DOCSLIB.ORG

Diorite (Monzodiorite) (ID:049) GEOLOGICAL CLASSIFICATION (Genetic Classification) Introductory This Sample Is an Igneous Rock

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Diorite (Monzodiorite) (ID:049) GEOLOGICAL CLASSIFICATION (Genetic Classification) Introductory This Sample Is an Igneous Rock Diorite (monzodiorite) (ID:049) GEOLOGICAL CLASSIFICATION (Genetic classification) Introductory This sample is an igneous rock. It is composed of quartz, feldspar and plagioclase and the definition (visu) crystal size ranges from 2 to 4mm. Petrologist's This sample is a diorite (monzodiorite). A coarse-grained igneous rock consisting of definition quartz, feldspar and plagioclase with accessory mica, pyroxene, amphibole and olivine. Crystal size lies between 2 and 4 mm and the most important kind of porosity is intercrysalline fissures. The presence of the orthoclase feldspar distinguishes this rock from a diorite and is termed as a monzodiorite. Commercial In the Natural Stone Industry, this rock is known as Verde Labrador definition (if any) GEOMECHANICAL CLASSIFICATION (Behavioural classification, Goodman, 1989) II. Clastic texture A. Stably cemented. DESCRIPTION OF LOCAL SAMPLE Geological Not available description of local sample Other information Not available about the outcrop Weathering grade of Not available sampling outcrop (ISRM, 1981) Location Not available ENGINEERING CLASSIFICATION OF INTACT ROCKS (General classification) ISRM classification R0 R1 R2 R3 R4 R5 R6 by strength. USC Extremely Very Weak Medium Strong Very Extremely (MPa) (ISRM, 1981) weak weak (5-25) strong (50-100) strong strong (0.25-1) (1-5) (25-50) (100- (>250) 250) Deere and Miller classification by strength and deformation properties (Deere and Miller, 1966) Mechanical General values Particular (local) properties (unaltered) values (if any) Young’s Modulus (E) Tangent modulus 30-70 (Ramírez 39.80 (Brotons et al, at 50% ultimate strength (GPa) Oyanguren & Alejano 2016) 2004) Poisson’s coefficient (ν) 0,12-0,25 (Ramírez Oyanguren & Alejano 2004) Uniaxial compression strength (MPa) 100-250 (Hoek 2007, 59.86 (Brotons et al, p) 2016) 120-280 (Oyanguren & Alejano 2004) P wave velocity (m/s) 5500-6000 4656 (Brotons et al, (Fourmaintraux, 1976 2016) in Goodman (1989) mi (Hoek and Brown criterion, 1980) 25 ± 5(Hoek, 2006) Basic friction angle (Φb) 50-55 (González de Vallejo et al., 2002) Physical properties Dry unit weight (kN/m3) 27-29 (Schön 2015 25.839 (Brotons et al, (unaltered) p116) 2016) 25-27.5 (Ramirez Oyanguren & Alejano 2004) Porosity (%) 0,1-2 (Oyanguren & 0,916 (Brotons et al, Alejano 2004) 2016) Engineering uses and It is an excellent building material. others Refences: • Brotons, V., Tomás, R., Ivorra, S. Grediaga, A. Martínez-Martínez, J., Benavente, D., Gómez-Heras, M. (2016): Improved correlation between the static and dynamic elastic modulus of different types of rocks. Mater Struct (2016) 49: 3021. https://doi.org/10.1617/s11527-015-0702-7 • Ramírez Oyanguren, P., & Alejano Monge, L. R. (2004). Mecánica de rocas: Fundamentos e ingeniería de taludes (No. 727). Red DESIR. • Schön JH (2015) Physical Properties of Rocks: Fundamentals and Principles of Petrophysics (2nd edition). Dev Pet Sci. doi: 10.1103/PhysRevE.67.016120 • Fourmaintraux, D., 1976. Characterization of rocks; laboratory tests, ChapterIV in La Mécanique des roches appliquée aux ouvrages du génie civil by Marc panet et al. École Nationale des Pnts et Chausées, Paris • Hoek, 2006. Practical rock engineering. Available in https://www.rocscience.com/learning/hoeks-corner • González de Vallejo, L.I., Ferrer, M., Ortuño, L., Oteo, C., 2002. Ingeniería Geológica. Prentice Hall. Madrid • Goodman, R.E., 1989. Introduction to Rock Mechanics, 2nd edition. John Wiley and Sons. New York • ISRM (1981) Rock characterization. In: Brown ET (ed) Testing and monitoring— ISRM suggested methods. Pergamon press, Oxford, p 211 Last update: 13/02/2019 .
