Wanapitei Lake Area
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Physical Environment City Greater Sudbury
Physical Environment–Sudbury; OGS Special Volume 6 Selected Headings for Chapter 9, The Past, Present and Future of Sudbury’s Lakes Abstract......................................................................................................................................................... 195 Introduction .................................................................................................................................................. 195 Geological Control of Sudbury’s Lakes ....................................................................................................... 195 Watersheds and Watershed Units ................................................................................................................. 198 Watersheds in the City ........................................................................................................................... 198 Watershed Units ..................................................................................................................................... 199 Environmental History and Prognosis .......................................................................................................... 199 Pre-Settlement ........................................................................................................................................ 199 The Impact of Industrial Environmental Stresses .................................................................................. 199 Erosion............................................................................................................................................ -
Durham E-Theses
Durham E-Theses Shock metamorphism of potassic feldspars Robertson, P. B. How to cite: Robertson, P. B. (1973) Shock metamorphism of potassic feldspars, Durham theses, Durham University. Available at Durham E-Theses Online: http://etheses.dur.ac.uk/8594/ Use policy The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that: • a full bibliographic reference is made to the original source • a link is made to the metadata record in Durham E-Theses • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders. Please consult the full Durham E-Theses policy for further details. Academic Support Oce, Durham University, University Oce, Old Elvet, Durham DH1 3HP e-mail: [email protected] Tel: +44 0191 334 6107 http://etheses.dur.ac.uk SHOCK METAMORPHISM OF POTASSIC FELDSPARS A thesis submitted for the degree of Doctor of Philosophy in the University of Durham P.B. Robertson Graduate Society October, 1973 ABSTRACT Hypervelocity meteorite impact produces transient pressures as high as several megabars and temperatures in excess of 1500°C. Shock metamorphism describes the effects upon the target rocks, effects most distinctive in the range approximately 100-600kb. Shock deformation produced in potassic feldspars at three terrestrial craters and in experimentally shocked K-spar have been examined. Pressures in natural material were estimated from deformation of coexisting quartz and plagioclase, and in experiments pressures were calculated using impedance matching. -
Hydrothermal Alteration at the Lonar Lake Impact Structure, India: Implications for Impact Cratering on Mars
Meteoritics & Planetary Science 38, Nr 3, 365–381 (2003) Abstract available online at http://meteoritics.org Hydrothermal alteration at the Lonar Lake impact structure, India: Implications for impact cratering on Mars Justin J. HAGERTY* and Horton E. NEWSOM Institute of Meteoritics, Department of Earth & Planetary Sciences, University of New Mexico, Albuquerque, New Mexico 87131, USA *Corresponding author. E-mail: [email protected] (Received 12 June 2002; revision accepted 20 February 2003) Abstract–The 50,000 year old, 1.8 km diameter Lonar crater is one of only two known terrestrial craters to be emplaced in basaltic target rock (the 65 million year old Deccan Traps). The composition of the Lonar basalts is similar to martian basaltic meteorites, which establishes Lonar as an excellent analogue for similarly sized craters on the surface of Mars. Samples from cores drilled into the Lonar crater floor show that there are basaltic impact breccias that have been altered by post-impact hydrothermal processes to produce an assemblage of secondary alteration minerals. Microprobe data and X-ray diffraction analyses show that the alteration mineral assemblage consists primarily of saponite, with minor celadonite, and carbonate. Thermodynamic modeling and terrestrial volcanic analogues were used to demonstrate that these clay minerals formed at temperatures between 130°C and 200°C. By comparing the Lonar alteration assemblage with alteration at other terrestrial craters, we conclude that the Lonar crater represents a lower size limit for impact-induced hydrothermal activity. Based on these results, we suggest that similarly sized craters on Mars have the potential to form hydrothermal systems, as long as liquid water was present on or near the martian surface. -
