Fingerprints of Kamafugite-Like Magmas in Mesozoic Lamproites of the Aldan Shield: Evidence from Olivine and Olivine-Hosted Inclusions
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A Ground Magnetic Survey of Kimberlite Intrusives in Elliott County, Kentucky
Kentucky Geological Survey James C. Cobb, State Geologist and Director University of Kentucky, Lexington A Ground Magnetic Survey of Kimberlite Intrusives in Elliott County, Kentucky John D. Calandra Thesis Series 2 Series XII, 2000 Kentucky Geological Survey James C. Cobb, State Geologist and Director University of Kentucky, Lexington A Ground Magnetic Survey of Kimberlite Intrusives in Elliott County, Kentucky John D. Calandra On the cover: Photomicrographs of olivine phenoc- rysts: (top) a stressed first-generation olivine pheno- cryst and (bottom) a late-stage olivine phenocryst. Thesis Series 2 Series XII, 2000 i UNIVERSITY OF KENTUCKY Computer and Laboratory Services Section: Charles T. Wethington Jr., President Steven Cordiviola, Head Fitzgerald Bramwell, Vice President for Research and Richard E. Sergeant, Geologist IV Graduate Studies Joseph B. Dixon, Information Technology Manager I Jack Supplee, Director, Administrative Affairs, Research James M. McElhone, Information Systems Technical and Graduate Studies Support Specialist IV Henry E. Francis, Scientist II KENTUCKY GEOLOGICAL SURVEY ADVISORY Karen Cisler, Scientist I BOARD Jason S. Backus, Research Analyst Henry M. Morgan, Chair, Utica Steven R. Mock, Research Analyst Ron D. Gilkerson, Vice Chair, Lexington Tracy Sizemore, Research Analyst William W. Bowdy, Fort Thomas Steve Cawood, Frankfort GEOLOGICAL DIVISION Hugh B. Gabbard, Winchester Coal and Minerals Section: Kenneth Gibson, Madisonville Donald R. Chesnut Jr., Head Mark E. Gormley, Versailles Garland R. Dever Jr., Geologist V Rosanne Kruzich, Louisville Cortland F. Eble, Geologist V W.A. Mossbarger, Lexington Gerald A. Weisenfluh, Geologist V Jacqueline Swigart, Louisville David A. Williams, Geologist V, Henderson office John F. Tate, Bonnyman Stephen F. Greb, Geologist IV David A. -
UC Berkeley Archaeological X-Ray Fluorescence Reports
UC Berkeley Archaeological X-ray Fluorescence Reports Title X-Ray Fluorescence (XRF) Analysis Major Oxide and Trace Element Concentrations of Mainly Volcanic Rock Artifacts from a Number of Sites in Central Arizona Permalink https://escholarship.org/uc/item/7pt4r7vt Author Shackley, M. Steven Publication Date 2013-07-10 Supplemental Material https://escholarship.org/uc/item/7pt4r7vt#supplemental License https://creativecommons.org/licenses/by-nc/4.0/ 4.0 eScholarship.org Powered by the California Digital Library University of California www.escholarship.org/uc/item/7pt4r7vt GEOARCHAEOLOGICAL X-RAY FLUORESCENCE SPECTROMETRY LABORATORY 8100 WYOMING BLVD., SUITE M4-158 ALBUQUERQUE, NM 87113 USA X-RAY FLUORESCENCE (XRF) ANALYSIS MAJOR OXIDE AND TRACE ELEMENT CONCENTRATIONS OF MAINLY VOLCANIC ROCK ARTIFACTS FROM A NUMBER OF SITES IN CENTRAL ARIZONA Probable Cienega Large and San Pedro points from the collection by M. Steven Shackley Ph.D., Director Geoarchaeological XRF Laboratory Albuquerque, New Mexico Report Prepared for Dr. Anna Neuzil EcoPlan Associates, Inc. Tucson, Arizona 10 July 2013 www.escholarship.org/uc/item/7pt4r7vt INTRODUCTION The analysis here of artifacts mainly produced from high silica rhyolite is an attempt to provide a beginning data base for further artifact provenance studies in central Arizona. An intensive oxide and trace element analysis of the artifacts indicates a strong preference for high silica volcanics for the production of stone tools including dart points such as the ones figured on the cover page. None of the artifacts can be assigned to source at this time. The assemblage appears to be a Late Archaic/Cienega Phase assemblage rather typical of the region (Sliva 2...). -
Mantle Peridotite Xenoliths