Load more

Recommended publications
  • Petrographic Study of a Quartz Diorite Stock Near Superior, Pinal County, Arizona
    Petrographic study of a quartz diorite stock near Superior, Pinal County, Arizona Item Type text; Thesis-Reproduction (electronic); maps Authors Puckett, James Carl, 1940- Publisher The University of Arizona. Rights Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author. Download date 23/09/2021 23:40:37 Link to Item http://hdl.handle.net/10150/554062 PETROGRAPHIC STUDY OF A QUARTZ DIORITE STOCK NEAR SUPERIOR, PINAL COUNTY, ARIZONA by James Carl Puckett, Jr. A Thesis Submitted to the Faculty of the DEPARTMENT OF GEOLOGY In Partial Fulfillment of the Requirements For the Degree of MASTER OF SCIENCE In the Graduate College THE UNIVERSITY OF ARIZONA 1 9 7 0 STATEMENT BY AUTHOR This thesis has been submitted in partial fulfillment of re­ quirements for an advanced degree at The University of Arizona and is deposited in the University Library to be made available to borrowers under rules of the Library. Brief quotations from this thesis are allowable without special permission, provided that accurate acknowledgment of source is made. Requests for permission for extended quotation from or reproduction of this manuscript in whole or in part may be granted by the head of the major department or the Dean of the Graduate College when in his judg­ ment the proposed use of the material is in the interests of scholar­ ship. In all other instances, however, permission must be obtained from the author.
    [Show full text]
  • Lunar Silica-Bearing Diorite: a Lithology from the Moon with Implications for Igneous Differentiation
    50th Lunar and Planetary Science Conference 2019 (LPI Contrib. No. 2132) 2008.pdf LUNAR SILICA-BEARING DIORITE: A LITHOLOGY FROM THE MOON WITH IMPLICATIONS FOR IGNEOUS DIFFERENTIATION. T. J. Fagan1* and S. Ohkawa1, 1Dept. Earth Sci., Waseda Univ., 1-6-1 Nishi- waseda, Shinjuku, Tokyo, 169-8050, Japan (*[email protected]). Introduction: Silica-rich igneous (“granitic”) ratios and relatively high F concentrations indicate that rocks are rare on the Moon, but have been detected by the analyzed grains are apatite (not merrillite). remote sensing on the lunar surface [e.g., 1], and in Results: The silica-bearing diorite (Sil-Di) is dom- Apollo samples and lunar meteorites [e.g., 2-5]. To date, inated by pyroxene (55 mode%), plagioclase feldspar lunar granitic samples have been characterized by high (36%), silica (4.4%), ilmenite (3.9%) and K-feldspar concentrations of incompatible elements and/or mafic (0.3%) (Fig. 2). Apatite and troilite also occur. The Sil- silicates with high Fe# (atomic Fe/[Fe+Mg]x100) [2-5], Di exhibits interlocking, igneous textures with elongate both features consistent with origin from late-stage re- plagioclase feldspar (Fig. 2). Plagioclase feldspar has sidual liquids or very low degree partial melting. Fur- nearly constant composition of An88Ab11, but pyroxene thermore, silica-rich rocks detected by remote sensing has a wide range of zoning (Fig. 3). often combine the Christiansen feature in infra-red spec- The modal composition of the Sil-Di is plagioclase- tra with high incompatible element concentrations (e.g., rich compared to many silica-bearing igneous rocks Th detected by gamma-ray spectroscopy [1]), again re- from the Moon (Fig.
    [Show full text]
  • Rocks and Geology: General Information
    Rocks and Geology: General Information Rocks are the foundation of the earth. Rock provides the firmament beneath our oceans and seas and it covers 28% of the earth's surface that we all call home. When we travel any distance in any given direction, it is impossible not to see the tremendous variety in color, texture, and shape of the rocks around us. Rocks are composed of one or more minerals. Limestone, for example, is composed primarily of the mineral calcite. Granite can be made up of the minerals quartz, orthoclase and plagioclase feldspars, hornblende, and biotite mica. Rocks are classified by their mineral composition as well as the environment in which they were formed. There are three major classifications of rocks: igneous, sedimentary and metamorphic. A question: Which kind of rock came first? Think about it....... The following sections describe the conditions and processes that create the landscape we admire and live on here on "terra firma." IGNEOUS ROCKS The millions of tons of molten rock that poured out of the volcano Paracutin in Mexico, and from the eruption of Mount St. Helens in Washington State illustrate one of the methods of igneous rock formation. Igneous (from fire) rocks are formed when bodies of hot liquid rock called magma located beneath the earth's crust, find their way upward through the crust by way of fissures or faults. If the magma reaches the earth's surface, it forms extrusive igneous rocks or volcanic rocks. If the magma cools before it reaches the surface, it forms bodies of rock called intrusive igneous rocks or plutonic rocks.