Multiple Fluvial Reworking of Impact Ejecta—A Case Study from the Ries Crater, Southern Germany
Multiple fluvial reworking of impact ejecta--A case study from the Ries crater, southern Germany Item Type Article; text Authors Buchner, E.; Schmieder, M. Citation Buchner, E., & Schmieder, M. (2009). Multiple fluvial reworking of impact ejecta—A case study from the Ries crater, southern Germany. Meteoritics & Planetary Science, 44(7), 1051-1060. DOI 10.1111/j.1945-5100.2009.tb00787.x Publisher The Meteoritical Society Journal Meteoritics & Planetary Science Rights Copyright © The Meteoritical Society Download date 06/10/2021 20:56:07 Item License http://rightsstatements.org/vocab/InC/1.0/ Version Final published version Link to Item http://hdl.handle.net/10150/656594 Meteoritics & Planetary Science 44, Nr 7, 1051–1060 (2009) Abstract available online at http://meteoritics.org Multiple fluvial reworking of impact ejecta—A case study from the Ries crater, southern Germany Elmar BUCHNER* and Martin SCHMIEDER Institut für Planetologie, Universität Stuttgart, 70174 Stuttgart, Germany *Corresponding author. E-mail: [email protected] (Received 21 July 2008; revision accepted 12 May 2009) Abstract–Impact ejecta eroded and transported by gravity flows, tsunamis, or glaciers have been reported from a number of impact structures on Earth. Impact ejecta reworked by fluvial processes, however, are sparsely mentioned in the literature. This suggests that shocked mineral grains and impact glasses are unstable when eroded and transported in a fluvial system. As a case study, we here present a report of impact ejecta affected by multiple fluvial reworking including rounded quartz grains with planar deformation features and diaplectic quartz and feldspar glass in pebbles of fluvial sandstones from the “Monheimer Höhensande” ~10 km east of the Ries crater in southern Germany. -
Greater Sudbury Source Protection Area Assessment Report
Greater Sudbury Source Protection Area Assessment Report Approved on September 2, 2014 Greater Sudbury Source Protection Area Assessment Report The Greater Sudbury Source Protection Area Assessment Report Introduction Limitations of this Report ......................................................................................... 13 Executive Summary ................................................................................................. 14 Sommaire ................................................................................................................ 18 Acknowledgements ................................................................................................. 21 Foreword ................................................................................................................. 22 Preface .................................................................................................................... 24 Part 1 – Report Overview and Methodology Chapter 1 - Overview of the Assessment Report .................................................... 1-5 Chapter 2 - Water Quality Risk Assessment ........................................................... 1-9 Chapter 3 - Water Quantity Risk Assessment ...................................................... 1-23 Part 2 – The Greater Sudbury Source Protection Area Chapter 4 - The Greater Sudbury Source Protection Area: A Tale of Three Rivers 2-5 Chapter 5 - Drinking Water Systems ...................................................................... 2-7 Chapter -
An Assessment of the Groundwater Resources of Northern Ontario
Hydrogeology of Ontario Series (Report 2) AN ASSESSMENT OF THE GROUNDWATER RESOURCES OF NORTHERN ONTARIO AREAS DRAINING INTO HUDSON BAY, JAMES BAY AND UPPER OTTAWA RIVER BY S. N. SINGER AND C. K. CHENG ENVIRONMENTAL MONITORING AND REPORTING BRANCH MINISTRY OF THE ENVIRONMENT TORONTO ONTARIO 2002 KK PREFACE This report provides a regional assessment of the groundwater resources of areas draining into Hudson Bay, James Bay, and the Upper Ottawa River in northern Ontario in terms of the geologic conditions under which the groundwater flow systems operate. A hydrologic budget approach was used to assess precipitation, streamflow, baseflow, and potential and actual evapotranspiration in seven major basins in the study area on a monthly, annual and long-term basis. The report is intended to provide basic information that can be used for the wise management of the groundwater resources in the study area. Toronto, July 2002. DISCLAIMER The Ontario Ministry of the Environment does not make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply endorsement, recommendation, or favoring by the ministry. KKK TABLE OF CONTENTS Page 1. EXECUTIVE SUMMARY 1 2. INTRODUCTION 7 2.1 LOCATION OF THE STUDY AREA 7 2.2 IMPORTANCE OF SCALE IN HYDROGEOLOGIC STUDIES 7 2.3 PURPOSE AND SCOPE OF THE STUDY 8 2.4 THE SIGNIFICANCE OF THE GROUNDWATER RESOURCES 8 2.5 PREVIOUS INVESTIGATIONS 9 2.6 ACKNOWLEDGEMENTS 13 3. -
