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The Influence of Hydrology and Climate on the Isotope Geochemistry
Sedimentology (2007) doi: 10.1111/j.1365-3091.2007.00932.x The influence of hydrology and climate on the isotope geochemistry of playa carbonates: a study from Pilot Valley, NV, USA CYNTHIA M. LIUTKUS* and JAMES D. WRIGHT *Department of Geology, Appalachian State University, ASU Box 32067, Boone, NC 28608, USA (E-mail: [email protected]) Department of Geological Sciences, Rutgers University, 610 Taylor Road, Piscataway, NJ 08854, USA ABSTRACT Carbonates often accompany lake and lake-margin deposits in both modern and ancient geological settings. If these carbonates are formed in standing water, their stable isotope values reflect the aquatic chemistry at the time of precipitation and may provide a proxy for determining regional hydrologic conditions. Carbonate rhizoliths and water samples were collected from a playa lake in eastern Nevada. Pilot Valley (43°N) is a closed-basin, remnant playa from the Quaternary desiccation of palaeo-Lake Bonneville. Water is added to the playa margin by free convection of dense brines to the east and forced convection of freshwater off the alluvial fan to the west. Both freshwater and saline springs dot the playa margin at the base of an alluvial fan. Water samples collected from seven springs show a range from )16 to )0Æ2& (Vienna Standard Mean Ocean Water), and are consistent with published values. The 18 ) ) d Ocalcite values from rhizolith samples range from 18Æ3to 6Æ7& (Vienna Pee Dee Belemnite), and the average is )12& V-PDB (1 ) r SD 2&). With the 18 exception of samples from Little Salt Spring, the range in the d Ocalcite values collected from the rhizoliths confirms that they form in equilibrium with ambient water conditions on the playa. -
A Bibliography of Scientific Information on Fraser River Basin Environmental Quality
--- . ENVIRONMENT CANADA — b- A BIBLIOGRAPHY OF SCIENTIFIC INFORMATION ON FRASER RIVER BASIN ENVIRONMENTAL QUALITY . 1994 Supplement e Prepared on contract by: Heidi Missler . 3870 West 11th Avenue Vancouver, B.C. V6R 2K9 k ENVIRONMENTAL CONSERVATION BRANCH PACIFIC AND YUKON REGION NORTH VANCOUVER, B.C. L- ,- June 1994 DOE FRAP 1994-11 *- \- i — --- ABSTRACT -. -. This bibliography is the third in a series of continuing reference books on the Fraser River watershed. It includes 920 references of scientific information on the environmental I quality of the Fraser River basin and is both an update and an extension of the preceding -. bibliography printed in 1992. ,= 1- ,- . 1- 1- !- 1 - — ii — RESUME — La presente bibliographic est la troiseme clans une serie continue portant sur le bassin du fleuve Fraser. Elle comprend 920 citations scientifiques traitant de la qualite de l’environnement clans le bassin du fleuve Fraser, et elle constitue une mise a jour de la bibliographic precedence, publiee en 1992. — — — ---- — —. .— — — ,- .— ... 111 L TABLE OF CONTENTS Page Abstract ‘ i Resume ii Introduction iv References Cited v Acknowledgements vi Figure: 1. Fraser River Watershed Divisions , vii ... Tables: 1. Reference Locations Vlll 2. Geographic Location Keywords ix 3. Physical Environment Keywords x 4. Contamination Kefiords xi, 5. Water Quality Keywords xii . ... 6. Natural Resources Keywords Xlll 7. Biota Keywords xiv 8. General Keywords xv Section One: Author Index Section Two: Title Index \ 117 ( L iv INTRODUCTION This bibliography is the third in a series of continuing reference books on the Fraser River watershed. With its 920 references of scientific information on the environmental quality of the , -. -
The Toxicological Effects of the Mount Polley Tailings Impoundment Breach on Freshwater Amphipods
