Littérature scientifique sur le sujet « Hopedale »

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Articles de revues sur le sujet "Hopedale"

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Bingham-Koslowski, N., M. A. Miller, T. McCartney et J. S. Carey. « Revised biostratigraphic and thermal alteration interpretations for the Paleozoic of the Hopedale Basin, offshore Labrador, Canada ». Bulletin of Canadian Petroleum Geology 67, no 3 (1 septembre 2019) : 185–214. http://dx.doi.org/10.35767/gscpgbull.67.3.185.

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Abstract Paleozoic rocks occur in seven wells in the Hopedale Basin, offshore Labrador (Hopedale E-33, South Hopedale L-39, Tyrk P-100, Gudrid H-55, Roberval K-92, Indian Harbour M-52, and Freydis B-87), where they represent erosional remnants primarily associated with Cretaceous syn-rift half grabens. Previous palynological studies have reported a range of ages for the Paleozoic in these wells, including Ordovician, Devonian, Carboniferous, and undifferentiated Paleozoic. Palynological analyses in the present study confirm that recovery is limited, primarily due to the predominance of lithologies that hinder palynomorph preservation, specifically dolostones. Palynomorphs (predominantly acritarchs and chitinozoans) have been analyzed from new and archived samples from the seven wells and have, for the first time, produced consistent age determinations for the Paleozoic strata in all wells: palynomorph assemblages considered in place indicate a Middle to Late Ordovician age. Thermal maturity was determined from Ordovician acritarchs and leiospheres observed in the Gudrid H-55, Roberval K-92, Indian Harbour M-52, and Freydis B-87 wells, with thermal alteration indices (TAI) ranging from approximately 5+ to 6+ (dry gas). Carboniferous miospores are present from Paleozoic strata in the southern Hopedale Basin wells, where their TAI values range from 3+ to 4. These miospores are interpreted as contaminants introduced into the samples via cavings or as drilling mud contamination. The data presented here provides new biostratigraphic constraints for the Paleozoic of the Hopedale Basin (Middle to Late Ordovician), facilitates the correlation of the Paleozoic intervals in these wells, and enables the consideration of Labrador margin Lower Paleozoic strata in regional studies as well as in paleogeographic and paleoenvironmental reconstructions.
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Finn, Gregory C. « Rb–Sr geochronology of the Archaean Maggo gneiss from the Hopedale block, Nain Province, Labrador ». Canadian Journal of Earth Sciences 26, no 12 (1 décembre 1989) : 2512–22. http://dx.doi.org/10.1139/e89-214.

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The Maggo gneiss, a typical grey gneiss from the Hopedale block of coastal Labrador (southern Nain Province), preserves structures of two major Archaean tectonothermal events, the Hopedalian and the younger Fiordian. Rb–Sr whole-rock analyses of four suites representing the Hopedalian event (3140 ± 95 Ma (1σ), 3125 ± 43 Ma, 3028 ± 199 Ma, and 3025 ± 163 Ma) fall within the early middle Archaean and represent a period of cratonization of the Hopedale block.Two suites with a younger Fiordian structural fabric (2899 ± 116 Ma and 2804 ± 100 Ma) fall within the late middle Archaean and are interpreted as dating a period of reworking that locally reset the Rb–Sr isotopic systematics of the Maggo gneiss. Fiordian ages were also determined from four suites (2927 ± 50 Ma, 2884 ± 86 Ma, 2854 ± 83 Ma, and 2764 ± 89 Ma) that do not display the Fiordian structural fabric, indicating that chemical and mechanical components of the Fiordian event did not occur simultaneously. Age determinations of the Fiordian do not date specific geologic events but seemingly reflect varying degrees of protracted isotopic homogenization during chemical and mineralogical reequilibration.One suite of analyses yields an age of 3305 ± 75 Ma and is interpreted as dating a pre-Hopedalian event. This older age supports field evidence as to the existence of old crust in the Hopedale block, typical also of rocks of the North Atlantic Craton.
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Wasteneys, Hardolph A., Richard J. Wardle et Thomas E. Krogh. « Extrapolation of tectonic boundaries across the Labrador shelf : U–Pb geochronology of well samples ». Canadian Journal of Earth Sciences 33, no 9 (1 septembre 1996) : 1308–24. http://dx.doi.org/10.1139/e96-099.

