 | | 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...intergrown with kosmochlor-rich omphacite, zincian chromite, eskolaite, and carmichaelite. The assemblage...is interpreted as the result of metasomatism of chromite-bearing serpentinite by slab-derived fluids during...At the time of entrainment of the xenolith, the rock was undergoing prograde metamorphism, with guyanaite |  | | Journal (article/letter/editorial) | | DIATREME, A KIMBERLITE PIPE IN NORTHERN LARIMER COUNTY, COLORADO M. E. McCerwwr, ColoradoState Unittersity...pyrope, chrome diopside, phiogopite, biotite, chromite, picotite, and magnetite. The matrlr of the breccia...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 |  | | Journal (article/letter/editorial) | | Sciences, University of Texas, Austin, Texas 78712, USA Abstract. Crystal fragments of pyrope from diatremes...northeastern Arizona and 37~ 109~ in southeastern Utah, respectively. The Garnet Ridge cluster, a group...microbreccias, which are mixes of comminuted crustal rock and mineral fragments, anhedral fragments of largely...The microbreccias, like those described at the Moses Rock, Buell Park, and Green Knobs diatremes of the...Colorado 81224, USA 0010-7999/81/0076/0312/$01.80 313 of ultramafic microbreccias from Moses Rock (McGetchin |  | | 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...forsterite, enstatite, pyrope, diopside, ilmenite, chromite, apatite and Na-rich tremolite in decreasing order...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...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...(;R = (;:~rnct Ridge; CV :~ Cane Valley; MR = Moses Rock; MI- = Mule Ear. Solid dots are generalized minette |  | | 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) | | inclusions in pyrope crystals from Garnet Ridge, Arizona, USA: implications for processes in the upper mantle ...Sciences, University of Michigan, Ann Arbor, MI 48109, USA; Fax: 734-763-4690; E-mail: liping@umich.edu Editorial...compositional zonation in pyrope, including amphibole, chromite, chromian diopside (Fig. 6c, d), and rarely chlorite...minerals (Table 4) are very similar to those from Moses Rock (McGetchin et al. 1970) and Buell Park (Aoki...is complex compositional zonation surrounding chromite and associated inclusions (Fig. 6d). 172 Table |  | | Journal (article/letter/editorial) | | rutile-diamond intergrowths were observed, garnet-pyroxene rock (Sobolev and Shatsky, 1990), and coesite-bearing...diamond morphology. Polymineralic inclusion of chromite (Chr) and titanite (Tn) of the LIMA series, pyrope...1C. The titanate along the contact between the chromite and pyrope probably formed through a reaction...gneisses (5), and from garnet-pyroxene diamondiferous rock, Kokchetav massif, northern Kazakhstan (6). All...of a polymineral inclusion of perovskite-rimmed chromite in a diamond from the River Ranch kimberlite, |  | | Journal (article/letter/editorial) | | narrow depth range (90-110 km) and derivation of chromite and garnet lherzolites from similar depths implies...vertical distances. No simple stratigraphy, in which chromite lherzolites overlie garnet lherzolites is evident...ultramafic suite was dominated by garnet and/or chromite lherzolites and harzburgites of varying degrees...temperature estimates for Pipe 200 ultramafic xenoliths Rock type Pyroxene solvus T ~ C Wells (1977) P kb W o.... 1,037 1,109 - Rock types CL = chromite lherzolite; G C L = garnet chromite lherzolite; G L = garnet |  | | Journal (article/letter/editorial) | | Sciences, University of Texas, Austin, TX 78713, USA Abstract. Mineral associations and compositions...Di2Ti (Ti), synthetic anorthite (Ca,M), ruby (A1), chromite IM-8 (Cr), synthetic fayalite (Fe), scapolite...hydrothermal systems and experimental hot-water/rock interactions. Geochim Cosmoclaim Acta 28:1323-1357...kimberlite and related rocks in the Moses Rock dike, San Juan County, Utah. Am Mineral 55:1738-1771 McGetchin...relations in the Cane Valley diatreme, San Juan County, Utah. J Geophys Res 78:1854-1869 Menzies MA, |  | | Report (issue) | | Mineral Deposits of MOUNT DIABLO Contra Costa County, California rUNlVERSlTY OF CAUFORN DAVIS View...rocks. Grass-covered ridge on right skyline is Moses Rock Ridge; flai-topped brush-covered ridge on left...skyline is Olofson Ridge. Saddle at left edge of Moses Rock Ridge Cover photo: slopes in foreground are...Summit of Mount Diablo is out of sight behind Moses Rock Ridge. (right) Geology and Mineral Deposits...Deposits of MOUNT DIABLO Contra Costa County, California By EARL H. PAMPEYAN, U.S. Geological Survey |  | | Journal (article/letter/editorial) | | type ID Chlorite is a common constituent of many rock types chlorite (Mitchell and Giardini, 1977)havebeen...Cr2O3content from the Moses Rock kimberlite and the CaneValley carbonatitedikes,Utah. Diopsidic pyroxenes...Mn; Foq, p-130 (n) for Mg; kyanite (n) for Si; chromite, Cr-cats (s) for Cr; jadeite, Jd-35 (s) for Na...the Koidu and Mir chlorites and for some of the Utah samples;a few of the latter are enriched in Mg...chlorites are markedly different from those of the Utah specimens, which are high chromium chlorites (0 |  | | Book (volume) | | A Location Guide for Rock Hounds in the United States Collected By: Robert C. Beste, PG 2014 Fourth...Fourth Edition A Location Guide for Rock Hounds in the United States Published by Hobbit Press 2435 Union...printing December, 1996 ii A Location Guide for Rock Hounds in the United States Table of Contents Page...................389 iii A Location Guide for Rock Hounds in the United States