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| o n Stamps Robert G. Myers 208 Smoky Quartz in the Libert y Hill Pegmatite Dick Dayvault 214 Turquoise...This month's cover shows some of the beauty and variety available to the mineral stan1p collecto r. Stamps...from EFMLS Clubs Florence G. Lyons DEPARTMENTS THE EASTERN FEDERATION OF MINERALOGICAL AND LAPIDARY...$1.25 cents. Add $3.00 for subscrip tions outside the U.S. and Canada. Foreign subscriptions must be paid...and ' FOSSIL on TAMPS An Interesting New Hobby for the Mineral Collector ROBERT G. MYERS 183S Camino del |
 | | Journal (issue) |
| o n Stamps Robert G. Myers 208 Smoky Quartz in the Libert y Hill Pegmatite Dick Dayvault 214 Turquoise...This month's cover shows some of the beauty and variety available to the mineral stan1p collecto r. Stamps...from EFMLS Clubs Florence G. Lyons DEPARTMENTS THE EASTERN FEDERATION OF MINERALOGICAL AND LAPIDARY...$1.25 cents. Add $3.00 for subscrip tions outside the U.S. and Canada. Foreign subscriptions must be paid...and ' FOSSIL on TAMPS An Interesting New Hobby for the Mineral Collector ROBERT G. MYERS 183S Camino del |
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| sediments; the erosional products of some 200 million years. Few, if any Mesozoic rocks appear within the state...Pleistocene debris. The state was buried completely four times by Ice Age glaciers, leaving the land surface...nearly level but with some fairly rugged low hills in the southeastern corner. There are few localities containing...worthwhile gems or minerals, although excavations in the underlying black, Upper Devonian (New Albany) shales...ranks first in the nation in the production of limestone and dolomite, and second in the production of |
 | | Book (volume) |
| sediments; the erosional products of some 200 million years. Few, if any Mesozoic rocks appear within the state...Pleistocene debris. The state was buried completely four times by Ice Age glaciers, leaving the land surface...nearly level but with some fairly rugged low hills in the southeastern corner. There are few localities containing...worthwhile gems or minerals, although excavations in the underlying black, Upper Devonian (New Albany) shales...ranks first in the nation in the production of limestone and dolomite, and second in the production of |
 | | Book (volume) |
| A Location Guide for Rock Hounds in the United States SOUTH DAKOTA This northwestern Great Plains state...elev. From 1,000’ on the eastern border with Montana and Iowa to 3,500’ along the western boundary with...with Wyoming. In the far western counties of Lawrence, Meade, Custer and Pennington the land rises abruptly...abruptly into the 6,000 sq. mi. Black Hills region enclosed by the Belle Fourche and Cheyenne rivers. These...These pine covered mountains, higher than the Alleghenies, culminate in Harney Peak in southern Pennington |
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| Clark County P. U. D. Building 1200 Fort Vancouver Way Vancouver, Washington Schedule for the day; 9:00...9:00 am 9:30 am Doors open at the PUD building for table set up. Helpers needed. Meeting starts: (trading...cookies, pie, or cake to add to the lunch. 1:30pm Business meeting plus the group report on collecting spots...developments in the research on Washington Pass minerals. 5:00 pm Dinner will be at the County Buffet in Vancouver...Presidents Page by Rudy Tschernich It is time for the Fall 2012 meeting. I hope you have been either out |
 | | Journal (article/letter/editorial) |
| subduction-related metamorphic rocks: Characterization of the subducted component GRAY E. BEBOUT,I** JEFFREY G...525 I koacl Branch Road, NW Washington DC 200 15 USA 2Department of Terrestrial Magnetism, Carnegie Institution...DC’20015, USA ‘Keith-W&s Geological Laboratories, Rice University, Houston, TX 7725 1, USA (Received...accepted in revisedfirm November 18, 1992) Abstract-The mobility of B and Be in HzO-rich fluids and felsic...metamorphic rocks of the Catalina Schist, California. In metasedimentary rocks, B/Be and the range in B/Be decrease |
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| PA 18015, USA b Department of Geology, University of South Florida, Tampa, FL 33620, USA c Department...TX 77251, USA d Department of Physical Sciences, Kutztown University, Kutztown, PA 19530, USA Received...influence the cycling of volatile components, including some trace elements, in subduction zones. The nature...on the thermal structure of individual convergent margins. A recent model for metamorphism of the Catalina...affords a unique evaluation of the effects of varying prograde P - T paths on the magnitudes of devolatilization |
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| BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA VOL. 71. PP. 99-126. 3 FIGS.. 1 PL. FEBRUARY 1960 TERTIARY...A PORTION OF THE CENTRAL CASCADE MOUNTAINS, WASHINGTON BY ROBERT J. FOSTER ABSTRACT The Central Cascade...metamorphic rocks to the north, Tertiary marine rocks to the west, and younger volcanic rocks to the south and east...Tertiary basins of the same general age. This fault cuts Eocene rocks and is older than the Snoqualmie granodiorite...granodiorite. East of the fault the structures are open. The Swauk arkose unconformably covers preTertiary |
