Gazetteer of Yukon
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Blondes Et Al., 2007.Pdf
Dating young basalt eruptions by (U-Th)/He on xenolithic zircons Madalyn S. Blondes* Department of Geology and Geophysics, Yale University, 210 Whitney Avenue, Peter W. Reiners† New Haven, Connecticut 06511, USA Benjamin R. Edwards* Department of Geology, Dickinson College, James Center, Carlisle, Pennsylvania 17013, USA Adrian Biscontini* ABSTRACT young and/or low-K samples often have large Accurate ages for young (e.g., Pleistocene) volcanic eruptions are important for geo morphic, errors due to the small proportion of radiogenic tectonic, climatic, and hazard studies. Existing techniques can be time-consuming and expen- Ar to total Ar (McDougall and Harrison, 1999). sive when many ages are needed, and in the case of K/Ar and 40Ar/ 39Ar dating, extraneous Ar In contrast, ZHe can be performed relatively often can limit precision, especially for continental basalts erupted through old lithosphere. rapidly on replicate single grains, requires no We present a new technique for dating young basaltic eruptions by (U-Th)/He dating of zir- irradiation, and the greater diffusivity and lower cons (ZHe) from crustal xenoliths. Single-crystal ZHe dates generally have lower precision atmospheric abundance of He may lead to a than typical 40Ar/ 39Ar dates, but can be determined relatively easily on multiple replicate grain lower inherited daughter abundance. Because aliquots. We dated zircons from xenoliths from four volcanic centers in western North Amer- inherited He is likely to be less of a problem ica: Little Bear Mountain, British Columbia (157 ± 3.5 [2.2%] ka weighted 95% confi dence than inherited Ar, ZHe ages should be younger interval [CI], mean square of weighted deviates [MSWD] = 1.7) and Prindle Volcano, Alaska than Ar ages in these samples. -
Gazetteer of Yukon
Gazetteer of Yukon Updated: May 1, 2021 Yukon Geographical Names Program Tourism and Culture Yukon Geographical Place Names Program The Yukon Geographical Place Names Program manages naming and renaming of Yukon places and geographical features. This includes lakes, rivers, creeks and mountains. Anyone can submit place names that reflect our diverse cultures, history and landscape. Yukon Geographical Place Names Board The Yukon Geographical Place Names Board (YGPNB) approves the applications and recommends decisions to the Minister of Tourism and Culture. The YGPNB meets at least twice a year to decide upon proposed names. The Board has six members appointed by the Minister of Tourism and Culture, three of whom are nominated by the Council of Yukon First Nations. Yukon Geographical Place Names Database The Heritage Resources Unit maintains and updates the Yukon Geographical Place Names Database of over 6,000 records. The Unit administers the program for naming and changing the names of Yukon place names and geographical features such as lakes, rivers, creek and mountains, approved by the Minister of Tourism and Culture, based on recommendations of the YGPNB. Guiding Principles The YGPNB bases its decisions on whether to recommend or rescind a particular place name to the Minister of Tourism and Culture on a number of principles and procedures first established by the Geographic Names Board of Canada. First priority shall be given to names with When proposing names for previously long-standing local usage by the general unnamed features—those for which no public, particularly indigenous names in local names exist—preference shall be the local First Nation language. -
Distribution, Nature, and Origin of Neogene–Quaternary Magmatism in the Northern Cordilleran Volcanic Province, Canada