    [Show full text]
  • A) Diorite B) Gabbro C) Andesite D) Pumice 1. the Photograph Below
    1. The photograph below shows an igneous rock with 4. The photograph below shows the intergrown crystals mineral crystals ranging in size from 2 to 6 of a pegmatite rock. millimeters. The rock is composed of 58% plagioclase feldspar, 26% amphibole, and 16% biotite. What is the name of this rock? A) diorite B) gabbro Which characteristic provides the best evidence that this pegmatite solidified deep underground? C) andesite D) pumice 2. Which igneous rock is dark colored, cooled rapidly on A) low density Earth's surface, and is composed mainly of B) light color plagioclase feldspar, olivine, and pyroxene? C) felsic composition D) very coarse texture A) obsidian B) rhyolite C) gabbro D) scoria 3. Which intrusive igneous rock could be composed of approximately 60% pyroxene, 25% plagioclase feldspar, 10% olivine, and 5% amphibole? A) granite B) rhyolite C) gabbro D) basalt 5. The graph below shows the relationship between the cooling time of magma and the size of the crystals produced. Which graph correctly shows the relative positions of the igneous rocks granite, rhyolite, and pumice? A) B) C) D) 6. The diagrams below show the crystals of four different rocks viewed through the same hand lens. Which crystals most likely formed from molten material that cooled and solidified most rapidly? A) B) C) D) 7. "Which granite sample most likely formed from magma that cooled and solidified at the slowest rate?" A) " " B) " " C) " " D) " " Base your answers to questions 8 and 9 on the diagram below and on your knowledge of Earth science. The diagram represents a portion of the scheme for igneous rock identification.
    [Show full text]
  • Arf9 Ar Isotopic Dating of the H Orserace Quartz Diorite and Its Bearing on Age Relationships in the Kaltlhdin Batholith-Travele
    Maine Geological Survey Studies in Maine Geology: Volume 4 1989 40Arf9Ar Isotopic Dating of the H orserace Quartz Diorite and its Bearing on Age Relationships in the Kaltlhdin Batholith-Traveler Rhyolite System A. Scott Denning* Daniel R. Lux Department ofGeological Sciences University of Maine Orono, Maine 04469 *Present address: Department ofAtmospheric Sciences Colorado State University Fort Collins, Colorado 80523 ABSTRACT The Horserace quartz diorite is a small pluton that intrudes the Katahdin granite in north-central Maine. However, some field observations and geochemical data suggest that the Horserace quartz diorite may have been nearly contemporaneous with the Katahdin granite, which is believed to be the intrusive equivalent of the Traveler rhyolite. Stratigraphic control of the Traveler rhyolite is adequate such that reliable age data would provide an Early Devonian time scale correlation point. Thus, it was hoped that by dating the Horserace quartz diorite we could effectively date the Traveler rhyolite and provide an absolute time point for the stratigraphic time scale. Four hornblende samples from the Horserace quartz diorite dated by the 40Ar/3 9 Ar incremental heating technique yield plateau age spectra concordant at 2 sigma with a mean of 374.9± 3.2 Ma. Biotite samples from the Horserace quartz diorite do not yield plateau spectra, but total gas ages average 374 Ma, suggesting that the Horserace quartz diorite cooled quickly through the Ar closure temperatures for both hornblende and biotite (about SS0°C and 3S0°C respectively). A single release spectrum for a biotite from the Katahdin granite yields a plateau age of 400.1 ± 1.0 Ma.
