18 results
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2. Climate change and ecosystem response in the northern Columbia River basin — A paleoenvironmental perspective.
- Author
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Walker, Ian R. and Pellatt, Marlow G.
- Subjects
CLIMATE change ,HOLOCENE stratigraphic geology ,BIOTIC communities ,CLIMATOLOGY ,WATERSHEDS - Abstract
Copyright of Environmental Reviews is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2008
- Full Text
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3. Stratigraphic evidence for multiple Holocene advances of Lillooet Glacier, southern Coast Mountains, British Columbia.
- Author
-
Reyes, Alberto V. and Clague, John J.
- Subjects
GLACIERS ,MOUNTAINS ,MORAINES ,HOLOCENE stratigraphic geology ,ICE - Abstract
Copyright of Canadian Journal of Earth Sciences is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2004
- Full Text
- View/download PDF
4. Large Holocene landslides from Pylon Peak, southwestern British Columbia.
- Author
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Friele, Pierre A. and Clague, John J.
- Subjects
HOLOCENE stratigraphic geology ,LANDSLIDES ,ROCKSLIDES ,DEBRIS avalanches ,VOLCANIC ash, tuff, etc. - Abstract
Copyright of Canadian Journal of Earth Sciences is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2004
- Full Text
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5. Holocene sediments from a coastal lake on northern Devon Island, Nunavut, Canada.
- Author
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Courtney Mustaphi, Colin J., Gajewski, Konrad, and Lian, Olav
- Subjects
HOLOCENE stratigraphic geology ,MARINE sediments ,ONTOGENY ,FLOODS ,TEMPERATURE effect ,PERMAFROST - Abstract
Copyright of Canadian Journal of Earth Sciences is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2013
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6. Stratigraphic analysis of Late Wisconsin and Holocene glaciolacustrine deposits exposed along the Nottawasaga River, southern Ontario, Canada.
- Author
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Eyles, Carolyn H., Mulligan, Riley P.M., and Bajc, Andy F.
- Subjects
LAKE sediments ,HOLOCENE stratigraphic geology ,GROUNDWATER flow ,GLACIAL lakes - Abstract
Copyright of Canadian Journal of Earth Sciences is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
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7. Late Holocene glacial activity at Bromley Glacier, Cambria Icefield, northern British Columbia Coast Mountains, Canada.
- Author
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Hoffman, Kira M., Smith, Dan J., and Fisher, Timothy
- Subjects
HOLOCENE stratigraphic geology ,GLACIOLOGY ,DENDROCHRONOLOGY ,RADIOCARBON dating ,SEDIMENTATION & deposition ,GEOLOGICAL formations ,MOUNTAINS - Abstract
Copyright of Canadian Journal of Earth Sciences is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2013
- Full Text
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8. The chronostratigraphy of Holocene sediments from four Lake Superior sub-basins.
- Author
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Ayumi Hyodo and Longstaffe, Fred J.
- Subjects
CHRONOSTRATIGRAPHY ,HOLOCENE stratigraphic geology ,LAKE sediments ,BIOSTRATIGRAPHY ,GEOLOGICAL basins ,MINERALOGY ,RADIOCARBON dating ,STABLE isotopes - Abstract
Copyright of Canadian Journal of Earth Sciences is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2011
- Full Text
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9. Late Holocene glacial activity in Manatee Valley, southern Coast Mountains, British Columbia, Canada.
- Subjects
HOLOCENE stratigraphic geology ,MANATEES ,GLACIERS ,PLANT growth ,LICHENOLOGY ,STATISTICAL correlation - Abstract
Copyright of Canadian Journal of Earth Sciences is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2011
- Full Text
- View/download PDF
10. Holocene and Last Interglacial cloudiness in eastern Baffin Island, Arctic Canada.
- Author
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Fréchette, Bianca, de Vernal, Anne, and Richard, Pierre J. H.
