 | MacLeod, N.S., Taylor, E.M., Sherrod, D.R., Walker, G.W., Causey, J.D., Willett, S.L. (1983) Mineral resource potential map of the Three Sisters Wilderness, Deschutes, Lane and Linn counties, Oregon. Open-File Report Vol. 1983 (83-659) US Geological Survey doi:10.3133/ofr83659 | Report (issue) | | Three Sisters Wilderness, Deschutes, Lane, and Linn Counties, Oregon By Norman S. MacLeodl, Edward M....Open-File Report 83-659 U.S. Geological Survey 2 3 . Oregon State University and U.S. Geological Survey U.S...Willamette National Forests, Deschutes, Lane, and Linn Counties, Oregon. The Three Sisters Wilderness was...wilderness. A broad area centered around South Sister volcano is among the most geologically favorable...favorable localities for geothermal resources in the Oregon Cascade Range, based on the large volume of silicic |  | | Journal (issue) | | WASHINGTON November 3, 2001 9:30 am to 6:30 pm Clark County P. U. D. Building 1200 Fort Vancouver Way Vancouver...Howard will talk and show slides of Osidian Cliffs, Lane Co., Oregon. Anyone who has slides to share with the...Wa)' Washington Interstate Bridge Columbia River Oregon 2. PRESIDENT'S COMMENTS: Results of the Membership...of the northwest location registers (such as an Oregon site guide). This has been a controversial topic...questionnaire to give us benefit of your ideas. Just pass them on to me or one of the other officers of the |  | | Journal (issue) | | safe and healthy. Hopefully this whole mess will pass and we will be able to meet again in the Fall. ...G. Howard, editor 356 SE 44th Avenue Portland, Oregon, 97215 e-mail: pogodh@hei.net DUES: $15 per year...“Kelly” Starnes 1276 SE Goodnight Avenue Corvallis, Oregon, 97333 e-mail: bikeklein@yahoo.com Zeolite Group...forming orderly crystalline solids and the result is obsidian. If enough cooling has occurred before the molten...results in the spherical white regions in snowflake obsidian. If the regions grow a little further, spheres |  | | Journal (article/letter/editorial) | | Al)O4tetrahedra (Tl), is mainly occupiedby K. When osumilite contains octahedralAl, a high concentration of...site to be optically negarive. INrnonuc:rroN Osumilite (Miyashiro, 1956),with the crystal-chemical formula'...are assumedto be vacant in osumilites. Although osumilite was considered a rare mineral 10 years ago, today...formations. The stability of synthetic K-Mg-bearing osumilite has been experimentally establishedto lie betweenca...suggestsa very low/rro. Although a largenumber of osumilite occurrenceshave been reported and the chemical |  | Martin, Audrey M., Médard, Etienne, Devouard, Bertrand, Keller, Lindsay P., Righter, Kevin, Devidal, Jean-Luc, Rahman, Zia (2015) Fayalite oxidation processes in Obsidian Cliffs rhyolite flow, Oregon. American Mineralogist, 100 (5) 1153-1164 doi:10.2138/am-2015-5042 | Journal (article/letter/editorial) | | Fayalite oxidation processes in Obsidian Cliffs rhyolite flow, Oregon Audrey M. Martin1,2,*, Etienne Médard3...present in lithophysae from a rhyolite flow (Obsidian Cliffs, Oregon). Textural, chemical, and structural analyses... 1154 MARTIN ET AL.: FAYALITE OXIDATION IN OBSIDIAN CLIFFS RHYOLITE gested that Fe3+ can only be incorporated...the talus of the Obsidian Cliffs rhyolite flow, East of McKenzie Pass in the Oregon Cascades, U.S.A....part of the flow is mostly a compact and glassy obsidian with spherulites, containing deformed microlite |  | | Catalog/List | | Old No. l Headfnme. Whi ■ key Hlll Mine, Tuohnne County, CaUfomla (r■-,u. .SV•t- tor cr11•t•J lJaed gold...feldspar. 784 ADAMITE, Moha\'.1k Mine, San Bernardino County, r.alifornia. Group o f colorless to light green...chalcophanite crystals on \/ad. 104 ADAMITE, Quartz Mountain, Nevada. Pale blue to colorless nearly equant...785 ADAMITE (CUPRIAN),MohawkMine, San Bernardino County, California. Nicely spaced transparent jade green...55:1447 (1970). 