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Near Saglek Fiord, a northerly trending boundary between the early Archean Saglek block and the middle Archean Hopedale block extends between drill sites which, respectively, sampled Uivak amphibolite gneiss with U–Pb zircon intercept ages of 3742 ± 12 and 2752 ± 42 Ma, and migmatitic Lister gneiss with concordant ages of [Formula: see text] for restite and [Formula: see text], for leucosome. Titanite ages of ca. 2508 Ma are common to both rocks. A nearby metapsammitic gneiss has detrital zircon and monazite ages of 2681 ± 5, 2700 ± 4, ca. 2730, and 2750 ± 2 Ma representing high-grade metamorphism related to the Hopedale–Saglek collision and metamorphic monazite of ca. 2560 Ma age representing metamorphism of the sediment during reactivation of the Saglek–Hopedale suture. Two hundred kilometres southeast, a gneissic granite records a protolith age of 3170 Ma and Late Proterozoic Pb loss. Near the Nain–Makkovik boundary, 1269 ± 4 Ma zircons indicate a significant extension of the Nain Platonic Suite. South of the Makkovik boundary, a foliated granite yielded an upper intercept age defining intrusion at 1895 ± 8 Ma and concordant 1872 ± 5 Ma titanite ages that date subsequent metamorphism. Discordant U–Pb ages from an alkali-feldspar granite also constrain crystallization to ca. 1890 Ma and together with the gneiss represent the previously defined Iggiuk event in the Kaipokok domain. Wells near the southerly end of the transect record 1801 ± 5, 1813 ± 3, and 1806 ± 8 Ma ages, respectively, that are typical of the synorogenic granitoid suite representing the Cape Harrison domain of southern Makkovik Province.
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Fishman, Robert, et Edward K. Spann. « Hopedale : From Commune to Company Town, 1840-1920. » American Historical Review 99, no 3 (juin 1994) : 976. http://dx.doi.org/10.2307/2167925.

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Hall, Christopher J., Walter J. Henry et Craig R. Hyder. « Hopedale Branch : A Vessel of Opportunity Success Story ». International Oil Spill Conference Proceedings 2011, no 1 (mars 2011) : abs407. http://dx.doi.org/10.7901/2169-3358-2011-1-407.

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Greenwood, Richard E., Edward K. Spann et Laurence F. Gross. « Hopedale : From Commune to Company Town, 1840-1920 ». New England Quarterly 67, no 1 (mars 1994) : 170. http://dx.doi.org/10.2307/366473.

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Nøhr-Hansen, Henrik, Graham L. Williams et Robert A. Fensome. « Biostratigraphic correlation of the western and eastern margins of the Labrador–Baffin Seaway and implications for the regional geology ». GEUS Bulletin 37 (28 décembre 2016) : 1–74. http://dx.doi.org/10.34194/geusb.v37.4356.