- Subjects
HOLOCENE stratigraphic geology ,BIOTIC communities ,TUNDRAS ,UPPER air temperature ,PLANT diversity ,SEDIMENTS - Abstract
This study presents Last Interglacial and Holocene vegetation and climate changes at Fog Lake (67°11′N, 63°15′W) on eastern Baffin Island, Arctic Canada. The vegetation cover is reported as vegetation structural types (or biomes). July air temperature and sunshine during the growing season (June–July–August–September) were reconstructed from pollen assemblages using the modern analogue technique. The vegetation of the Last Interglacial period evolved from a prostrate dwarf-shrub tundra to a low- and high-shrub tundra vegetation. The succession of four Arctic biomes was distinguished from the Last Interglacial sediments, whereas only one Arctic biome was recorded in the Holocene sediments. From ca. 8300 cal. years BP to present, hemiprostrate dwarf-shrub tundra occupied the soils around Fog Lake. During the Last Interglacial, growing season sunshine was higher than during the Holocene and July air temperature was 4 to 5 °C warmer than present. A principal component analysis helped in assessing relationship between floristic gradients and climate. The major vegetation changes through the Last Interglacial and Holocene were driven by July air temperature variations, whereas the minor, or subtle, vegetation changes seem rather correlated to September sunshine. This study demonstrates that growing season sunshine conditions can be reconstructed from Arctic pollen assemblages, thus providing information on feedbacks associated with cloud cover and summer temperatures, and therefore growing season length. Cette étude présente les changements climatiques et de végétation survenus au cours du dernier interglaciaire et de l’Holocène au lac Fog (67°11′N, 63°15′O), sur la côte est de la Terre de Baffin, dans l’Arctique canadien. La couverture végétale est décrite sous forme de biomes, c.-à-d. de structures de végétation. La température de l’air en juillet et l’ensoleillement lors de la saison de croissance (juin, juillet, août, septembre) ont été reconstitués à partir d’assemblages polliniques selon la méthode des analogues modernes. La végétation de la dernière période interglaciaire a évolué d’une toundra arbustive naine, prostrée à une toundra arbustive basse et haute. Une succession de quatre biomes est visible dans les sédiments du dernier interglaciaire, alors qu’un seul biome est observé dans les sédiments de l’Holocène. Une toundra arbustive hémiprostrée colonize les sols des environs du lac Fog depuis environ 8300 années. Au cours du dernier interglaciaire, l’ensoleillement durant de la saison de croissance était plus élevé que lors de l’Holocène et la température de juillet était de 4 à 5 °C plus chaude qu’actuellement. Une analyse en composantes principales a permis d’évaluer la relation entre les gradients floristiques et le climat. Les changements majeurs de végétation lors du dernier interglaciaire et de l’Holocène découlent principalement des variations de la température de juillet, alors que les changements de végétation plus subtils sont plutôt liés à l’ensoleillement en septembre. Cette étude démontre que les conditions d’ensoleillement lors de la saison de croissance peuvent être déduites à partir des assemblages polliniques des sédiments de l’Arctique, fournissant ainsi de l’information pertinente sur les rétroactions associées au couvert nuageux et aux températures estivales et donc sur la durée de la saison de croissance. [ABSTRACT FROM AUTHOR]
- Published
- 2008
- Full Text
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11. Determining the post-glacial evolution of a northeast Pacific coastal fjord using a multiproxy geochemical approach.
- Author
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Ivanochko, Tara S., Calvert, Stephen E., Southon, John R., Enkin, Randolph J., Baker, Judith, Dallimore, Audrey, and Pedersen, Thomas F.
