DOCSLIB.ORG

Geology 1977 in British Columbia 1981

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

Geology 1977 in British Columbia 1981 Province of British Columbia Ministry of Energy, Mines and Petroleum Resources I! ,? :j, ., ': British Columbia Cataloguing in Publication Data Main entry under title: Geology in British Columbia.-- 1975-1977/81. Irregular. With: Exploration in British Columbia; and, Mining in British Columbia, ISSN 0823-1265, continues: Geology, exploration and miningin British Columbia, ISSN 0085-1027. 1976 published in 1983. 1977/81 published as a1 volume cummulation. Issuing body varies:1975, Ministry of Mines and Petroleum Resources;1976-1977/81, Ministry of Energy, Mines and Petroleum Resources. ISSN 0823-1257 = Geology in British Columbia 1. Geology - British Columbia - Periodicals. 2. Geology, Economic - British Columbia - Periodicals. 3. Mines and mineral resources- British Columbia- Per- iodicals. I. British Columbia. Ministry of Mines and Petroleum Resources. 11. British Columbia. Ministry of Energy, Mines and Petroleum Resources. ~~187.G46 557.1105 TABLE OF CONTENTS Page Preface ............................................................................................................................................................................................... vii Southeast British Columbia: Geology.. of the Skomac Mine and Boundary Falls Area (82E12) ........................ 1 Fuki, Donen, PB, Kettle, Venus (82E17) ....................................................................................... 12 Geology and Rank Distribution of the Elk Valley Coalfield (82G115; 82J12, 17 24 34 41 44 57 67 69 76 88 91 98 101 103 108 108 110 113 115 120 121 122 123 125 127 129 129 130 132 134 134 139 142 145 148 iii Shas (94Ei2W.3E) ............................................................................................................................................ 156 ToodoggoneRiver (94E).............................................................................................................................. 156 Driftpile Creek(94W4W) ............................................................................................................................. 163 Northwest British Columbia: Star Copper Prospect (104J/4, 5) ....................................................................................................... 175 Moly-Taku (1 04Ki6W) ..................................................................................................................................... 180 CYENG (104NilOW) ..................................................................................................................................... 182 MIR (104NilOW) ................................................................................................................................................. 183 Atlin Silver (Ruffner) Mine (104NillW) ........................................................................................ 184 Cinbar(104N/1 1W)........................................................................................................................................... 185 iv 181 186 188 62 Geology of the Hum Bird area ............................................................................................................. 192 PHOTOGRAPHS PLATES I Panorama of the Skomac minesite, looking northerly at the main portals 2 IIA Chevron folds in Skomac metasedimentary rocks.......................................................... 9 iIB Polished section of sample of Skomac quartz vein showing pyrite, galena, tetrahedrite, and sphalerite................................................................................................ 9 111 View of the study area fromthe south, note anticline-syncline pair on east limb of Alexander Creek syncline, Cadomin Formation con- glomerate exposed in the core of the syncline; Mount Banner Peak in the distance at the left of the photograph ........................................ 27 IV Northwest-plunging dragfold in the hangingwall ofasplay ofthe Ewin Pass thrust ................................................................................................................................................... 27 V View from the north into the Ewin Pass property, approximate Mist Moun- tain-Elk Formation contact marked with arrow, strata dip to the west or right-hand side of the photograph...................................................... 33 V VIView of western crosscutting contact of Cross Kimberlite (K) and the Pennsylvanian country rock................................................................................................ 35 VI1 Viewof easternshear-zone contact of Cross Kimberlite; hard dense intrusive material (lithologies 2 and 3) comprise the outcrops in foreground ............................................................................................................................................ 