THE TOXICOLOGICAL EFFECTS OF THE MOUNT POLLEY TAILINGS IMPOUNDMENT BREACH ON FRESHWATER AMPHIPODS RAEGAN D. PLOMP Bachelor of Science, University of Lethbridge, 2017 A thesis submitted in partial fulfilment of the requirements for the degree of MASTER OF SCIENCE in BIOLOGICAL SCIENCES Department of Biological Sciences University of Lethbridge LETHBRIDGE, ALBERTA, CANADA © Raegan Plomp, 2019 THE TOXICOLOGICAL EFFECTS OF THE MOUNT POLLEY TAILINGS IMPOUNDMENT BREACH ON FRESHWATER AMPHIPODS RAEGAN D. PLOMP Date of Defence: September 6, 2019 Dr. G. Pyle Professor Ph.D. Supervisor Dr. S. Wiseman Associate Professor Ph.D. Thesis Examination Committee Member Dr. R. Laird Associate Professor Ph.D. Thesis Examination Committee Member Dr. Laura Chasmer Assistant Professor Ph.D. Internal External Examiner Department of Geography Dr. T. Russell Associate Professor Ph.D. Chair, Thesis Examination Committee ii Abstract The bioavailability and toxicity of metals to amphipods is influenced by exposure route and co-toxic mechanisms. Metal bioavailability was studied in amphipods at sites affected by the 2014 Mount Polley Mining Corporation tailings impoundment breach. The area around the lake was also subjected to wildfire in 2017. Bioavailability was more correlated with sediment than waterborne metal concentrations with Cu correlating well with distance from the breach. Copper-sediment bioavailability to amphipods in combination with wildfire runoff was studied resulting in non-additive toxicity. Hyalella azteca exposed to Cu-enriched sediment with fire extract (FE) experienced a more-than- additive effect on survival and amphipod whole-body Cu concentration but no significant reduction in growth or acetylcholinesterase activity compared to the Cu-contaminated sediment or FE alone, respectively. -
British Columbia Vegetation and Climate History with Focus on 6 Ka BP
Document generated on 10/01/2021 4:51 p.m. Géographie physique et Quaternaire British Columbia Vegetation and Climate History with Focus on 6 ka BP Histoire du climat et de la végétation de la Colombie-Britannique, notamment de la période de 6 ka BP Geschichte der Vegetation und des Klimas in British Columbia während des Holozäns, besonders um 6 ka v.u.Z. Richard J. Hebda La paléogéographie et la paléoécologie d’il y a 6000 ans BP au Canada Article abstract Paleogeography and Paleoecology of 6000 yr BP in Canada British Columbia Holocene vegetation and climate is reconstructed from pollen Volume 49, Number 1, 1995 records. A coastal Pinus contorta paleobiome developed after glacier retreat under cool and probably dry climate. Cool moist forests involving Picea, Abies, URI: https://id.erudit.org/iderudit/033030ar Tsuga spp., and Pinus followed until the early Holocene. Pseudotsuga menziesii DOI: https://doi.org/10.7202/033030ar arrived and spread in the south 10 000-9000 BP, and Picea sitchensis - Tsuga heterophylla forests developed in the north. T. heterophylla increased 7500-7000 BP, and Cupressaceae expanded 5000-4000 BP. Bogs began to See table of contents develop and expland. Modern vegetation arose 4000-2000 BP. There were early Holocene grass and Artemisia communities at mid-elevations and pine stands at high elevations in southern interior B.C. Forests expanded downslope and Publisher(s) lakes formed 8500-7000 BP. Modern forests arose 4500-4000 BP while lower and upper tree lines declined. In northern B.C. non-arboreal communities Les Presses de l'Université de Montréal preceded middle Holocene Picea forests. -
Lode-Goijd Deposits
BRITISH COLUMBIA DEPARTMENT OF MINES HON. E. C. CARSON, Minisfer JOHN F. WALKER, Deputy Minister . BULLETIN NO. 20-PART 11. LODE-GOIJD DEPOSITS South-eastern British Columbia by W.H. MATHEWS PREFACE. Bulletin 20, designed for the use of thoseinterested in the discovery of gold- bearing lode deposits, is being published as a series of separate parts. Part I. is to contain information about lode-gold production in British Columbia as awhole, and will be accompanied by a map on which the generalized geology of the Province is rep- resented. The approximate total production of each lode-gold mining centre, exclusive of by-product gold, is also indicated on the map. Each of the other parts deals with a , major subdivision of the Province, giving information about the geology, gold-bearing lode deposits, and lode-gold production of areas within the particular subdivision. In all, seven parts are proposed:- PARTI.-General re Lode-gold Production in British Columbia. PART11.-South-eastern Britis:h Columbia. ’ PART111.-Central Southern British Columbia. PART1V.-South-western British Columbia, exclusive of Vancouver Island, PARTV.-Vancouver Island. PARTVI.-North-eastern British Columbia, including the Cariboo and Hobson Creek Areas. PARTVI1.-North-western British Columbia. Bykind permission of Professor H. C. Gunning,Department ofGeology, Uni- versity of British Columbia, his compilation of the geology of British Columbia has been follo-wed in the generalized geology represented on the map accompanying Part I. Professor Gunning’s map was published in “The Miner,” Vancouver, B.C., June-July, 1943, and in “The Northern Miner,” Toronto, Ont., December 16th, 1943. -