911 ALBITE,Clear Creek, San Benito County, California. White semi-transparent crystals on |  | | Journal (article/letter/editorial) | | (metastable) osumilite obsen'ed in laboratory experiments' The rare mineral osumilite was anall.zed...the new electron microprobe anall'sis of pure osumilite from the type locality, Sakkabira, Japan, with...Arci, Sardinia (Rossi, 1963), and Obsidian Cliffs, Lane Countv, Oregon, U.S',\. (Walker, personal commu...12 22.O 7.7" 8.4 0.74 2.9 0 .1 4 .0.35 3.0 obsidian Cliffs, Oreson 6 1. 8 0.11 2r.8 1.5" 6.9 0. 9 8... 1). rn the structural formulae of all three osumilite samplesthe numbers of K and ca atoms in this position |  | | Journal (article/letter/editorial) | | Abstract osumilitesfrom sakkabira,Japan,obsidian cliffs, oregon, and Nain, Labradorhavebeen studiedby optical...arisesfrom the channelcontents. Introduction Osumilite,K(Mg,Fe,Mn)r(Al,Fe3+ )r(Si,Al)rrOro,is found in...(Goldman et al., 1977)are applied to the study of osumilite,becauseof the structuraland spectroscopic sim...Theseinterpretationsprovidethe basisfor the study of osumilite. This paperreportsthe findingsof a combinedelectronic...infraredspectrahavebeentakento examine the water contentin osumilite,and to seeif spectral differencesexist between |  | | Journal (issue) | | WASHINGTON November 3, 2007 9:00 am to 5:00 pm Clark County P. U. D. Building 1200 Fort Vancouver Way Vancouver...you can. PUD Park Washington Interstate Bridge Oregon Mill Plain Blvd. Ft. Vancouver Way Columbia...Ceil Stickney of Eugene, Oregon near the town of Trent in Lane County, Oregon, just southeast of Springfield/Eugene...in the extreme northwest part of T19S R1W in the north part of section 7, although the township and range...Trent, Lane County, Oregon Fig. 5 Yellow orpiment needles in chalcedony, Trent, Lane County, Oregon Fig |  | | Journal (issue) | | 5 Magnetic Minerals Donald G. Howard Portland, Oregon Magnetism as most people think of it is relatively...spherical clusters of cristobalite embedded in obsidian at several locations in California. As such, it...olivine that occurs with osumilite and phlogopite in the tridymite at Obsidian Cliffs is very different. It...Laihunite The remaining electrons may not Obsidian Cliffs, Lane Co., OR 9 be localized, in which case...on laihunite, especially the material from Obsidian Cliffs. More work is necessary on this interesting |  | | Journal (article/letter/editorial) | | American Mineralogist, Volume 61, pages 29-37, 1976 Osumilite of deep-seated origin in the contact aureoleof...experimental and natural evidencehas indicated that osumilite is formed only at very low pressuresand probably... the osumilite formed at Pao'"1- 5 kbar and I: 700'-900'C, but Psp ( We conclude that osumilite is stable...Monte Arci, Sardinia (Rossi, 1963);Obsidian Cliffs, Lane County, Oregon (Olsen and Bunch, 1970); and Tieveragh...(Schreyerand Seifert, 1967)which indicated that osumilite of composition KMgrAlssir0Al2o3ocould not lDeceased |  | | Journal (article/letter/editorial) | | YAGIITE, A NEW SODIUM-MAGNESIUM ANALOGUE OF OSUMILITE Center, TnnooonoE. BuNcn,AmesResearch 1r,4S,4...Argonne, Illinois 60139. Assrnacr Yagiite, a new osumilite-type sodium-magnesium-aiuminum silicate is {ound...data show that yagiite is isostructural with osumilite; unit cell dimensions are a : 1 0 . 