Page Ohio .......................................................452 Utah ............................................... |  | | 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...ChromianPicroilmeniteswith Intergrowths of Titanian Chromite and Rutile, B. Wyatt ...........................the SullivanButtesLatite, ChinoValley, Yavapai County, Arizona, Richard J. Arculus and DouglasSmith |  | | Report (volume) | | ............................................... Utah...................................................about 1,250,000 barrels. The production of natural rock cement was five times the combined production and...than 86,000,000 barrels. The production of natural rock cement and the imports of foreign cement are so...Compendium of the mineral resources of Arkansas, Little Rock Board of Trade Bulletin, 1912. Eakle, A. S., Minerals...Nashville, Tenn. California____.Mr. William H. Storms, San Francisco. Prof. A. F. Rogers, Stanford University |  | | Journal (article/letter/editorial) | | Crystallography Literature Because garnet is a common rock-forming mineral that commonly occurs in good crystals... Figure 3: Almandine, 3 cm. Avondale, Delaware County, Pennsylvania. John Medici specimen and photo....also, more commonly, used as a rock name for a contact metamorphic rock composed of grossular and diopside...uvarovite crystal, 0.8 mm, near Jacksonville, Tuolumne County, California. Dan Behnke specimen tahedral crystals...mine, Ramona, San Diego County, California. Natural History Museum of Los Angeles County specimen and |  | 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) | | this locality (Hunter and Smith 1981). The host rock of the diatremes consists of serpentinized ultramafic...ophiolites (Western Alps, Italy) in association with chromite, rutile, magnesite, chloritoid, omphacite, talc...been affected by the fluorescence of the adjacent chromite by Fe X-rays in the Cr- 800 WANG ET AL.: NEW...kimberlite and related rocks in the Moses Rock dike, San Juan County, Utah. American Mineralogist, 55, 1738–1771...inclusions in pyrope crystals from Garnet Ridge, Arizona, USA: Implications for processes in the upper mantle. |  | | Book (volume) | | Ohio OHIO Only Paleozoic rock formations underlie Ohio’s Pleistocene surface debris and Quaternary soils...ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...areas of drainage in 336 A Location Guide for Rock Hounds in the Untied States townships of Franklin...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE |  | | Book (volume) | | Ohio OHIO Only Paleozoic rock formations underlie Ohio’s Pleistocene surface debris and Quaternary soils...ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...areas of drainage in 336 A Location Guide for Rock Hounds in the Untied States townships of Franklin...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE |  | 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 |  | | Book (volume) | | A Location Guide for Rock Hounds in the United States Collected By: Robert C. Beste, PG 1996 Second...Second Edition A Location Guide for Rock Hounds in the United States Published by Hobbit Press 2435 Union...63125 December, 1996 ii A Location Guide for Rock Hounds in the United States Table of Contents Page...................333 iii A Location Guide for Rock Hounds in the United States Ohio ............................................................387 Utah................................................ |  | | Book (volume) | | A Location Guide for Rock Hounds in the United States Collected By: Robert C. Beste, PG 2005 Third Edition...Edition A Location Guide for Rock Hounds in the United States Published by Hobbit Press 2435 Union...63125 December, 1996 ii A Location Guide for Rock Hounds in the United States Table of Contents Page...................333 iii A Location Guide for Rock Hounds in the United States Page Ohio .......................................................387 Utah................................................ |  | | Report (chapter) | | Bryand Global Sciences Center, Orono, ME 04469-5790, USA 3 National Institute of Polar Research, 1-9-10...University of New Mexico, Albuquerque, NM 87131-0001, USA 5 Department of Earth and Planetary Sciences, Graduate...along upper contact of anorthosite with country rock An, Spr, Hbl, Ged, Phl, Crn, Crd; 2nd Chl (type...Tur (other) Moon Mountain, Adirondacks, New York, USA Ultramafic lens in layered anorthosite sill Hbl...– spinel xemolith in kimberlite Hbl, An, Crn, chromite; 2nd Tur, Czo, Chl, Ms Lenses in hornblende gneiss |  | | 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 |  | Rezvukhin, Dmitriy I., Nikolenko, Evgeny I., Sharygin, Igor S., Rezvukhina, Olga V., Chervyakovskaya, Maria V., Korsakov, Andrey V. (2022) Cr-pyrope xenocrysts with oxide mineral inclusions from the Chompolo lamprophyres (Aldan shield): Insights into mantle processes beneath the southeastern Siberian craton. Mineralogical Magazine, 86 (1) 60-77 doi:10.1180/mgm.2021.89 | Journal (article/letter/editorial) | | and the highest Zr (93 ppm) and Sc (471 ppm). Chromite-magnesiochromite, rutile, Mg-ilmenite and crichtonite-group...Australia (Jaques et al., 1984) and Prairie Creek, USA (Smith and Skinner, 1984). The subcontinental lithospheric...al., 2019 and references therein). The Chompolo rock occurrences are probably related to the extensive...garnet (0-145), ilmenite (GF-55), rutile (TiO 2 ), chromite (79/62) and several synthetic also form lamellae...Droop, 1987). These are dominated either by the chromite (FeCr2 O4 ) or magnesiochromite (MgCr2O4 ) components |
|
