Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Otto van Breemen"'
Publikováno v:
Canadian Journal of Earth Sciences. 52:1062-1092
The Paleoproterozoic Hottah terrane is the westernmost exposed bedrock of the Canadian Shield and a critical component for understanding the evolution of the Wopmay Orogen. Thirteen new high-precision U–Pb zircon crystallization ages are presented
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8abbe9cbf7ca4cc55d69d39f0b11bda2
https://doi.org/10.1139/cjes-2015-0026
https://doi.org/10.1139/cjes-2015-0026
Autor:
Peng Peng, Mimmi K.M. Nilsson, Wouter Bleeker, Ross N. Mitchell, David Evans, Otto van Breemen, Tony N. Lecheminant
Publikováno v:
American Journal of Science. 314:878-894
Laurentia, the core of Paleo- to Mesoproterozoic supercontinent Nuna, has remained largely intact since assembly 2.0 to 1.8 billion years ago [Ga]. For earlier times, previous paleomagnetic data on poorly dated Paleoproterozoic mafic intrusions yield
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fec5e83098654f78fdc9c0a7ea34cd28
https://doi.org/10.2475/04.2014.03
https://doi.org/10.2475/04.2014.03
Publikováno v:
Economic Geology. 107:963-989
The structure and stratigraphy of the Chapais-Chibougamau mining camp in the Archean Abitibi greenstone belt of the Superior Craton, Quebec, Canada, is reevaluated from new aeromagnetic data, geochronology, and field studies to provide a framework fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f5dcf3359f3576f228679319e002612
https://doi.org/10.2113/econgeo.107.5.963
https://doi.org/10.2113/econgeo.107.5.963
Publikováno v:
Canadian Journal of Earth Sciences. 49:435-454
The NE-trending Malley dyke swarm, dated herein at 2231 ± 2 Ma (U–Pb baddeleyite), extends from the central Slave craton to the vicinity of the Kilohigok basin, and may continue farther to the northeast as the geochemically similar Brichta dyke sw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13672f2ce2e0666271f2641b9707b398
https://doi.org/10.1139/e11-061
https://doi.org/10.1139/e11-061
Publikováno v:
Canadian Journal of Earth Sciences. 46:361-379
Lac de Gras diabase dykes trend north to NNE across the central Slave Province of the Canadian Shield. U–Pb baddeleyite ages of 2023 ± 2 and 2027 ± 4 Ma are interpreted as dyke emplacement ages. These ages are similar to that of the Booth River i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71707e66096350910bc66c289afdadb3
https://doi.org/10.1139/e09-026
https://doi.org/10.1139/e09-026
Publikováno v:
Economic Geology. 103:1151-1184
The Abitibi subprovince is widely regarded as a classic example of Neoarchean continental crust formed in an ensimatic setting. However, sialic crust as old as 2.93 Ga occurs in the adjacent Wawa subprovince, and the two subprovinces are thought to h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::081cc7a9d6635fe19a177586594eac01
https://doi.org/10.2113/gsecongeo.103.6.1151
https://doi.org/10.2113/gsecongeo.103.6.1151
Publikováno v:
Precambrian Research. 161:201-230
The results of mapping, geochronology, petrology, and geochemistry of rocks of the Snowbird Lake map sheet (NTS 65D), western Churchill Province, Canada provide new insight into the tectonometamorphic history of the southern Rae Province and signific
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3bd1ee3785e15e19b18e0be7e7262f9d
https://doi.org/10.1016/j.precamres.2007.07.007
https://doi.org/10.1016/j.precamres.2007.07.007
Publikováno v:
Precambrian Research. 159:33-59
New U–Pb geochronological and Sm–Nd isotopic data establish the timing of Neoarchean and Paleoproterozoic magmatic and metamorphic events in northeastern Saskatchewan, and give insight into the late Archean assembly of the central and southern He
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9cb8800f5d0492e7fbc05e928aabcebc
https://doi.org/10.1016/j.precamres.2007.04.014
https://doi.org/10.1016/j.precamres.2007.04.014
Autor:
Andrew Kerr, Otto van Breemen
Publikováno v:
Atlantic Geology. 43:148-162
The Rattling Brook deposit is a low-grade, disseminated to stockwork-style gold deposit hosted by Precambrian granodiorite and adjacent Cambrian sedimentary rocks. Alteration and gold mineralization also occur in foliated and metamorphosed mafic dyke
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f15cff3a8057b440764b7789c903c70d
https://doi.org/10.4138/5623
https://doi.org/10.4138/5623
Publikováno v:
Canadian Journal of Earth Sciences. 42:1865-1880
In the south-central Grenville Province, Quebec, Canada, anorthositemangeritecharnockitegranite (AMCG) magmatism took place during four distinct episodes between 1327 and 1008 Ma. AMCG rocks crosscut several gneiss complexes composed of ~1506 M
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::284af84875dba8e133be5f90ae2fe9d3
https://doi.org/10.1139/e05-050
https://doi.org/10.1139/e05-050