EMR 221 4Th WEEK TEXTURES of IGNEOUS ROCKS
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Volcanology and Mineral Deposits
THESE TERMS GOVERN YOUR USE OF THIS DOCUMENT Your use of this Ontario Geological Survey document (the “Content”) is governed by the terms set out on this page (“Terms of Use”). By downloading this Content, you (the “User”) have accepted, and have agreed to be bound by, the Terms of Use. Content: This Content is offered by the Province of Ontario’s Ministry of Northern Development and Mines (MNDM) as a public service, on an “as-is” basis. Recommendations and statements of opinion expressed in the Content are those of the author or authors and are not to be construed as statement of government policy. You are solely responsible for your use of the Content. You should not rely on the Content for legal advice nor as authoritative in your particular circumstances. Users should verify the accuracy and applicability of any Content before acting on it. MNDM does not guarantee, or make any warranty express or implied, that the Content is current, accurate, complete or reliable. MNDM is not responsible for any damage however caused, which results, directly or indirectly, from your use of the Content. MNDM assumes no legal liability or responsibility for the Content whatsoever. Links to Other Web Sites: This Content may contain links, to Web sites that are not operated by MNDM. Linked Web sites may not be available in French. MNDM neither endorses nor assumes any responsibility for the safety, accuracy or availability of linked Web sites or the information contained on them. The linked Web sites, their operation and content are the responsibility of the person or entity for which they were created or maintained (the “Owner”). -
Dictionary of Geology and Mineralogy
McGraw-Hill Dictionary of Geology and Mineralogy Second Edition McGraw-Hill New York Chicago San Francisco Lisbon London Madrid Mexico City Milan New Delhi San Juan Seoul Singapore Sydney Toronto All text in the dictionary was published previously in the McGRAW-HILL DICTIONARY OF SCIENTIFIC AND TECHNICAL TERMS, Sixth Edition, copyright ᭧ 2003 by The McGraw-Hill Companies, Inc. All rights reserved. McGRAW-HILL DICTIONARY OF GEOLOGY AND MINERALOGY, Second Edi- tion, copyright ᭧ 2003 by The McGraw-Hill Companies, Inc. All rights reserved. Printed in the United States of America. Except as permitted under the United States Copyright Act of 1976, no part of this publication may be reproduced or distributed in any form or by any means, or stored in a database or retrieval system, without the prior written permission of the publisher. 1234567890 DOC/DOC 09876543 ISBN 0-07-141044-9 This book is printed on recycled, acid-free paper containing a mini- mum of 50% recycled, de-inked fiber. This book was set in Helvetica Bold and Novarese Book by the Clarinda Company, Clarinda, Iowa. It was printed and bound by RR Donnelley, The Lakeside Press. McGraw-Hill books are available at special quantity discounts to use as premi- ums and sales promotions, or for use in corporate training programs. For more information, please write to the Director of Special Sales, McGraw-Hill, Professional Publishing, Two Penn Plaza, New York, NY 10121-2298. Or contact your local bookstore. Library of Congress Cataloging-in-Publication Data McGraw-Hill dictionary of geology and mineralogy — 2nd. ed. p. cm. “All text in this dictionary was published previously in the McGraw-Hill dictionary of scientific and technical terms, sixth edition, —T.p. -
Earth Science Field School Guide
Name:____________________________________ Earth Science Field School Field Guide Summer, 2013 PLEASE CARRY THIS GUIDE WITH YOU AT ALL TIMES. Field School Exercise Teams Mt. Tuam Argonaut John Winpard John Cory Emily Alex Emily Ryan Jesse Cory Jesse Landon Brittany Ryan Brittany Dave N. + Winpard Raymond Landon Raymond Jason Jeremy Dave N. Jeremy Sam P. Sam G. Jason Sam G. Serena Carl Sam P. Carl Danae Robert Serena Robert Cole Aysia Danae Aysia Ben David L. Cole David L. Alex *** Bold face students responsible for GPS & FRS radio *** Cover: Mapping at Sayward Beach EARTH SCIENCE FIELD SCHOOL SYLLABUS Instructor: Dr. Dante Canil E-mail: [email protected] Office: SCI A411 Tel: 472-4180 Co-ordinator: Duncan Johannessen E-mail: [email protected] Office: SCI B109 Tel: 721-7352 TA’s: Rameses D’Souza, Sarah Thornton _________________________________________________________________________________________ Optional Reference Texts: • Bevier; 2005. Introduction to Field Geology, McGraw-Hill Ryerson, ISBN-13: 9780070931091 • Coe, A. (ed.); 