    [Show full text]
  • 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)
    [Show full text]
  • The Boulder Creek Batholith, Front Range, Colorado
    I u The Boulder Creek Batholith, Front Range, Colorado By DOLORES J. GABLE GEOLOGICAL SURVEY PROFESSIONAL PAPER 1101 A study of differentiation, assimilation, and origin of a granodiorite batholith showing interrelated differences in chemistry and mineralogy in the batholith and cogenetic rock types UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1980 UNITED STATES DEPARTMENT OF THE INTERIOR CECIL D. ANDRUS, Secretary GEOLOGICAL SURVEY H. William Menard, Director Library of Congress Cataloging in Publication Data Gable, Dolores J. 1922- The Boulder Creek batholith, Front Range, Colorado (Geological Survey Professional Paper 1101) Bibliography: p. 85 Supt. of Docs. No.: I 19.16:1101 1. Batholiths Colorado Boulder region. I. Title. II. Series: United States Geological Survey Professional Paper 1101. QE611.5.U6G3 551.8; 8 78-24482 For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402 CONTENTS Page Page Abstract................................................ 1 Origin of the Boulder Creek Granodiorite and the Twin Introduction ............................................ 1 Spruce Quartz Monzonite .......................... 62 Previous work........................................... 2 Mineralogy, petrology, and chemistry of minerals in the Techniques used in this study ............................ 2 batholith.......................................... 64 Geologic setting ......................................... 3 Biotite ...'........................................... 64 The batholith ..........................................
    [Show full text]
  • Preliminary Geologic Map of the Mount Baker 30- by 60-Minute Quadrangle, Washington
    U.S. DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY Preliminary Geologic Map of the Mount Baker 30- by 60-Minute Quadrangle, Washington by R.W. Tabor1 , R.A. Haugerud2, D.B. Booth3, and E.H. Brown4 Prepared in cooperation with the Washington State Department of Natural Resources, Division of Geology and Earth Resources, Olympia, Washington, 98504 OPEN FILE REPORT 94-403 This report is preliminary and has not been reviewed for conformity with U.S.Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. iu.S.G.S., Menlo Park, California 94025 2U.S.G.S., University of Washington, AJ-20, Seattle, Washington 98195 3SWMD, King County Department of Public Works, Seattle, Washington, 98104 ^Department of Geology, Western Washington University, Bellingham, Washington 98225 INTRODUCTION The Mount Baker 30- by 60-minute quadrangle encompasses rocks and structures that represent the essence of North Cascade geology. The quadrangle is mostly rugged and remote and includes much of the North Cascade National Park and several dedicated Wilderness areas managed by the U.S. Forest Service. Geologic exploration has been slow and difficult. In 1858 George Gibbs (1874) ascended the Skagit River part way to begin the geographic and geologic exploration of the North Cascades. In 1901, Reginald Daly (1912) surveyed the 49th parallel along the Canadian side of the border, and George Smith and Frank Calkins (1904) surveyed the United States' side. Daly's exhaustive report was the first attempt to synthesize what has become an extremely complicated geologic story.
    [Show full text]
  • Geologic Map of the North Cascade Range, Washington by Ralph A
    Prepared in cooperation with Washington State Division of Geology and Earth Resources, U.S. National Park Service, and U.S. Forest Service Geologic Map of the North Cascade Range, Washington By Ralph A. Haugerud and Rowland W. Tabor Nontechnical pamphlet to accompany Scientific Investigations Map 2940 Looking south from the North Klawatti Glacier [Mbse]. In the right foreground, the glacier breaks into a heavily crevassed icefall where it descends steeply. Rock in the foreground knob is Eldorado Orthogneiss (unit TKgo), a 90 million-year-old stitching pluton, which here includes numerous dikes of light- colored pegmatite. Mount Buckner on the left skyline and Mount Forbidden hidden in clouds are also eroded from the Eldorado Orthogneiss (photographed in 1987). 2009 U.S. Department of the Interior U.S. Geological Survey CONTENTS Introduction.....................................................................................................................................................1 Using this report ....................................................................................................................................1 Map preparation ...................................................................................................................................1 Major sources of new data .................................................................................................................1 Acknowledgments ................................................................................................................................2
    [Show full text]
  • Chemical and Physical Controls for Base Met Al Deposition in the Cascade Range of Washington
    State of Washington Department of Natural Resources BERT L. COLE, Commissioner of Public Lands DIVISION OF MINES AND GEOLOGY MARSHALL T. HUNTTING, Supervisor Bulletin No. 58 CHEMICAL AND PHYSICAL CONTROLS FOR BASE MET AL DEPOSITION IN THE CASCADE RANGE OF WASHINGTON By ALAN ROBERT GRANT STATE PRINTING PLANT ~ OLYMPIA, WASHINCTON 1969 For safe by Department of Natural Resources, Olympia, Washington. Price $1.50 Errata sheet for Washington Division of Mines and Geology Bulletin 58, Chemical and Physical Controls for Base Metal Deeosition in the Cascade Range of Washington ( By Alan Robert Grant Errors noted in the p-inted text are listed below. The editors regret these and possibly other mistakes in editing. Page 12 Paragraph 5, line 2, "heliocpter" should read helicopter. 14 Paragraph 6, line 6, •programed" should read programmed. 15 Figure 2, 11 Ntesoic" in explanation should read Mesozoic. 19 Paragraph 4, line 7, "authochthonous" should read autochthonous. 22 Paragraph 6, line 4, "extension Ntesozoic 11 should read exten•ioo.o f 1l1e Mesozoic. 22 Paragraph 7, line 1, ''aforemention" should read aforementioned. 25 Paragraph 4, line 7, "Misch" should be changed to Vance. 25 Paragraph 7, line 7, "Totoosh, pluton" should read Totoosh pluton. 26 Paragraph 1, line 4, "classical" should read classic. 32 Paragraph 4, line 1, "alkaline" should be changed to acidic intrusive. 33 Paragraph 1, line 1, "alkaline" should be changed to acidic intrusive. 48 Une 3 of Figure 16 caption, "alkaline" should be changed to acidic intrusive~ 49 Paragraph 3, line 5, "Creasy" should read Creasey. 51 Paragraph 3, line 1, "Creasy II should read Creasey.
