 | | Report (issue) | | Pegmatite Investigations 1942-45 New England By EUGENE N. CAMERON and OTHERS GEOLOGICAL SURVEY PROFESSIONAL..._______ _ Geology of the pegmatite districts of New Hampshire_ Rock units ________________________________...pegmatites ___________________ _ Pegmatites of the Grafton and Keene districts __ _ Sources of pegmatites...quality __ AnalyHis of the wartime mica industry of New England ________________________________________...Androscoggin County ______________________ _ Berry feldspar quarry __________________ _ Cumberland County ___ |  | | Report (issue) | | Beryl Resources of New Hampshire GEOLOGICAL SURVEY PROFESSIONAL PAPER 353 Prepared on behalf of the...with the New Hampshire State Planning and Development Commission Beryl Resources of New Hampshire By JAMES...Commission^ and in part in cooperation with the New Hampshire State Planning and Development Commission UNITED...Page, James Jeffers, 192ftBeryl resources of New Hampshire, by James J. Page and David M. Larrabee. Washington...Commission, and in part in cooperation with the New Hampshire State Planning and Development Commission. Bibliography: |  | | Report (volume) | | .......................................... 11 Grafton quartsdte..-.................--.....--..---..---...Rock ................................. 22 Dexter quarry............................................ 24...Saylesville granite quarry .........:......................... 31 Contact rock from the Grafton quartzite .....6. Calcite crystal from the Harris bed at Lime Rock.................... Calcite crystal from the Harris...bed at Lime Rock..................... Calcite crystal of the square type from the Harris bed at Lime |  | | Journal (issue) | | & M. Koval Mineralogy of the Killie mine, Elko County, N ev a d a ........................413 by G. E......................423 by L. H. Conklin What's new in minerals? ......................................come. In fact, the article in this issue on D uff quarry pyrite would probably not otherwise have been pubÂ...Taylor-Merchant Corporation, 212 West 35th Street, New York, NY 10001. NEW BRITISH MAGAZINE Mineral publications from...out only very rarely (yearly?). But now there is a new and modern looking entry entitled Rockbottom , UK |  | | Report (volume) | | During all of these pauses in the work the coining of new names went on apace, until the lexicon as it stands... 5 in., inch or inches. Circ., Circular. Co., County or Company. Indus., Industrial. Inst., Institute...nonconformfm., formation. ably. fms., formations. n.s., new series. ft., feet or foot. Occ., Occasional. Gd....that lower part of Howard ls. intertongues with upper part of Severy sh., which accounts for Aarde sh...River. Marble, of seeming upper Cherokee equivalence, appears along upper limit of Abbeville-York zone |  | | Report (volume) | | Eocene Paleocene Upper (Ln,te) Lower (Early) Upper (Late) Middle (Middle) Lower (Early) Upper (Late) Middle...Lower (Early) Upper (Late) Lower (Early) Upper (Late) Middle (Middle) Lower (E::trly) Upper (Late) Lower...(Early) Upper (Late) Middle (Middle) Lower (Early) Upper (Late) Middle (Middle) Lower (Early) Upper (Late)...Lower (Early) Upper (Late) Middle (Middle) Lower (Early) Informal subdivisions such as upper, middle, and...and lower, or upper and lower, or younger and older may be used locally. Estimated ages o time boundaries |  | | Book | | Foreword Br0gger's 1890monograph on the minerals new species in his publications from 1884 Mr Larsen...pegmatites of what we to 1890.Since then, five new species professionally educated mineralogist. today...Region, 2007),and was recently honoured by the new species alflarsenite (2009).This leads to a total...at the time of complex are type localities. six new mineral species, are remarkable. publication, had...120years Starting with pyrochlore in 1826,eleven new after Br0gger is a milestone in Norwegian GunnarRaade |  | Minor, S.A., Sawyer, D.A., Wahl, R.R., Frizzell, V.A., Schilling, S.P., Warren, R.G., Orkild, P.P., Coe, J.A., Hudson, M.R., Fleck, R.J., Lanphere, M.A., Swadley, W.C., Cole, J.C. (1993) Preliminary geologic map of the Pahute Mesa 30'x 60' Quadrangle, Nevada. Open-File Report Vol. 1993 (93-299) US Geological Survey doi:10.3133/ofr93299 | Report (issue) | | facilitate editing and other compilation tasks. New geologic field data, which were mapped mostly by...older stratigraphic units in the region and proposed new caldera sources for some of the major ash-flow tuffs..."phenocryst-rich" and "-poor" are substituted for "crystal-rich" and "-poor", respectively, to distinguish...anorthoclase, and plagioclase), for mafic minerals (biotite, hornblende, arfvedsonite, orthopyroxene, clinopyroxene...phenocryst content Term aphyric crystal-poor (no modifier) crystal-rich very crystal-rich (median modal %) <0 |  | Wahl, R.R., Sawyer, D.A., Minor, S.A., Carr, M.D., Cole, J.C., Swadley, W.C., Laczniak, R.J., Warren, R.G., Green, K.S., Engle, C.M. (1997) Digital geologic map database of the Nevada Test Site area, Nevada. Open-File Report Vol. 1997 (97-140) US Geological Survey doi:10.3133/ofr97140 | Report (issue) | | 2Las Vegas, Nevada 3Los Alamos National Laboratory, New Mexico 4Menlo Park, California 1997 INTRODUCTION...compiled the new surficial geology and stratigraphy in the NTS area and Cole compiled the new geology and...pre-Tertiary sedimentary rocks in the NTS area. New geologic field data were digitized directly from...revisions of the NTS area were also made by adding new field and stratigraphic data to the published 1:24...1:24,000-scale geologic data (Figure 2b). All new digital files as well as the pre-existing Pahute Mesa |  | Sawyer, David A., Wahl, R.R., Cole, J.C., Minor, S.A., Laczniak, R.J., Warren, R.G., Engle, C.M., Vega, R.G. (1995) Preliminary digital geologic map database of the Nevada Test Site area, Nevada. Open-File Report Vol. 1995 (95-567) US Geological Survey doi:10.3133/ofr95567 | Report (issue) | | 2Las Vegas, Nevada 3Los Alamos National Laboratory, New Mexico 1995 INTRODUCTION Work on geologic compilation...compiled the new geology and stratigraphy of the PreTertiary sedimentary rocks in the NTS area. New geologic...of the of the NTS area were also made by adding new field and stratigraphic data to the published 1:24...Figure Ib; Sources of Original Geologic Data). All new digital files as well as the pre-existing Pahute...and, in the case of scan files, vectorization. The new map data were also imported into AutoCAD for editing |  | | Book | | metamorphic phenomena. 44849 PREFACE VI No new rock names have been coined; we have striven, on...Professor H. H. Hess for Triassic diabases from New Jersey; Professor R. T. Prider for leucitic rocks...tempera¬ tures into other minerals, of different crystal structure. Olivine, for example, may be transformed.../ Andesine / Hornblende \ Oligoclase . Biotite \ Albite Quartz Potash feldspar I Zeolite <-...high-temperature members of both series generally crystal¬ lize together. That is why rocks like gabbro, |  | | Journal (article/letter/editorial) | | reference to the mode of origin of the index minerals biotite, almandine, staurolite, etc., in crystalline schists...minute flakes of native gold in the normal grey biotite-granite were described and specimens were exhibited...A suite of assays of apparently barren tor- and quarry-granites, graphic granite, pegmatites, and vein...1-161 grains of silver to the ton. A sample of biotite yielded 108 grains of silver to the ton. Both metals...of previous work on muscovite, the analyses of biotite and phlogopite are recalculated in molecular proportions |  | Minor, S.A., Orkild, P.P., Sargent, K.A., Warren, R.G., Sawyer, D.A., Workman, J.B. (1998) Digital geologic map of the Thirsty Canyon NW quadrangle, Nye County, Nevada. Open-File Report Vol. 1998 (98-623) US Geological Survey doi:10.3133/ofr98623 | Report (issue) | | Geologic Map of the Thirsty Canyon NW Quadrangle, Nye County, Nevada By Scott A. Minor1 , Paul P. Orkild 1,...Colorado ^-decQasQd ^Los Alamos National Laboratory, New Mexico 1998 DESCRIPTION OF MAP UNITS [Mapped surficial...and plagioclase), for ferromagnesian minerals (biotite, hornblende, orthopyroxene, clinopyroxene, and...phenocryst content Term aphyric crystal-poor (no modifier) crystal-rich very crystal-rich (median modal %) <0...Reported ages of volcanic units are based mainly on new ^Ai/^Ai age determinations (Sawyer and others, 1990; |  | | Report (issue) | | Map of Southwestern Sequoia National Park, Tulare County, California By Thomas W. Sisson and James G. Moore...Map of Southwestern Sequoia National Park, Tulare County, California By Thomas W. Sisson and James G. Moore...topographic quadrangle (sheet 2), both in Tulare County. Mapping was performed mainly on the 1:24,000-scale...metamorphic recrystallization. Quartzofeldspathic biotite schist and hornfels encompass metaargillites with...valleys, spanning from Crystal Creek south to Bullfrog Lakes (Franklin and Crystal Creek units of Busby-Spera |  | Fridrich, Christopher J., Minor, S.A., Ryder, P.L., Slate, J.L., Warren, R.G., Hildenbrand, T.G., Sawyer, D.A., Orkild, P.P. (1999) Geologic map of the Oasis Valley Basin and vicinity, Nye County, Nevada. Open-File Report Vol. 1999 (99-533) US Geological Survey doi:10.3133/ofr99533b | Report (issue) | | map of the Oasis Valley basin and vicinity, Nye County, Nevada Mapped and compiled by: C. J. Fridrich1...compilation is new geologic map data, as discussed below. In addition, the cross sections incorporate new geophysical...This map covers nine 7.5-minute quadrangles in Nye County, Nevada, centered on the Thirsty Canyon SW quadrangle...quadrangle map (O'Connor and others, 1966) and eight new quadrangle maps, two of which have been previously...previously released (Minor and others, 1997; 1998). The new bedrock mapping was completed by Minor from 1991 |  | | Journal (article/letter/editorial) | | BYERS Los Alamos National Laboratory, Los Alamos, New Mexico ROBERT B. SCOTT U.S. Geological Survey, Denver...relatively mafic (basaltic to dacitic) volcanism. New cycles begin with magma compositionsthat are less...chemical trends within cycles are consistent with crystal fractionation of the observed phenocrysts and accessory...mechanisms must have operated in conjunction with crystal fractionation to produce the observed chemical...successively emplaced and differentiated in the upper crust beneath TM-OV. Members of petrochemical cycles |  | | Report (issue) | | causes these lithologies to look the same. The upper and lower contacts of lava flows locally exhibit...Prow Pass a kilometer west of the mapped area. In upper Paintbrush Canyon in the north-central part of the...pyroclastic flow, fallout, and surge deposits. The upper contacts of the lava flows locally are obscure because...stratigraphic horizons within the Calico Hills Formation in upper Paintbrush Canyon. The third lava flow-bearing horizon...outcrops at Busted Butte, 14 kilometers south of upper Paintbrush Canyon. These five pyroclastic deposits |  | | Report (issue) | | McKay (1965) show that this tuff interval is an upper vapor-phase zone of the Rainier Mesa Tuff. Methods...others, 1976) were examined and locally revised. New mapping (1:12,000 scale) was principally conducted...in non-welded and poorly welded zones of these upper units also formed discrete shear planes. In contrast...restriction of hanging-wall drape folds to the upper stratigraphic levels of this sequence of Theologically...tectonics to obtain the regional stress, III, A new rapid direct inversion method by analytical means: |  | | Journal (issue) | | KRISTALLE Est.1971 Laguna Beach, California, USA • Tel: +1 949 494 5155 • Email: info@kristalle.com...by C. J. Stefano & J. Betts The Irving Materials quarry, Anderson, Indiana ..............................Stefano Giroux Point, the Bagdad mine, Yavapai County, Arizona ........................................................ 