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| ORECiON CiEOLOCiY formerly THE ORE BIN published by the Oregon Department of Geology and Mineral Industries...1979 Volume 41, Number 7 Published monthly by the Stale of Oregon Department of Geology and Mineral...Mineral Industries (Volumes I through 40 were entitled The Orf Bin). Governing Boarel l eeanne G. MacColl,...Availabl e back issues of The Ore Bin: S.25 at counter, S.50 mai led. The tragic death in April of a...Each year, the Oregon Departmenl of Geology and Mineral Industries prints warnings about the dangers of |
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| and Cascade Range, USA) exhibit similar features of zeolitization associated with the interaction between...flow rocks and fresh water as well as the thermal history of the volcanic sheet. Results are reported...reported of an experimental study which determined the conditions of hydrothermal crystallization under constant...water (pH = 6.3) with a fluid/rock mass ratio of 10. The starting materiafs correspond to different types...phillipsite plus kaolinite assemblage which represents the chemical limited system SiO>-A1203-CaO-&O-HZO, f |
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| S. DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY Preliminary Geologic Map of the Mount Baker 30-..., and E.H. Brown4 Prepared in cooperation with the Washington State Department of Natural Resources...S.Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade...purposes only and does not imply endorsement by the U.S. Government. iu.S.G.S., Menlo Park, California...Washington, AJ-20, Seattle, Washington 98195 3SWMD, King County Department of Public Works, Seattle, Washington |
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| THE SALIENT FEATURES OF THE GEOLOGY OF OREGON. WARREN DUPRE SMITH AND EARL L. PACKARD University of Oregon...BIBLIOGRAPHY OF THE MORE IMPORTANT ARTICLES INTRODUCTION No article or book purporting to sum up the known...known geology the whole of Oregon has yet been published. of Even now the time has not arrived to essay... account of the salient features, and on the other hand will afford the workers in the field a clearer...L. PACKARD the problems involved. The writers are personally acquainted with much of the field and have |
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| naturally deformed amphibolites from the northern Cascades, NW USA: methodology and regional aspects BERND...340 Kell Hall, Georgia State University, Atlanta, USA Abstract: Neutron texture analyses of quartz-beating...amphibolite mylonites from the Windy Pass thrust, Cascades Crystalline Core (Washington/USA) reveal pronounced...presented by a systematic analytical approach to the experimental diffraction data processing. Clino-amphiboles...circle approximating the foliation plane as well as a-axes maxima close to the macroscopic lineation |
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| Geological Survey (1902, and 1921) GEOLOGIC MAP OF THE MT. BARING-GUNN PEAK. AREA, CASCADE RANGE, WASHINGTON...Company, Ventura, Calif. Crystalline Klippen in the Index District, Cascade Range, Washington Abstract:...Peak, and Mer- Emplacement of the klippen probably preceded chant Peak in the Cascade Range 40 miles east...east of deposition of the Late Cretaceous and Paleocene Seattle, two klippen of hornblende-rich migmatitic...contact metamorphism ranging from greenschist marbles. The klippen are composed of schistose to pyroxene-hornfels |
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| Southern California, Los Angeles, CA 90089-0740, USA a r t i c l e i n f o Article history: Received...Microstructure Mineral zoning Pluton a b s t r a c t The hypothesis that granites (sensu lato) commonly undergo...supported by microstructural evidence, especially the abundance of non-truncated zoning patterns in mineral...quartz and K-feldspar. The contrast between these two situations is probably the result of felsic gneisses...reactions and regional deformation, especially in the presence of water released pervasively from dehydration |
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| The Caledonides of the British Isles--reviewed. 1979. Geological Society of London. The petrogenesis...petrogenesis of Old Red Sandstone volcanic rocks of the western Ochils, Stirlingshire W. J. French, M. D. Hassan...have rims of sanidine. The intrusions are generally more acid than the lavas and the differentiation trend...subtraction of olivine and feldspar. Formation of the secondary magmas may have been due to removal of...system generated some 250 km below the contemporary surface. The rocks match other Old Red Sandstone |