Distribution, nature, and origin of Neogene–Quaternary magmatism in the northern Cordilleran volcanic province, Canada Benjamin R. Edwards* Igneous Petrology Laboratory, Department of Earth and Ocean Sciences, James K. Russell } University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada ABSTRACT Cordillera, driven by changes in relative these diverse volcanic rocks in space and time. plate motion between the Pacific and North We then use the compiled petrological and geo- The northern Cordilleran volcanic province American plates ca. 15–10 Ma. chemical data to address the origins of this alka- encompasses a broad area of Neogene to Qua- line magmatism and the structure of the litho- ternary volcanism in northwestern British Keywords: alkaline basalt, Canada, Cordil- sphere beneath the northern Cordilleran volcanic Columbia, the Yukon Territory, and adjacent leran, magmatism, Quaternary, volcanism. province. Specifically, we determine the source eastern Alaska. Volcanic rocks of the north- region characteristics of northern Cordilleran ern Cordilleran volcanic province range in INTRODUCTION volcanic province magmas using trace element age from 20 Ma to ca. 200 yr B.P. and are and isotopic data, and we produce a petrological dominantly alkali olivine basalt and hawai- Neogene to Quaternary magmatism in the image of the lithosphere using phase equilibria ite. A variety of more strongly alkaline rock Cordillera of North America is closely related to calculations for lavas and mantle peridotite types not commonly found in the North the current tectonic configuration between the xenoliths. Results of this analysis provide a basis American Cordillera are locally abundant in North American, Pacific, and Juan de Fuca plates on which to amplify the tectonic model we have the northern Cordilleran volcanic province. -
Glaciovolcanism on Earth and Mars: Products, Processes and Palaeoenvironmental Significance John L
Cambridge University Press 978-1-107-03739-7 - Glaciovolcanism on Earth and Mars: Products, Processes and Palaeoenvironmental Significance John L. Smellie and Benjamin R. Edwards Index More information Index ablation zone, 321 Cenozoic, 8 accommodation space, 235 Coulman Island, 25 Africa, 15, 40, 56, 125 Crary Mountains, 24, 247 Mt Elgon, 56 Daniell Peninsula, 26 Mt Kenya, 56 Debussy Heights, 20 Mt Kilimanjaro, 15, 56 Dobson Dome, 332 Garanga Tal valley, 56 Dry Valleys, 298 lahar deposits, 56 Ellsworth Land, 15, 17, 21–22 Main Rhomb porphyries, 56 Erebus volcanic province, 25 Penck Rhomb porphyries, 56 Hedin Nunatak, 24 Sud Ost Tal, 56 Hobbs Coast, 24, 336 Mt Meru, 56 Icefall Nunatak, 23 Mt Nyiragongo, 1 Jones Mountains, 21 agglutinate, 19, 181, 183, 191, 213, 270 Larsen Ice Shelf, 19 Aleutian volcanic arc, see North America McMurdo Volcanic Group, 25 Alexander Island, 17, 20–21 Minna Bluff, 25, 247 alignment bedding, 228 Mt Berlin, 22 alkali olivine basalt, 38, 40, 42, 45, 47, 141 Mt Casertz, 23 alkaline basalt, 44, 53, 105, 147, 221, 233 Mt Erebus, 2 alpine-type setting, 242 Mt Haddington, 19, 165, 166, 331, 333 Amazon River, 70, 81, 359 Mt Kauffman, 22 amoeboid clasts, 210 Mt Manthe, 21 amoeboid lava pillow, 206 Mt Melbourne, 25 amoeboid obsidian masses, 294 Mt Moses, 21 analcite, 154 Mt Petras, 23 ancient ice, 299, 300, 330 Mt Pinafore, 20 andesite, 13, 17, 31, 32, 34, 36, 37, 49, 51, 177, 188, Mt Pond ice cap, 20 195, 196, 250, 261, 262, 269, 395 Mt Rees, 24, 334 annealing, 288 Mt Sidley, 24 Antarctic Ice Sheet, 16, 59, 298, 329, -
Yukon Gazetteer May No Be Found on Referenced 1: 50,000 Map
YG Photo Tombstone Range February 2012 Geographical Names Program Heritage Resources Unit Cultural Services Branch Yukon Geographical Place Names Database The Heritage Resources Unit maintains and updates the Yukon Geographical Place Names Database of over 5,000 records. The Unit administers the program for naming and changing the names of Yukon geographical features such as lakes, rivers, creek and mountains, approved by the Minister of Tourism and Culture, based on recommendations of the Yukon Geographical Place Names Board. Mandate The mandate of the Heritage Resources Unit is to ensure that Yukon’s heritage resources are properly planned, researched, managed, protected, developed and interpreted in a manner consistent with the principles of responsible heritage resource management, the Historic Resources Act and Land Claims Heritage Agreements. Principles of Nomenclature The principles of nomenclature which guide the decisions of the Yukon Geographical Place Names Board (YGPNB) on geographical names are summarized as follows: 1. First priority shall be given to names with 5. When proposing names for previously long -standing local usage by the general unnamed features those for which no local public, particularly indigenous names in the names exist, preference shall be given to names local First Nation language. from native languages, names that describe the feature, name associated with historical events, 2. The Board has no jurisdiction over the names and names of people who have made an of municipalities, parks, territorial divisions or important contribution to the area where the other legal bodies that have been created by, or place name is proposed. result from legislation. 6. Geographical names shall be recognizable 3. -
