 | | 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 |  | | 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 |  | Valley, P. M., Whitney, D. L., Paterson, S. R., Miller, R. B., Alsleben, H. (2003) Metamorphism of the deepest exposed arc rocks in the Cretaceous to Paleogene Cascades belt, Washington: evidence for large-scale vertical motion in a continental arc. Journal of Metamorphic Geology, 21 (2) 203-220 doi:10.1046/j.1525-1314.2003.00437.x | Journal (article/letter/editorial) | | Metamorphism of the deepest exposed arc rocks in the Cretaceous to Paleogene Cascades belt, Washington:...University of Minnesota, Minneapolis, Minnesota 55455 USA 2 Department of Earth Sciences, University of Southern...California 90089 USA 3 Department of Geology San Jose State University San Jose, California 95192 USA ABSTRACT...ABSTRACT The Swakane Gneiss and the overlying Napeequa Complex in the North Cascade range, Washington, were...continental arc, and are among the structurally deepest exposed rocks within the Cordilleran arcs of North |  | | 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 |  | | Journal (article/letter/editorial) | | 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 |  | | 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 |  | | 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 |  | | Report (issue) | | DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY Geochemical analyses of rock samples from the Black Butte...Butte District and Holderman Mountain area, Lane County, Oregon By Jocelyn A. Peterson1 Open-File Report...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. 1Menio Park, CA CONTENTS Introduction...collected from the Black Butte District and the Holderman Mountain area, Lane County, Oregon 9 FIGURES |  | 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 |  | | Journal (article/letter/editorial) | | 367 The Canadian Mineralogist Vol. 43, pp. 367-385 (2005) THE SIGNIFICANCE OF PLAGIOCLASE-DOMINANT CORONAS...CORONAS ON GARNET, WENATCHEE BLOCK, NORTHERN CASCADES, WASHINGTON, U.S.A. HAROLD H. STOWELL§ AND ELLEN...ELLEN STEIN Department of Geological Sciences, The University of Alabama, Tuscaloosa, Alabama 35487-0338...reported from numerous localities throughout the North Cascades Crystalline Core, have been interpreted to...to tonalite and gabbro bodies, in the southern and central Cascades Core, contain fine-grained plagioclase-dominant |  | | Report (issue) | | Oregon Bulletin No. I I The Geology and Mineral Resources of Lane County, Oregon by WARREN D. SMITH...K. NIXON DIRECTOR SCHEMATIC REPRESENTATION OF THE RELATION OF GEOLOGY TO SOME OF LANE COUNTY'S ,ACTIVITIES..._.... 1 I - L-- Figure I-GEOLOGY AND LANE COUNTY ACTIVITIES - ---- 1 1 I I I : TOPOGRAPHY ... AND RA ILWAYS This bulletin is dedicated to the memory of Cfllen ...recognition of her helpfulness in the early years of the author's work in the University of Oregon. FOREWORD |  | | Report (issue) | | 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 |  | | Report (chapter) | | - T - t paths: examples from the Cordilleran Coast Plutonic Complex, USA H. H. S T O W E L L 1 & D. K...Sciences, University of Alabama, Tuscaloosa, Alabama, USA (e-mail." hstowell @wgs. geo. ua. edu) 2Department...Examples are presented for the Cretaceous to Tertiary magmatic arc of the North American Coast Plutonic...Metamorphism in the western Coast Plutonic Complex of southeastern Alaska and in the North Cascades of Washington...compositions and the intersection of garnet core composition isopleths provide estimates for the pressure 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 |  | | 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 |  | | Journal (article/letter/editorial) | | Mineralogist, Volume 90, pages 1619–1628, 2005 The effect of zoned garnet on metapelite pseudosection... TINKHAM2 1 Department of Geological Sciences, The University of Alabama, Tuscaloosa, Alabama 35487...pelitic rock, show negligible changes in the position of the peak metamorphic mineral assemblage field...sillimanite + quartz) compared to the position of this field calculated with the bulk-rock composition. Pelitic...model the effects of changes in effective composition on pseudosection topology. Differences in the location |  | | Journal (article/letter/editorial) | | Partial Fusion in the Northwestern Part of the Okanogan Range, Washington Abstract: The northwestern part...part of the Okanogan Range, Washington, (in the vicinity of 49°00'N., 120°00'W.) comprises regionally...indicate that the region was metamorphosed more or less uniformly under conditions equivalent to the sillim...granulite facies. The presence of andalusite plus sillimanite indicates metamorphism of the Abukuma type ...in contrast to the kyanite-sillimanite facies series in the Northern Cascade Range to the west. A single |  | | Report (issue) | | WASHINGTON: 1971 UNITED STATES DEPARTMENT OF THE INTERIOR ROGERS C. B. MORTON, Secretary GEOLOGICAL...SURVEY W. A. Radlinski, Acting Director For sale by the Superintendent of Documents, U.S. Government Printing...STUDIES Economic geology Geology and geochemistry of the Sinuk River barite deposit, Seward Peninsula, Alaska... . . . . Oil-shale beds in the Green River and Wasatch Formations in the Little Snake River area of northwestern...E. J. McKay. . Disseminated sulfide deposits in the eastern Elk Mountains, Colo., by Bruce Bryant . |  | | Report (issue) | | nomenclature ACKNOWLEDGEMENTS I am indebted to the following workers for sharing both samples and edifying...Charles W. Naeser I would not have been able to learn the fission track dating technique. Likewise, I am indebted...improved both form and content. I am grateful for the contributions of both time and thought by these and...other workers because they aided substantially in the completion of this dissertation. iii TABLE OF...SIGNIFICANCE OF PALEOGENE SEDIMENTS TO THE STRAIGHT CREEK FAULT. 91 The Straight Creek Fault ............ |  | | Journal (article/letter/editorial) | | University of Minnesota, Minneapolis, Minnesota 55455, USA, (corresponding author, e-mail: whitn008@tc.umn.edu)...Jose State University, San Jose, California 95192, USA 3 Department of Earth Sciences, University of Southern...California 90089, USA A B S TR A C T The >1800 km long Coast Mountains–North Cascades orogen of the Canadian...a continental magmatic arc. Metamorphic rocks in the orogen contain widespread evidence for burial of... Therefore, near-pluton rocks record the loading history of the orogen. Metapelitic rocks not associated |  | | Journal (article/letter/editorial) | | 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 |  | | Journal (article/letter/editorial) | | Petrology of the Composite Snoqualmie Batholith, Central Cascade Mountains, Washington ABSTRACT The Miocene...Miocene epizonal Snoqualmie batholith con- gioclase, the successive appearance of several mafic sists of at...most rocks, the sequence of mafic to silicic sequence. This magma suite is emplacement, and the chemical...trends of the incharacterized by the initial injection of olivine- trusive suite suggest the operation...followed by crystallization. Differentiation of the parent magma diorites, minor quartz diorites, abundant |  | | Journal (article/letter/editorial) | | 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 |  | | Journal (article/letter/editorial) | | of the Mesozoic Continental Margin First evidence for exhumation of UHP garnet peridotite in the North...Ministry of Energy and Mines, Victoria, B.C., Canada The Cordillera of western North America is a youthful...crustal flakes over a fixed deeper substrate of the continent. In contrast, exhumation of mantle lithosphere...deeper parts of the crust and mantle. These contrasting mechanisms bear on the growth of the Cordillera,...Here we show the first evidence for exhumation of UHP garnet peridotite and eclogite in the northern Cordillera |  | | Report (chapter) | | 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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