 | STOWELL, H., BULMAN, G., TINKHAM, D., ZULUAGA, C. (2011) Garnet growth during crustal thickening in the Cascades Crystalline Core, Washington, USA. Journal of Metamorphic Geology, 29 (6) 627-647 doi:10.1111/j.1525-1314.2011.00933.x | Journal (article/letter/editorial) |
| during crustal thickening in the Cascades Crystalline Core, Washington, USA H. STOWELL,1 G. BULMAN,1,2...Sciences, Box 870338 The University of Alabama, Tuscaloosa, AL, 35487-0338 USA (hstowell@geo.ua.edu)...800 Fairway Dr., Deerfield Beach, FL, 33441-1830 USA 3 Department of Earth Sciences, Laurentian University...magmatic arc rocks of the Insular Superterrane. Voluminous tonalitic magma of the Mount Stuart batholith...with initial intrusion prior to garnet growth in the metasedimentary rocks. Arc plutonism then shifted |
 | | Report (issue) |
| U.S. DEPARTMENT OF THE INTERIOR UNITED STATES GEOLOGICAL SURVEY ASSESSMENT OF UNDISCOVERED PORPHYRY...PORPHYRY COPPER DEPOSITS WITHIN THE RANGE OF THE NORTHERN SPOTTED OWL, NORTHWESTERN CALIFORNIA, WESTERN OREGON...S. Geological Survey editorial standards or with the North American stratigraphic code. Any use of trade...purposes only and does not imply endorsement by the U.S. Government 1 Menlo Park, CA 94025 1991 CONTENTS...Known and possible porphyry copper deposits within the Cascade Range showing alternative names, reserve |
 | John, David A., Lee, Robert G., Breit, George N., Dilles, John H., Calvert, Andrew T., Muffler, L.J. Patrick, Clynne, Michael A. (2019) Pleistocene hydrothermal activity on Brokeoff volcano and in the Maidu volcanic center, Lassen Peak area, northeast California: Evolution of magmatic-hydrothermal systems on stratovolcanoes. Geosphere, 15. 946-982 doi:10.1130/ges02049.1 | Journal (article/letter/editorial) |
| hydrothermal activity on Brokeoff volcano and in the Maidu volcanic center, Lassen Peak area, northeast...Middlefield Road, Menlo Park, California 94025, USA Mineral Deposits Research Unit, University of British...Denver, Colorado 80225, USA 4 Oregon State University, Corvallis, Oregon 97331, USA 5 Volcano Science Center...Middlefield Road, Menlo Park, California 94025, USA 1 14 figures; 5 tables; 1 set of supplemental files...hydrothermal activity on Brokeoff volcano and in the Maidu volcanic center, Lassen Peak area, northeast |
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| scattered localities in western Washington State. The dominant members of this assemblage are harzburgite...iemite, and kerato phyre are abundant locally. The volcanic rocks are overlain by pelagic and turbiditic...Jurassic age for the plutonic members of this assemblage, whereas fossils from the pelagic sediments...Cretaceous age for the volcanic rocks with which they are associated. At most localities the primary relations...relations of the mem bers of this lithologic association have been obscured by tectonic disruption related |
 | | Journal (article/letter/editorial) |
| 212--238 (1968) Quaternary Lavas from the Southern Cascades, Western U.S.A. A. L. SY~TH and I. S. E...three centers in the Cascades (Lassen, Medicine Lake, Mr. Shasta) have been investigated. The lavas are weakly...or orthopyroxene; these phases are also found in the groundmass. Titanomagnetite is a groundmass phase...found in the groundmass in some of the basic lavas. Orthopyroxenes are present only in the salic lavas...show an increase in calcium with increasing iron. The range in composition shown b y both phenoeryst and |
 | | Report (volume) |
| and Mineralogy, Bulletin No. 235 DEPARTMENT'OF THE INTERIOR UNITED STATES GEOLOGICAL SURVEY CHARLES...HECTOR GEOLOGICAL RECONNAISSANCE ACROSS THE CASCADE RANGE NEAR THE FORTY-NINTH PARALLEL GEORGE OTIS SMITH............................. Primary divisions of the region..--.........-.--.-.--.-.-.. Okanogan Valley.............. ...................,.... 44 . Along the Columbia...........................................Chopaka.................. .47 Composite character of the granite belt_.................. 47 Biotite-granite |
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| iittl"o4u.ctioit by Wendell Wil@on A Supplement to the Mineralogical Record, No1Jember-December 2014 _...Mineral Collections 1n Colorado A Supplement to The Mineralogical Record November-December 2014 Volume...Circulation Director: Thomas M. Gressman Publi shed by The Mineralogical Record, lnc. 5347 N. Ridge Spring Place...shipping Hardcover: $70 plus shipping Order through The Bookstore at www.MineralogicalRecord.com Frontcover...Frontcover Smoky quartz with amazonite, 11.8 cm, from the "Smithsonian packet," Smoky Hawk claim, Florissant |
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| OREGOM GEOLOGY published by the Oregon Department of Geology and Mineral Industries VOLUME 45, NUMBER...45, NO. 7/8 JULY/AUG. 1983 Published monthly by the State of Oregon Department of Geology and Mineral...Mineral Industries (Volumes I through 40 were entitled The Ore Bin). Governing Board C. Stanley Rasmussen ...Clatsop County Diamond Shamrock has drilled Clatsop County 33-11 in sec. 11, T. 6 N. , R. 6 W. The well...on June 4. The company still has permits to drill three more wells in Clatsop County, and the next location |
