 | Collins, Donley S., Cobban, Robert R., Foord, Eugene E., Murphy, Jack A. (1989) Bibliography for update and revision of U.S.G.S. Bulletin 1114, Minerals of Colorado -- a 100 year record, by Edwin B. Eckel, Part A - Paper copy --Bibliography data file disks. Open-File Report Vol. 1989 (89-206) US Geological Survey doi:10.3133/ofr89206a | Report (issue) | | Survey Denver, Colorado Department of Geology, Denver Museum of Natural History Denver, Colorado NOTE FOR...revision of U.S.G.S. Bulletin 1114, Minerals of Colorado A 100 year record, by Edwin B. Eckel By Donley...Prepared in cooperation with Friends of Mineralogy - Colorado Chaptar, and the Denver Museum of Natural History...references dealing with the mineralogy of the state of Colorado. It is part of a more than 10 year effort to update...and revise U.S.G.S. Bulletin 1114, Minerals of Colorado: A 100 year record, by Edwin B. Eckel (1961). |  | | Report (volume) | | Minerals of Colorado: A 100- Year Record By EDWIN B. ECKEL GEOLOGICAL SURVEY BULLETIN 1 1 14 A...knowledge____________________________________ Future of Colorado mineralogy______________________________________...mineral localities and metallic mineral deposits of Colorado ________________________________ In pocket III...mineral localities and metallic mineral deposits of Colorado, has not been included in this reprint. Many of...especially Fischer and others, 1946). MINERALS OF COLORADO: A 100-YEAR RECORD By EDWIN B. EcKEL ABSTRACT |  | | Journal (article/letter/editorial) | | Arthur C., Jr. Beryl from the Oxford mine, Troup County, Georgia Bailey, Roy A. Volcanism and the upper...[Resultsof etchingmethsdson crystalsof the mica group] [book review] Barrett, CharlesS. Microstructuralinvestigationof...Physicaland chemical data for crandallite from Alachua County, Florida Boles, James R. Composition,optical properties...d pressureofvarious lava types with spinel-and garnet-peridotite Carr, R, M. Stabilityfieldsof hydrationstatesof...Melanophlogitefrom Mount Hamilton, Santa Clara County, California Cooper,W. F. Chargerefinementof a light-atommineral |  | | Report (issue) | | Geology of Precambrian Rocks Central City District Colorado GEOLOGICAL SURVEY PROFESSIONAL PAPER 474-C Prepared... Geology of Precambrian Rocks Central City District Colorado By P. K. SIMS and D. J. GABLE SHORTER CONTRIBUTIONS...1918Geology of Precambrian rocks, Central City district, Colorado, by P. K. Sims and D. J. Gable. Washington, U...district, Colorado. 1964. (Card2) 1. Geology, Stratigraphic Pre-Cambrian. 2. Geology Colorado Gilpin Co...Gilpin County, Colorado. 2. Geologic sections of the Central City district, Gilpin County, Colorado. 3. |  | | Report (issue) | | Series 30 Bibliography and Index of Colorado Geology, 1984-1989 Colorado Geological Survey Department of...Resources Denver, Colorado 1990 Information Series 30 Bibliography and Index of Colorado Geology, 1984-1989...Institute under contract to the Colorado Geological Survey Colorado Geological Survey Department of...of Natural Resources Denver, Colorado 1990 ii FOREWORD In recognition of the need to more effectively...published literature on the state's geology, the Colorado Geological Survey is pleased to release Information |  | | Report (issue) | | obtained from lectures and publications by Avery A. Drake, Jr., USGS, who also reviewed the final manuscript...Topographic and Geologic Survey was able to respond to county health officials with details down to the level...zones at a house in Colebrookdale Township, Berks County, which came to the authoritiesā attention as having... . . . . . . . . . . . . Quarry L, Northampton County . . . . . . . . . . . . . . . . . . . . . . . ...C. K. Williams