 | | Journal (article/letter/editorial) | | Petrogenesis of Eclogite Inclusions in the Moses Rock Dyke, Utah, U.S.A. S. L. Harley and D. H. Green With...mineralogy of fifteen eclogites from the Moses Rock kimberlitic dyke, Utah, has demonstrated complexity in compositional...Petrogenese yon Eklogit-Einschliissen im Moses Rock Dyke, Utah, U. S. A. Eine detaillierte Studie der...Mineralogie von ftinfzehn Eklogiten vom Moses Rock Kimberlit-Dyke (Utah) mittels Mikrosonde zeigte komplexe...eclogitic inclusions in kimberlite from the Moses Rock dyke, Utah, U.S.A. The dyke, described b y McGetchin |  | | Journal (article/letter/editorial) | | and minette, because only in this area do the two rock types occur in direct association. Buell Park, the... 9 and 10, Fig. 1) I&ted Rock (at 8, Fig. 1) FR3: western end Black Rock (at 11, Fig. 1) BR4: central...the localities with a suspect age was resampled (rock TB7); based on the data in Table 1, we conclude...argon by phlogopite phenocrysts in the glass-rich rock. 3.2. Other age determinations on the Navajo rocks...Zilditloi field. There, Pohlmann [9] reported a whole rock age of 3 1 m.y. *, and R.F. Marvin, Isotope Geology |  | | Journal (article/letter/editorial) | | Sciences, Universityof Texas Austin, Texas 78712, USA Abstract. Eclogite inclusions from kimberlitic diatremes...microprobe traverses for a clinopyroxene-garnet-phengite-lawsonite-rutile assemblage show garnet zoning...Jdss (rim). Pyroxene cores are Cr-rich in another rock. Sharp compositional discontinuities and zoning...up to 6% Py in garnet and 15% Jd in pyroxene. Phengite is unzoned and contains 74% celadonite endmember...Geology,StanfordUniversity, Stanford, CA 94305, USA * Introduction The eclogite inclusions in the |  | | Report (chapter) | | crust and upper mantle xenoliths from Moses Rock Diatreme, Utah, has led to the discovery of evidence...fragment of the Farollan plate. Introduction Moses Rock Diatreme (Fig. 1) is a 6 km long fissure eruption...There are two contemporaneous Tertiary volcanic rock types occurring on the Colorado Plateau; a) Diatreme...microbreccia (SUM); a complex breccia of comminuted wall-rock and ultramafic material, held together by a fine...Park (Roden 1977) and Moses Rock (this study). The crystallization ages for these rock-types determined by |  | | Journal (article/letter/editorial) | | guyanaite in a Cr-omphacitite xenolith from Moses Rock diatreme, Utah† Daniel J. Schulze1,*, Roberta L. Flemming2...in a xenolith of Cr-rich omphacitite from the Moses Rock diatreme in the Navajo Volcanic Field of the...At the time of entrainment of the xenolith, the rock was undergoing prograde metamorphism, with guyanaite...xenolith from the Moses Rock diatreme in the Navajo Volcanic Field in southeast Utah, U.S.A. (Watson 1967)...Chromite is the only other accessory mineral in this rock that is significantly inhomogeneous, as the two |  | | Journal (article/letter/editorial) | | garnet-pyroxenite xenolith from the diatreme at Moses Rock, Utah, document storage and transport of water and...pyroxenes was caused by growth in chlorite-dominated rock. Derivation from garnet lherzolite is established...contacts between garnet peridotite and other mantle rock in response to fluid flow. Pressures _> 2.2 GPa...Sciences, University of Texas, Austin, TX 78712, USA Editorial responsibility: 1.S.E. Carmichael ciated...pyroxenite included in the Moses Rock diatreme on the Colorado Plateau. Moses Rock (37~ 110o44' W) is in southernmost |  | Laughlin, A.W., Aldrich, M.J., Shafiqullah, M., Husler, J. (1986) Tectonic implications of the age, composition, and orientation of lamprophyre dikes, Navajo volcanic field, Arizona. Earth and Planetary Science Letters, 76 (3) 361-374 doi:10.1016/0012-821x(86)90087-7 | Journal (article/letter/editorial) | | reported that minettes are the dominant igneous rock of the field, he also described monchiquites, vogesites...these rocks. N o work has been reported on the rarer rock types. We have recently sampled 10 dikes of the...Keyah oil field (Fig. 1) were also dated. Whole-rock major and trace element analyses were obtained on...the states of Arizona, New Mexico, Colorado, and Utah meet at a common point. The field is largely in...Mule Ear, 2 = Moses Rock, 3 = Garnet Ridge, 4 : Buell Park, 5 = Shiprock, 6 = Mitten Rock, 7 = The Beast |  | | Journal (article/letter/editorial) | | Petrol (1987) 96:212-224 9 Springer-Verlag 1987 Phengite geobarometry based on the limiting assemblage...of the Si content per formula unit (p.f.u.) of phengite, ideally KA12_ xMgx [All _ xSi3 +xO lo] (OH)2...Si (or x) with temperature. The most siliceous phengite with Si near 3.8 p.f.u, becomes stable near 20...The stability field of the critical assemblage phengite - K-feldspar - phlogopite - quartz ranges, in... when K-feldspar and phlogopite react to form phengite and a K, Mg-rich siliceous fluid. For the purpose |  | | Journal (article/letter/editorial) | | garnet--chloritoid--phengite--bearing micaschists, fine grained gneisses, widespread K-feldspar-phengite-bearing...intrusive origin has been demonstrated for some rock-volumes which mostly escaped the Alpine deformation...near the Condove village (Fig. 2). Here the bulk-rock chemistry, the preservation of magmatic structures...has discovered kyanite-chloritoid--Mg-chlorite--phengite--bearing silvery micaschists which are associated...and Lombardo, 1986 and references therein). The rock-types described by Vialon (1966) and by Chopin (1984) |  | | Journal (article/letter/editorial) | | Navajo volcanic field of the Colorado Plateau, SW USA, and implications for the mantle wedge during low-angle...Navajo volcanic field of the Colorado Plateau, SW USA, and implications for the mantle wedge during low-angle...Navajo volcanic field of the Colorado Plateau, SW USA, and implications for the mantle wedge during low-angle...Geosciences, University of Texas, Austin, TX 78712, USA Journal Pre-proof ABSTRACT The zonation of trace...of the of SUM-hosted garnets probably grew in rock eroded from the forearc wedge by low-angle -p |  | | Journal (article/letter/editorial) | | Abstract Jadeitite is a relatively rare, very tough rock composed predominantly of jadeite and typically...on 01/12/15. For personal use only. Jadeitite: a rock composed primarily of clinopyroxene with jadeite...jadeite composition (NaAlSi2 O6 ) Serpentinite: a rock composed principally of serpentine minerals (antigorite...formed from the hydration of peridotite Peridotite: a rock composed of >40% olivine and <10% plagioclase Metasomatism:...Metasomatism: a chemical replacement of a rock or mineral by another, usually by fluid-mediated mass transfer |  | | Journal (article/letter/editorial) | | shown that for 6 ~ M g value of total rock <85 the total rock chemical composition does not perceptibly...the Mg value of co-existing clinopyroxene (and phengite if it occurs) decreases from core to rim (for...Arizona eclogite X N e w Guinea I"1 California rock / I / ,, ,, / ..O 1~ / U.I ::~ !