 | | Journal (article/letter/editorial) | | Space Sciences, University of Washington, Seattle, WA 98195-1310, USA; bwevans@uw.edu (B.W.E.); kuehner@uw... In samples from the Duluth Complex (Minnesota, USA) containing igneous olivine Fa36–44 , a continuous...ferroan–olivine-bearing samples from the Laramie Complex (Wyoming, USA) show a compositional variability of secondary FeMg–phyllosilicate...Fe2 O3 t FeO t MnO MgO NiO CaO Anh. Total 13 Overlook Ore Deposit 19-821 19-821 His? Gre? 37.74 0.03...“His” = hisingerite; “Gre” = greenalite. For the Overlook samples, analyses are given considering Fe as |  | | Journal (article/letter/editorial) | | specimens, are either inaccessible or are in closed mining districts, or are closed for political reasons...City-D~Lamar Mining Dlstricts / J\. I,' -r-, - L..... ~ rl.. kl \ , 50 I 100 I Miles old mining and...scientific significance. In this index, the better known mining districts that have produced many high-quality...across, on blue thomsonite. Lucky Peak Dam, Ada County; Lanny Ream specimen and photo. Figure 3 (below)...cut near Pinehurst, Adams County; Lanny Ream specimen and photo. Ada County Lucky Peak Dam, on east side |  | | Journal (issue) | | Oct. 13-19 is Earth Science Week 2013.“Fremont County Stones and Bones” and Canon City Geology Club have...Creek and South Valley Open Space Parks (Jefferson County), structural geology and oil geology, led by Ned...Golden Horn Batholith, Washington Pass, Northern Cascade Mountains, Washington; by Dr. Markus Raschke...and Chemistry Depts. “The unusual minerals at Washington Pass include zektzerite, sogdianite, brannockite...small sample in a box labeled “Zunyite from Zuni Mine, San Juan Mountains, Colorado” (Fig. 1). That was |  | | Book | | farm above Keuka Lake in New York's Finger Lakes district. After attending Penn Yan Academy in nearby Penn...Harold L. Alling's geology students on a trip to the mining districts and the high peaks of the Adirondack...searching for silver near Lake Sanford in Essex County discovered magnetite in 1826, but an excess of...Rochester; the main Public Library of Buffalo and Erie County; and the Crandall Public Library (Holden Research...pegmatite-Westchester County .......... . The Mclear pegmatite-St. Lawrence County .......... . Minerals | | | Book | | enteri versity of Roches Harold L. Ailing's the mining distri* Adirondack Mou somed into a lifet New York...searching for silver near Lake Sanford in Essex County discovered magnetite in 1826, but an excess of...Rochester; the main Public Library of Buffalo and Erie County; and the Crandall Public Library (Holden Research...ciifce—Westchester County.................. Tne McLear pegmatite—5t. Lawrence County.............................. Tilly Foster magnetite mine near Brewster, Putnam County.................................. |  | Frost, C. D., von Blanckenburg, F., Schoenberg, R., Frost, B. R., Swapp, S. M. (2007) Preservation of Fe isotope heterogeneities during diagenesis and metamorphism of banded iron formation. Contributions to Mineralogy and Petrology, 153 (2) 211-235 doi:10.1007/s00410-006-0141-0 | Journal (article/letter/editorial) | | Geophysics, University of Wyoming, Laramie, WY 82071, USA e-mail: frost@uwyo.edu F. von Blanckenburg R. Schoenberg...mines; samples C, D, and E are from Northshore Mining Company mines 123 Geology of the Biwabik Iron...Formation, well-exposed in the LTV and Northshore Mining Company mines, we have been able to identify isograds...from outside the contact aureole to above the fayalite-in isograd. Sample descriptions All samples were...