0 9 + 0 ....2.70 g/cm3. INrnonucrroN 'ya-gc-ite), a new osumilite-typemineralwith the Yagiitel, (pronounced structural...that yagiite is very similar to osumilite, and to two other osumilite-type meteorite minerals, roedderite |  | | Journal (issue) | | Violet #5 claim , Wah Wah M oun tains, Beaver County, Utah. The crystal is about 1 cm in size. John...B-2120 Schoten England: Roger S. Harker 2 Wellsic Lane, Rothley Leicestershire LE7 7Qb Canada: Mrs. J...westcentral and southwestern Utah comprise one o f North America’s most interesting collecting regions. The...been known for many years in the Dugway Range, north of the Thomas Range, and in the Keg Mountains, 12...four to eight miles across, and trends north-south. Spor Mountain lies to the west and appears almost to |  | | Journal (issue) | | following people: England: Roger S. Harker 2 Wellsic Lane, Rothley Leicestershire LE7 7Qb Canada: Mrs. J.... and Peter Keller, curator at the Los Angeles County Museum of Natural History, were instrumental in...January-February, 1981 5 INTRODUCTION In the region of the North Atlantic, vast areas of the land and sea floor are...are covered by basalts which constitute the North Atlantic (or Thulian) Tertiary Igneous Province. These...spar) and other types of crystals occurring in the cliffs. Some interesting details are given in a letter |  | | Journal (issue) | | WASHINGTON May 3, 2014 9:00 am to 5:00 pm Clark County P. U. D. Building 1200 Fort Vancouver Way Vancouver...Bridge Columbia River County Buffet in Vancouver. Please join us if you can. Oregon 2 Hello from your...G. Howard, editor 356 SE 44th Avenue Portland, Oregon, 97215 e-mail: pogodh@hei.net DUES: $15 per year...“Kelly” Starnes 1276 SE Goodnight Avenue Corvallis, Oregon, 97333 e-mail: bikeklein@yahoo.com 3 Mineralogy...Rhombs of calcite on siderite Clackamas River, Oregon angle can be anything from 0o to 120o, excluding |  | | Journal (article/letter/editorial) | | Springer-Verlag 1981 The Restricted Stability of Osumilite Under Hydrous Conditions in the System K 2 0 -...Reversed stability experiments for the synthetic osumilite KMg2(A12.TsMg0.25)(All.vsSi10.25)O30 determined...800 ~ C). At the lower thermal stability limit osumilite + H 2 0 vapor break down to cordierite + K fe...respectively. The dependence of osumilite stability on water fugacity makes osumilite a sensitive indicator mineral...about 0.8 Kbar. Introduction The rare mineral osumilite (K,Na)(Mg,Fe,Mn)z(A1,Mg,Fe3+)3 (Si,A1)lzO3o, has |  | | Journal (article/letter/editorial) | | in silicates. In the case of the isostructural osumilite, ideally K(Mg,Fe2+,Mn)2(Al,Fe3+)3(Si,Al)12O30...behavior and site locations for Fe2+ and Fe3+ in osumilite are not fully understood. Generally, most Fe is...Mössbauer spectrum of a sample of osumilite richer in Fe3+ (i.e., Obsidian Cliffs, in Goldman & Rossman 1978)...tetrahedra of 1.148. Analogous values for T2 in osumilite are 239 and 1.07, respectively, using data of...(1988a). The variance of the octahedron angle for osumilite is 114, and the mean elongation of the octahedra |  | | Journal (article/letter/editorial) | | 72, 123-143 (1980) 9 by Springer-Verlag 1980 Osumilite-Sapphirine-Quartz Granulites From Enderby Land...hypersthene-sillimanite-quartz and osumilite on a regional extent. Osumilite is present in a variety of mineral...theoretical analysis of the phase relations involving osumilite in the chemical systems KzOM g O - A120 3 - SiO...Mg-system the lower temperature stability limit of Mg-osumilite is inferred to be defined with increasing pressure...iron-bearing systems an important reaction involving osumilite is Os + Gt-~ Cd § Hy § Kfeld + Qtz. * Published |  | | Report (issue) | | .....................................58 Pavlof Sister.......................................................................................173 Ruby Mountain.....................................................................................173 Level Mountain.....................................................................................183 Satah Mountain............................................................................................257 Oregon............................................... |  | | Journal (issue) | | Mrs. Peg Norton. President 11945 Magnolia Blvd., North Hollywood, CA 91607 Lee Hollinshead. First Vice-President...Beers Rd. March 19-20-Gaithersburg, MD-Montgomery County Fairground, 16 Chestnut Street March 19-20-Sacramento...fabrication, production and fewer parts, we can pass the savings on to you. 2-40-95..........