¢ I.J./ "...eclogite (2833) is an almandine + jadeite + quartz rock (2832, Green et al. 1968) which has a much higher...Na20 in 2832 compared with 6.7% NaaO in 2833). This rock indicates a higher minimum pressure at a given temperature |  | | Journal (article/letter/editorial) | | Copyright 0 1996 Elsevier Science Ltd Printed in the USA. All rights reserved 0016-7037/96 $15.00 + .OO Pergamon...85287-1404, USA ‘Department of Chemistry, Arizona State University, Tempe, AZ 85287-1604, USA (Received...was found to be stable from 5.5-11 GPa at 900°C. Phengite melting occurs between 1075- 1150°C at 7-8 GPa...K-hollandite are observed rather than phengite. The average phengite content of muscovite is positively...The maximum phengite content of stable muscovite appears to be 3.80-3.85 Si pfu. Most phengite examined |  | | Journal (article/letter/editorial) | | 94720, USA, and Earth Sciences Division, Lawrence Berkeley Laboratory, Berkeley, CA 94720, USA b Earth...Alamos National Laboratory, Los Alamos, N M 87545, USA Received March 3, 1992; revision accepted February...concentrated in the Four Corners region of Colorado, Utah, Arizona and New Mexico (Fig. 1). Samples for this...One of these, The Thumb, is a lamprophyre dike. Moses Rock, Garnet Ridge and Mule Ear are diatremes consisting...Plateau xenolith localities: ME = Mule Ear; MR = Moses Rock; GR = Garnet Ridge; TT = The Thumb. Heavy dark |  | | Journal (article/letter/editorial) | | Garnet Ridge along with a chemical analysis of the rock and of its constituent clinopyroxene and garnet...MOITTON 268 oo _ __ gqL_o_RAqo_ N E WM E X I C O UTAH ARIZONA o o .9 6o :o l + + +I . + e .o \ \ | r|...northeastern Arizona and adjacent parts of New Mexico, Utah, and colorado showing distribution of kimberlite...within northeastern Arizona and adjacent parts of Utah, New Mexico, and Colorado (Fig. 1). They have been...the eclogite inclusions found have other kinds of rock attached to them; hence, they provide no direct |  | Woodland, Alan B., Seitz, Hans-Michael, Altherr, Rainer, Marschall, Horst, Olker, Bettina, Ludwig, Thomas (2002) Li abundances in eclogite minerals: a clue to a crustal or mantle origin?. Contributions to Mineralogy and Petrology, 143 (5) 587-601 doi:10.1007/s00410-002-0363-8 | Journal (article/letter/editorial) | | which are similar to those of clinopyroxene, but phengite contains significantly less Li than clinopyroxene...characteristic constituents of high-P metamorphic ophiolitic rock associations or continental margin sequences (e...clinopyroxene, opx orthopyroxene, dia diamond, phe phengite, pg paragonite, am Amphibole, ky kyanite, rt rutile...quartz and may contain accessory rutile, kyanite, phengite or amphibole. Samples FG 1, FG 97-1 and FG 139...Representative mineral analyses and estimated whole-rock Li contents of eclogite and garnet clinopyroxenite |  | | Report (volume) | | Resources Summ. Water Resources Summary. Little Rock, Ark. Fayetteville, Arkansas Geological Commission...LIST Brigham Young Univ. Geology Studies Provo, Utah. Brigham Young University Geology Studies. British...California Acad. Sci. Occasional Paper of Sciences. San Francisco, Calif. California Acad. Sci. Proc. Francisco...Proceedings of the California Academy of Sciences. San California Dept. Water Resources Bull. Bulletin...California Div. Mines and Geology Bull. Bulletin. San Francisco, Calif. California Division of Mines and |  | | Book (volume) | | Research of Washington, Laboratory Union The San Carlos International Geological Association of...spectacular basalt nodule localities at Kilbourne Hole, San Carlos and Chino Valley. These trips, in particular...are truly techniques that can be apThese latter rock types are Progress has also been made accidental...the SullivanButtesLatite, ChinoValley, Yavapai County, Arizona, Richard J. Arculus and DouglasSmith ...velocities of a garnet lherzolite from its whole rock oxide composition has been devised and suc- mantle |  | | Journal (article/letter/editorial) | | analysis of Platinum-group elements in the whole-rock and separated Cr-spinel of 72-442 Modal compositiona...609 3.000 0.37 0.31 0.38 PGE contentsb Whole-rock Spinel (p.p.b.) Os Ir Ru Pt Pd Re 2.79/3.17 3...bLuguet et al. (2007), the