 | | Journal (article/letter/editorial) | | ON THE NAVAJO RESERVATION, ARIZONA H•.P•.• AND UTAH. E. GREGORY. INTRODUCTION. On the basisof ec...containingiron andaluminium,the so-called"precious garnet"; pyrope, a magnesium-aluminium garnet; rhodolite, found...HERBERT E. GREGORY. garnet of gem quality i's the pyrope, which under the namesof "Bohemiangarnet,""Cape...curio and jewelry storesin various citiesof Colorado,Utah, 'Arizona, NewMexicoandCalifornia, "Arizonarubies"are...uncut stonesand cut gems. In the storesalong the San Juan River and at trading postswithin the Navajo Reservation |  | | Journal (article/letter/editorial) | | AND RELATED ROCKS IN THE MOSES ROCK DIKE, SAN JUAN COUNTY, UTAHI Tnorr.qs R. McGrrcyrN, Department.of...Permian Cutler Formation, in eastern Monument Valley, Utah. Petrographic, bulk chemical, and electron microprobe...percent another,2 to 5 percent), spinel, chrome-rich pyrope garnet, ilmenite-geikielite, titanoclinohumite...Moore (unpublishedmap) mapped the geologyof the Mule Ear diatreme during 1955to 1957and found tufl-like...Valley, about 5 miles southeast of Mexican Hat, Utah, near the center of the Colorado Plateau Province |  | | Journal (article/letter/editorial) | | merit, is stronglysuggestiveof epigeneticorigin. Pyrope, with a moderate content of almandite and a smaller...RXD•E is located in northeastern Arizona, near the Utah State line, 35 miles northeast of that xenocrystgarnetsare...proposed by Woodruff in 1912 for the depositat Mule Ear, 18 An insight into the nature of the debate...anticline, a mainstructural element in southeast / Utah. Two setsof joints,bothnearlyverticalandclosely...50 50 40 110 Jm Jb Js Je Jc Jn Jk Jw Morrison Bluff Sandstone Summerville EntradaSandstone CarmeI Navajo |  | | Book | | FOUND IN UTAH Adapted by Martha R. Smith o UTAH GEOLOGICAL AND MINERAL SURVEY a division of UTAH DEPARTMENT...found in Utah is based on a chapter on Gem Materials, written by M.D. Dasch and published in Utah Geological...Survey Bulletin 73, Mineral and Water Resources of Utah. Bulletin 73 , published in 1969, was prepared by...has been updated and expanded. DID YOU KNOW? .. Utah has a wide variety of gem materials from which semiprecious...found in Utah include: azurite and malachite; beryl (aquamarine and morganite); garnet (pyrope and spessartite); |  | | Report (volume) | | formation_____________________________________ Bluff sandstone___________________________________________...sections of the Monument No. 2 mine area, Apache County. 1. Index map of parts of Apache and Navajo Counties________...the regional geology, 109° 30' 110° 30' JUAN COUNTY 37" 00' H z 8 ::u 0 I:) d 0 8 ~ 0 ...Navajo Counties, Ariz., and a small part of San Juan County, Utah. The area is wholly within the Navajo Indian...and Dinnehotso, Ariz.; and Gouldings and Oljeto, Utah (fig. 1). ROADS Roads are poor and travel is difficult |  | | Report (chapter) | | upper mantle xenoliths from Moses Rock Diatreme, Utah, has led to the discovery of evidence for low temperature/high...i c a n 500km ~ / 50km ,Bluff I ~'1 MR Moses Rock ME- Mule Ear GR - Garnet Ridge FIG. I. Location...(glaucophane) Jadeitic pyroxenite e.g. MD3 MD101 Pyrope-omphacite eclogite Garnetite e.g. MRD/GT/1 MRD/GT/2...As above in garnets nearest to rims. Diopside-pyrope reacting to give omphacite, garnet and chlorite;...clinopyroxene groundmass Orthopyroxene clinopyroxene Pyrope garnet pleonaste spinel Spinel Websterite e,g |  | | Journal (article/letter/editorial) | | Sciences, Universityof Texas Austin, Texas 78712, USA Abstract. Eclogite inclusions from kimberlitic diatremes...Geology,StanfordUniversity, Stanford, CA 94305, USA * Introduction The eclogite inclusions in the...Rock, and Mule Ear diatremes, all in the northern group of Plateau diatremes near the Arizona-Utah border...and Mg, corresponding to changes of up to 6 tool% pyrope, accompany the optically-visible zoning: the most...experimental data at pressures to 10 kb on almandine-pyrope garnets suggest high temperatures and/or low water |  | | Journal (article/letter/editorial) | | plateau of northeast Arizona and the adjacent parts of Utah and New Mexico. These are the remnants of a volcanic...To the