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New analyses of the palynological assemblages in 13 offshore wells on the Canadian margin and six on the West Greenland Margin, in conjunction with onshore data, have led to a new biostratigraphic framework for the Cretaceous–Cenozoic strata of the Labrador Sea – Davis Strait – Baffin Bay (Labrador–Baffin Seaway) region and the first broad biostratigraphic correlation of the Canadian and Greenland margins. This framework is based on 167 last occurrences and 18 local/regional peak/common-occurrence events for dinocysts, miospores, fungal spores and Azolla. Detailed biostratigraphic evidence has confirmed the following hiatuses: pre-Aptian in the Hopedale Basin; pre-Albian in the Saglek Basin; Albian–Turonian in some wells of the Hopedale Basin; Turonian–Santonian/Campanian in some areas; pre-Campanian and late Campanian – Thanetian on the Greenland Margin; late Maastrichtian and Danian in some wells of the Hopedale Basin and in the Saglek Basin; Selandian in part of the Hopedale Basin, in all the Saglek Basin wells and in two wells on the West Greenland Margin; late Ypresian and/or Lutetian on both sides; Oligocene to middle Miocene of considerable variability on both margins, with all of the Oligocene and the lower Miocene missing in all the West Greenland Margin wells; and middle to late Miocene on the western side. On the Canadian margin, the hiatuses can be partially matched with the five previously recognised regional unconformities; on the Greenland margin, however, the relationship to the five unconformities is more tenuous. Palynomorph assemblages show that most Aptian to Albian sediments were deposited in generally non-marine to marginal marine settings, interrupted by a short-lived shallow marine episode in the Aptian. A marine transgression started in the Cenomanian–Turonian and led to the most open-marine, oceanic conditions in the Campanian–Lutetian; shallowing probably started in the late Lutetian and continued into the Rupelian, when inner neritic and marginal marine palaeoenvironments predominated. Throughout the rest of the Cenozoic, inner neritic palaeoenvironments alternated with marginal marine conditions on the margins of the Labrador–Baffin Seaway. These observations broadly reflect the tectonic evolution of the seaway, with rift conditions prevailing from Aptian to Danian times, followed by drift through much of the Paleocene and Eocene, and post-drift from Oligocene to the present. Dinocysts indicate that climatic conditions in the Labrador–Baffin Seaway region were relatively temperate in the Cretaceous, but varied dramatically through the Cenozoic. The Danian was a time of increasingly warmer climate, a thermal maximum being reached around the Paleocene–Eocene boundary reflecting the global thermal event at this time. Warm to hot conditions prevailed throughout the Ypresian, but the climate began to cool in the Lutetian, a trend that accelerated through the Priabonian and Rupelian. Throughout the Neogene, temperatures generally declined, culminating in the Quaternary.
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Scott, David J. « U–Pb geochronology of the Nain craton on the eastern margin of the Torngat Orogen, Labrador ». Canadian Journal of Earth Sciences 32, no 11 (1 novembre 1995) : 1859–69. http://dx.doi.org/10.1139/e95-143.

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New U–Pb geochronological results provide insight into the geological evolution of the northernmost Nain craton. A tonalitic orthogneiss, retrogressed from granulite to amphibolite facies, is interpreted to have crystallized at 2832 ± 3 Ma; zircon overgrowths, dated at 2769 ± 5 Ma, are interpreted as metamorphic in origin, whereas metamorphic monazite crystallized at 2692 ± 2 Ma. The crystallization age of this sample suggests it may be correlative with similar rocks of the Kanairiktok Plutonic Suite of the Hopedale block, whereas the age of the zircon overgrowths is synchronous with metamorphism in the Saglek block and may indicate a link at this time. A foliated tonalité crystallized at 2802 ± 2 Ma; titanite in this sample records deformation at 1745 ± 4 Ma; the emplacement age suggests a link with Hopedale block, whereas the titanite growth is clearly related to Torngat orogeny. Two foliated granites crystallized at 2587 ± 3 and 2564 ± 2 Ma, respectively, synchronous with late magmatic events recognized in the southern Nain craton. An Avayalik mafic dyke was emplaced at [Formula: see text] Ma, and subsequently metamorphosed at [Formula: see text] Ma. An intraboudin granitic pegmatite crystallized at 1780 ± 2 Ma, and titanite in a diorite formed at 1735 ± 3 Ma, recording the effects of deformation in the Komaktorvik shear zone during Torngat orogeny.
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Connelly, J. N., et B. Ryan. « Late Archean evolution of the Nain Province, Nain, Labrador : imprint of a collision ». Canadian Journal of Earth Sciences 33, no 9 (1 septembre 1996) : 1325–42. http://dx.doi.org/10.1139/e96-100.