    [Show full text]
  • Archean Rocks of the Diorite Window Block in the Southern Framing of the Monchegorsk (2.5 Ga) Layered Mafic-Ultramafic Complex (Kola Peninsula, Russia)
    minerals Article Archean Rocks of the Diorite Window Block in the Southern Framing of the Monchegorsk (2.5 Ga) Layered Mafic-Ultramafic Complex (Kola Peninsula, Russia) Pavel Pripachkin *, Tatiana Rundkvist, Nikolay Groshev , Aiya Bazai and Pavel Serov Geological Institute—subdivision of the Federal Research Centre, Kola Science Centre of the Russian Academy of Sciences, Fersman St. 14, Apatity 184209, Russia; [email protected] (T.R.); [email protected] (N.G.); [email protected] (A.B.); [email protected] (P.S.) * Correspondence: [email protected] Received: 24 July 2020; Accepted: 24 September 2020; Published: 25 September 2020 Abstract: The intermediate rocks classified as diorite-gneisses occur within the southern part of the Monchegorsk (2.5 Ga) layered mafic-ultramafic complex (Kola Peninsula, Russia). These diorite-gneisses belong to a block historically known as the diorite window (DW) block. The same rocks occur in a framing of the Monchegorsk complex. The DW block is predominantly composed of diorite-gneisses and, to a lesser degree, of amphibolites. Multi-ordinal banding, complex folding, boudinage and metamorphic transformations, garnet porphyroblasts, and tourmaline veinlets are typical of the diorite-gneisses. In accordance with the U-Pb isotope data, the age of the diorite-gneisses in the DW block is 2736.0 4.6 Ma. The Sm-Nd mineral (garnet, biotite, ± and tourmaline) isochron for the DW rocks has yielded an age of 1806 23 Ma (related to the processes ± of the Svecofennian orogeny). The DW diorite-gneisses are compared with the metadiorites of the Gabbro-10 massif. The latter is a part of the Monchegorsk complex, with U-Pb crystallization age of 2498 6 Ma.
    [Show full text]
  • Igneous Rocks
    What is Igneous Rock? Earth’s crust is 4/5 igneous rock. Every igneous rock begins life as molten magma deep in the mantle. As magma migrates toward the surface, some of it chills and hardens Igneous underground into granite and other types of igneous rocks. Rocks Magma that makes it to the surface erupts in either flowing or explosive volcanoes, generating lava, geysers, and hot springs. http://www.soest.hawaii.edu/coasts/lecture/gg101/index.html Igneous rock crystallizes in Earth’s magma locations Extrusive igneous rock Intrusive igneous rock crystallizes within Earth’s crust. Intrusive igneous rock Extrusive igneous rock crystallizes upon Earth’s crust. 1 As magma crystallizes a network of interlocking Igneous Rocks minerals develops. The composition and • Igneous Rocks are named on the basis of texture of the resulting rock is determined by the ir tttexture and composition. these minerals. Composition of a rock is the assemblage of minerals it contains. Texture of a rock is the size and arrangement of the minerals it contains. Texture Texture Aphanitic texture - mineral grains too small to see with the unaided eye (Basalt) Phaneritic texture - with large minerals (Granite) Large crystals had a long time to crystallize. Small crystals had a short time to crystallize. Therefore, this is an intrusive rock Therefore, this is an extrusive rock 2 Texture Texture Glassy texture - without Vesicular texture – many pits obvious minerals (Obsidian) from gas escape (Basalt) No crystals. This is an extrusive rock. Extrusive rock. Composition Texture
    [Show full text]