southwest lies the volcanic field of the San Francisco peaks; to the southeast that of Mount Taylor...scoriaceous fragments, like those in the neighboring San Francisco volcanic field, can not have been present...extending from the village of Kayenta in an arc to the San Juan River. These tend to follow a strong system of...an elongated neck about two miles south of the San Juan River. Two dikes, one a foot and the other only |  | | 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) | | clinopyroxene. The grossular component in aimandine-pyrope garnets is known to increase with increasing pressure...related rocks from the Moses Rock dike, San Juan County, Utah. Am. Mineral. 55, 1738-1739. MacGregor,...Stuart-Alexander, D. E. 1969: The age and temperature of the Mule Ear diatreme. Geol. Soc. Am. Program Abstr. Ann. Meet...128 A. R d h e i m & D, H. Green per;dotite, and pyrope from the Navajo Country, Arb~na and New Mexico...33, 589"$93. Sobolev, N. V. 1970: Eclogites and pyrope peridotites from the kimberlites of Yakuti~, Phys |  | | 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...lamprophyre dike. Moses Rock, Garnet Ridge and Mule Ear are diatremes consisting of a friable serpentinized...of Colorado Plateau xenolith localities: ME = Mule Ear; MR = Moses Rock; GR = Garnet Ridge; TT = The |  | | Book (volume) | | 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...Guide for Rock Hounds in the United States CUSTER COUNTY AREA: The November Mine, 1.2 mi. SE of the Needles...of rd. a few yds., outcropRose Quartz. DOUGLAS COUNTY CORSICA, S on US 281 to Armour, area rd. cuts, |  | | Report (issue) | | RECONNAISSANCE OF PAR~S OF A.RIZONA, NE'V ~IEXICO, AND UTAH BY HERBERT E. GREGORY BUREAU OF MINES LIBRARY.... . . . . . Little Colorado Valley........... San Juan Valley. . . . . . . . . . . . . . . . . . Physical...Colorado Valley. .. .. .. .. .. . .. .. . .. .. San Juan Valley. . . . .. .. .. .. .. .. .. .. Mountains............................ . Gold on the lower San Juan .............. . Gold in the Carrizo Mountains...Oil ......................................... . San Juan oil field ...................... . Seven Lakes |  | | Book (volume) | | that data up to the end of 1974. John Sinkankas San Diego, California July, 1975 JOHWSTUPAW.N19,901...region; the Southern Onyx and Marble Company of San Diego, California, furnished information and a photograph...supplied by Dowse’s Agate Shop, Salt Lake City, Utah, by William J. Bingham of St. Paul, Minnesota, by...of the Kobuk jade locality. Descriptions of San Diego County, California, gemstones and the mines in which...the generous assistance of many residents of that county. My special thanks are extended to Elbert H. McMacken |  | | Journal (article/letter/editorial) | | reaction (1) Mg-phengite + almandine ~- Fe-phengite + pyrope AHo and ASo are the standard enthalphy and entropy...Stuart-Alexander, D.E.: The age and temperature of the Mule Ear diatreme. Geol. Soc. Am. Program. Abstr. Ann....9, 161-164 (1976) Sobolev, N.V.: Eclogites and pyrope peridotites from the kimberlites of Yakutia. Phys |  | | Book | | talc schists; although diamondiferous, they lack pyrope and ilmenite but contain abundant chromite. In...diarnondpyrope subfacies kimberlites; C Zone of pyrope sub-facies kimberlites; D Zone of Jocks of kim...according to the presence or absence of diamond and pyrope garnet; a central zone of diamondiferous kimberlites...by a zone in which both pyrope and scarce diamond are present (diamond-pyrope sub facies), then by a zone...zone in which diamond is absent but pyrope is present (pyrope sub facies), and fmally by an outer area |  | | Report (issue) | | A253-A258 of this chapter. Numerous Federal, State, county, and municipal agencies and other organizations...Mineralization and structure- ____________ Coal in San Juan Basin _ _ -___________-- m Al 1 i i 7 7 7 9 n...region-____________________ Nevada_________________________ Utah -------_____---_-_-_-_--_-Arizona______________________________..._______________________ Nebraska. _____________________________ Utah _ _--_-----------________________ Colorado ____...cooperators_-____ ---------_____-____ 209 State, county, and municipal