- Subjects
HOLOCENE stratigraphic geology ,ANALYTICAL geochemistry ,OCEAN circulation ,FJORD ecology ,OPALS ,SEDIMENTS ,ANOXIC zones - Abstract
A 40.32 m piston core recovered from Effingham Inlet, on the west coast of Vancouver Island, provides the basis for a high-resolution geochemical study of the last deglaciation and the Holocene. Glacial retreat, basin isolation, sea-level rise, and productivity variations are determined using proxies for sediment composition (K/Al, Fe/Al, Mg/Al), grain size (Ti/Al, Zr/Al), sedimentary redox conditions (Mo/Al, U/Al), and productivity (wt.% organic carbon, wt.% opal). As local ice retreated and marine waters inundated the basin, coarse-grained glacimarine sediments were replaced by finer grained, laminated, opal-rich sediments. During meltwater pulse-1a, the dominance of local crustal rise over eustatic sea-level rise resulted in the progressive restriction of ocean circulation in Effingham Inlet and the formation of a temporary freshwater lake. The transition into stable Holocene conditions was initiated at ~12 700 BP, which corresponds to the onset of the Younger Dryas, as identified by the Greenland Ice core Project (GRIP) ice core δ
18 O record and was completed by 10 700 BP, ~800 years after the GRIP ice core record stabilized. Holocene Mo/Al and U/Al ratios range between 12–35 (×104 ) and 1–3.4 (×104 ), respectively, indicating that although large-amplitude, high-frequency fluctuations occur, the sediments of Effingham Inlet inner basin have remained organic rich and oxygen depleted for the entire Holocene period. The combination of anoxic bottom waters and a Holocene sedimentation rate of 217 cm/ka have preserved a high-resolution record of environmental change in the northeast Pacific over the last 11 000 years. Une carotte de 40,32 m, prélevée au moyen d’un carottier à piston au passage Effingham, sur la Côte Ouest de Vancouver, fournit la base pour une étude géochimique très détaillée de la dernière déglaciation et de l’Holocène. Le retrait glaciaire, l’isolement du bassin, l’élévation du niveau de la mer et les variations de productivité sont déterminés en utilisant des substituts pour la composition des sédiments (K/Al, Fe/Al, Mg/Al), la granulométrie (Ti/Al, Zr/Al), les conditions d’oxydoréduction sédimentaires (Mo/Al, U/Al) et la productivité (% poids carbone organique, % poids opale). À mesure que la glace locale se retirait et que les eaux marines inondaient le bassin, des sédiments glaciomarins à grain grossier étaient remplacés par des sédiments laminés, à grain plus fin et riches en opale. Durant un épisode important de montée du niveau marin global (meltwater pulse 1A), la dominance de la montée locale de la croûte par rapport à la hausse eustatique du niveau de la mer a progressivement restreint la circulation de l’océan dans le passage Effingham et a conduit à la formation d’un lac temporaire d’eau douce. La transition vers les conditions stables à l’Holocène a débuté vers 12 700 BP, ce qui correspond au début du Dryas récent, tel qu’identifié par les enregistrements de δ18 O dans les carottes de glace du projet GRIP (« Greenland Ice Core Project ), et qui était terminé à 10 700 BP, soit environ 800 ans après la stabilization des enregistrements dans les carottes de glace du GRIP. À l’Holocène, les rapports Mo/Al et U/Al varient respectivement entre 12–35 (×104 ) et 1–3,4 (×104 ), indiquant que, malgré l’occurrence de fluctuations de grande amplitude et de fréquence élevée, les sédiments du bassin interne du passage Effingham sont demeurés riches en matières organiques et pauvres en oxygène pour toute la période de l’Holocène. La combinaison d’eaux de fond anoxiques et d’un taux de sédimentation de 217 cm/ka à l’Holocène a préservé l’enregistrement très détaillé du changement environnemental dans le Nord-Est du Pacifique au cours des derniers 11 000 ans. [ABSTRACT FROM AUTHOR]- Published