Ical Survey of Canada Ique Du Canada Notice to Librarians and Indexers
ICAL SURVEY OF CANADA IQUE DU CANADA NOTICE TO LIBRARIANS AND INDEXERS The Geological Survey's Current Research series contains many reports comparable in scope and subject matter to those appearing in scientific journals and other serials. Most contributions to Current Research include an abstract and bibliographic citation. It is hoped that these will assist you in cataloguing and indexing these reports and that this will result in a still wider dissemination of the results of the Geological Survey's research activities. AVIS AUX BIBLIOTH~CAIRESET PREPARATEURS D'INDEX La skrie Recherches en cours de la Commission gtologique contient plusieurs rapports dont la portke et la nature sont comparables 2 ceux qui paraissent dans les revues scientifiques et autres pkriodiques. La plupart des articles publiks dans Recherches en cours sont accompagnks d'un rdsumt et d'une bibliographie, ce qui vous permettra, on l'espbre, de cataloguer et d'indexer ces rapports, d'oa une meilleure diffusion des rdsultats de recherche de la Commission gkologique. GEOLOGICAL SURVEY OF CANADA COMMISSION GEOLOGIQUE DU CANADA CURRENT RESEARCH 1995-A CORDILLERA AND PACIFIC MARGIN RECHERCHES EN COURS 1995-A CORDILLERE ET MARGE DU PACIFIQUE O~inisterof Energy, Mines and Resources Canada 1995 Available in Canada through authorized bookstore agents and other bookstoresor by mail from Canada Communication Group - Publishing Ottawa, Canada KIA 0S9 and from Geological Survey of Canada offices: 601 Booth Street Ottawa, Canada KIA 0E8 3303-33rd Street N.W., Calgary, Alberta T2L 2A7 100 West Pender Street Vancouver, B.C. V6B 1R8 A deposit copy of this publication is also available for reference in public libraries across Canada Cat. -
Cordillera and Pacific Margin Cordillere Et Marge Du
GEOLOGICAL SURVEY OF CANADA COMMISSION GEOLOGIQUE DU CANADA CURRENT RESEARCH 1994-A CORDILLERA AND PACIFIC MARGIN RECHERCHES EN COURS 1994-A CORDILLERE ET MARGE DU PACIFIQUE Natural Resources Ressources naturelles Canada Canada NOTICE TO LIBRARIANS AND INDEXERS The Geological Survey's Current Research series contains many reports comparable in scope and subject matter to those appearing in scientific journals and other serials. Most contributions to Current Research include an abstract and bibliographic citation. It is hoped that these will assist you in cataloguing and indexing these reports and that this will result in a still wider dissemination of the results of the Geological Survey's research activities. La sCrie Recherches en cours de la Commission gtologique contient plusieurs rapports dont la portte et la nature sont comparables A ceux qui paraissent dans les revues scientifiques et autres ptriodiques. La plupart des articles publiks dans Recherches en cours sont accompagnts d'un r6sumC et d'une bibliographic, ce qui vous permettra, on I'esp?re, de cataloguer et d'indexer ces rapports, d'oc une meilleure diffusion des rksultats de recherche de la Commission gtologique. GEOLOGICAL SURVEY OF CANADA COMMISSION GEOLOGIQUE DU CANADA CURRENT RESEARCH 1994-A CORDILLERA AND PACIFIC MARGIN RECHERCHES EN COURS 1994-A CORDILLERE ET MARGE DU PACIFIQUE O~inisterof Energy, Mines and Resources Canada 1994 Available in Canada through authorized bookstore agents and other bookstorcs or by mail from Canada Conlnlunication Group - Publishing Ottawa, Canada KIA OS9 and from Geological Survey of Canada offices: 601 Booth Street Ottawa, Canada K I A OE8 3303-33rd Strect N.W., Calgary, Alberta T2L 2A7 l00 West Pender Strect Vancouver, B.C.