35 Vlli Boulder of Cross Kimberlite showing texture of lithology 2 ....................................... 36 IX Rounded ultrabasic inclusion of 0.75-metrediameter in crumblyhighly weathered material (lithology1) near the western contactof Cross Kimberlite exposure.................................................................................................................... 36 XA Metavolcanic breccia, map-unit 2, Red Ridge........................................................................ 46 XB Polished hand specimen from exposure in plate................................................................. 46 XIA Massive trachtye porphyry breccia, Rexspar A zone...................................................... 47 XIB Strongly foliated trachyte porphyry breccia, Rexspar A zone................................. 47 XI1 Rootless phase 1 folds outlined by quartzite layers in quartz mica schist, north face of Mount McClennan, looking east.................................................. 48 XlllA Backscattered electron photographof Rexspar ore from A zone........................ 49 XlllB Thorian uraninite grain (light grey)and monzonite [medium grey)in pyrite 49 XlllC Uranium thorium electron scan area in Plate XlllB ........................................................... 50 XlllD Cerium-lanthanum scan of area in Plate XlllB ...................................................................... 50 XlVA Pleochronic rings in fluorphlogopite, Rexspar A zone ................................................... 52 XlVB Strain slip cleavage in fluorphlogopite with fluorite-filled tension gashes, Rexspar Azone .............................................................................................................................. 52 XVA Sheared pyrite and fluorite (dark grey) in ore from Rexspar A zone ................ 53 XVB Sheared pyrite and fluorite (dark grey) in ore from Rexspar A zone ................ 53 XVI Massive banded pyrite with dark grey carbonate nodules ......................................... 170 XVll Sample of dark grey barite with diffuse bands of galena (white) collected from trenches near diamond drillhole 7 ................................................................. 170 XVlll Drill core showing deformed partly recrystallized laminae of white barite . 170 XIX Drill core of finely laminated pyrite showing graded bedding and slump structures ............................................................................................................................................... 170 XX Drillcore of very fine-grained pyrite and argillitelaminae disrupted by secondary dark grey carbonate nodules............................................................... 172 XXI Drill core showing chaotic mixing and slumping of pyrite laminae about secondary carbonate nodules.......................................................................................... 172 XXll Bulldozer trenches at the Star prospect ........................................................ 175 vi In 1969, the Annual Report of the Ministry grew to such a size that it was decided to divide it and initiate anew publication entitled Geologl: Exploration and Mining in British Columbia. The new volume was concerned with publishing geological and technical reports and recording exploration activity in the Province. The first edition, Geology, Exploration and Mining in British Columbia, 1969, was 466 pages, by 1970 it was 561 pages. Exploration activity continued to bloom but our staff did not expand. Inthe mid-1970's re- organizations within the Ministry shifted priorities and put severe pressureon publications production section. Staff turnover was rapid, the section did not grow to match new workload, backlogs began and built rapidly. Weare making a concentrated effort to attempt to eliminate the backlogs and get back on schedule. This volume represents such an attempt. It contains contributions that span four years. The publication, Geology in British Columbia, is supposed to be released annually; we apologize thatproduction difficulties have forcedus to combine several issues in order to catch up. Also because of production difficulties, the volume is small, since little material was submitted after 1977. Ministry geologists switched their efforts and published more preliminary maps, reports in Geological Fieldwork and the Paper series,and in external publications. vii SOUTHEAST BRITISH COLUMBIA (NTS DIVISION 82) 1977"GEOLOGY OF THE SKOMAC MINE AND BOUNDARY FALLS AREA (82El2) By B. N. Church INTRODUCTION: The Skomac mine is a recently revived small gold and silveropera- tion in the Boundary Falls area located 5.5 kilometres
Recommended publications
  • Significance of Mineralogy in the Development of Flowsheets for Processing Uranium Ores