quarry, north part, Northampton County . . . . . . . . . . . . . . . . . . . . Granitic |  | | Journal (article/letter/editorial) | | Britain DISTRIBUTION OF TRACE ELEMENTS BETWEEN GARNET ~GACRYSTS AND HOST VOLCANIC LIQUIDS OF KIMBERLITIC...Planetary Institute 3303 NASA Road 1 Houston, TX 77058, USA and Frederick A. Frey Department of Earth and Planetary...MA 02139, USA ABSTRACT Abundances of rare earth elements, Hf, Se, Co, Cr and Th in garnet megacrysts...volcanic hosts or matrices are used to estimate garnet/liquid partition coefficients for these elements...more scatter (due in part to impurities in the garnet separates) but the partition coefficients tend |  | | Report (volume) | | of Precambrian rocks, Idaho Springs district, Colorado, by Robert H. Moench. (B) Geology and coal resources...of Precambrian Rocks, Idaho Springs District, Colorado By ROBERT H. MOENCH CONTRIBUTIONS TO ECONOMIC...Calcium-silicate gneiss ____ --------------------_____________ Garnet-hornblende-orthopyroxene gneiss______________________...OF PRECAMBRIAN ROCKS, IDAHO SPRINGS DISTRICT, COLORADO By RoBERT H. MoENCH ABSTRACT The Idaho Springs...gneiss, amphibolite, calcium-silicate gneiss and garnet-hornblendeorthopyroxene gneiss. The gneissic rocks |  | | Report (volume) | | the Freeland-Lamartine District, Clear Creek County, Colorado GEOLOGICAL SURVEY BULLETIN This report...the Freeland-Lamartine District, Clear Creek County, Colorado By J. E. HARRISON and J. D. WELLS GEOLOGY...DEPOSITS OF CLEAR CREEK, GILPIN, AND LARIMER COUNTIES, COLORADO GEOLOGICAL SURVEY BULLETIN 1032-B...(Lanagan) mine____________________________ Freeland group of mines____________________________________ Golden..._____________________________________________ Little Johnie group of mines__________________________________ Lone |  | | Journal (article/letter/editorial) | | (Fisher, David E.) 9 4 310 Basalt, K/Ar, Pliocene, Colorado, State Bridge (York, D., et al.) 11 4 333 Basalt...Constant Gneiss, Cambrian, Ordovician, Greenland Group, New Zealand, South Island (Adams, C. J.D.) 28 1...6 1 9 Sediments, Th/U, Holocene, Pacific Ocean, Drake Passage, East Pacific Rise (Holmes, Charles W.,...) 4 5 368 Shale, Sr/Rb, Precambrian, Onverwacht Group, South Africa (Hurley, Patrick M., et al.) 14 3...metasedimentary, U/Pb, discordance, Precambrian, Colorado, Eldora (Davis, G. L., et al.) 5 1 27 Zircon, |  | | Journal (article/letter/editorial) | | the garnet stability field, this observation questions the ubiquitous presence of residual garnet in the...system; Sm/Nd; eucrites; 176 Lu decay constant; garnet group; ilmenite fractionation 1. Introduction *...allow for garnet stability. Since much emphasis has been placed on Lu/Hf fractionation by garnet in the...Figs. 1 and 2). The Ā¢ve cumulates Moama, Moore County, Nagaria, Serra de MageĀ¤, and Talampaya stand out...Creek Pasamonte Peramiho Serra de MageĀ¤f Sioux County Stannern Talampayaf nā” 1297 nā” 3223 1998.71 nā” |  | | Journal (article/letter/editorial) | | crystal chemistry (MASON WOOD, 1979; NEWSOMand DRAKE, 1983) magmas. and BERGGREN, 1941; LANDERGREN, 1958:...(SiO&ā has been reported in minerals of the apatite group (ROUSEand DUNN, 1982; BUSECK and HOLDSWORTH, 1977;...MASON and BERGGREN (194 1) described a spessartite garnet (from a pegmatite) containing up to 4.4 wt.