Earth and Planetary Science Letters 260 (2007) 37–55 www.elsevier.com/locate/epsl Mantle peridotite xenoliths in andesite lava at El Peñon, central Mexican Volcanic Belt: Isotopic and trace element evidence for melting and metasomatism in the mantle wedge beneath an active arc ⁎ Samuel B. Mukasa a, , Dawnika L. Blatter b, Alexandre V. Andronikov a a Department of Geological Sciences, University of Michigan, Ann Arbor, MI 48109-1005, USA b Department of Earth and Planetary Science, University of California, Berkeley, CA 94720, USA Received 6 July 2006; received in revised form 3 May 2007; accepted 7 May 2007 Available online 13 May 2007 Editor: R.W. Carlson Abstract Peridotites in the mantle wedge and components added to them from the subducting slab are thought to be the source of most arc magmas. However, direct sampling of these materials, which provides a glimpse into the upper mantle beneath an active margin, is exceedingly rare. In the few arc localities where found, peridotite xenoliths are usually brought to the surface by basaltic magmas. Remarkably, the hornblende-bearing ultramafic xenoliths and clinopyroxene megaxenocrysts from El Peñon in the central Mexican Volcanic Belt were brought to the surface by a Quaternary high-Mg siliceous andesite, a rock type usually considered too evolved to be a direct product of mantle melting. The xenoliths and megaxenocrysts from El Peñon represent lithospheric mantle affected by significant subduction of oceanic lithosphere since as early as the Permian. Trace element and radiogenic isotope data we report here on these materials suggest a history of depletion by melt extraction, metasomatism involving a fluid phase, and finally, limited reaction between the ultramafic materials and the host andesite, probably during transport. -
Hydrated Peridotite – Basaltic Melt Interaction Part I: Planetary Felsic Crust Formation at Shallow Depth Anastassia Y
Hydrated Peridotite – Basaltic Melt Interaction Part I: Planetary Felsic Crust Formation at Shallow Depth Anastassia Y. BORISOVA1,2*, Nail R. ZAGRTDENOV1, Michael J. TOPLIS3, Wendy A. BOHRSON4, Anne NEDELEC1, Oleg G. SAFONOV2,5,6, Gleb S. POKROVSKI1, Georges CEULENEER1, Ilya N. BINDEMAN7, Oleg E. MELNIK8, Klaus Peter JOCHUM9, Brigitte STOLL9, Ulrike WEIS9, Andrew Y. BYCHKOV2, Andrey A. GURENKO10, Svyatoslav SHCHEKA11, Artem TEREHIN5, Vladimir M. POLUKEEV5, Dmitry A. VARLAMOV5, Kouassi E.A. CHARITEIRO1, Sophie GOUY1, Philippe de PARSEVAL1 1 Géosciences Environnement Toulouse, Université de Toulouse; UPS, CNRS, IRD, Toulouse, France 2 Geological Department, Lomonosov Moscow State University, Vorobievy Gory, 119899, Moscow, Russia 3 Institut de Recherche en Astrophysique et Planétologie (IRAP) UPS, CNRS, Toulouse, France 4 Central Washington University, Department of Geological Sciences, Ellensburg, WA 98926, USA 5 Korzhinskii Institute of Experimental Mineralogy, 142432, Chernogolovka, Moscow region, Russia 6 Department of Geology, University of Johannesburg PO Box 524, Auckland Park, 2006, Johannesburg, South Africa 7 Geological Sciences, University of Oregon, 1275 E 13th street, Eugene, OR, USA 8 Institute of Mechanics, Moscow State University, 1- Michurinskii prosp, 119192, Moscow, Russia 9 Climate Geochemistry Department, Max Planck Institute for Chemistry, P.O. Box 3060, D-55020 Mainz, Germany 10 Centre de Recherches Pétrographiques et Géochimiques, UMR 7358, Université de Lorraine, 54501 Vandœuvre-lès-Nancy, France 11 Bavarian Research -
Evolution of K-Rich Magmas Derived from a Net Veined
Evolution of K-rich magmas derived from a net veined lithospheric mantle in an ongoing extensional setting: Geochronology and geochemistry of Eocene and Miocene volcanic rocks from Eastern Pontides (Turkey) Cem Yücel, Mehmet Arslan, Irfan Temizel, Emel Abdioğlu, Gilles Ruffet To cite this version: Cem Yücel, Mehmet Arslan, Irfan Temizel, Emel Abdioğlu, Gilles Ruffet. Evolution of K-rich magmas derived from a net veined lithospheric mantle in an ongoing extensional setting: Geochronology and geochemistry of Eocene and Miocene volcanic rocks from Eastern Pontides (Turkey). Gondwana Research, Elsevier, 2017, 45, pp.65-86. 10.1016/j.gr.2016.12.016. insu-01462865 HAL Id: insu-01462865 https://hal-insu.archives-ouvertes.fr/insu-01462865 Submitted on 9 Feb 2017 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Accepted Manuscript Evolution of K-rich magmas derived from a net veined lithospheric mantle in an ongoing extensional setting: Geochronology and geochemistry of Eocene and Miocene volcanic rocks from Eastern Pontides (Turkey) Cem Yücel, Mehmet Arslan, -
