 | | Journal (article/letter/editorial) | | of 34 m.y. may contain excess argon. Published apatite fission-track ages for inclusions in the kimberlitic...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 |  | | 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, |  | 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) | | 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...bulges on dikes, and very small stringers [7]. The rock at a depth of 83 m, where the titanoclinohumite...the first generation constitutes about 40% of the rock volume. Its partially serpentinized grains (up to |  | | 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...chrome-diopside, enstatite, titanoclinohumite, chlorite and apatite, but lacking the typical minerals rich in incompatible |  | | 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 . . . . . . . . . . . . . . . . . . . . . . . |  | | 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...enstatite, pyrope, diopside, ilmenite, chromite, apatite and Na-rich tremolite in decreasing order of abundance...titanoclinohumite from kimberlite at the Moses Rock dike, Utah, 140 km NNW of the Buell Park occurrence |  | | Journal (article/letter/editorial) | | Geological Sciences, University of Texas, Austm, Texas USA Received September 25, 1975 Peridotite inclusions...flows of minette, a biotite-pyroxene-alkali feldspar rock, are c o m m o n near the pair o f diatremes and...within Buell Park [4]. Fission track ages o f apatite in inclusions indicate that Buell Park and three...studied systematically at only one diatreme, Moses Rock [2,10]. The inclusion suite at Green Knob is...is distinctly different from that at Moses Rock; in particular, spinel peridotite is more c o m m o n at |  | | Journal (article/letter/editorial) | | AJ-20, University of Washington, Seattle, WA 98195, USA Abstract. Petrographic cvidence is prcsentcd for...known for m a n y decades as a vein and accessory rock-forming mineral in antigorite serpentinites of the...as a fragment in the kimberlitic diatreme of Moses Rock on the Colorado Plateau. This mode of occurrence...Park (Allen and Balk 1954; Aoki et al. 1976), Moses Rock (McGetchin and Silver 1970), and Green Knobs...Malenco Serpentinite is a schistose antigorite-rich rock that equilibrated under high Greenschist Facies |  | | 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) | | 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...fayalite (Fe), scapolite USNM R6600-1 (CI), Durango apatite (F), and barium-silicate glass (Ba). Data were...only by the presence of single small crystals of apatite and of mica rich in Ba but also by the Ba content...kimberlite (Hervig and Smith 1981; Schulze 1985) and apatite-rich xenoliths that may have crystallized from |  | | 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...ŽZrTi 2 O6 ., crichtonite-series minerals and apatite, and are interpreted to be part of a spinel andror |  | | Report (volume) | | GEOLOGY OF THE SAN JUAN OIL FIELD, UTAH. By E. G. WOODRUFF. INTRODUCTION. LOCATION AND FIELD WORK. The...lies in southeastern Utah in the valley of the San Juan Kiver and in the county of the same name. Goodridge...who unhesitatingly offered every 76 SAN JUAN OIL FIELD, UTAH. 77 possible assistance, especially...reconnaissance along the San Juan River valley from Mancos, Colo., to the junction of San Juan and Colorado rivers...the formations with the strata exposed in the San Juan Mountains, but gave little attention to structure |  | | Journal (article/letter/editorial) | | Brookins, D. G. Metastibnite from The Geysers, Sonoma county, California Brown, F. H. Zoning in some volcanic...Chile Clark, Alan H. Tungstenian wulfenites, Mina San Samuel, Cachiyuyo de Llampos, Chile Clark, Joan R...beta-Be(OH)1, from the Rode Ranch pegmatite' Llano county, Texas Einaudi. Marco T. An iron-sensitive stain...rich minerals frorn rhyolite in the Thomas range, Utah Frondet, Clifford. Colloform hydrothermal muscovite...u d y of pentlandite Huang, W. H. Dissolution of rock-forming silicate minerals in organic acids; simulated |  | | Book (volume) | | A Location Guide for Rock Hounds in the United States SOUTH DAKOTA This northwestern Great Plains state...beds, excavations, etc.Selenite roses. BRULE COUNTY AREA: in the Oacoma zone of the Pierre Fm. On Elm...gray Barite rosette up to 5 or 6 inches. CAMPBELL COUNTY MOUND CITY, W to the Missouri R., regional hillsides...gravels, etc.petrified wood, wood opal. CORSON COUNTY LITTLE EAGLE: area ridges, slopes, stream beds...438 A Location Guide for Rock Hounds in the United States CUSTER COUNTY AREA: The November Mine, 1 |  | | Journal (article/letter/editorial) | | Institute of Technology, Cambridge, Massachusetts 02139, USA Abstract. Trace element evidence indicates that...the minettes requires that an accessory mineral, apatite, dominated the geochemistry of the REE during fractionation...and the presence of apatite in cognate inclusions are also consistent with apatite fractionation. Higher...most likely a mixture of comminuted mantle wall rock and crustal material; there is no evidence for an...peridotite. The important role of phlogopite and apatite in the differentiation of the minettes supports |  | 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...