic garnet (approx. Py47AlasGrl~mol%) are the predominant...provincen a m e l y , a t G a r n e t R i d g e (Arizona) a n d Green K n o b s (New Mexico) ( O ' H a r...argillaceous and calcareous sediments in Riley County, east-central Kansas (Fig. 1). The diatremes are... orthopyroxene, partially kclyphitised pyropic garnet and ch]oritised phlogopite, together with minor...map of kimberlite diatremes that occur in Riley County, Kansas 62 H.O.A. Meyer and D. G. Brookins: | | | Book (edition) | | OF ARIZONA Wulfenite. Red Cloud mine, Silver district, Trigo Mountains, La Paz County, Arizona. Smithsonian...by Ed Over. Chip Clark photo. MINERALOGY OF ARIZONA THIRD EDITION W. Anthony Joh n Sidney A. Williams...of Arizona Press / Tucson The University of Arizona Press Copyright © 1977, 1982, 1995 Arizona Board...Congress Cataloging-in-Publication Data Mineralogy of Arizona / John W. Anthony . . [et al.] ;Wendell E. Wilson...0-8165-1555-7 (pbk. : alk. paper) 1. Minerals—Arizona. QE375-5-A6M56 I. Anthony, John W. (John Williams) |  | | Journal (article/letter/editorial) | | examples of the eclogitic rocks and their constituent garnet and pyroxene have been chemically analysed. one...association of very jadeite-rich pyroxene with almandine garnet is unique among eclogitic rocks. The second rock...characteristic eclogite mineralogv of pyrope-almandine garnet+omphacite * quartz forms over l wide range of p, 7 conditions...COLOMBIA 'I'he outer Iocally an important phase. The garnet has a deep red core and paler margin. one-fourth...Refractive index and the unit cell dimension of the garnet also vary from rim to core (Table 2). Some pyroxene |  | | Journal (article/letter/editorial) | | GarnetRidge,Arizona ANNA T. GAVASCI AND PAUL F. Kr. RR Abstract The uraniumoccurrenceat Garnet Ridge, Arizona...concluded GAntlET RXD•E is located in northeastern Arizona, near the Utah State line, 35 miles northeast of...miles west of Tes Ne Iha, a trading post along Arizona Highway 64, at Chinle majorityof the garnetsfoundin...garnetsfor ornamentalpurposes pyroxene-plagioclase,or garnet-hornblende-plagioclase gneisses,which occur as...geologicalinterpreta- authors suggest a deep source for some garnet xenocrysts,probably in the upper mantle. tion rather |  | | Journal (article/letter/editorial) | | zoned idiomorphic Mg-poor (<0.8 wt% MgO) garnet + omphacite + lawsonite + chlorite + titanite. A local...with partial resorption of omphacite and garnet is locally observed. Garnet porphyroblasts in the massive...with a Mn-rich core. In the inter-pillow matrix garnet is less manganiferous, and shows a mutual variation...and Fe with Fe enrichment toward the rim. Some garnet from this rock type shows complex zoning patterns...coalescence of several smaller crystallites. Matrix omphacite in both rock types is zoned with a rimward increase |  | | Journal (article/letter/editorial) | | Pressure Dependence of F e - M g Partitioning Between Garnet and Phengite, With Particular Reference to Eclogites...This Kv-geothermometer has been applied to natural garnet-phengite pairs to determine P - T-conditions of...of elements, particularly Fe z § and Mg, between garnet and a coexisting ferromagnesian phase has been...and Green, 1974). (b) By using published data for garnet and coexisting ferromagnesian phase pairs of rocks...some extent by neighbouring clinopyroxene grains. Garnet grains could be optically seen and were therefore |  | | Journal (article/letter/editorial) | | Stanford University, Stanford, CA, 94305-2115, USA ABSTRACT Lawsonite-bearing metamorphic/metasomatic...for any metabasite in which almandine-rich garnet and omphacite are present as an equilibrium assemblage...plagioclase-free rock composed of >75 vol% of omphacite + garnet (Desmons & Smulikowski, 2007). Throughout...green – conventional thermobarometry, orange – garnet isopleths of P–T pseudosection. For comparison...Clarke, 2011). In general, rigid minerals such as garnet are the best mineral containers; in fact, lawsonite |  | Altherr, Rainer, Topuz, Gültekin, Marschall, Horst, Zack, Thomas, Ludwig, Thomas (2004) Evolution of a tourmaline-bearing lawsonite eclogite from the Elekdağ area (Central Pontides, N Turkey): evidence for infiltration of slab-derived B-rich fluids during exhumation. Contributions to Mineralogy and Petrology, 148 (4) 409-425 doi:10.1007/s00410-004-0611-1 | Journal (article/letter/editorial) | | poikiloblastic garnet from a well-preserved eclogite block are lawsonite, epidote/clinozoisite, omphacite, rutile...inclusions in omphacite. These inclusion assemblages document the transition from a garnet-lawsonite-epidote-bearing...lawsonite eclogite with the peak assemblage garnet + omphacite I + lawsonite + rutile. Peak metamorphic...exchange between garnet and omphacite and the coexistence of lawsonite + omphacite + rutile. During exhumation...same time, omphacite I (XJd=0.24–0.44) became unstable and partially replaced by omphacite II characterized |  | Wang, Liping, Rouse, Roland C., Essene, Eric J., Peacor, Donald R., Zhang, Youxue (2000) Carmichaelite, a new hydroxyl-bearing titanate from Garnet Ridge, Arizona. American Mineralogist, 85 (5) 792-800 doi:10.2138/am-2000-5-620 | Journal (article/letter/editorial) | | Carmichaelite, a new hydroxyl-bearing titanate from Garnet Ridge, Arizona LIPING WANG,* ROLAND C. ROUSE, ERIC J. ESSENE...titanate from Garnet Ridge, an ultramafic diatreme on the Colorado Plateau in Arizona. It is named in...crystals and their included minerals from Garnet Ridge, Arizona, we found a titanate that appeared to be...number NMNH 172011.) OCCURRENCE AND PETROGENESIS Garnet Ridge is one of seven localities for ultramafic diatremes...related xenocrysts such as olivine, pyroxene, and garnet. Carmichaelite occurs as inclusions in three red |
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