- 2008
- Full Text
- View/download PDF
12. Reorganization of the upper ocean circulation in the mid-Holocene in the northeastern Atlantic.
- Author
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Solignac, Sandrine, Grelaud, Michael, de Vernal, Anne, Giraudeau, Jacques, Moros, Matthias, McCave, I. Nicholas, and Hoogakker, Babette
- Subjects
OCEAN circulation ,MICROPALEONTOLOGY ,HOLOCENE stratigraphic geology ,DINOFLAGELLATE cysts ,COCCOLITHS ,MELTWATER - Abstract
A micropaleontological investigation was conducted on two sediment cores from the Reykjanes Ridge (RR; core LO09-14; 59°12.30′N, 31°05.94′W) and the Faroe–Shetland Channel (FSC; core HM03-133-25; 60°06.55′N, 06°04.18′W) to document hydrographical changes of the North Atlantic Current (NAC) during the Holocene. Dinocyst and coccolith assemblages were analyzed, and quantitative reconstructions of sea surface temperatures (SSTs) and sea surface salinities (SSSs) were conducted based on dinocyst assemblages. Both proxies suggest a major reorganization of surface circulation patterns in the northeastern North Atlantic between 7 and 5.4 ka BP. At both sites, SSSs before 6.5–7 ka BP were lower than during the mid-late Holocene, suggesting dispersal of meltwater through the NAC. Long term trends of SSTs, however, show higher than present summer SSTs on the RR from 9.3 to ~6 ka BP, and lower than present SSTs in the FSC until ca. 5.4 ka BP. The contrasted SST trends at the two sites suggest that decreasing summer insolation was not the only forcing behind hydrographical changes in the region. Decoupling of the NAC and the Slope Current (SC), which both influence the FSC, is proposed as a possible mechanism. We hypothesize that a strong NAC during the early to middle Holocene resulted in a SST increase on the RR and decrease in the FSC. Inversely, a weaker NAC after 5–6 ka BP, leading to decreased SSTs on the RR, would have enhanced the relative contribution of the warmer, saltier SC in the FSC, thus resulting in a regional SST and SSS increase. Une étude micropaléontologique a été effectuée sur deux carottes de sédiments prélevées de la ride de Reykjanes (RR – carotte LO09-14; 59°12,30’N, 31°05,94’O) et du chenal Faroe–Shetland (FSC – carotte HM03-133-25; 60°06,55’N, 06°04,18’O) afin de documenter les changements hydrographiques du courant de l’Atlantique Nord au cours de l’Holocène. Des assemblages de dinokystes et de coccolithes ont été analysés et des reconstructions quantitatives de température « SST »et de salinité « SSS »à la surface de la mer ont été effectuées basées sur les assemblages de dinokystes. Les deux indicateurs suggèrent une réorganisation majeure des patrons de circulation à la surface dans le nord-est de l’océan Atlantique Nord entre 7 et 5,4 milliers d’années avant le présent (ka BP). Aux deux sites, les SSS avant 6,5–7 ka BP étaient inférieures à celles durant l’Holocène moyen/tardif, suggérant une dispersion de l’eau de fonte par le courant de l’Atlantique Nord. Les tendances à long terme des SST montrent toutefois des SST estivales supérieures aux SST actuelles dans la carotte RR de 9,3 à ~6 ka BP et des SST inférieures aux SST actuelles dans la carotte FSC jusqu’à environ 5,4 ka BP. Les différentes tendances des SST aux deux sites suggèrent que l’ensoleillement décroissant en été ne soit pas le seul forçage responsable des changements hydrographiques dans la région. Le découplage du NAC et du courant de pente « SC , qui influent tous deux sur le FSC, est proposé en tant que mécanisme possible. Nous posons l’hypothèse qu’un fort courant de l’Atlantique Nord à l’Holocène précoce/moyen a conduit à une augmentation des SST à la ride de Reykjanes et à une diminution au chenal Faroe–Shetland. Inversement, un courant de l’Atlantique Nord plus faible, postérieur à 5–6 ka BP, conduisant à une SST réduite sur la RR, aurait rehaussé la contribution du courant de pente, plus chaud et plus salin, dans le chenal Faroe–Shetland, ce qui aurait augmenté la SST et la SSS régionales. [ABSTRACT FROM AUTHOR]
- Published
- 2008
- Full Text
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13. Low- and high-frequency climate variability in eastern Beringia during the past 25 000 years.
- Author
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Viau, A. E., Gajewski, K., Sawada, M. C., and Bunbury, J.