The Greater Sudbury Source Protection Area
Part Two The Greater Sudbury Source Protection Area Meandering through one of Canada’s largest mining centres and covering 9,150 km2 are three large river systems: the Vermilion, the Wanapitei and the Whitefish. Approved on September 2, 2014 Minor revisions on March 1, 2017 Greater Sudbury Source Protection Area Assessment Report Table of Contents Chapter 4 – The Greater Sudbury Source Protection Area: A Tale of Three Rivers ... 2-5 Chapter 5 – Drinking Water Systems ............................................................................. 2-7 5.1 Large Municipal Residential Drinking Water Systems ............................................ 2-7 5.2 Small Non-municipal, Non-residential ................................................................... 2-8 5.3 Non-municipal, Year Round Residential ................................................................. 2-8 Chapter 6 – Physical Geography .................................................................................... 2-9 6.1 Topography ............................................................................................................ 2-9 6.2 Soil Characteristics ................................................................................................ 2-9 6.3 Land Cover .......................................................................................................... 2-10 6.4 Forest Cover ........................................................................................................ 2-10 6.5 Wetlands ............................................................................................................. -
Magnetic, Gravity and Seismic Constraints on the Nature of the Wanapitei Lake Impact Crater
Large Meteorite Impacts (2003) 4016.pdf MAGNETIC, GRAVITY AND SEISMIC CONSTRAINTS ON THE NATURE OF THE WANAPITEI LAKE IMPACT CRATER. E. L’Heureux1, H. Ugalde2, B. Milkereit2, N. Eyles3, J. Boyce4 and W. Morris4,1Dept. of Physics, Univ. Toronto, 60 St. George, Toronto, Ontario, Canada, [email protected], 2Dept. of Physics, Univ. Toronto, 60 St. George, Toronto, Ontario, Canada, 3University of Toronto at Scarborough, Toronto, Canada, 4School of Geography and Geology, McMaster Univ., 1280 Main street West, Hamilton, Canada Introduction: The Wanapitei Lake impact crater fects (quartzite fragments and the presence of glass) (46°45’N, 80°45’W) is located in Northern Ontario, that have been found in glacial drift on the southern bounded on its West side by the deformed East rim of shores of the lake [1, 3, 4]. These include boulders of the 1.85 b.y. old Sudbury impact structure. The crater suevite and glassy breccia as well as samples of coesite is believed to be of medium size (with a diameter of [3]. Dressler [2] observed deformation lamellae in a ~7.5 km) and lies entirely within the central, circular few quartz grains at only three locations in the south- portion of the 9 km diameter Wanapitei Lake [1]. Be- western region of the lake. cause the crater lies underwater, there are few con- straints on its actual size: its suggested diameter is based solely on one gravity survey. There are only few samples presenting shock metamorphic features in proximity of the lake, all of which come from glacial drift South of Wanapitei. -
Remove This Report from Blc8. 25
.:WO _______CUfe\J-&£sSU -ILtXJZ-.__________ T REMOVE THIS REPORT FROM BLC8. 25 UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY This report is preliminary and has not been edited or reviewed for conformity with U.S. Geological Survey standards and nomenclature. Prepared by the Geological Survey for the National Aeronautics and Space Administration U )L Interagency Report: 43 GUIDE TO THE GEOLOGY OF SUDBURY BASIN, ONTARIO, CANADA (Apollo 17 Training Exercise, 5/23/72-5/25/72) by I/ 2/ Michael R. Dence , Eugene L. Boudette 2/ and Ivo Lucchitta May 1972 Earth Physics Branch Dept. of Energy, Mines & Resources Ottawa, Canada 21 Center of Astrogeology U. S. Geological Survey Flagstaff, Arizona 86001 ERRATA Guide to the geology of Sudbury Basin, Ontario, Canada by Michael R. Dence, Eugene L. Boudette, and Ivo Lucchitta Page ii. Add "(photograph by G. Mac G. Boone) 11 to caption. iii. P. 2, line 5; delete "the" before "data", iv. P. 1, line 3; add "of Canada, Ltd." after "Company", iv. P. 1, line 7; delete "of Canada" after "Company". v. Move entire section "aerial reconnaissance....etc..." 5 spaces to left margin. 1. P. 2, line 6; add "moderate to" after "dips are". 1. P. 2, line 13; change "strike" to "striking". 2. P. 1, line 2; change "there" to "these". 2. P. 2, line 7; change "(1) breccias" to "breccias (1)". 2. P. 3, line 3; add "slate" after "Onwatin". 4. P. 1, line 7; change "which JLs" to "which are". 7. P. 1, line 9; add "(fig. 3)" after "surveys". 7. P. -
Postglacial Water Levels in the Great Lakes Region in Relation to Holocene Climate Change: Thecamoebian and Palynological Evidence