260 Columns What’s New in Minerals:    New Mexico Mineral Symposium 2021 ...........$278/two years, (Canada) $231/one year, (outside USA other than Canada) $325 for one year Subscription |  | | Journal (article/letter/editorial) | | During the onset of caldera cluster volcanism at a new location in the Snake River Plain (SRP), there is...quartz-hosted melt inclusions from pumice clasts from the upper and lower Arbon Valley Tuff (AVT) to gain insight...consisting of early and late erupted members (lower and upper AVT, respectively) with extremely radiogenic Sr...these elements is derived from melts of Archean upper crust. Our data reveal distinctive features of the...Geological Sciences, University of Oregon, Eugene, OR, USA 2 Present Address: Department of Geological Sciences |  | | Journal (article/letter/editorial) | | apatite was 20 s on peak time and 10 s on lower and upper background 198 positions. The counting time for...was 40 s on peak time and 199 20 s on lower and upper background positions. Detection limit and precision...hornblende 219 (10-15 vol. %), quartz (7-10 vol. %), biotite (2-5 vol. %), K-feldspar (1-2 vol. %), 220 other...K-feldspar xenocrysts (up to 1.1 cm, Fig. 4a, b), first crystal phase in acidic magma, 228 within quartz diorite...groundmass 232 of plagioclase (18-25 vol. %), biotite (2-5 vol. %), quartz (2-4 vol. %) and K-feldspar |  | | Book | | role of mineralogy as a science. Some aspects of crystal growth are discussed in the hope that such a discussion...are based on such observational properties as crystal habit, color, luster, hardness, cleavage, and specific...IBIS VANDERS F. KERR PAUL Columbia University New York \ Contents CHAPTER 1 MINERALS PAST AND PRESENT...PRODUCTS REFERENCES CHAPTER 2. CRYSTAL GROWTH 8 8 THE LIFE OF A CRYSTAL IN NATURE Emergence of Crystals...Crystals Nucleation and Growth Magnitude of Crystals Crystal Faces Striated Faces Modes of Aggregation .Oriented |  | | Book (edition) | | Co\·er photo: \\ 7 ulfenite, Rowley Mine, Maricopa County, 4 cm high specimen, Evan and Melissa Jones Collection... MINERALOGY OF ARIZONA,FOURTHEDITION Introduction Many new mineral species have been documented in Arizona since...Mineralogy of Arizona was published in 1995. This new edition adds to the extensive work of the previous...authors, who built the foundation on which this new effort rests. This edition is dedicated to these...others have been discredited for various reasons. The new analytical equipment available today has made it |  | | Report (issue) | | Scientific Publications Subjects 3 1819 00077300 8 New USGS open-file report The follov/ing report was...Chief, Office of Scientific Publications Subject: New USGS open-file report The fol lov/ing report was...breccias. About 29 m.y. ago, a widespread sheet of crystal-rich ash-flow tuff (Oligocene Needles Range Formation)...Between 27 and 26 m.y. ago a sequence of distinctive crystal-rich ash tlows was erupted from a center in the...the more distinctive of the ash-flow units in the upper part. Between 21 and 17 m.y. ago, repeated rhyolitic | | | Report (issue) | | Cretaceous)—Fine- to medium-grained hornblende-biotite granodiorite with indistinct plagioclase phenocrysts...1987]) (Late Cretaceous)— Medium-grained hornblende-biotite granodiorite that has prominent grains of hornblende...from metarhyolite tuff (Kmrt) by more abundant biotite and hornblende, and by absence of relict quartz...Home (Late Cretaceous)—Medium-grained hornblende-biotite granodiorite near southwest corner of map area...quartzite; massive to medium bedded qb Quartz-biotite schist and hornfels (Mesozoic)—Encompasses quartzofeldspathic |
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