 | | Journal (article/letter/editorial) | | MosesRockdike,a kimberlite-bearing brecciadike in San Juan County,Utah. Associatedclinopyroxenes observedas inclusionswithin...kimberlite collected at the Moses Rock dike in San Juan County, Utah. This dike is one of a cluster...southeast Utah, which are known to contain and peridotire. It is our suggestionthat humite group rock and mineral...olivine, in addition to olivine, pyroxene,garnet, spinel, rutile, or other titanium-rich phases such as...TITANOCLINOI-IUMITE AT upper mantle at depths of 100 to 200 km MOSES ROCK DIKE [O'Hara, 1967; McGetchin and Silver, 1968] |  | | Journal (article/letter/editorial) | | KIMBERLITE AND RELATED ROCKS IN THE MOSES ROCK DIKE, SAN JUAN COUNTY, UTAHI Tnorr.qs R. McGrrcyrN, Department...asadena,Cal'iJornia9 1109 7'echnolo Alsrnacr The Moses Rock dike, a u'ell-exposed,kimberlite-bearing breccia...Permian Cutler Formation, in eastern Monument Valley, Utah. Petrographic, bulk chemical, and electron microprobe...between 0.5 and l percent another,2 to 5 percent), spinel, chrome-rich pyrope garnet, ilmenite-geikielite...grains in kimberlite are unlike associated dense rock fragments, except rare therzolite: (2) kimberlite |  | | Journal (article/letter/editorial) | | pages 741-745, I98l A pyrope-spinel(alkremite) xenolith from Moses Rock Dike: first known North American...pyropic garnet (Py 80 Gr 8 Alm 12)and black Cr-poor spinel (Mg/[Mg + Fe] : 0.84; Cr2O3: l0,tt.Vo) occur in...MosesRock Dike, San Juan County, Utah, a kimberlite pipe. Primary garnet and spinel are more mag.nesian...secondaryminslals that account for lessthan 5 percent of the rock. The presenceof ironbearing kornerupine in the secondaryminslnl...xenolith from Moses Rock Dike. a kimfsdils pipe on the southeasternedge of Monument Valley, Utah (McGsfshin |  | | Journal (article/letter/editorial) | | Geological Sciences, University of Texas, Austm, Texas USA Received September 25, 1975 Peridotite inclusions...Colorado Plateau. Most pcridotite inclusions are spinel lherzolites and harzburgites, or their partly hydrated...7% A1203), aluminous orthopyroxene (3 6% A1203), spinel, and olivine (near Fa9). Geothermometers based...primary crystallization. Low values, based on olivine-spinel and olivinc-clinopyroxene pairs, approach upper...temperatures before eruption. In rare samples, some spinel grains are rimmed by garnet while others are not |  | | 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 |  | | Journal (article/letter/editorial) | | Sciences, University of Texas, Austin, Texas 78712, USA Abstract. Crystal fragments of pyrope from diatremes...Plateau contain inclusions of olivine, pyroxene, spinel, chlorite, amphibole, chlorapatite, and dolomite...assemblages in the Plateau lithosphere. Garnets with spinel and orthopyroxene inclusions likely all were sampled...slabs and continental lithosphere. Xenoliths of spinel lherzolite, presumably from just below the Mohorovicic...northeastern Arizona and 37~ 109~ in southeastern Utah, respectively. The Garnet Ridge cluster, a group |  | | 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) | | 2 and more H2O and F than the kimberlites in the USA and Yakutia in which this mineral was found previously...kimberlite bodies in the USA— the Buell Park pipe, Arizona [1] and the Moses Rock dike, Utah [9], and in three...show the pyrope content to be 3.6 kg per ton of rock. The pyrope grain size is 0.5-6 mm, the color varies...kelyphitic rims consisting of phlogopite, chrome spinel, chlorite and The kimberlite rocks of West Africa...bulges on dikes, and very small stringers [7]. The rock at a depth of 83 m, where the titanoclinohumite |  | | Journal (article/letter/editorial) | | Copyright 0 1997Elsevier Science Ltd Printed in the USA. All rights reserved 0016-7037/97$17.00 + .OO Pergamon...xenoliths from the Navajo Volcanic Field, southwestern USA PATRICK D. MAITIE,*.’ KENT C. CONDIE,“* JANE SELVERSTONE...Science, New Mexico Tech, Socorro, New Mexico 87801, USA *Department of Earth and Planetary Sciences, University...University of New Mexico, Albuquerque, New Mexico 87131, USA (Received November 19, 1996; accepted in revised...represented by xenolith Group IV and by xenoliths from the San Francisco Volcanic Field, occurs only northwest of |  | | Journal (article/letter/editorial) | | mantle which was warm but still below sillicate-rock melting temperatures. 2. Pyropes and inclusions...reduce the depth somewhat, to near or within the spinel field. So, while a P - T assignment is tentative...emplacement of a kimberlite-bearing breccia dike, San Juan County,Utah, Ph.D. Thesis, Calif. Inst. Tech. (1968)...kimberlite and related rocks in the Moses Rock dike, San Juan County, Utah, Amer. Mineral 55 (1970) 1738....relations in the Cane Valley diatreme, San Juan County, Utah, Jour. Geophy. Res. (in press). [5 ] P. |  | | 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) | | Sciences, Universityof Texas Austin, Texas 78712, USA Abstract. Eclogite inclusions from kimberlitic diatremes...Jdss (rim). Pyroxene cores are Cr-rich in another rock. Sharp compositional discontinuities and zoning...Geology,StanfordUniversity, Stanford, CA 94305, USA * Introduction The eclogite inclusions in the...other types of rock fragments in a serpentine-rich matrix in the Garnet Ridge, Moses Rock, and Mule Ear...northern group of Plateau diatremes near the Arizona-Utah border at about 37 ~ N, 109 ~ 45"W (Watson, 1967) |  | | Journal (article/letter/editorial) | | Upper Mantle in the Buell Park Kimberlite, Arizona, USA Ken-ichiro Aoki 1, Kiyoshi Fujino 2 and Masaki...Ruslovaya pipe in Yakutia, Siberia [7, 8] and Moses Rock dike, Utah [9, 10], titanochondrodite in kimberlite...Plateau in northeastern Arizona and in areas adjoining Utah and New Mexico. The geology and petrography of these...titanoclinohumite from kimberlite at the Moses Rock dike, Utah, 140 km NNW of the Buell Park occurrence...Wiik [-6] 4 = Titanoclinohumite from the Moses Rock dike, Utah [-10] a b ~ Calculated from theoretical |  | | Journal (article/letter/editorial) | | 1329 Arizona Economic geology Aluminum, Maricopa county, Wickenberg (Sheridan, Michael F , et al.) tt-t2...(Mclean, W. John, er a/.) 7-E 1103 Hemihedrite,Pinal county, Florencemine, Maricopacounty, Wickenburg,Rat Tail...a/.) 7-8 1088 Kinoite, SantaRita mountains,Pima county (Anthony, John W., er a/.) 5-6 7O9 Phoenicochroite...and steam in Sl-units 9'10 1822 (Schmidt, Ernst.) Rock and mineral analysis 7-E 1453 (Maxwell, J. A.) ...Barros, er a/.) 1.2 224 Breccia Intrusive Utah, San Juan county, MosesRock dike, kimberlite (McGetchin, |  | | Journal (article/letter/editorial) | | "Four Corners" region where New Mexico, Arizona, Utah, and Colorado abut, the boundaries of the Navajo...electron microprobe, as described in 70 / // -":', UTAH / 112° lfl" 110o pO~9~ "~/ ': I / THE , THUMB...minettes (Agathla, The Thumb, Buell Park, and Black Rock) most comparable to the Mujeres mafic minettes....reaction with KI and KIO 3 [22]. Water analyses of rock powders represent total water liberated between...<< 1% rather than < 1% to 8%) and its abundant spinel-peridotite xenoliths. This central sodic plug has |  | 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) | | 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) | | Sciences, University of Texas, Austin, TX 78713, USA Abstract. Mineral associations and compositions...assemblages include: pargasite-magnesite-dolomite-apatite-spinel; pargasite-dolomite-Ba phlogopite (with 10% BaO);...olivine-dolomitespinel; edenite-chlorite; and olivine-ilmenite-spinel. Magnesite and chlorite are present also as monomineralic...xenolith minerals. Amphibole-garnet and olivine-spinel equilibration temperatures are in the range 500-700... titanoclinohumite, chlorite, Mg-ilmenite, and spinel (McGetchin and Silver 1970; McGetchin and Besancon |  | | Report (issue) | | CALITI ES OF UTAH by Kenneth C. Bullock UTAH GEOLOGICAL AND MINERAL SURVEY a division of the UTAH DEPARTMENT...JANUARY 1981 MINERALS AND MINERAL LOCALITIES OF UTAH by Kenneth C. Bullock Nature displays her most...State of Utah. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 County Listings.... . . . . . . 