(labeled 3), carbonate and chert (labeled 2). e Fayalite-bearing iron formation composed of olivine (~40%) |  | | Book (edition) | | Chapters on the Coeur d'Alene Mining District, the Blackbird Mining District, and the Sawtooth Mountains...Chapters on the Coeur d'Alene Mining District and the Blackbird Mining District, and to Ben Sheppard for reviewing...reviewing the chapter on the Blackbird Mining District. Those who contributed photographs, or specimens...or a vein of massive pyrite and chalcopyrite in a mine, so references such as these were not included....for a particular mineral may be a certain mine, but that mine may now have a new name, or may now be a |  | | Journal (article/letter/editorial) | | fo,-fF> fields at constant P-T. The presence of fayalite-ferrohedenbergite-fluorite-quartz *magnetite and...found in the same Au Sable Forks outcrop as the fayalite-fluorite-ferrohedenbergite-quartz-magnetitie assemblage...typical accessory phase in hypersolvus granites, fayalite granites, syenites and nepheline syenites. It...equilibrium with iron-rich ortho- and clinopyroxenes, fayalite, quartz and iron oxides has not yet been carefully...yalite-hornblende-ilmenite-zircon-fluorite in fayalite granites near Wanakena. New York. At this locality |  | | Journal (issue) | | INFORMATION Anyone interested in the minerals, mines, or mining history of the FranklinOgdensburg, New Jersey area...Articles related to the minerals or mines of the district are welcome for publication in The Picking Table...Jaszczak A Complex Base Metal Assemblage from Sterling Mine, New Jersey Reprint from Mineralogical Record R...a depth of 1050'. Photo courtesy Sterling Hill Mining Museum www.FOMSNJ.org The contents of The Picking...sponsored by the Rock and Mineral Club of Lower Bucks County, and will be held at the Emilie Methodist Church |  | Graupner, Torsten, Mühlbach, Caroline, Schwarz-Schampera, Ulrich, Henjes-Kunst, Friedhelm, Melcher, Frank, Terblanche, Hennie (2015) Mineralogy of high-field-strength elements (Y, Nb, REE) in the world-class Vergenoeg fluorite deposit, South Africa. Ore Geology Reviews, 64. 583-601 doi:10.1016/j.oregeorev.2014.02.012 | Journal (article/letter/editorial) | | Sallstr. 79, D-30171 Hannover, Germany Vergenoeg Mining Company (PTY) LTD., South Africa d Chair of Geology...a diverse silica-undersaturated assemblage of fayalite–magnetite–fluorite with variably subordinate apatite...towards the heaviest REE (Tm–Lu) observed in the fayalite-rich units. Common HFSE minerals are complex Nb-rich...2. Geology, mineralogy and samples The Vergenoeg mine is located in the Kaapvaal Craton in southern Africa...et al. (2013). The Vergenoeg magnetite–fluorite–fayalite deposit is a pipe-like body (Goff et al., 2004) |  | | Journal (issue) | | l THE GEOLOGY OF LOWER MILFORD TOWNSHIP, LEHIGH COUNTY, PA. ( Part l ). By Charles W . Brown ...........DINNER MEETING OF THE MI NERALOGICAL SOCIETY OF THE DISTRICT OF COLUMBIA. By Philip R. Cos111insky .. 21 6...and mineralogy of the Sku ll Valley area, Tooele County, Utah, are here described ; physiographic history...1830, the Skull Valley area, in central Tooele County, Utah, was not studied or mapped in any detail...recent ages. Latest igneous activity in the Tooele County, Utah, and has a north- general area was in the |  | | Report (issue) | | ............................. President, Idaho Mining Association Jack Peterson .......................Carrietown Counties, Idaho Silver-Lead-Zinc District, Blaine and Camas Robert S. Darling Vii 193...Evenson Part C. History of Gold Mining on the Yankee Fork River, Custer County 223 George C. Stephens Part...top: Cougar Point Tufi Bnzneau Canyon, Owyhee County, Idaho. Photograph by Bill Bonnichsen. Mt. McCaleb...Chapter 3, with articles on the Carrietown mining district west of Ketchum and jasperoid occurrences near |  | | Journal (issue) | | on limestone along r~:t~JQ.