    Significance of Mineralogy in the Development of Flowsheets for Processing Uranium Ores

    JfipwK LEACHING TIME REAGENTS TEMPERATURE FLOCCULANT CLARITY AREA COUNTER CURRENT DECANTATION It 21 21 J^^LJt TECHNICAL REPORTS SERIES No.19 6 Significance of Mineralogy in the Development of Flowsheets for Processing Uranium Ores \W# INTERNATIONAL ATOMIC ENERGY AGENCY, VIENNA, 1980 SIGNIFICANCE OF MINERALOGY IN THE DEVELOPMENT OF FLOWSHEETS FOR PROCESSING URANIUM ORES The following States are Members of the International Atomic Energy Agency: AFGHANISTAN HOLY SEE PHILIPPINES ALBANIA HUNGARY POLAND ALGERIA ICELAND PORTUGAL ARGENTINA INDIA QATAR AUSTRALIA INDONESIA ROMANIA AUSTRIA IRAN SAUDI ARABIA BANGLADESH IRAQ SENEGAL BELGIUM IRELAND SIERRA LEONE BOLIVIA ISRAEL SINGAPORE BRAZIL ITALY SOUTH AFRICA BULGARIA IVORY COAST SPAIN BURMA JAMAICA SRI LANKA BYELORUSSIAN SOVIET JAPAN SUDAN SOCIALIST REPUBLIC JORDAN SWEDEN CANADA KENYA SWITZERLAND CHILE KOREA, REPUBLIC OF SYRIAN ARAB REPUBLIC COLOMBIA KUWAIT THAILAND COSTA RICA LEBANON TUNISIA CUBA LIBERIA TURKEY CYPRUS LIBYAN ARAB JAMAHIRIYA UGANDA CZECHOSLOVAKIA LIECHTENSTEIN UKRAINIAN SOVIET SOCIALIST DEMOCRATIC KAMPUCHEA LUXEMBOURG REPUBLIC DEMOCRATIC PEOPLE'S MADAGASCAR UNION OF SOVIET SOCIALIST REPUBLIC OF KOREA MALAYSIA REPUBLICS DENMARK MALI UNITED ARAB EMIRATES DOMINICAN REPUBLIC MAURITIUS UNITED KINGDOM OF GREAT ECUADOR MEXICO BRITAIN AND NORTHERN EGYPT MONACO IRELAND EL SALVADOR MONGOLIA UNITED REPUBLIC OF ETHIOPIA MOROCCO CAMEROON FINLAND NETHERLANDS UNITED REPUBLIC OF FRANCE NEW ZEALAND TANZANIA GABON NICARAGUA UNITED STATES OF AMERICA GERMAN DEMOCRATIC REPUBLIC NIGER URUGUAY GERMANY, FEDERAL REPUBLIC OF NIGERIA VENEZUELA GHANA NORWAY VIET NAM GREECE PAKISTAN YUGOSLAVIA GUATEMALA PANAMA ZAIRE HAITI PARAGUAY ZAMBIA PERU The Agency's Statute was approved on 23 October 1956 by the Conference on the Statute of the IAEA held at United Nations Headquarters, New York; it entered into force on 29 July 1957.
  • 1 Paleobotanical Proxies for Early Eocene Climates and Ecosystems in Northern North 2 America from Mid to High Latitudes 3 4 Christopher K

    1 Paleobotanical Proxies for Early Eocene Climates and Ecosystems in Northern North 2 America from Mid to High Latitudes 3 4 Christopher K

    https://doi.org/10.5194/cp-2020-32 Preprint. Discussion started: 24 March 2020 c Author(s) 2020. CC BY 4.0 License. 1 Paleobotanical proxies for early Eocene climates and ecosystems in northern North 2 America from mid to high latitudes 3 4 Christopher K. West1, David R. Greenwood2, Tammo Reichgelt3, Alexander J. Lowe4, Janelle M. 5 Vachon2, and James F. Basinger1. 6 1 Dept. of Geological Sciences, University of Saskatchewan, 114 Science Place, Saskatoon, 7 Saskatchewan, S7N 5E2, Canada. 8 2 Dept. of Biology, Brandon University, 270-18th Street, Brandon, Manitoba R7A 6A9, Canada. 9 3 Department of Geosciences, University of Connecticut, Beach Hall, 354 Mansfield Rd #207, 10 Storrs, CT 06269, U.S.A. 11 4 Dept. of Biology, University of Washington, Seattle, WA 98195-1800, U.S.A. 12 13 Correspondence to: C.K West ([email protected]) 14 15 Abstract. Early Eocene climates were globally warm, with ice-free conditions at both poles. Early 16 Eocene polar landmasses supported extensive forest ecosystems of a primarily temperate biota, 17 but also with abundant thermophilic elements such as crocodilians, and mesothermic taxodioid 18 conifers and angiosperms. The globally warm early Eocene was punctuated by geologically brief 19 hyperthermals such as the Paleocene-Eocene Thermal Maximum (PETM), culminating in the 20 Early Eocene Climatic Optimum (EECO), during which the range of thermophilic plants such as 21 palms extended into the Arctic. Climate models have struggled to reproduce early Eocene Arctic 22 warm winters and high precipitation, with models invoking a variety of mechanisms, from 23 atmospheric CO2 levels that are unsupported by proxy evidence, to the role of an enhanced 24 hydrological cycle to reproduce winters that experienced no direct solar energy input yet remained 25 wet and above freezing.
  • Lord Hill Quarry Town: Stoneham, Ox Ford County Base Map: Cen Ter Lovell 7.5’ Quadran Gle Con Tour in Ter Val: 20 Feet

    Lord Hill Quarry Town: Stoneham, Ox Ford County Base Map: Cen Ter Lovell 7.5’ Quadran Gle Con Tour in Ter Val: 20 Feet