Postglacial Water Levels in the Great Lakes Region in Relation to Holocene Climate Change: Thecamoebian and Palynological Evidence by Adam Patrick Sarvis, B.Sc. A thesis submitted to the Department of Earth Sciences in partial fulfillment of the requirements for the degree of Master of Science December, 2000 Brock University St. Catharines, Ontario © Adam Patrick Sarvis, 2000 Abstract Various lake phases have developed in the upper Great Lakes in response to isostatic adjustment and changes in water supply since the retreat of the Laurentide Ice Sheet. Georgian Bay experienced a lowstand that caused a basin wide unconformity approximately 7,500 years ago that cannot be explained by geological events. Thecamoebians are shelled protozoans abundant in freshwater environments and they are generally more sensitive to changing environmental conditions than the surrounding vegetation. Thecamoebians can be used to reconstruct the paleolimnology. The abundance of thecamoebians belonging to the genus Centropyxis, which are known to tolerate slightly brackish conditions (i.e. high concentrations of ions) records highly evaporative conditions in a closed basin. During the warmer interval (9000 to 700 yBP), the Centropyxis - dominated population diminishes and is replaced by an abundant and diverse Difflugia dominate population. Historical climate records from Tobermory and Midland, Ontario were correlated with the Lake Huron water level curve. The fossil pollen record and comparison with modem analogues allowed a paleo-water budget to be calculated for Georgian Bay. Transfer function analysis of fossil pollen data from Georgian Bay records cold, dry winters similar to modem day Minneapolis, Minnesota. Drier climates around this time are also recorded in bog environments in Southem Ontario - the drying of Lake Tonawanda and inception of paludification in Willoughby Bog, for instance, dates around 7,000 years ago. -
Canoe Trips in Canada
Si Caiadla DEPARTMENT OF THE INTERIOR HON. THOMAS G. MURPHY - - Minister H. H. ROWATT. C.M.G. - Deputy Minister B. HARKIN - Commissioner National Par^s of Canada, Ottawa CANOE TRIPS IN CANADA Department of the Interior National Parks of Canada Ottawa, 1934 TEN COMMANDMENTS FOR CANOEISTS Build your campfires small, close to the water's edge on a spot from which the leaves and moss have been scraped away. Drown it with water when leaving, and stir the ashes with a stick to make sure no live coals are left. Leave your campsite clean. Bury all rubbish, bottles and cans. Never throw glass or tins in the water where others may bathe. Learn how to swim, and first aid methods. Do not sit or lie on bare ground. Never run a rapid without first making sure that it can be done with safety. Examine it carefully for logs, boulders and other obstructions. Two canoes should not run a rapid at the same time. Do not make your packs too heavy; about 40 pounds is a good average. Avoid crossing large lakes or rivers in rough weather. Make camp before dark. Erecting a tent, or preparing a meal by firelight, is not easy. Learn how to prepare simple meals over a campfire. Unless familiar with wilderness travel, never attempt a trip through uninhabited country without competent guides. Charts of the route and good maps of the sur rounding country are essentials. Canoe Trips in Canada To those who desire a vacation different from the ordinary, a canoe trip holds endless possibilities, and Canada's network of rivers and lakes provides an unlimited choice of routes. -
French River
ONTARIO .... French River lit=: PARKS Management Plan - Minor Amendment ® Ontario 2007 French River Provincial Park Management Plan - Minor Amendment - 2007 _.---..-. "'~- .... APPROVAL STATEMENT I am pleased to approve this Minor Amendment to the French River Provincial Park Management Plan. This minor amendment is a statement of policy update to the original management plan (1992). This minor amendment is based on the direction in Ontario's Living Legacy Land Use Strategy (July 1999) to add the areas identified as the French River Additions (P110) to the existing French River Provincial Park land base. In combination, the original 1992 park management plan and this minor amendment address policies for the protection, management and development of all lands and waters now regulated as part of French River Provincial Park (0. Reg. 257/97). The original management plan and this minor amendment provide gUidance for resource stewardship, operations and development within French River Provincial Park that is consistent with Ontario Parks policies and objectives. February 12, 2007 Paul Bewick Date Zone Manager Northeast Zone Ontario Parks French River Provincial Park Management Plan - Minor Amendment - 2007 TABLE OF CONTENTS PAGE 1.0 INTRODUCTION 1 1.1 OBJECTiVES 1 2.0 MANAGEMENT CONTEXT 1 2.1 ENVIRONMENTAL ASSESSMENT 6 3.0 PARK FEATURES AND VALUES 6 3.1 GEOLOGICAL FEATURES 6 3.2 BIOLOGICAL FEATURES 7 3.3 CULTURAL SETTING 7 3.4 RECREATION 7 4.0 ABORIGINAL USES 7 5.0 STEWARDSHIP POLICIES 8 5.1 TERRESTRIAL ECOSYSTEMS 8 5.1.1 VEGETA TION 8 Harvesting 8 Insects and Disease 8 Fire 8 5.1.2 WILDLIFE MANAGEMENT.