Geological Branch Assesssent Ztwppbt Table of Contents
I 1984 Assessment Report I Geological and Geochemical Surveys Claim: TREASURE MOUNTAIN Commodity: Copper, Gold Location: Kanaka Creek 10 Km NE of Haney 92G 8W 122' RbtW; ~f9~17- New Westminster M.D. Consul tant L. Sookochoff, P.Eng and Sookochoff Consultants Inc. Author: 31 1-409 Granville Street Vancouver, B.C. , V6C 1T2 Owner and MODULE RESOURCES INC. Operator: Vancouver , B.C. Work Dates: August 13, 1984 to August 23, 1984 Submittal Date: October 2, 1984. GEOLOGICAL BRANCH ASSESSSENT ZTWPPBT TABLE OF CONTENTS INTRODUCTION ---,-------------------------------------------- 1- / PROPERTY ................................................... lo/ LOCATION AND ACCESS ........................................ 2 *< PHYSIOGRAPHY ............................................... 2*/ WATER AND POWER ............................................ 2 *' HISTORY .................................................... 2 */ GEOLOGY .................................................... 4 */ GEOCHEMICAL SURVEY ......................................... 5 ./ RESULTS OF THE 1984 EXPLORATION PROGRAM .................... 6 J CONCLUSIONS ................................................ 8 r RECOMMENDATIONS ............................................ 8 / BIBLIOGRAPHY ............................................... 9 r CERTIFICATE ................................................ 10, STATEMENT OF COSTS ......................................... 11 / ILLUSTRATIONS FIGURE 1 GEOLOGY & CLAIM MAP FIGURE 2 INDEX & CLAIM MAP FIGURE 3 GEOLOGY MAP FIGURE 4 ARSENIC GEOCHEM MAP FIGURE -
Understanding the Source of Water for Selected Springs Within Mojave Trails National Monument, California
ENVIRONMENTAL FORENSICS, 2018 VOL. 19, NO. 2, 99–111 https://doi.org/10.1080/15275922.2018.1448909 Understanding the source of water for selected springs within Mojave Trails National Monument, California Andy Zdon, PG, CHg, CEGa, M. Lee Davisson, PGb and Adam H. Love, Ph.D.c aTechnical Director – Water Resources, PARTNER ENGINEERING AND SCIENCE, INC., Santa Ana, CA, Sacramento, CA; bML Davisson & Associates, Inc., Livermore, CA; cVice President/Principal Scientist, Roux Associates, Inc., Oakland, CA ABSTRACT KEYWORDS While water sources that sustain many of the springs in the Mojave Desert have been poorly Water resources; clipper understood, the desert ecosystem can be highly dependent on such resources. This evaluation mountains; bonanza spring; updates the water resource forensics of Bonanza Spring, the largest spring in the southeastern groundwater; forensics; Mojave Desert. The source of spring flow at Bonanza Spring was evaluated through an integration isotopes of published geologic maps, measured groundwater levels, water quality chemistry, and isotope data compiled from both published sources and new samples collected for water chemistry and isotopic composition. The results indicate that Bonanza Spring has a regional water source, in hydraulic communication with basin fill aquifer systems. Neighboring Lower Bonanza Spring appears to primarily be a downstream manifestation of surfacing water originally discharged from the Bonanza Spring source. Whereas other springs in the area, Hummingbird, Chuckwalla, and Teresa Springs, each appear to be locally sourced as “perched” springs. These conclusions have important implications for managing activities that have the potential to impact the desert ecosystem. Introduction above Bonanza Spring. Identification of future impacts General information and data regarding springs in the from water resource utilization becomes problematic if Mojave Desert are sparse, and many of these springs are initial baseline conditions are unknown or poorly under- not well understood. -
Wilderness Study Areas