    Lord Hill Quarry Town: Stoneham, Ox ford County Base map: Cen ter Lovell 7.5’ quadran gle Con tour in ter val: 20 feet Type of de posit: Gran ite peg matite. strunzite, to paz, torbernite/metatorbernite, triphylite(?), triplite, uraninite, uranophane, vivian it e, zircon (var. cyrtolite). Col lect ing sta tus: Locat ed in the White Mountai n Nati onal Forest . No perm ission is needed to collec t miner als here. How- Com ments: Lord Hill is one of the fa vor ite col lect ing sites in ever, collec ting must be non com mercia l, done with hand tools, Maine, offer ing a va riety of miner als and White Mountai n scen - and not greatly disturb the mine area. ery. The best-known finds from this local ity in clude large crys- tals of white topaz, and smoky quartz crystal s encrust ed by many Min er als ob served: albit e, almandine (garnet) , autun- small phenakite crys tals. Most col lect ing ac tiv ity ap pears to ite/meta-autun ite, beraunite, bermanite, beryllonite, bertrandite, have oc curred in the larger of the two quarry pits, al though a ma- beryl, bi o tite, bis muth, bis muthi nite, bismutite, cas sit er ite, jor pocket contai n ing smoky quartz and fluorapatite crystal s was columbite, cryptomelane, damourite, elbaite (tour maline) , opened in the floor of the smaller pit in 1991. The pieces of topaz eosphorite, fluorapatite, fluo rite, gahnite, goethite com monly found here are disti n guished by their bluish-whi te (pseudomorphic after pyrit e), goyazite, heterosite, hureaulite, color (es pe cially when wet), sin gle cleav age di rec tion, and hydroxylapatite, hydroxyl-herderite, microcline, microlite, higher den sity than sim i lar-look ing peg ma tite min er als.
  • Geology and Tectonic Setting of the Kamloops Group, South

    Geology and Tectonic Setting of the Kamloops Group, South

    GEOLOGY AND TECTONIC SETTING OF THE KAMLOOPS GROUP, SOUTH- CENTRAL BRITISH COLUMBIA by THOMAS EDWARD EWING B.A., The Colorado College, 1975 M.S., New Mexico Institute of Mining and Technology, 1977 A THESIS SUBMITTED IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY in THE FACULTY OF GRADUATE STUDIES Department of Geological Sciences We accept this thesis as conforming to the required standard THE UNIVERSITY OF BRITISH COLUMBIA February 1981 © Thomas Edward Ewing, 1981 In presenting this thesis in partial fulfilment of the requirements for an advanced degree at the University of British Columbia, I agree that the Library shall make it freely available for reference and study. I further agree that permission for extensive copying of this thesis for scholarly purposes may be granted by the head of my department or by his or her representatives. It is understood that copying or publication of this thesis for financial gain shall not be allowed without my written permission. Department of r.pnlnpiVal Sri PTirp.S The University of British Columbia 2075 Wesbrook Place Vancouver, Canada V6T 1W5 Date February 17, 1981 ABSTRACT The Kamloops Group is a widespread assemblage of Eocene volcanic and sedimentary rocks in south-central British Columbia. Detailed mapping of the type area near Kamloops has resulted in its subdivision into two formations and thirteen formal and informal members. The Tranquille Formation, 0-450 metres thick, consists of lacustrine sediments which grade upward into pillowed flows, hyaloclastite breccia and aquagene tuff. The overlying Dewdrop Flats Formation, with nine members, consists of up to 1000 metres of basalt to andesite phreatic breccia, flow breccia and flat-lying flows.
  • Mineral Collecting Sites in North Carolina by W

