 | | Journal (article/letter/editorial) | | middle of the Mexican Volcanic Belt (MVB), a vast Miocene-Recent, E-W–oriented volcanic province spanning...stable between 220 and 300°C and transforms to muscovite (sericite) above 300°C (Simmons and Browne, 1998)...active geothermal field located in the Mexican Volcanic Belt (MVB), 200 km northwest of Mexico City. With...geothermal field is distinguished by extensive Neogene volcanic rocks, dominated by andesitic and basaltic lavas...rocks of Late Mesozoic to Oligocene age. The pre-volcanic basement consists of gently folded shales, sandstones |  | | Journal (issue) | | OREGON GEOLOGY published by the Oregon Department of Geology and Mineral Industries VOLUME 48, NUMBER... .. ...---- 1<:,1 I". -.:1 .. • ,. • • OREGON GEOLOGY OIL AND GAS NEWS VOLUME 48, NUMBER 12...plugged and abandoned. The final well, Columbia County 31-8, located in sec. 8, T. 6 N., R. 5 W., was...redrills. Tenneco Oil Company spudded Columbia County 24-28, located in sec. 28, T. 6 N., R. 5 W., on...0164-3304) DECEMBER 1986 Published monthly by the Oregon Department of Geology and Minerai Industries (Volumes |  | | Journal (article/letter/editorial) | | predominantly andesitic volcanics forming and filling caldera structures (Lipman, 1975). The La Jara is predominantly...m o n z o n i t e and and•site of the Platoro caldera. Weak correlations with Th hold (in all b u t...Formation is exposed in a quarry on the H o o d River, Oregon. Investigation of this contact showed that chemical...rhyodacite dike and basalt, quarry on Hood River, Oregon. The migration of radio- and trace elements into...more FeO than chlorite in the unheated rock. Muscovite in the heated rock showed faint color changes |  | | Report (issue) | | Reconnaissance geology of the Mount Edgecumbe volcanic field, Kruzof Island, southeastern Alaska, by...Concentric structure in elongate pillows, Amador County, Calif., by W. A. Duffield._______________________________...lapilli deposits from Central Pumice Cone, Newberry Caldera, Oreg., by M. W. Higgins______ Similarity...__________ Ultramafic xenoliths in basalt, Nye County, Nev., by N. J. Trask___-____-___________----_...Pink copper-bearing prehnite from Isle Royale National Park, Mich., by N. K. Huber_____________________________ |  | | Report (issue) | | Guides to some Volcanic Terranes in Washington, l~ho, Oregon, and Northern California David A. Johnston...tri p bet ween Lewiston , Idaho, and Kimberly , Oregon, emphasizing the Columbia River Basalt Group by...trip bet ween Lewiston , Idaho , and Kimberly , Oregon by D. A. Swanson , U. S . Geological Sur vey, Me...geologic field trip bet ween Kimberly and Bend, Oregon with emphasis on the John Day Formation by Paul...l. 2. 3. 4. 29 Index map of north - central Oregon with extent of John Day Formation ------------ |  | | Report (issue) | | SIMS Potassium-Argon Ages from the Mount Taylor Volcanic Field, New Mexico By PETER W. LIPMAN and HARALD...Structurally Complex Rhyolite Center in Southeastern Oregon By RAY E. WELLS Palladium, Platinum, and Rhodium...(B) Potassium-Argon Ages from the Mount Taylor Volcanic Field, New Mexico, by Peter W. Lipman and Harald...Structurally Complex Rhyolite Center in Southeastern Oregon, by Ray E. Wells (F) Palladium, Platinum, and Rhodium...restricted to, the Vermilion the greenschist-facies volcanic and sedimentary rocks of the Vermilion district |  | | Report (volume) | | Road) near town of Abel, Cleburne County. Absaroka Supergroup/Volcanic Supergroup U ABRK03 1. Eocene 2...10. Type area: Absaroka volcanic field, Yellowstone National Park, Park County, Wyo. Academy Church Shale...W1/2NW1/4NE1/4SE1/4 sec. 1, T. 3 s., R. 2 E., Carter County. Adams Formation ADMS01 1. Holocene 2. Alaska (SE)...Quadrangle, lat 45° N., long 70°50'-55' W., Oxford County. Adamstown Member (Frederick Limestone) U ADMS06...section W of Lime Kiln in Frederick Valley, Frederick County. Named for town of Adamstown. Adobe Town Member |  | | Report (volume) | | Survey Bull. 1200; issued, Paris, 1967, by Centre National de Ia Recherche Scientifique as Volume 7 Amerique...74, Ph miles east of Dutchtown, Cape Girardeau County, Mo. Type section cut by northtrending fault with...stream in NEIA sec. 33, T. 16 N., R. 14 E, Wayne County. Named after village of Abington, about 3 miles...locality Achiote Conglomerate consists of massive red volcanic conglomerate with well-rounded clasts as large...Named for Adam Peak in Osgood Mountains, Humboldt County. Occupies belt about 21f2 miles long on western |  | | Journal (article/letter/editorial) | | University of New Mexico, Albuquerque, NM, 87131-0001, USA (agee@unm.edu, draper@unm.edu) High pressure melting...Urbana-Champaign, 1301 W. Green St., Urbana, Illinois, 61801, USA (217) 333-6379, (217) 333-1018 (lakshtan@uiuc.edu)...located about 49 km to the south-west of the Mianning County, Sichuan Province, is a carbonatite vein-type deposit...Marine Studies, University Delaware, Newark, DE, USA (tchurch@udel.edu) 2 CEREGE UMR CNRS 6635 –Universite...