I ___- .-ll..l .“..l..““l.--..- I. _.^.___” _^.__.._._ - ._____.-.-.. ------ FEDERAL LAND M.ANAGEMENT Status and Uses of Wilderness Study Areas I 150156 RESTRICTED--Not to be released outside the General Accounting Wice unless specifically approved by the Office of Congressional Relations. ssBO4’8 RELEASED ---- ---. - (;Ao/li:( ‘I:I)-!L~-l~~lL - United States General Accounting OfTice GAO Washington, D.C. 20548 Resources, Community, and Economic Development Division B-262989 September 23,1993 The Honorable Bruce F. Vento Chairman, Subcommittee on National Parks, Forests, and Public Lands Committee on Natural Resources House of Representatives Dear Mr. Chairman: Concerned about alleged degradation of areas being considered for possible inclusion in the National Wilderness Preservation System (wilderness study areas), you requested that we provide you with information on the types and effects of activities in these study areas. As agreed with your office, we gathered information on areas managed by two agencies: the Department of the Interior’s Bureau of Land Management (BLN) and the Department of Agriculture’s Forest Service. Specifically, this report provides information on (1) legislative guidance and the agency policies governing wilderness study area management, (2) the various activities and uses occurring in the agencies’ study areas, (3) the ways these activities and uses affect the areas, and (4) agency actions to monitor and restrict these uses and to repair damage resulting from them. Appendixes I and II provide data on the number, acreage, and locations of wilderness study areas managed by BLM and the Forest Service, as well as data on the types of uses occurring in the areas. -
Slocan Lake 2007 - 2010
BC Lake Stewardship and Monitoring Program Slocan Lake 2007 - 2010 A partnership between the BC Lake Stewardship Society and the Ministry of Environment The Importance of Slocan Lake & its Watershed British Columbians want lakes to provide good water quality, quality of the water resource is largely determined by a water- aesthetics, and recreational opportunities. When these features shed’s capacity to buffer impacts and absorb pollution. are not apparent in our local lakes, people begin to wonder why. Concerns often include whether the water quality is getting Every component of a watershed (vegetation, soil, wildlife, etc.) worse, if the lake has been impacted by land development or has an important function in maintaining good water quality and a other human activities, and what conditions will result from more healthy aquatic environment. It is a common misconception that development within the watershed. detrimental land use practices will not impact water quality if they are kept away from the area immediately surrounding a water- The BC Lake Stewardship Society (BCLSS), in collaboration body. Poor land use practices in a watershed can eventually im- with the Ministry of Environment (MoE), has designed a pro- pact the water quality of the downstream environment. gram, entitled The BC Lake Stewardship and Monitoring Pro- gram, to address these concerns. Through regular water sample Human activities that impact water bodies range from small but collections, we can come to understand a lake's current water widespread and numerous non-point sources throughout the wa- quality, identify the preferred uses for a given lake, and monitor tershed to large point sources of concentrated pollution (e.g. -
Evaluation of Techniques for Flood Quantile Estimation in Canada
Evaluation of Techniques for Flood Quantile Estimation in Canada by Shabnam Mostofi Zadeh A thesis presented to the University of Waterloo in fulfillment of the thesis requirement for the degree of Doctor of Philosophy in Civil Engineering Waterloo, Ontario, Canada, 2019 ©Shabnam Mostofi Zadeh 2019 Examining Committee Membership The following are the members who served on the Examining Committee for this thesis. The decision of the Examining Committee is by majority vote. External Examiner Veronica Webster Associate Professor Supervisor Donald H. Burn Professor Internal Member William K. Annable Associate Professor Internal Member Liping Fu Professor Internal-External Member Kumaraswamy Ponnambalam Professor ii Author’s Declaration This thesis consists of material all of which I authored or co-authored: see Statement of