    Mineral Collecting Sites in North Carolina by W

    .'.' .., Mineral Collecting Sites in North Carolina By W. F. Wilson and B. J. McKenzie RUTILE GUMMITE IN GARNET RUBY CORUNDUM GOLD TORBERNITE GARNET IN MICA ANATASE RUTILE AJTUNITE AND TORBERNITE THULITE AND PYRITE MONAZITE EMERALD CUPRITE SMOKY QUARTZ ZIRCON TORBERNITE ~/ UBRAR'l USE ONLV ,~O NOT REMOVE. fROM LIBRARY N. C. GEOLOGICAL SUHVEY Information Circular 24 Mineral Collecting Sites in North Carolina By W. F. Wilson and B. J. McKenzie Raleigh 1978 Second Printing 1980. Additional copies of this publication may be obtained from: North CarOlina Department of Natural Resources and Community Development Geological Survey Section P. O. Box 27687 ~ Raleigh. N. C. 27611 1823 --~- GEOLOGICAL SURVEY SECTION The Geological Survey Section shall, by law"...make such exami­ nation, survey, and mapping of the geology, mineralogy, and topo­ graphy of the state, including their industrial and economic utilization as it may consider necessary." In carrying out its duties under this law, the section promotes the wise conservation and use of mineral resources by industry, commerce, agriculture, and other governmental agencies for the general welfare of the citizens of North Carolina. The Section conducts a number of basic and applied research projects in environmental resource planning, mineral resource explora­ tion, mineral statistics, and systematic geologic mapping. Services constitute a major portion ofthe Sections's activities and include identi­ fying rock and mineral samples submitted by the citizens of the state and providing consulting services and specially prepared reports to other agencies that require geological information. The Geological Survey Section publishes results of research in a series of Bulletins, Economic Papers, Information Circulars, Educa­ tional Series, Geologic Maps, and Special Publications.
  • UNITED STATES DEPARTMENT of the INTERIOR GEOLOGICAL SURVEY PRELIMINARY DEPOSIT-TYPE MAP of NORTHWESTERN MEXICO by Kenneth R

    UNITED STATES DEPARTMENT of the INTERIOR GEOLOGICAL SURVEY PRELIMINARY DEPOSIT-TYPE MAP of NORTHWESTERN MEXICO by Kenneth R

    UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY PRELIMINARY DEPOSIT-TYPE MAP OF NORTHWESTERN MEXICO By Kenneth R. Leonard U.S. Geological Survey Open-File Report 89-158 This report is preliminary and has not been reviewed for conformity with Geological Survey editorial standards and stratigraphic nomenclature. Any use of trade, product, firm, or industry names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government. Menlo Park, CA 1989 Table of Contents Page Introduction..................................................................................................... i Explanation of Data Fields.......................................................................... i-vi Table 1 Size Categories for Deposits....................................................................... vii References.................................................................................................... viii-xx Site Descriptions........................................................................................... 1-330 Appendix I List of Deposits Sorted by Deposit Type.............................................. A-1 to A-22 Appendix n Site Name Index...................................................................................... B-1 to B-10 Plate 1 Distribution of Mineral Deposits in Northwestern Mexico Insets: Figure 1. Los Gavilanes Tungsten District Figure 2. El Antimonio District Figure 3. Magdalena District Figure 4. Cananea District Preliminary Deposit-Type Map of
  • Thermal Decomposition of Metatorbernite – a Controlled Rate Thermal Analysis Study

    Thermal Decomposition of Metatorbernite – a Controlled Rate Thermal Analysis Study

    Journal of Thermal Analysis and Calorimetry, Vol. 79 (2005) 721–725 THERMAL DECOMPOSITION OF METATORBERNITE – A CONTROLLED RATE THERMAL ANALYSIS STUDY R. L. Frost1*, J. Kristóf 2, M. L. Weier1, W. N. Martens1 and Erzsébet Horváth3 1Inorganic Materials Research Program, School of Physical and Chemical Sciences, Queensland University of Technology, GPO Box 2434, Brisbane Queensland 4001, Australia 2Department of Analytical Chemistry, University of Veszprém, 8201 Veszprém, P.O. Box 158, Hungary 3Department of Environmental Engineering and Chemical Technology, University of Veszprém, 8201 Veszprém, P.O. Box 158, Hungary The mineral metatorbernite, Cu[(UO2)2(PO4)]2·8H2O, has been studied using a combination of energy dispersive X-ray analysis, X-ray diffraction, dynamic and controlled rate thermal analysis techniques. X-ray diffraction shows that the starting material in the thermal decomposition is metatorbernite and the product of the thermal treatment is copper uranyl phosphate. Three steps are ob- served for the dehydration of metatorbernite. These occur at 138ºC with the loss of 1.5 moles of water, 155°C with the loss of 4.5 moles of water, 291°C with the loss of an additional 2 moles of water. These mass losses result in the formation of four phases namely meta(II)torbernite, meta(III)torbernite, meta(IV)torbernite and anhydrous hydrogen uranium copper pyrophosphate. The use of a combination of dynamic and controlled rate thermal analysis techniques enabled a definitive study of the thermal decompo- sition of metatorbernite. While the temperature ranges and the mass losses vary from author to author due to the different experi- mental conditions, the results of the CRTA analysis should be considered as standard data due to the quasi-equilibrium nature of the thermal decomposition process.
  • A Solid Solution Series Between Xenotime (Ytp04) and Chernovite (Ytaso0