••.•......Petersburg, FL Mar. 26•27 - Roseville Gem Show Placer County Fairgrounds, Roseville, CA Mar. 25-27 - 8th Annual...jlobt~to tje-& ~S~ol ~.Lode~S~, AT THE STANISLAUS COUNTY FAIRGROUNDS TURLOCK, CALIFORNIA MARCH 12. 1977 |  | | Book | | Iaria from the Howard-Montgomery quarry, Howard County, Maryland (by J. S. White) 25:53-54 AFGHANISTAN...ALABAMA Iron phosphate mineral locality at Indian Mountain, Alabama (by H. Harwood) 5:241-244 Iron-manganese...Iron-manganese phosphates of the Williams pegmatites, Coosa County, Alabama (by P. B. Leavens & T. A. Simpson) 6:66-73...18:65-74 Phosphate microminerals of the Indian Mountain area [Georgia and Alabama] (by J.B. Gordon, Jr...ALICE GLORY HOLE The Alice glory hole, Clear Creek County, Colorado (by T. A. Hanson & W. B. Craft) 18:185187 |  | | Report (volume) | | Bibliograp~y- of North Anlerican Geology, 1969 ~ ' ~ SURVEY - • r -:-...- .... -- - " --........._ . B U L L E T I_N Bibliography of North Ameri an Geology, 196 GEOLOGICAL SURVEY BULLETIN...Bibliography Index . . . . VII III BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY 1969 INTRODUCTION The current...current annual volume of the "Bibliography of North American Geology" lists publications that appeared during...during 1969 concerning the geology of the North American continent, Greenland, the West Indies and adjacent |  | | Book (edition) | | abbreviations: Rep. (republic), prov. (province), co. (county), munic. (municipio), pref. (prefecture), dept...always included in text, except in the cases of the USA, UK, and the provinces Ontario and Quebec in Canada...abbreviations used are as follows: Mt. (mount or mountain), Mts. (mountains), R. (river), Is. (island),...localities of magmatic origin (in the sequence North and South America and Greenland, then Europe, Asia...those of pegmatitic origin in the same sequence: North and South America and Greenland, then Europe, etc |  | | Journal (issue) | | Dungey Brusilov Mts. Reference Peak Monte Arci Obsidian Cliffs Tieveragh Malyi Nepiskol Nain Rogaland Blaue...Antarktis Antarktis Antarktis Antarktis Sardinien Oregon Nordirland Kaukasus Labrador Südnorwegen Eschwege/Deutschland...Eifelite, KNa 3 Mg,Si 12O:io, a New Mineral of the Osumilite Group with Octahedral Sodium. Contr. Mineral....The Mineralogical Record'" Inc., Thesen, Arizona, USA. FUCHS, L. H .; FRONDEL, G. and KLEIN, C. (1966):...Verlagsbuchhandlung. Stuttgart. MIYASHIRO, A . (1956): Osumilite, a new silicate mineral and its crystal structure |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Identification of Ore Minerals, 2nd ed., Elsevier-North Holland, New York, 1971. The word “opaque” may also...Asia 12. Middle East 13. African Countries, from north to south 14. Oceania 15. Australia 16. Antarctica...Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Puerto Rico Rhode...distance of 500 miles, from Nizhne Tagilsk in the north to Orsk in the south; in Siberia important placer...Tennant Creek, NT. In New Zealand, Hauraki Peninsula, North Island, and placer deposits in Nelson, Westland |
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Obsidian Cliffs, North Sister Mountain, McKenzie Pass, Lane County, Oregon, USA