Contributions included in the thesis. This is a true copy of the thesis, including any required final revisions, as accepted by my examiners. I understand that my thesis may be made electronically available to the public. iii Statement of Contributions Chapter 2 was produced by Shabnam Mostofi Zadeh in collaboration with Donald Burn. Shabnam Mostofi Zadeh conceived of the presented idea, developed the models, carried out the experiments, and performed the computations under the supervision of Donald Burn. Donald Burn contributed to the interpretation of the results and provided input on the written manuscript. Chapter 3 was completed in collaboration with Martin Durocher, Postdoctoral Fellow of the Department of Civil and Environmental Engineering, University of Waterloo, Donald Burn of the Department of Civil and Environmental Engineering, University of Waterloo, and Fahim Ashkar, of University of Moncton. The original ideas in this work were jointly conceived by the group. -
Desert Bighorn Sheep Report
California Department of Fish and Wildlife Region 6 Desert Bighorn Sheep Status Report November 2013 to October 2016 A summary of desert bighorn sheep population monitoring and management by the California Department of Fish and Wildlife Authors: Paige Prentice, Ashley Evans, Danielle Glass, Richard Ianniello, and Tom Stephenson Inland Deserts Region California Department of Fish and Wildlife Desert Bighorn Status Report 2013-2016 California Department of Fish and Wildlife Inland Deserts Region 787 N. Main Street Ste. 220 Bishop, CA 93514 www.wildlife.ca.gov This document was finalized on September 6, 2018 Page 2 of 40 California Department of Fish and Wildlife Desert Bighorn Status Report 2013-2016 Table of Contents Executive Summary …………………………………………………………………………………………………………………………………4 I. Monitoring ............................................................................................................................................ 6 A. Data Collection Methods .................................................................................................................. 7 1. Capture Methods .......................................................................................................................... 7 2. Survey Methods ............................................................................................................................ 8 B. Results and Discussion .................................................................................................................... 10 1. Capture Data .............................................................................................................................. -
MANAGEMENT PLAN November 2003
MANAGEMENT PLAN November 2003 for Stikine Country Protected Areas Mount Edziza Provincial Park Mount Edziza Protected Area (Proposed) Stikine River Provincial Park Spatsizi Plateau Wilderness Provincial Park Gladys Lake Ecological Reserve Ministry of Water, Land Pitman River Protected Area and Air Protection Environmental Stewardship Chukachida Protected Area Division Skeena Region Tatlatui Provincial Park Stikine Country Protected Areas M ANAGEMENT LAN P November 2003 Prepared by Skeena Region Environmental Stewardship Division Smithers BC Stikine Country Protected Areas Management Plan National Library of Canada Cataloguing in Publication Data British Columbia. Environmental Stewardship Division. Skeena Region. Stikine Country Protected Areas management plan Cover title: Management plan for Stikine Country Protected Areas. Issued by: Ministry of Water, Land and Air Protection, Environmental Stewardship Division, Skeena Region. “November 2003” “Mount Edziza Provincial Park, Mount Edziza Protected Area (Proposed), Stikine River Provincial Park, Spatsizi Plateau Wilderness Provincial Park, Gladys Lake Ecological Reserve, Pitman River Protected Area, Chukachida Protected Area, Tatlatui Provincial Park”—Cover. Also available on the Internet. Includes bibliographical references: p. ISBN 0-7726-5124-8 1. Protected areas - British Columbia – Stikine Region. 2. Provincial parks and reserves - British Columbia – Stikine Region. 3. Ecosystem management - British Columbia – Stikine Region. I. British Columbia. Ministry of Water, Land and Air Protection.