2010. Geological Field Techniques, Wiley-Blackwell, ISBN 13: 9781444327441 • Lisle, R.J.; 2011. Basic Geological Mapping, Wiley, ISBN-13: 9780470686348 • McClay, K.R.; 1991. The Mapping of Geological Structures, Wiley, ISBN-13: 9780471932437 Course Goals • To develop the skills necessary to enable you to organize, conduct and successfully complete a field- based geological investigation involving the production of geological maps and cross sections, and the development of geological histories based on these. • To provide you with the opportunity to apply those geological skills learned in a classroom setting, including mineral and rock identification, and structural and petrological analysis, in the field. • To enable you to acquire an understanding of the geological evolution of Wrangellia. -
Pillowed Lavas, I: Intrusive Layered Lava Pods and Pillowed Lavas Unalaska Island, Alaska and Pillowed Lavas, II: a Review of Selected Recent Literature by GEORGE L
Pillowed Lavas, I: Intrusive Layered Lava Pods and Pillowed Lavas Unalaska Island, Alaska and Pillowed Lavas, II: A Review of Selected Recent Literature By GEORGE L. SNYDER and GEORGE D. FRASER SHORTER CONTRIBUTIONS TO GENERAL GEOLOGY GEOLOGICAL SURVEY PROFESSIONAL PAPER 454-B, C UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1963 UNITED STATES DEPARTMENT OF THE INTERIOR STEW ART L. UDALL, Secretary GEOLOGICAL SURVEY Thomas B. Nolan, Director For sale by the Superintendent of Documents, U.S. Government Printing Office Washington 25, D.C. Pillowed Lavas, I: Intrusive Layered Lava Pods and Pillowed Lavas Unalaska Island, Alaska By GEORGE L. SNYDER and GEORGE D. ERASER SHORTER CONTRIBUTIONS TO GENERAL GEOLOGY GEOLOGICAL SURVEY PROFESSIONAL PAPER 454-B CONTENTS Page Description of pillowed lava and lava pods Continued Page Abstract___________________________________________ Bl Lava pods Continued Introduction and acknowledgments. __________________ 1 Descriptions of lava pods in specific areas Cont. Geologic setting__ __________________________________ 1 Surveyor Bay area-_------__--_--------- Bll Description of pillowed lava and lava pods_.___________ 3 Cape Prominence area_--_----_--_-_----- 11 Pillowed lava_---__________-_________-__________ 3 Eagle Bay area-____------___-_--------- 14 Pillows____________________________________ 3 Lance Point area_ __--------_--__---_--- 14 Matrix___________________________________ 4 Origin of pillowed lava and lava pods on Unalaska _____ 14 Lava pods_______________,_____________________ 5 Intrusive origin_________-____-___--_----__------ 15 General features.___________________________ 5 Emplacement in muds and development of mud- Descriptions of lava pods in specific areas_-____ 8 -magma emulsion_________________-____________ 19 Tower Point area_-__-_____-_-_-___-____ 9 /Origin of layers in lava pods and sills ____________ 20 Buttress Point area _____________________ 9 Reconstruction of a typical igneous episode- _______ 21 Tower Point-Lion Bight area________-___. -
A Description of Some Oregon Rocks and Minerals
A DDESCRIPTIONESCRIPTION OF SSOMEOME OOREGONREGON RROCKSOCKS ANDAND MMINERALSINERALS Lfr ° e .` T*3 . t- ' a - + le . .,r > Mk, 9a .e.a, -f $5.50 4-H4 -H 3401L Reprinted August 2006 so Extension Oregon State I OOREGONREGON DDEPARTMENTEPARTMENT OF GEOLOGYGEOLOGY AANDND MMINERALINERAL IINDUSTRIESNDUSTRIES UNIVERSITY Service CONTENTS INTRODUCTION .......................................................................1 ROCK DESCRIPTIONS GENERAL Igneous rocks Minerals defined ............................................... 1 Introduction .................................................. 29 Extrusive igneous rocks: flow rocks (lavas) Rocks defined .................................................... 2 Basalt ...................................................... 29 MINERALS Andesite ................................................... 30 Classification ..................................................... 3 Rhyolite .................................................... 30 Identification ..................................................... 3 Obsidian................................................... 30 Extrusive igneous rocks: pyroclastic rocks ROCKS Pumice .................................................... 31 Igneous rocks ................................................... 4 Cinders .................................................... 32 Sedimentary rocks .......................................... 6 Tuff .......................................................... 32 Metamorphic rocks ........................................ 8 Intrusive igneous