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...Canyon volcanic field; Navajo volcanic field: MR, Moses Rock; Th, The Thumb; GN, Green Knobs; RP, Rio Puerco |  | Best, Myron G., Barr, Deborah L., Christiansen, Eric H., Gromme, Sherman, Deino, Alan L., Tingey, David G. (2009) The Great Basin Altiplano during the middle Cenozoic ignimbrite flareup: insights from volcanic rocks. International Geology Review, 51 (7) 589-633 doi:10.1080/00206810902867690 | Journal (article/letter/editorial) | | University, Provo, UT 84602-4606, USA 420 Chaucer Street, Palo Alto, CA 94301, USA; cBerkeley Geochronology Center...Center, Berkeley, CA 94709, USA b (Accepted 26 February 2009) Uncertainty surrounds the fate of the...plateau in what is now the Great Basin in western Utah and Nevada, which resulted from the Mesozoic and...topography. This high terrain in SE Nevada and SW Utah was progressively smoothed as successive ignimbrite...area that became the Great Basin of the western USA ranks as one of the most voluminous productions of |  | | Journal (article/letter/editorial) | | continuous with calcite of the kimberlite matrix wall rock, by elongated phenocrystic phlogopite with sharp...potentially indicates the dilation direction of the host rock. Fibers may link points that were once in contact...J. Basson, G. Viola / Lithos 76 (2004) 283–297 rock (Figs. 2 and 3) and whether or not crystals are...continuity with host rock minerals and/or are compositionally different from host rock minerals and separated...dyke arrays studies here. K = kimberlite; HR = host rock; FC = fracture cleavage; CV = fibrous calcite veining |  | | Journal (article/letter/editorial) | | Y. 10019 1ST VICE-PRESIDENT Ted Richard i 3815 San Pedro T a m p a , Fla. 33609 GENERAL SHOW C H A...Miner Basin. 9. Jewelry and Silver Service. 10. Utah Trips and Treasures. 11. One Hundred Miles of Agate...Gem, Lapidary and Mineral Society of Montgomery County, Rockville, comes announcement of its Annual Spring...Ouskouian of New York ROCKS AND MINERALS land Rock Hounds, Rockville Center, described a cold field...Island Rock Hounds was "Gadget NEW YORK Night". Members were asked to bring The Chautauqua County Gem and |  | | Report (volume) | | sandstone member__________________________ Organ Rock tongue____________________________________ De Chelly...Forest member________________________________ Owl Rock member_____________________________________ Church...---------------------------------------~ Organ Rock anticline____ ______ _______ ___ _______ ________...sections of the Monument No. 2 mine area, Apache County. 1. Index map of parts of Apache and Navajo Counties________...Peak, a volcanic neck of nearly black lamprophyric rock that rises about 1,400 feet above the valley flpor |  | | Journal (article/letter/editorial) | | these elements are derived mainly from F-rich apatite in the mantle, and that wh/tlockite is not present...gabbros either to substantial C1 in the source apatite, or to C! from invading solutions, or both: three...by incorporation of Cl-bearing mica and F-rich apatite during melting of peridotites, but compositional...chlorine and fluorine analyses of mica, amphibole and apatite from deep-seated environments. AIJ specimens were...bulk mineral separates of amphibole, mica and apatite from alkali ba~alt and kimberlite and their incorporated |  | | Journal (article/letter/editorial) | | gradations to rocks with amphibole or phlogopite and apatite, on the one hand, or to olivine-plagioclase-containing...E. A. , 1966, ECLOGITE XENOLITHS IN THE ALKALIC -ROCK DIATREMES IN PAMIR: AN SSSR Doklady, v. 169, no...KIMBERLITE AND RELATED ROCKS FROM THE MOSES ROCK DIKE, SAN JUAN COUNTY, UTAH: Amer. Mineralogist, v. 55, no |  | | Journal (article/letter/editorial) | | alteration of olivine (Mitchell, 1978) or in the reaction rock developed in the contact ofthe carbonatitesand the...is only observedin the crystals of the reaction rock. The partitioning of Fe and Mg between TiCl and...carbonatites as a product of alteration of olivine or in a rock that resulted from the reaction of the carbonatites...sovites (calcite rock), C2 is a dolomitic sovite, and C5 is a rauhaugite (dolomite rock). Based on mineral... t69 GASPAR: TITANIAN CLINOHUMITE The reaction rock A reaction that developed between carbonatites and |  | Condie, Kent C, Latysh, Natalie, Van Schmus, W.R, Kozuch, Marianne, Selverstone, Jane (1999) Geochemistry, Nd and Sr isotopes, and U/Pb Zircon ages of Granitoid and Metasedimentary Xenoliths from the Navajo Volcanic Field, Four Corners area, Southwestern United States. Chemical Geology, 156 (1) 95-133 doi:10.1016/s0009-2541(98)00176-4 | Journal (article/letter/editorial) | | Socorro, NM 87801, USA b Department of Geology, UniÕersity of Kansas, Lawrence, KS 66045, USA c Department...UniÕersity of New Mexico, Albuquerque, NM 87131, USA Received 13 February 1998; revised 30 September 1998;...upper crust, granitoids also are the most abundant rock type in the upper crust of the Colorado Plateau...closely associated with minettes at Red Mesa and Moses Rock and appear to have been erupted nearly contemporaneously...and from the isotopic ages of xenoliths from Moses Rock ŽSilver and McGetchin, 1994; Wendlandt et al |
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