\{t;_t:l'!'P_erland County, 5 miles southwest of Carlisle. Photo courtesy~'of...calculated budget-productivity ratios which tend to overlook the elements of qual ity and of response to human...concerning the minera l industry of Pennsylvania. The mining industry in Pennsylvan ia presently directly employs...increase those figures in the future. Although Washington, Indiana, and Clearfield were the three leading... Greene County, with 12 major underground mines planned, may become the "numero uno" county for coal |  | | Book | | Malde M. A. Kuntz American Geophysical Union, Washington, D.C. Copyright 1989 American Geophysical Union...Union 2000 Florida Ave., N.W., Washington, D.C. 20009 ISBN: 0-87590-627-3 Printed in the United States...Foundation 1800 NSE 1800 G Street, NW Room 602 Washington, D.C. 20550 B. Bonnichsen Idaho Geological Survey...of Prey Area, Idaho, From Grand View to Walters Ferry Harold E. Malde REFERENCES 86 97 IGC FIELD...Sciences Division, National Science Foundation, Washington, D.C. ABSTRACT The Snake River Plain (SRP) is |  | Barrat, J.A., Yamaguchi, A., Bunch, T.E., Bohn, M., Bollinger, C., Ceuleneer, G. (2011) Possible fluid–rock interactions on differentiated asteroids recorded in eucritic meteorites. Geochimica et Cosmochimica Acta, 75 (13) 3839-3852 doi:10.1016/j.gca.2011.04.013 | Journal (article/letter/editorial) | | eucrite Agoult and the cumulate eucrites Moore County and Serra de Mage, are rare. Most of these rocks...Institute of Polar Research (Tokyo) (NIPR), Sioux County by University of New Mexico, Pasamonte by the Hawaii...same secondary processes, as exemplified by Sioux County. 3.1. Unequilibrated eucrites 3.1.1. Stage 1: Fe-enrichment...pyroxene clasts from the polymict eucrite Sioux County, we have discovered olivine veins with chemical...veins (10–50 lm thick) of low-Ca pyroxene and fayalite with minor plagioclase and silica minerals are |  | | Journal (issue) | | early work. Although there are numerous works on mining in the Caldbeck Fells [e.g,Postlethwaite(1913)...Stanley(1990)] there is no specific reference to mining in Burdell Gill. It is, however, worth noting the...northern most group of hills in the English Lake District (Fig. 1). It is a small tributary of the River...stream sediment survey of the area around Carrock Mine (Appleton and Wadge, 1976) shows three, roughly...resembles the quartz in the tungsten veins at Carrock mine, being very coarse and greasy with few cavities |  | | Book | | stumble over a valuable nugget and stake your own mining claim? Indeed it to is, and author book Jay...prospecting, he points out, is in abandoned mining districts, where valuable mineral ores are present...commercial ores and secondary minerals by state, county, township, and geologic range. For easy identification...RANSOM 1875-1948 An to the Eastern '‘Schoolmarm” Mining Camps of the Old West I I a s I \ h K... CONTENTS Preface ix PART I 1 Introduction to Mining and Mineralogy 2 Preparation for Mineral Collecting |  | | Journal (article/letter/editorial) | | http://meteoritics.org Thermodynamic constraints on fayalite formation on parent bodies of chondrites Mikhail...Arizona State University, Tempe, Arizona 85287–1404, USA Institute of Geochemistry and Analytical Chemistry...Arizona State University, Tempe, Arizona 85287–1604, USA *Corresponding author. E-mail: zolotov@asu.edu (Received...order to evaluate the formation conditions of fayalite, (Fe0.88–1.0Mg0.12–0)2SiO4, Fa88–100, in unequilibrated...alteration are evaluated. The modeling shows that fayalite can form as a minor secondary and transient phase |  | | Journal (issue) | | QUICKSILVER AND ANTIMONY DEPOSITS OF THE STAY· TON DISTRICT, CALIFORNIA ....................................Leon B. Bailey 406 TIN DEPOSITS OF NORTHERN LANDER COUNTY, NEVADA 409 CALIFORNJA FIELD TRIP. By Uoyd