    A Solid Solution Series Between Xenotime (Ytp04) and Chernovite (Ytaso0

    MINERALOGICAL MAGAZINE, JUNE I973, VOL. 39, 1'I'. I45--5I A solid solution series between xenotime (YtP04) and chernovite (YtAsO0 STEFAN GRAESER Department of Mineralogy, Natural History Museum, Basel, and Mineralogical Institute, University of Basel, Switzerland HANS SCHWANDER Mineralogical Institute, University of Basel HANS A. STALDER Natural History Museum, Bern, Switzerland "SUMMARY. The mineral chernovite, described as a new mineral from the Urals by Russian minera- logists in I967 (Goldin et aL, 1967), has been found at three different localities in mineral fissures in the Binnatal, Switzerland, and a little to the south, in Italy. The mineral occurs in greenish-yellow bipyramidal crystals up to about t mm. A detailed single-crystal study of several specimens showed that the lattice constants vary considerably on either side of those published for the original cherno- vite. The refractive indices, too, display some variation. Microprobe analyses of this material, and of xenotime specimens from the same region, revealed that there exists at least partial solution between chernovite and xenotime. The three chernovite samples have molar percentages of 63"z, 73'2, and 82.o % YtAsO4 (the Urals chernovite has about 95"2 %). These studies prove the existence of an fisomorphous series between xenotime and chernovite, at least in the As-rich portion. D U RI N G the summer of I966 the mineral collector Fritz Stettler of Berne found some mineral specimens in the southern part of Binnatal that were unknown to him; he sent them to the Natural History Museum in Berne for identification. One of us (H. A. St.) studied the minerals by Debye-Scherrer diagrams and optical methods.
  • MANAGEMENT PLAN November 2003

    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.
  • Fish 2002 Tec Doc Draft3

    Fish 2002 Tec Doc Draft3

    BRITISH COLUMBIA MINISTRY OF WATER, LAND AND AIR PROTECTION - 2002 Environmental Indicator: Fish in British Columbia Primary Indicator: Conservation status of Steelhead Trout stocks rated as healthy, of conservation concern, and of extreme conservation concern. Selection of the Indicator: The conservation status of Steelhead Trout stocks is a state or condition indicator. It provides a direct measure of the condition of British Columbia’s Steelhead stocks. Steelhead Trout (Oncorhynchus mykiss) are highly valued by recreational anglers and play a locally important role in First Nations ceremonial, social and food fisheries. Because Steelhead Trout use both freshwater and marine ecosystems at different periods in their life cycle, it is difficult to separate effects of freshwater and marine habitat quality and freshwater and marine harvest mortality. Recent delcines, however, in southern stocks have been attributed to environmental change, rather than over-fishing because many of these stocks are not significantly harvested by sport or commercial fisheries. With respect to conseration risk, if a stock is over fished, it is designated as being of ‘conservation concern’. The term ‘extreme conservation concern’ is applied to stock if there is a probablity that the stock could be extirpated. Data and Sources: Table 1. Conservation Ratings of Steelhead Stock in British Columbia, 2000 Steelhead Stock Extreme Conservation Conservation Healthy Total (Conservation Unit Name) Concern Concern Bella Coola–Rivers Inlet 1 32 33 Boundary Bay 4 4 Burrard
  • GEOLOGY of the EARLY JURASSIC TOODOGGONE FORMATION and GOLD-SILVER DEPOSITS in the TOODOGGONE RIVER MAP AREA, NORTHERN BRITISH COLUMBIA by Larry J

    GEOLOGY of the EARLY JURASSIC TOODOGGONE FORMATION and GOLD-SILVER DEPOSITS in the TOODOGGONE RIVER MAP AREA, NORTHERN BRITISH COLUMBIA by Larry J