~monthly resolution. Studies at Howland Forest, Maine USA (a transitional boreal forest) focused upon processes |  | | Book | | information is available for the shelf area off Oregon and Washington. Most of the discussion in this...from ‘Triassic to PlioPleistocene in age. Similar volcanic and meta- morphic rocks are also found in the...different fault systems. Continental Margin off Oregon and Washington Information regarding the nature...greater than 10 miles in width at the California-Oregon state line. From here it widens somewhat and attains...Sunderland Wicomico Coharie Okefenokee Wicomico Newberry 170 100 Talbot Talbot 25 Pamlico Pamlico |  | | Book (volume) | | HALKA CHRONIC PAGES OF STONE GEOLOGY OF WESTERN NATIONAL PARKS & MONUMENTS 2: SERRA NEVADA, CASCADES,...Half Dome, Yosemite National Park. Inset: Jointed volcanic rock, Mount Rainier National Park. Manufactured...and Pacific Coast. 1. Geology—West (U.S.) 2. National parks and reserves—West (U.S.) 3. Natural monuments—West...Part 2. National Parks and Monuments Cabrillo National Monument Channel Islands National Park Crater...Crater Lake National Park Devils Postpile National Monument John Day Fossil Beds National Monument Lassen |  | | Book | | 75 CENOZOIC VOLCANISM IN THE NEWBERRY MOUNTAINS, SAN BERNARDINO COUNTY, CALIFORNIA . . . . . . . . .... • • • • • • • • • ♦ • ■ SAN DIEGO COUNTY, CALIFORNIA . . . . . . . . . . . . . . . . . ...transform system itself, local sedimentary basins and volcanic fields re l ated 3 to Neogene passage of the...oceanic hotspot tracks composed of seamounts and volcanic islands. Uncertainties about the timing of some...specifically from the potassium gradients in arc volcanic rocks (Keith, 1978). During latest Cretaceous |  | | Report (volume) | | this alteration resulted in severely weakened volcanic edifices that were susceptible to failure and...and in the Osceola Mudflow, Washington altered volcanic rocks, one covering about 20 km2 on the north...(1986) as outflow facies rhyolite tuff related to a caldera located about 10 km to the southeast in the Clearwater...rocks have been interpreted as being related to a caldera (McCulla, 1986). Turn vehicles around and drive...original composition and primary textures of many volcanic rocks are not discernable. In the Superior and |  | | Report (issue) | | complex and difficult, and more critical to the National Welfare. W^ V. E. McKELVEY, Director III CONTENTS...___72 California ___________________________72 Oregon ____________________________________76 Regional...___123 Nevada _____________________________124 Oregon _____________________________124 Washington __...coordination, acquisition, and storage _ _______124 National water data exchange ____________126 Water-data...___________________127 Water use ________________________127 National water-quality programs _ _ _ _ _ __ _132 Marine |  | | Report (issue) | | 1966 1967 1968 1969 1970 Numerous Federal, State, county, and local agencies and other organizations and...••.••••••..•.•••... Yellowstone and Grand Teton National Parks ••••.• Geological and geophysical studies...•• Washington .......................•........ Oregon .................................. . Idaho ......silicate, and of gowerite ....................• Volcanic rocks and processes .................... . Plutonic...investigations .......•.......•..•..•........ Volcanic investigations .......•...........•......•. Cosmic |  | | Report (issue) | | ________________ Lithium investigations in sedimentary and volcanic rocks ______________________ Phosphate investigation...—— —— _______ California _______________-_—————— Oregon ___________——-——--———-_-Washington _——————————————————...______________________ Nevada _____________________ Oregon ________________———___ Washington _________________...Coordination ___ Water-data storage system _____—__ National Water Data Exchange _____ Urban water program...program ________—__ Water use _____________________ National water quality programs ______ The Regional Aquifer-System |  | | Book | | that mineral. hornblende granite feldspar muscovite biotite Above: An example of granite with some...Earth’s surface are 19 Igneous rocks called volcanic or extrusive igneous rocks. In some cases, however...wind, water and ice. Extrusive igneous rocks Volcanic rocks are generally found as lava flows of different...conduit, to produce a volcano. The products of volcanic activity include gases, liquids, and solids. Gases...igneous rocks. If you have watched a film of a volcanic eruption or been fortunate enough to observe one |  | | Report (issue) | | 1965. 