M. D...ccountries, visited Yosemite National Park in Mariposa county, California, enjoying its unrivaled grandeur and...inside out). Farther, a natural granite pillar, Washington Column, rises 1952 feet above the valley floor...The refore, Yosemite is not a minera- . lized district, from a miner's standpoint Generally speaking |  | | Journal (article/letter/editorial) | | approximately 3001 C in a gold mine in north-eastern Washington, USA. Krot et al. (2000) even concluded...the ungrouped carbonaceous chondrite MAC 88107, fayalite and hedenbergite formed during late-stage, low-temperature... 2000. Evidence for low-temperature growth of fayalite and hedenbergite in MacAlpine Hills 88107, an...Low-temperature fayalite, greenalite, and minnesotaite from the Overlook gold deposit, Washington; phase relations |  | | Journal (issue) | | IMFORMATIOM: Anyone interested in the minerals, mines, or mining history of the Franklin-Ogdensburg, New Jersey...Articles related to the minerals or mines of the district are welcome for publication in The Picking Table...Hill, New Jersey R. Jenkins Franklin-Sterling Hill Mining Terms: A Primer for the Novice S. Sanford 12 ...Executive Inn had some nice specimens from N'Chwaning Mine, Kuruman, Cape Province, South Africa (one assemblage...several assemblages). Specimens from the Wessels Mine, Kalahari Manganese Fields, Cape Province, South |  | | Journal (article/letter/editorial) | | Sciences, Box 351310, University of Washington, Seattle, Washington 98195-1310, U.S. A. Geophysical Laboratory...Carnegie Institution of Washington, 5251 Broad Branch Road, N.W., Washington, D.C. 20015-1305, U.S.A...automated JEOL 733 Superprobe at the University of Washington, Seattle, using our library of natural mineral...the University of Washington, Seattle, the Geophysical Laboratory (GL), Washington, D.C., and the University...1.995 2.002 2.007 (UM). At the University of Washington, we used a Huber 512 four-circle diffractometer |  | | Journal (article/letter/editorial) | | Ultramafic Rocks NU Institution, Woods Hole, MA 02543, USA Geoscience Department, University of Bremen, 28359... University of Colorado, Boulder CO 80309-0392, USA Corresponding author: Tel: +1-508-289-3355, ...calculations. In contrast to forsterite-rich olivine, fayalite-rich olivine can be stable to temperatures as...the predicted aH2(aq) for serpentinization of fayalite is maximal at temperatures ≤ 180 °C. Keywords:...thermodynamic models; peridotite; pyroxenite; fayalite; hydrogen; magnetite; serpentine 1. Introduction |  | | Journal (article/letter/editorial) | | checked prior to chondrule size determinations. The fayalite (Fa) and ferrosilite (Fs) statistics for randomly...parentheses: number of analyzed mineral grains. Fa = Fayalite content of olivine (mol%); Fs = Ferrosilite content...*Purchased from R.A. Langheinrich Meteorites, Ilion, NY, USA. equilibrated (percentage mean deviation of Fa values:...stringently following a raster in order to not overlook any chondrule cut face. Apparent chondrule sizes...material was searched several times in order to not overlook any chondrule down to the smallest size which |  | | Report (issue) | | composition UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1966 UNITED STATES DEPARTMENT OF THE INTERIOR...of Documents, U.S. Government Printing Office Washington, D.C. 20402 - Price 20 cents (paper cover) CONTENTS...J{ilauea lavas, have 2V close to 90° and hence a fayalite content of about 13 mole percent.. Only four analyses...they average 13.0+2.0 mole percent fayalite. The total range of fayalite content reported for unaltered Kilauea...compositions may differ by as much as 10 mole ·percent fayalite. The difficulty arises in part from the fact that |
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