% P205...Na3A12P3012has a garnet structure and should be regarded as one of the end-members for garnet group minerals...of the upper layered zone and the upper border group. Both of these iron-rich rocks have PzOS contents |  | | Journal (article/letter/editorial) | | 139(19%)411-421 Sorption and diffusion of helium in garnet: implications for volatile tracing and dating T...We present data on He sorption in garnet obtained by loading garnet samples with He at 250 + 10 bar in...obtain the activation cm2/s> for He diffusion in garnet. energy (E, = 660 k :g kJ/mol) and frequency factor...1015~q+**~s~2) The results of our study suggest that garnet is probably one of the most retentive silicate...590ā and 630Ā°C. Accordingly, (U + Th)-He dating of garnet may provide information about the medium to high |  | | Journal (article/letter/editorial) | | range or just below the solidus, even at 22 GPa. Garnet (ga) and ferropericlase (fp) are the first liquidus...ferropericlase and is below 0.46 for garnet and perovskite. The KD (Si/Mg) for garnet and perovskite decrease slightly...the melt phase with mineral^melt KD (Ca/Al) for garnet and perovskite below 0.4. The partitioning coefficients...peridotites; high pressure; melting; perovskite; garnet group; periclase * Corresponding author. Tel.: +354-525-4496;...was provided by the compositions of coexisting garnet and perovskite in the enstatite^pyrope system [18] |  | | Journal (article/letter/editorial) | | Statistical solutions using major elements in low-Cr garnet (Hardman et al. in J Geochem Explor 186:24ā35,...adding trace elements to garnet-based diamond exploration programs. A new garnet classification scheme,...initially using a major-element based filter, uses garnet Sr contents and Eu anomalies to help identify low-Cr...Logistic regression . Trace elements Introduction Garnet as an indicator mineral is a useful tool for exploration...an indicator garnet as being either crust- or mantle-derived. A misclassification of garnet can lead to |  | | Journal (issue) | | Foord Fluorite from the Pine Canyon deposit, Grant County, New Mexico .....................................Hanson Ilmenite expitaxial on bixbyite from Sierra County, New Mexico .....................................COVER: FLUORITE from the Pine Canyon deposit, Grant County, New Mexico. (See the article on page 47.) The...UoKM v.8/#6 California Issue Benitoite, Gold, L.A. County Museum, Himalaya mine $7 v.9/#3 Kalahari rhodochrosite...(famous for Topaz, Red Beryl, etc.) $7 v,10/#6 Colorado-II Issue Locality Index, Amazonite, Mt. Antero |  | | Report (issue) | | Industrial minerals are now the most important group of commodities produced in the Prescott National...Coconino County in northeast PNF; and Arizona Bureau of Mines (1958) for other areas of Yavapai County. The...with up to no more than 10 to 15 percent fines (Drake, 1995). Fines add expense during extraction, dredging...(AHD) (1972) report on Yavapai county and ADOT (1975) report on Coconino County. Two alluvial formations have...iron occurrences in the Grand Wash Cliffs, Mohave County described by Schrader (1909) and located by Harrer |  | | Journal (issue) | | LeGrand, G .G . 58 The Future of Leadville, Colorado A metal-mining district turns to tourism; by...swap area, grab bag sales benefit scholarship al Colorado School of Mines; contact Joseph Payne. 3847 S...TA ROSA , CALI FORNIA: Show; Gem Faire ; Sonoma County Fairgrounds , 1350 Bennell Valley Rd.: Fri . 12-7...IZO NA: 45th annual show Ā· Gila County G em & Mineral Society; Gila County Fai r'. grounds, U.S. 60, 3 miles...& Mineral Society; Ame rican Le gion Hall , Bay County Fair Grounds, 15th SI. and Sherman Ave. ; Sat. |  | | Catalog/List | | elaphus nelsoni This is a large Bull Elk from Colorado in mint condition with excellent quality taxidermy...hemionus This big Buck was taken near Gunnison Colorado. He sports a nice 6 x 5 rack that measures 23Ā¾...