Derivation of Intermediate to Silicic Magma from the Basalt Analyzed at the Vega 2 Landing Site, Venus
RESEARCH ARTICLE Derivation of intermediate to silicic magma from the basalt analyzed at the Vega 2 landing site, Venus J. Gregory Shellnutt* National Taiwan Normal University, Department of Earth Sciences, Taipei, Taiwan * [email protected] Abstract a1111111111 a1111111111 Geochemical modeling using the basalt composition analyzed at the Vega 2 landing site a1111111111 indicates that intermediate to silicic liquids can be generated by fractional crystallization and a1111111111 equilibrium partial melting. Fractional crystallization modeling using variable pressures (0.01 a1111111111 GPa to 0.5 GPa) and relative oxidation states (FMQ 0 and FMQ -1) of either a wet (H2O = 0.5 wt%) or dry (H2O = 0 wt%) parental magma can yield silicic (SiO2 > 60 wt%) composi- tions that are similar to terrestrial ferroan rhyolite. Hydrous (H2O = 0.5 wt%) partial melting can yield intermediate (trachyandesite to andesite) to silicic (trachydacite) compositions at OPEN ACCESS all pressures but requires relatively high temperatures ( 950ÊC) to generate the initial melt Citation: Shellnutt JG (2018) Derivation of at intermediate to low pressure whereas at high pressure (0.5 GPa) the first melts will be intermediate to silicic magma from the basalt generated at much lower temperatures (< 800ÊC). Anhydrous partial melt modeling yielded analyzed at the Vega 2 landing site, Venus. PLoS mafic (basaltic andesite) and alkaline compositions (trachybasalt) but the temperature ONE 13(3): e0194155. https://doi.org/10.1371/ journal.pone.0194155 required to produce the first liquid is very high ( 1130ÊC). Consequently, anhydrous partial melting is an unlikely process to generate derivative liquids. The modeling results indicate Editor: Axel K Schmitt, Heidelberg University, GERMANY that, under certain conditions, the Vega 2 composition can generate silicic liquids that pro- duce granitic and rhyolitic rocks. -
USGS Professional Paper 1692
USG S Eruptive History and Chemical Evolution of the Precaldera and Postcaldera Basalt-Dacite Sequences, Long Valley, California: Implications for Magma Sources, Current Seismic Unrest, and Future Volcanism Professional Paper 1692 U.S. Department of the Interior U.S. Geological Survey This page intentionally left blank Eruptive History and Chemical Evolution of the Precaldera and Postcaldera Basalt-Dacite Sequences, Long Valley, California: Implications for Magma Sources, Current Seismic Unrest, and Future Volcanism By Roy A. Bailey Professional Paper 1692 U.S. Department of the Interior U.S. Geological Survey ii U.S. Department of the Interior Gale A. Norton, Secretary U.S. Geological Survey Charles G. Groat, Director U.S. Geological Survey, Reston, Virginia: 2004 For sale by U.S. Geological Survey Information Services Box 25286, Denver Federal Center Denver, CO 80225 This report and any updates to it are available online at: http://pubs.usgs.gov//pp/p1692/ Additional USGS publications can be found at: http://geology.usgs.gov/products.html For more information about the USGS and its products: Telephone: 1–888–ASK–USGS (1–888–275–8747) World Wide Web: http://www.usgs.gov/ Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement of the U.S. Government. Although this report is in the public domain, it contains copyrighted materials that are noted in the text. Permission to reproduce those items must be secured from the individual copyright owners. Cataloging-in-publication data are on file with the Library of Congress (URL http://www.loc.gov/). -
Comparison of Hawaiian Basalts By: Alex Van Ningen and Adam Sagaser Geology 422: Petrology 5/2/2014 Introduction