- Subjects
METEOROLOGICAL precipitation ,HOLOCENE stratigraphic geology ,TEMPERATURE ,ATMOSPHERIC circulation ,GLACIAL climates ,FOSSIL pollen - Abstract
We present new temperature and precipitation reconstructions for the past 25 000 cal. years BP from across eastern Beringia based on a network of pollen diagrams, an updated modern pollen calibration database, and an improved methodology using the modern analogue technique (MAT). Time series show July temperatures were around 4 °C lower during full glacial and January temperatures were about 2 °C lower than present. Annual temperatures rose beginning around 16 000 cal. years BP, reaching a maximum around 12 000 cal. year BP. The warming was more rapid in southern Beringia. Annual precipitation varied by 250 mm during the past 25 000 cal. years BP. Maps of reconstructed precipitation patterns show increasingly drier conditions since 12 000 cal. years BP. that vary regionally, suggesting Holocene atmospheric circulation changes at multiple time and space scales. Orbitally forced seasonality changes during the late glacial and early Holocene resulted in reversed seasonal temperature reconstructions due to methodological constraints using the MAT and (or) non-analogue conditions. The magnitude of millennial-scale climate variability in this region was greater during the last glacial and late glacial periods than during the past 8000 years. Nous présentons de nouvelles reconstructions de température et de précipitations pour les dernières 25 000 années calendaires avant le présent (années cal. BP) à travers l’est de la Béringie; ces reconstructions sont basées sur un ensemble de diagrammes de pollens, une base de données d’étalonnage des pollens, moderne et mise à jour, et une méthodologie améliorée qui utilise une technique analogique moderne. Les séries chronologiques montrent qu’au point fort de la glaciation, les températures de juillet et de janvier étaient respectivement d’environ 4 °C et 2 °C plus basses que durant le présent. Les températures annuelles ont commencé à monter vers 16 000 années cal. BP, atteignant un maximum vers 12 000 années cal. BP. Le réchauffement a été plus rapide dans le sud de la Béringie. La précipitation annuelle variait de 250 mm au cours des 25 000 dernières années cal. BP. Des cartes de reconstruction des patrons de précipitation montrent des conditions de plus en plus sèches depuis 12 000 années cal. BP et qui varient selon les régions, suggérant qu’à l’Holocène, il se soit produit des changements de circulation atmosphérique à diverses échelles de temps et d’espace. Vers la fin de la période glaciaire et durant l’Holocène précoce, des changements saisonniers causés par les orbites terrestres ont donné des reconstructions inversées de températures saisonnières en raison de contraintes méthodologiques à l’utilisation de la technique analogique moderne et (ou) de conditions non analogiques. À l’échelle millénaire, l’ampleur de la variation climatique dans cette région a été supérieure au cours de la dernière glaciation et au cours des périodes de fin de glaciation que durant les 8000 dernières années. [ABSTRACT FROM AUTHOR]
- Published
- 2008
- Full Text
- View/download PDF
14. Geochemical reconstruction of Pacific decadal variability from the eastern North Pacific during the Holocene.
- Author
-
Ivanochko, Tara S., Calvert, Stephen E., Thomson, Richard E., and Pedersen, Thomas F.
- Subjects
HOLOCENE stratigraphic geology ,ANOXIC zones ,OCEANOGRAPHIC research ,FJORD ecology ,ACCELERATOR mass spectrometry - Abstract
Determining climate variations over the Holocene requires high-resolution records with well-developed age models. A 40 m long marine sediment core raised from Effingham Inlet, an anoxic fjord on the west coast of Vancouver Island, British Columbia, Canada, yields such a record. Forty six