$250-$450 53068āā WOOD DUCK DRAKE Aix sponsa This is a beautiful Drake, a male Wood Duck or Carolina...prettiest of all the North American ducks, with the drake being slightly more colorful than the hen. They...($14 min.) Applies To All Lots 53069āā PINTAIL DRAKE ON DRIFTWOOD Anas acuta acuta The Pintail gets its |  | | Book (volume) | | Kobuk jade locality. Descriptions of San Diego County, California, gemstones and the mines in which they...the generous assistance of many residents of that county. My special thanks are extended to Elbert H. McMacken... Topaz, Opal. IMPORTANT GEMSTONES The Feldspar Group, Spodumene, Tourmaline, Sodalite and Cancrinite...Jadeite), Rhodonite, Idocrase (Vesuvianite), The Garnet Group. Quartz FAMILY GEMSTONES RarRE AND UnusuaL... List of Illustrations . . . . . . . . . . . . . Garnet crystals Almandine from Wrangell Spessartite matrix |  | | Journal (issue) | | M. Pryce and J. Chester The Amity Area, Orange County, New Y o rk ............................... 85...Kearns Nomenclature Revisions in the Apophyllite Group: Hydroxyapophyllite, Apophyllite, andFluorapophyllite...used to bother me. I would be viewing a complex group of tourmaline crystals in a case at the Tucson show...comĀ The Malachite Chickadee. Natural malachite group, untrimmed, 1 cm in length, collected in the Mindola...115-year-old Oriental mine in Alleghany, Sierra County, California. In August, about five months after |  | | Book | | minerals reported but not yet validated, synonyms and group names, and various ill-defined substances of local...from the Franklin marble occurrences in Orange County, New York, was purchased in 1914 by the New York...mining activities in the area now called Sussex County were for iron. The earliest of the five iron furnaces...on magnetite ores began much earlier in Morris County, and the bog-iron deposits of the Pine Barrens...was built by Michael Rorick, William Potts, and a group of unidentified Englishmen from Trenton in about |  | | Journal (issue) | | the following people: COVER: AMETHYSTINE QUARTZ group 4 x 5 cm, collected in 1978 by Donald Elliott at...KEITH PROCTOR, 88 Raven Hills Court, Colorado Springs, Colorado 80919 USA; tel: (303) 598-1233 66 The Mineralogical...granitic rocks, with the Osier group overlying the Sibley. The Osier group consists of amygdaloidal basalt...breccia zones along the contact between the Sibley group rocks and the granitic rocks. The amethyst deposits...granitic rocks, and at the contact with the Sibley group. An early generation of veins of massive white quartz |  | | Journal (article/letter/editorial) | | JANUARY-FEBRUARY, 1970 Mg/Fe PARTITIONING IN GARNET AND BIOTITE FROM SOME GRANITIC, PELITIC, AND CALCIC...Mg/Fe for garnet-biotite pairs in calcium-rich metamorphic rocks from New Ilampshire of the garnet to kyanite...magmatic origin. In these rocks CaO and MnO in garnet is not directly related to metamorphic grade, as...between the partitioning of Mg and Fe in coexisting garnet and biotite, and the known or inferred geologic...relatively inconsequential for reactions of the type: Fe garnet{Mg biotite-Mg garnetf Fe biotite, and if these |  | | Report (issue) | | Inc. 3300 Penrose Place, P.O. Box 9140, Boulder, Colorado 80301 Printed in U.S.A. GSA Books Science Editor...S. Noller Kimberlite-transported nodules from Colorado- Wyoming; A record of enrichment of shallow portions...A note on newly discovered kimberlites in Riley County, Kansas William L. Mansker, Bill D. Richards, and...petrography of the Twin Knobs ttl lamproite, Pike County, Arkansas . 205 Michael A. Waldman, Tom E. McCandless...Potash Sulfur Springs igneous complex, Garland County, Arkansas Robert E. Zartman and J. Michael Howard |
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