cooperaters__________ 209 Other |  | | Book | | ultrabasic magmas may crystallize to spinel, or pyrope-rich garnet. Hornblendeperidotites vary in composition...is a garnet-pyroxenite composed essentially of pyrope and omphacite. of Johannsen (1938) supplement...forsterite begins at lower pressures than that of pyrope with forsterite investigated by MacGregor enstatite...pressures, spinel at intermediate pressures, and pyrope-rich garnet at high pressures. Forsterite, clinopyroxene...em Alaska (Taylor and Noble, 1960). It RED BLUFF BAY KANE PEAK (Guild & Balsley) 1942 > YYuyg447 |  | | Book | | Robert Cooper Liebermann Stony Brook University USA Editorial Office MDPI St. Alban-Anlage 66 4052 Basel...1924 in Price, Utah. He completed all of his college education at the University of Utah. His PhD advisors...Stony Brook University, Stony Brook, NY 11794-2100, USA; Robert.Liebermann@stonybrook.edu; Tel.: 1-(631)-632-1968...received my PhD in physics at the University of Utah under the supervision of Henry Eyring and Walter...Ceramic Science” (see Figure 8) [21]. As a native of Utah, Orson had a fascination with the Four Corners area |  | | 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...the SullivanButtesLatite, ChinoValley, Yavapai County, Arizona, Richard J. Arculus and DouglasSmith ...Diopside Diopside Jadeite Jadeitc Ureyite Ureyite Pyrope Pyrope Almadine Almadine Grossular Grossular Knorringite...solution components grossular (gr, Ca3A125i3012)and pyrope (py, Mg3A12Si3012)and the pyroxenepyroxenoid [Pyx] |  | | Report (issue) | | 1966 1967 1968 1969 1970 Numerous Federal, State, county, and local agencies and other organizations and...region-Continued Texas ...................................• Utah Pacific co~t·~~~~· : : : : : : : : : : : : : :.................•..... San Fernando, Calif., earthquake of February 9, 1971. San Andreas fault system,... California ....•.......• San Andreas-San Jacinto fault systems, Imperial Valley, Calif. • ............Special engineering studies ...................... . San Francisco Bay region environment and resources planning |  | | Book (edition) | | The largest groups of new terms have been U.S. county names; rock-formation names (mostly North American);...Thesaurus. These include local geographic terms, U.S. county names, rock-formation names, and fossil names....term must be a name unique to one area. Lincoln County is not assigned coordinates in the Thesaurus, because...North America from the broader terms of Hanover County. There is no reciprocal entry for each broader...counties of the United States; e.g., Chautauqua County may have a broader term Kansas or New York. BX |  | | Book | | ............... 6.2.4. Cr-Poor Megacryst Suite Pyrope ................................... 6.2.5. Trace................................ 6.6.3.4. Fayette County (Hunter et al. 1984) ....................... 6...the xenoliths, e.g., chrome diopside and chrome pyrope derived from lherzolites or jadeitic pyroxenes...crystals of magnesian ilmenite, Cr-poor titanian pyrope, diopside (commonly subcalcic), enstatite, phlogopite...Macrocrysts of magnesian ilmenite and Cr-poor titanian pyrope are compositionally equivalent to the ilmenites |  | | Report (volume) | | University Brigham Young Univ. Geology Studies Provo, Utah. Museum of Comparative Zoology. Brigham Young...Spec. Pub. Studies. Special Publication. Provo, Utah. Brigham Young University Geology British Columbia...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... Mines and Geology Map Sheet Geology Map Sheet. San Francisco, Calif. California Division of Mines and |  | | Report (issue) | | A293-A298 of this chapter. Numerous Federal, State, county, and local agencies and other organizations and... . Geochemical prospecting for breccia pipes, San Juan Mountains, Colo. . ........................ ....region-continued South Dakota •..•...•......•....•.•........ Utah .•.•...•....•........................ Pacific coast...Geologic studies ............................. . San Fernando, California, earthquake of February 9, 1971...1971 .................................. . San Francisco Bay region .................... . Gabilan Range |
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