14 C accelerator mass spectrometry (AMS) dates determined from terrestrial plant material form the age model. Downcore sampling at both 5 cm (20 year) and 1.5 cm (7 year) resolution indicates that high-frequency oceanographic variability has prevailed at this site over the last 10 000 years. Spectral analysis of wt.% opal, a proxy for diatom productivity in the basin, reveals the bidecadal and pentadecadal periods of the Pacific decadal oscillation (PDO) – North Pacific index (NPI) that are related to changes in the strength of the Aleutian Low. Coherence analysis between the Effingham Inlet data and δ18 O records from Jellybean Lake (a high elevation site in southwest Yukon) indicates regional coherence at periods of 45, 70, and 510 years between productivity in Effingham Inlet and changes in the Aleutian Low strength. Over the entire Holocene, the strength of decadal variability has changed. Both 20- and 50-year periods are present to some degree in the early Holocene, and only the 50 year period is evident in the late Holocene. These data imply that regime shifts would have been more frequent in the early Holocene relative to the last several thousand years. La détermination des variations climatiques au cours de l’Holocène demande des enregistrements à haute résolution et des modèles d’âge bien développés. Une carotte de sédiments marins d’une longueur de 40 m, prélevée dans le passage Effingham, un fjord anoxique sur la côte Ouest de l’île de Vancouver, au Canada, a fourni un tel enregistrement. Quarante-six dates14 C, obtenues par SMA (spectrométrie de masse avec accélérateur) à partir de matériel de plantes terrestres, forment le modèle d’âge. Des échantillons de la carotte à une résolution de 5 cm (20 ans) et de 1,5 cm (7 ans) indiquent que ce site était sujet à une variabilité océanographique de grande fréquence au cours des derniers 10 000 ans. Une analyse spectrale du pourcentage d’opale, un substitut à la productivité des diatomées dans le bassin, a révélé des périodes bi-décennales et penta-décennales de l’Oscillation décennale du Pacifique – l’indice du Pacifique Nord qui sont reliées aux changements de la dépression des Aléoutiennes. Une analyse de cohérence entre les données du passage Effingham et les enregistrements δ18 O du lac Jellybean (un site à haute élévation dans le sud-ouest du Yukon) indique une cohérence régionale à des périodes de 45, 70 et 510 ans entre la productivité dans le passage Effingham et les changements de force de la dépression des Aléoutiennes. Durant tout l’Holocène, l’amplitude de la variabilité décennale a changé. Les périodes de 20 et de 50 ans sont présentes à un certain degré à l’Holocène précoce alors que seule la période de 50 ans est évidente à l’Holocène tardif. Ces données impliquent que des changements de régime auraient été plus fréquents à l’Holocène précoce par rapport aux quelques derniers milliers d’années. [ABSTRACT FROM AUTHOR]- Published
- 2008
- Full Text
- View/download PDF
15. Late Holocene glacial activity of Bridge Glacier, British Columbia Coast Mountains.
- Author
-
Allen, Sandra M. and Smith, Dan J.
- Subjects
HOLOCENE stratigraphic geology ,QUATERNARY stratigraphic geology ,MOUNTAINS ,GLACIERS - Abstract
Copyright of Canadian Journal of Earth Sciences is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2007
- Full Text
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16. Late Holocene vegetation and climate change at Moraine Bog, Tiedemann Glacier, southern Coast Mountains, British Columbia.
- Author
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Arsenault, T. A., Clague, John J., and Mathewes, R. W.
- Subjects
HOLOCENE stratigraphic geology ,CLIMATE change ,VEGETATION & climate ,AGRICULTURAL climatology ,BIOCLIMATOLOGY ,GLACIERS ,DROUGHTS ,POLLINATION - Abstract
Copyright of Canadian Journal of Earth Sciences is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2007
- Full Text
- View/download PDF
17. The tephra stratigraphy of two lakes in south-central British Columbia, Canada and its implications for mid-late Holocene volcanic activity at Glacier Peak and Mount St. Helens, Washington, USA.
- Author
-
Foit Jr., Franklin F., Gavin, Daniel G., and Hu, Feng Sheng
- Subjects
HOLOCENE stratigraphic geology ,LAKES ,VOLCANOES ,GLACIERS - Abstract
Copyright of Canadian Journal of Earth Sciences is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2004
- Full Text
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18. Cave infill and associated biotic remains as indicators of Holocene environment in Gatineau Park (Quebec, Canada).
- Author
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Lauriol, B., Deschamps, E., Carrier, L., Grimm, W., Morlan, R., and Talon, B.
- Subjects
CAVES ,BIOTIC communities ,HOLOCENE stratigraphic geology - Abstract
Analyzes the cave infill and associated biotic remains as indicators of Holocene environment in Gatineau Park in Quebec, Canada. Information on the study site; Methodology; Details on the paleoenvironmental conditions of the infill; Conclusions.
- Published
- 2003
- Full Text
- View/download PDF
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