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Archean gneisses of the Nain Province in the Nain area, Labrador, comprise narrow septa between intrusions of the Mesoproterozoic Nain Plutonic Suite. This region occupies a critical position between the northern (Saglek) and southern (Hopedale) blocks of the Nain Province, which experienced distinct thermotectonic histories until the late Archean. Field and geochronological evidence are indicative of a strong late Archean thermotectonic overprint that is absent from most of the remainder of the Nain Province. Archean gneisses were intruded by granites and mafic dykes at 2578 ± 3 and [Formula: see text], respectively, and subsequently subjected to amphibolite- to granulite-facies regional metamorphism and ductile shearing at ca. 2550 Ma; granite veins and dykes related to the Nain Plutonic Suite were emplaced at ca. 1310 Ma. The Archean events are interpreted to represent the juxtapositioning and final docking of Saglek and Hopedale blocks to form a single, stable cratonic mass during the late Archean. Corroborative evidence indicates that the collisional boundary zone could extend at least 200 km to the north and 150 km to the south of Nain. This late Archean junction may have subsequently been exploited by several Paleoproterozoic granitic intrusions and some members of the Mesoproterozoic Nain Plutonic Suite.
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Rollmann. « Literacy and Awakening : The Awakening of 1804/1805 in Hopedale, Labrador ». Journal of Moravian History 20, no 2 (2020) : 125. http://dx.doi.org/10.5325/jmorahist.20.2.0125.

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Thèses sur le sujet "Hopedale"

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Martin, Michelle Rae. « Seismic stratigraphy and tectono-structural framework of the Bjarni area, Hopedale Basin, Labrador Sea / ». 2007. http://collections.mun.ca/u?/theses,146367.

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Finn, Gregory Clement. « Geochemical and isotopic evolution of the Maggo Gneiss component from the Hopedale Block, Labrador : evidence for Late-Middle Archaean crustal reworking / ». 1988. http://collections.mun.ca/u?/theses,109660.

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Livres sur le sujet "Hopedale"

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Frank, Jeffrey. Trudy Hopedale. New York, NY : Simon & Schuster, 2008.

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Heywood, William S. (William Sweetzer), 1824-1905, dir. History of the Hopedale Community. Providence, Rhode Island : Blackstone Editions, 2010.

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Faulkner, Barbara Louise. Adin Ballou and the Hopedale Community : Dissertation. Ann Arbor : University Microfilms, 1986.

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Coutu, David R. Civil marriages of Hopedale, Massachusetts, 1886-1905. Woonsocket, R.I : American-French Genealogical Society, 2006.

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Spann, Edward K. Hopedale : From commune to company town, 1840-1920. Columbus : Ohio State University Press, 1992.

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Brice-Bennett, Carol. Hopedale : Three ages of a community in northern Labrador. St. John's, NL : Historic Sites Association of Newfoundland and Labrador, 2003.

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ill, Lindro, dir. To live a truer life : A story of the Hopedale Community. Providence, R.I : Blackstone Editions, 2003.

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Rollmann, Hans. Moravian beginnings in Labrador : Papers from a symposium held in Makkovik and Hopedale. St. John's, Nfld : Newfoundland and Labrador Studies, Faculty of Arts Publications, Memorial University, 2009.

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Memorial University of Newfoundland. Faculty of Arts, dir. Moravian beginnings in Labrador : Papers from a symposium held in Makkovik and Hopedale. St. John's, Nfld : Newfoundland and Labrador Studies, Faculty of Arts Publications, Memorial University, 2009.

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Ermanovics, I. F. Geology of Hopedale block, southern Nain Province, and the adjacent Proterozoic terranes, Labrador, Newfoundland. Ottawa : Geological Survey of Canada, 1993.

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Chapitres de livres sur le sujet "Hopedale"

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Fleming, Laura, Ruth Desantis, Barry Smit et Mark Andrachuk. « Adapting to Climate Change in Hopedale, Nunatsiavut ». Dans Settlement, Subsistence, and Change Among the Labrador Inuit, 209–29. University of Manitoba Press, 2012. http://dx.doi.org/10.1515/9780887554193-011.

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« Voyage on the “Holy Roller” : Hopedale to St Anthony 3 September – 23 October 1910 ». Dans Jessie Luther at the Grenfell Mission, 280–89. McGill-Queen's University Press, 2001. http://dx.doi.org/10.1515/9780773569157-023.