COMPARISON OF HAWAIIAN BASALTS BY: ALEX VAN NINGEN AND ADAM SAGASER GEOLOGY 422: PETROLOGY 5/2/2014 INTRODUCTION • The Hawaiian Islands were formed as a result of the Pacific Plate moving Northwest over a hotspot in the Earth’s mantle. • The islands in the southeast are the youngest and most volcanically active. • Hawai’i (the Big Island) is composed of a group of five volcanoes, with Mauna Loa being the world’s largest volcano and Kilauea being the world’s most active volcano (Saini-eidukat and Schwert, 2013). Image Source: U.S.G.S. Kauai Niihau Oahu Molokai Lanai Maui Kahoolawe Hawai’i Photo coutesy of: NASA HAWAI’I (THE BIG ISLAND) • Two samples were obtained from the big island. Sample 130309 was obtained from Kohala and sample 130315 was obtained from Hualalai. • Our initial hypothesis was that the sample from Kohala is a benmorite, and the sample from Hualalai is a basalt. Image source: U.S.G.S. RESEARCH & METHODS Sample: 130315 • To begin, we took our samples and put them in a jaw crusher. • For sample number 130315, there was some olivine and calcite that may have formed as a xenolith. An attempt was made to remove as much of the secondary minerals as possible. Sample: 130309 • Both samples were taken to Dr. Lewis’s lab, where a ring pulverizer was used to grind the fragments into a powder. • Thin sections were also prepared for conceptual purposes. RESEARCH & METHODS • Both sets of powder underwent loss on ignition (LOI) in a muffle furnace. This was initially done at 105⁰C. -
The Ronda Peridotite: Garnet-, Spinel-, and Plagioclase-Lherzolite Facies and the P—T Trajectories of a High-Temperature Mantle Intrusion
The Ronda Peridotite: Garnet-, Spinel-, and Plagioclase-Lherzolite Facies and the P—T Trajectories of a High-Temperature Mantle Intrusion by MASAAKI OBATA* Institutfiir Kristallographie und Petrographie, Eidgenossische Technische Hochschule, Zurich, CH-8092, Zurich, Switzerland (Received 18 October 1978; in revised form 28 June 1979) ABSTRACT The Ronda peridotite is a high-temperature, alpine-type peridotite emplaced in the internal Zone of the Betic Cordilleras, southern Spain. Using the mineral assemblages of the peridotite and mafic layers, the peridotite mass has been subdivided into 4 zones of mineral facies: (l)garnet-lherzolite facies, (2) ariegite subfacies of spinel-lherzolite facies, (3) seiland subfacies of spinel-lherzolite facies, and (4) plagioclase-lherzolite facies. It is proposed that this mineralogical zonation developed through a syntectic recrystallization of a hot (1100 to 1200 °C), solid mantle peridotite during its ascent into the Earth's crust. Coexisting minerals from 12 peridotites covering all the mineral facies above were analysed with an electron microprobe. Core compositions of pyroxene porphyroclasts are constant in all mineral facies and indicate that the peridotite was initially equilibrated at temperatures of 1100 to 1200 °C and pressures of 20 to 25 kb. In contrast, the compositions of pyroxene neoblasts and spinel grains (which appear to have grown during later recrystallization) are well correlated with mineral facies. They indicate that the recrystallization temperature throughout the mass is more or less constant, 800 to 900 °C, but that the pressure ranges from 5-7 kb in the plagioclase-lherzolite facies to 12-15 kb in the garnet-lherzolite facies. Therefore, variation in pressure appears to be primarily responsible for the four mineral facies types. -
Oregon Geologic Digital Compilation Rules for Lithology Merge Information Entry
State of Oregon Department of Geology and Mineral Industries Vicki S. McConnell, State Geologist OREGON GEOLOGIC DIGITAL COMPILATION RULES FOR LITHOLOGY MERGE INFORMATION ENTRY G E O L O G Y F A N O D T N M I E N M E T R R A A L P I E N D D U N S O T G R E I R E S O 1937 2006 Revisions: Feburary 2, 2005 January 1, 2006 NOTICE The Oregon Department of Geology and Mineral Industries is publishing this paper because the infor- mation furthers the mission of the Department. To facilitate timely distribution of the information, this report is published as received from the authors and has not been edited to our usual standards. Oregon Department of Geology and Mineral Industries Oregon Geologic Digital Compilation Published in conformance with ORS 516.030 For copies of this publication or other information about Oregon’s geology and natural resources, contact: Nature of the Northwest Information Center 800 NE Oregon Street #5 Portland, Oregon 97232 (971) 673-1555 http://www.naturenw.org Oregon Department of Geology and Mineral Industries - Oregon Geologic Digital Compilation i RULES FOR LITHOLOGY MERGE INFORMATION ENTRY The lithology merge unit contains 5 parts, separated by periods: Major characteristic.Lithology.Layering.Crystals/Grains.Engineering Lithology Merge Unit label (Lith_Mrg_U field in GIS polygon file): major_characteristic.LITHOLOGY.Layering.Crystals/Grains.Engineering major characteristic - lower case, places the unit into a general category .LITHOLOGY - in upper case, generally the compositional/common chemical lithologic name(s) -