    Province of British Columbia MINERAL RESOURCES DIVISION Ministry oi Energy, Mines and Geological Survey Branch Petroleum Resources Hon. Anne Edwards, Minister GEOLOGY OF THE EARLY JURASSIC TOODOGGONE FORMATION AND GOLD-SILVER DEPOSITS IN THE TOODOGGONE RIVER MAP AREA, NORTHERN BRITISH COLUMBIA By Larry J. Diakow, Andrejs Panteleyev, and Tom G. Schroeter BULLETIN 86 MINERAL RESOURCES DIVISION Geological Survey Branch Canadian Cataloguing in Publication Data Diakow, Larry, I. Geology of the early Jurassic Toodoggone Formation and gold-silvei depositsin the Toodoggone River map area, northern British Columbia VICTORIA BRITISH COLUMBIA (Bulletin, ISSN 0226-7497; 86) CANADA Issued by Geological Survey Branch. Includes bibliographical references: p January 1993 ISBNO-7718-9277-2 1. Geology - Stratigraphic - Jurassic. 2. Gold ores Geological researchfor this -Geology - British Columbia - Toodoggone River Region. 3. Silver ores - British Columbia - Toodoggone River publication was completed during Region. 4. Geology - British Columbia - Toodoggone the period 1981 to 1984. River Region. 5. Toodoggone Formation (B.C.) I. Fanteleyev, Andrejs, 1942- 11. Schroeter, T. G. In. British Columbia. Geological Survey Branch. IV. British Columbia. V. Title. VI. Series: Bulletin (British Columbia. Minisrry of Energy, Mines and Petroleum Resources); 86. TN414C32B731992 551.7'66'0971185 C92-092349.6 Lawyers gold-silver deposit looking northwesterly with Amethyst Gold Breccia (AGB) and Cliff Creek (CC) zones indicated. Cheni Gold Mines camp is in the lower centre and the mill site at the left of the photograph. Flat-lying ash-flow tuffs of the Saunders Member (Unit 6) form the dissected plateauand scarps in the foreground. Silica-clay-alunite capping Alberts Hump, similar to nearby precious metal bearing advanced argillic altered rocks of the A1 deposit (AI), are barely visible to the north of Toodoggone River and 5 kilometres beyond Metsantan Mountain.
  • A Review of Paleobotanical Studies of the Early Eocene Okanagan (Okanogan) Highlands Floras of British Columbia, Canada and Washington, USA

    A Review of Paleobotanical Studies of the Early Eocene Okanagan (Okanogan) Highlands Floras of British Columbia, Canada and Washington, USA

    Canadian Journal of Earth Sciences A review of paleobotanical studies of the Early Eocene Okanagan (Okanogan) Highlands floras of British Columbia, Canada and Washington, USA. Journal: Canadian Journal of Earth Sciences Manuscript ID cjes-2015-0177.R1 Manuscript Type: Review Date Submitted by the Author: 02-Feb-2016 Complete List of Authors: Greenwood, David R.; Brandon University, Dept. of Biology Pigg, KathleenDraft B.; School of Life Sciences, Basinger, James F.; Dept of Geological Sciences DeVore, Melanie L.; Dept of Biological and Environmental Science, Keyword: Eocene, paleobotany, Okanagan Highlands, history, palynology https://mc06.manuscriptcentral.com/cjes-pubs Page 1 of 70 Canadian Journal of Earth Sciences 1 A review of paleobotanical studies of the Early Eocene Okanagan (Okanogan) 2 Highlands floras of British Columbia, Canada and Washington, USA. 3 4 David R. Greenwood, Kathleen B. Pigg, James F. Basinger, and Melanie L. DeVore 5 6 7 8 9 10 11 Draft 12 David R. Greenwood , Department of Biology, Brandon University, J.R. Brodie Science 13 Centre, 270-18th Street, Brandon, MB R7A 6A9, Canada; 14 Kathleen B. Pigg , School of Life Sciences, Arizona State University, PO Box 874501, 15 Tempe, AZ 85287-4501, USA [email protected]; 16 James F. Basinger , Department of Geological Sciences, University of Saskatchewan, 17 Saskatoon, SK S7N 5E2, Canada; 18 Melanie L. DeVore , Department of Biological & Environmental Sciences, Georgia 19 College & State University, 135 Herty Hall, Milledgeville, GA 31061 USA 20 21 22 23 Corresponding author: David R. Greenwood (email: [email protected]) 1 https://mc06.manuscriptcentral.com/cjes-pubs Canadian Journal of Earth Sciences Page 2 of 70 24 A review of paleobotanical studies of the Early Eocene Okanagan (Okanogan) 25 Highlands floras of British Columbia, Canada and Washington, USA.