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Actes de conférences sur le sujet "Hopedale"

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Campbell, Heather. « SURFICIAL MAPPING IN THE HOPEDALE REGION OF LABRADOR –A DYNAMIC, ICE-MARGINAL PALEOENVIRONMENT ». Dans GSA 2020 Connects Online. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020am-357743.

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King, Tony, et Erin Gillis. « Labrador Gas – History and Opportunity ». Dans Offshore Technology Conference. OTC, 2023. http://dx.doi.org/10.4043/32655-ms.

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Abstract Exploration in the 1970s and early 1980s identified approximately 4.2 TCF of natural gas and 123 million barrels of natural gas liquids on the Labrador Shelf within the Hopedale and Saglek basins. At the time, development was deemed unfeasible due to insufficient reserves and the threat posed by icebergs. Subsequent work has shown the original iceberg risk analysis to be very conservative. An iceberg risk model was developed to update the previous analysis and additional data was collected through a series of field programs. This resulted in a large multibeam mosaic covering the Makkovik Bank and pipeline landfall at Cape Harrison, and the development of a large iceberg scour database. An alternate landfall has also been identified at Cartwright with lower iceberg risk than the originally selected site. In 2010, the Oil and Gas Corporation of Newfoundland and Labrador (OilCo) undertook a regional oil seep mapping and interpretation study covering all offshore Newfoundland and Labrador, to help identify areas of interest with active petroleum systems. Based on these results, from 2011 to 2020 Oilco acquired 2D and 3D long offset broadband seismic datasets targeting the Chidley Basin, in the slope and deepwater off Labrador. This data has been used to map and quantify potential hydrocarbon systems within the basin. In 2021, Beicip-Franlab conducted a resource assessment on behalf of OilCo, based on available geological and geophysical data from the Chidley Basin. As reported in "Offshore Newfoundland & Labrador Resource Assessment, Labrador South NL-CFB03", "results show the very likely occurrence of a working petroleum system in the Chidley Basin capable of efficiently generating and preserving liquid and gas hydrocarbons in the slope and deepwater basin". Hence, the probability of additional resources to increase the total reserves available to support a gas development is considered high. If exploration drilling confirms the presence of gas, then the total gas available for development will include the original 4.2 TCF and any new reserves. Hence, the two barriers originally identified to the development of Labrador gas (iceberg risk and gas reserves) may be resolved.
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Rapports d'organisations sur le sujet "Hopedale"

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Ermanovics, I. F. Geology, southern Hopedale Block, Labrador, Newfoundland. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1992. http://dx.doi.org/10.4095/183824.

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Ermanovics, I. F. Geology, central Hopedale Block, Labrador, Newfoundland. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1992. http://dx.doi.org/10.4095/183825.

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Ermanovics, I. F. Geology, northern Hopedale Block, Labrador, Newfoundland. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1992. http://dx.doi.org/10.4095/183826.

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Kay, W., et C. E. Keen. Structure, VI, Labrador sea, North Hopedale basin Crustal Transect. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/127187.

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Wielens, H., et G. Williams. Stratigraphic cross section South Hopedale-Tyrk, Hopedale Basin, in the Labrador Sea, on the east coast of Canada, from North to South. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2009. http://dx.doi.org/10.4095/247639.

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Avery, M. P. Vitrinite reflectance data for Chevron et al Hopedale E-33. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2008. http://dx.doi.org/10.4095/224748.

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Bell, J. S. Structure, II, Labrador sea, Seismic interpretation central Hopedale Basin Sw - Ne Dip sections, Nw - Se Strike section and south Hopedale Basin Sw - Ne Dip section. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/127183.

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McCurdy, M. W., R. C. Paulen, J M Rice et H. E. Campbell. Geochemical reanalysis of archived regional lake sediment samples from the Hopedale Block, Labrador. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/331177.

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Ermanovics, I. Geology of Hopedale Block, southern Nain Province, and the adjacent Proterozoic terranes, Labrador, Newfoundland. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1993. http://dx.doi.org/10.4095/183986.

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Williams, G. L. Palynological analysis of Eastcan et al. Snorri J-90, Hopedale Basin, Labrador Shelf, offshore eastern Canada. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2007. http://dx.doi.org/10.4095/224258.

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