Lunar Crater Volcanic Field (Reveille and Pancake Ranges, Basin and Range Province, Nevada, USA)
Research Paper GEOSPHERE Lunar Crater volcanic field (Reveille and Pancake Ranges, Basin and Range Province, Nevada, USA) 1 2,3 4 5 4 5 1 GEOSPHERE; v. 13, no. 2 Greg A. Valentine , Joaquín A. Cortés , Elisabeth Widom , Eugene I. Smith , Christine Rasoazanamparany , Racheal Johnsen , Jason P. Briner , Andrew G. Harp1, and Brent Turrin6 doi:10.1130/GES01428.1 1Department of Geology, 126 Cooke Hall, University at Buffalo, Buffalo, New York 14260, USA 2School of Geosciences, The Grant Institute, The Kings Buildings, James Hutton Road, University of Edinburgh, Edinburgh, EH 3FE, UK 3School of Civil Engineering and Geosciences, Newcastle University, Newcastle, NE1 7RU, UK 31 figures; 3 tables; 3 supplemental files 4Department of Geology and Environmental Earth Science, Shideler Hall, Miami University, Oxford, Ohio 45056, USA 5Department of Geoscience, 4505 S. Maryland Parkway, University of Nevada Las Vegas, Las Vegas, Nevada 89154, USA CORRESPONDENCE: gav4@ buffalo .edu 6Department of Earth and Planetary Sciences, 610 Taylor Road, Rutgers University, Piscataway, New Jersey 08854-8066, USA CITATION: Valentine, G.A., Cortés, J.A., Widom, ABSTRACT some of the erupted magmas. The LCVF exhibits clustering in the form of E., Smith, E.I., Rasoazanamparany, C., Johnsen, R., Briner, J.P., Harp, A.G., and Turrin, B., 2017, overlapping and colocated monogenetic volcanoes that were separated by Lunar Crater volcanic field (Reveille and Pancake The Lunar Crater volcanic field (LCVF) in central Nevada (USA) is domi variable amounts of time to as much as several hundred thousand years, but Ranges, Basin and Range Province, Nevada, USA): nated by monogenetic mafic volcanoes spanning the late Miocene to Pleisto without sustained crustal reservoirs between the episodes. -
Cr3+ in Phyllosilicates
Mineral Spectroscopy: A Tribute to Roger G. Bums © The Geochemical Society, Special Publication No.5, ]996 Editors: M. D. Dyar, C. McCammon and M. W. Schaefer 3 Cr + in phyllosilicates: Influence of the nature of coordinating ligands and their next cationic neighbors on the crystal field parameters I 2 2 A. N. PLATONOV , K. LANGER , M. ANDRUT .3, G. CALAS4 'Institute of Geochemistry, Mineralogy and Ore Formation, Academy of Science of Ukraine, 252680 Kiev, Ukraine 2Institute of Mineralogy and Crystallography, Technical University, D-10623 Berlin, Germany 3GeoForschungszentrum Potsdam, D-14473 Potsdam, Deutschland "Laboratoire de Mineralogie et de Cristallographie, Universite de Paris 6 et 7, F-7525l Paris, France 3 Abstract- The electronic absorption spectra of Cr + -bearing clinochlore (I, kammererite), amesite (II), muscovite (III, fuchsite), dickite (IV), and montmorillonite (V, volkonskite) analysed by electron microprobe were obtained on single crystals. Microscope-spectrometric techniques and polarized radiation in the spectral range 10000-38000 cm " (I, II, III) or (on fine grained material) diffuse reflectance spectrometry in the spectral range 8000-50000 cm-I (IV, V) were used. The ligand field theoretical evaluation of the spectra showed the following: (i) The fl.o = 10Dq = f(1/R5) relation, wherein fl.o is the octahedral crystal field parameter and R the mean cation ligand distance, is valid within each series of layer silicates containing octahedral Cr3+ either in a trioctahedral layer (I, II and phlogopite) or in a dioctahedral layer (III, IV, V). Between the two functions, fl.o.trioct = f(1lR~ioct) and fl.o.di=t = f(1/R~ioct), there exists an energy difference of about 2200 em -I.