1 Chapter II. Mining Districts of Utah . . . . . . . . . . . . . . . . . . . . . . . ..... . . . . . . . 4 Mineral Localities Listed by County . . . . . . . . . . . . . . . . . . . . . . . |  | Condie, Kent C., Cox, Jessica, O’Reilly, Suzanne Y., Griffin, W.L., Kerrich, Robert (2004) Distribution of high field strength and rare earth elements in mantle and lower crustal xenoliths from the Southwestern United States: The role of grain-boundary phases. Geochimica et Cosmochimica Acta, 68 (19) 3919-3942 doi:10.1016/j.gca.2004.03.025 | Journal (article/letter/editorial) | | 2004 Copyright © 2004 Elsevier Ltd Printed in the USA. All rights reserved 0016-7037/04 $30.00 ⫹ .00 Pergamon...Institute of Mining and Technology, Socorro, NM 87801, USA GEMOC ARC National Key Centre, Department of Earth...accepted in revised form March 25, 2004) Abstract—Spinel lherzolite and harzburgite xenoliths from the Basin...grain-boundary phases. To interpret these ratios in whole-rock analyses, it is critical to understand the timing...grain boundary phases formed to interpret whole-rock trace element distributions. 1. INTRODUCTION Incompatible |  | | Journal (article/letter/editorial) | | DIATREME, A KIMBERLITE PIPE IN NORTHERN LARIMER COUNTY, COLORADO M. E. McCerwwr, ColoradoState Unittersity...sourceof building materials, soil additives, and rock collectors' curios. The pipe penetrates granite...vertical joints. v i. ETROGRAPIIY Serpentirrized rock in the Sloan diatreme is very similar to ultramafic...1954; Shoemaker el ol., tr962; Watson, K. D., 1967), Utah (McGetchin and Silver, 1970), Kansas (Byrne el a1...kimberlite is a light- to dark-green or gray-green rock that typically is decomposed at the surface. The |  | | Journal (article/letter/editorial) | | inclusions in pyrope crystals from Garnet Ridge, Arizona, USA: implications for processes in the upper mantle ...addition to previously reported inclusions of rutile, spinel and ilmenite, we discovered crichtonite series...carbonate, amphibole, phlogopite, chlorapatite, spinel and rutile are interpreted to have crystallized...Sciences, University of Michigan, Ann Arbor, MI 48109, USA; Fax: 734-763-4690; E-mail: liping@umich.edu Editorial... These garnets are more pyropic than garnet in spinel lherzolite from the Green Knob diatremes (Ca:Fe:Mg |  | | Journal (article/letter/editorial) | | Geology, UniÕersity of Georgia, Athens, GA 30602, USA Department of Geology and Geophysics, Woods Hole...Hole Oceanographic Institute, Woods Hole, MA 02543, USA Received 8 March 1999; accepted 13 August 1999 Abstract...Proterozoic crust of the Colorado Plateau, southwestern USA, was intruded in the mid-Tertiary by hypabyssal minettes...al., 1987. is to understand the distribution of rock types in an example of Proterozoic mantle lithosphere...the Navajo volcanic field contain xenoliths of spinel and garnet peridotite, eclogite, granulite and |  | | Journal (article/letter/editorial) | | relativelycommon in the Stockdalekimberlitepipe, Kansas.Two rock types in particular, a pyroxenite and a metagabbro...Most striking is the replacementof green aluminous spinel by sapphirine, (Mgr rrFeo46A14 us)vr(A14 6?Si1...Severaligneous bodies intrude Permian sediments in Riley County, east-central Kansas. Brookins (1970) has describedthese...eclositic rocks. berlite diatremesthat occur in Riley County, Kansas has been presented by Brookins (1970)....diatremes are filled with dark to light green brecciated rock consisting of serpentinizedolivine, pyroxene' partially |  | | Journal (article/letter/editorial) | | amphibole, Ba-K phlogopite, chlorapatite, and spinel. Such composite inclusions have been interpreted...formed from the transition of spinel to garnet peridotite (i.e., spinel + pyroxene = garnet + olivine)...garnet host; Spl = spinel. Amphibole, chlorapatite, dolomite, magnesite, and spinel are mineral constitutions...Deer, W.A., Howie, R.A., and Zussman, J. (1982) Rock-Forming Minerals: Orthosilicates. Second Edition...kimberlite and related rocks in the Moses Rock dike, San Juan County, Utah. American Mineralogist, 55, 1738–1771 |
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