data set for the whole-rock composition correspond to duplicate analyses; cLorand...microscale decompression products in ultrahigh-pressure phengite: HRTEM and AEM study and some petrological considerations...1981. A pyrope-spinel (alkremite) xenolith from Moses Rock Dike: first known North American occurrence. Am |  | | Report (volume) | | Abdei-Gawad, Monem; Silverstein, Joel. Displacement of San Andreas by active transverse faults [abs.]: EOS,...Toshihisa. Construction of continuum theories for rock by tensor testing [abs.]: Dissert. Abs. Internat...of rocks, Chap. 18 in Rock mechanics, theory and practice - 11th Symposium on Rock Mechanics, Berkeley...01602 Addicott, W. 0. Tertiary climatic change in San Joaquin basin, California Evidence from shallow-water... Warren 0. Tertiary paleoclimatic trends in the San Joaquin basin, California: U.S. Geol. Survey Prof |  | | Report (volume) | | contents sensu stricto (K) and prismatine of rock-forming (P) silicate minerals Chapter 9. Table... BE bh ora S A iis See 150 UWAToke ecah ee ne" San aio Salliet SE RUE ig1 De EMBO Semnt EEE aN ae arene...Ac sunccn sack ood cesccece tenn aaa cane syk ees Usa RUT TRO Re ete ret ee 182 BAK CIC sc cee ca thabucasats...BOROSILICATES AND BORON (EXCLUSIVE OF TOURMALINE) IN ROCK-FORMING IN METAMORPHIC MINERALS ENVIRONMENTS...437 Chemical.compositionsie:. 2205. 000.05. SAS San EUs ween ten 437 Mineral associations. «sain tnsanedesadecanances | | | Report (volume) | | Chapter 9. Table 17, pp. 461-462: B2O3 contents of rock-forming silicate minerals Chapter 9. Table 18, pp...BOROSILICATES (EXCLUSIVE OF TOURMALINE) AND BORON IN ROCK-FORMING MINERALS IN METAMORPHIC ENVIRONMENTS Introduction...wawayandaite and vistepite Boron as a Minor Constituent in Rock-forming Minerals Tectosilicates Layer silicates...Field relations Mineralogy and petrography Whole-rock chemistry Origin Historical review Premetamorphic...reason not to include B or B2O3 in tabulations of rock and mineral analyses accompanying geochemical, mineralogical |  | | Book | | science teachers at all levels, for collectors and "rock hounds," and for all who are curious about the minerals...spinel structure; quartz syenite, the name of a rock different from quartzbearing syenite. Although...end with -ite, it should be appreciated that many rock and fossil terms also have this suffix (see The...Publishing Scripta Company, Washington, DC 20005 USA. Acta Chemica Scandinavica, 1947-, Munksgaard, Noerre...Ohio 43214, USA. American Chemical Society, Journal, 1879-, Washington, DC 20036, USA. American Crystallographic |  | | Book | | Inc. (SME) 8307 Shaffer Parkway Littleton, CO, USA 80127 (303) 973-9550/(800) 763-3132 www.smenet.org...pipe 95 6.6 Floating reef of granitic country rock in the Sloan 2 kimberlite, Colorado 97 6.7 High...content of admixtures of alkaline elements in their rock-forming minerals 111 6.14 Types of diamond recognized...easily found. Diamonds occur in some of the rarest rock types on the surface of the earth, and when found...principal host rock, kimberlite, forms very small deposits. Being a relatively soft rock, kimberlite commonly |  | | Book | | Abstracts SPONSORS American Geophysical Union The San Carlos Apache Tribe The Navajo Tribe, Museum § Research...and fragments of crustal and local host country-rock. At Lattavaram the kimberlite is somewhat more durable...monticellite and pectolite were also noted. Spinels in this rock appear to be of two types - a minor number are rich...and Pb. The clinopyroxene, garnet and the whole-rock sample of a sheared garnet lherzolite(W 397) from...for a peridotite nodule in a recent volcanic rock from San Quintin, Baja California. The Rb(0.034 ppm) |
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