1966. 1967. 1968. Numerous Federal, State, county, and local agencies and other organizations and...______ North Carolina-__--___--__--__-_-___-._ Oregon._ ______________________________ South Dakota_____________...Montana disturbed belt.________________ Yellowstone National Park and vicinity. __ Snake River Plain______________________...-____ Washington-- _ ____--__-_-_-_______-_--_ Oregon ____-_______----_--_-__-_--__-_Nevada __ _____..._______________________________ Volcanic rocks and processes. _ _______________ Recent volcanic activity. ________________ |  | | Journal (issue) | | Patterns in Opal Agate from Morocco Field Report on Oregon Sunstone Fall 2013 VOLUME 49, No. 3 EDITORIAL...pg. 162 FIELD REPORT 162 Three Occurrences of Oregon Sunstone Duncan Pay, Robert Weldon, Shane McClure...Chronicles a visit to the high desert of eastern Oregon to examine commercial sources of this natural copper-bearing...Mouawad Campus 5345 Armada Drive Carlsbad, CA 92008 USA © 2013 Gemological Institute of America All rights...from a practical indication of heat treatment to Oregon sunstone to our lead article on the Museum of London’s |  | | Report (issue) | | ---------------------------New Mexico -----------------------Oregon ---------------------------Utah --------------...-----------------------California -----------------------------Oregon -------------------------------Washington ----...---------~evada -------------------------------Oregon -------------------------------Washington ____...------------------129 Mineral studies --------------------130 Volcanic rocks and processes ------------131 Hawaiian volcanoes...-----------------132 Volcanic rocks in the Western United 132: States ----------------------132 Volcanic rocks in |  | | Report (volume) | | Taipei, Taiwan, China. Science reports of the National Acta Geophys. Polonica- Acta Geophysica Polonica...Quaternaire. Pub lie avec le concours du Centre National de la Recherche Scientifique. Paris, France. Assoc...Geotechnical Journal. Revue Canadienne de Geotechnique. National Research Council of Canada. Ottawa, Ontario, Canada...Canadian Jour. Botany- Canadian Journal of Botany. National Research Council of Canada. Ottawa, Ontario, Canada...Jour. Chemistry- Canadian Journal of Chemistry. National Research Council of Canada. Ottawa, Ontario, Canada |  | | Report (issue) | | A293-A298 of this chapter. Numerous Federal, State, county, 1and local agencies and other organizations and...-----Structural and geophysical studies_ - -----Grand Teton National Park and vicinity--Igneous and metamorp hie rocks_...___ _ Washington ___________________________ _ Oregon _______________________________ _ California _...and petrology-Con. Volcanic rocks and processes _________ -------_ Al19 Volcanic activity ______________________...______________________ _ 119 Chemistry of volcanic rocks and gases ____ _ 121 Xenoliths in basalt _____________________ |  | | Report (volume) | | Taipei, Taiwan, China. Science reports of the National Acta Geophys. Polonica- Acta Geophysica Polonica...Canada. Canada Natl. Mus. Anthropology Papers- National Museum of Canada Anthropology Papers. Ottawa,...Canada. Canadian Alpine Jour. Alberta, Canada. National Museum of Canada Bulletin. Canadian Alpine Journal...Geotechnical Journal. Revue Canadienne de Geotechnique. National Research Council of Canada. Ottawa, Ontario, Canada...Canadian Jour. Botany- Canadian Journal of Botany. National Research Council of Canada. Ottawa, Ontario, Canada |  | | Report (issue) | | easily mistaken for metasedimentary, metavolcanic, volcanic, or finegrained intrusive rocks. In many cases...structure or flow texture common to silicic and felsic volcanic rocks. Lapworth's choice of the term reflects...plagioclase grain showing twinning and fractures Muscovite Bent twin lamellae in Unrecrystallized plagioclase...Thin "wispy" train of muscovite 1 mm Rounded quartz grain "Train" of muscovite at edge of quartz grain...quartz grain Recrystallized mortar (note strain) Muscovite Strained quartz grain 1 mm CLASSIFICATION |  | | Report (volume) | | Quaternaire. Publie avec le concours du Centre National de Ia Recherche Scientifique. Paris, France. Assoc...of the Association of Pacific Coast Geographers. Oregon State University Press. Corvallis, Oreg. Auk- Auk...Canada. Canada Natl. Mus. Nat. History Paper- National Museum of Canada Natural History Papers. Ottawa...Associate Committee on Soil and Snow Mechanics, National Research Council, and the Geotechnical Engineering...Canadian Jour. Botany- Canadian Journal of Botany. National Research Council of Canada. Ottawa, Ontario, Canada |
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