Latest Quaternary papers

Wednesday, 17 September 2014
Boreas

The drainage of Lake Ojibway in glaciolacustrine sediments of northern Ontario and Quebec, Canada

Physical evidence for the drainage of glacial lakes remains relatively rare in depositional records, giving rise to much debate on the location of outlets and discharge pathways, as well as on the climate impact of the attendant meltwater forcing. Lake Ojibway developed following the withdrawal of the Laurentide Ice Sheet in northern Ontario and Quebec, Canada. The late-stage evolution of this large ice-dammed lake was influenced by the complex dynamics of the retreating ice margin, which highly complicates the identification of the termination of Lake Ojibway in glaciolacustrine sediment records. Here, we document the composition of sections of rhythmites that contain in their upper part an anomalously thick and whitish bed (10–15 cm) that is in turn overlain by ∼1 m of faintly bedded rhythmites. Grain-size analyses showed that the thick whitish bed consists primarily of fine to coarse silt (2–63 μm), contrasting with the lower and upper rhythmites that are largely dominated by clay (<2 μm). The detrital carbonate content of the thick silt bed is characterized by consistently high values (2.5 to 2.8%), whereas the bounding rhythmites show lower and highly variable values. Oxygen isotope measurements further show a marked change going from typical glacial meltwater values (∼ −29.6 to −27.7‰; VSMOW) for the lower rhythmites and the silt bed to modern-like meteoric values (−18.4 to −14.6‰) for the uppermost rhythmites. These data suggest that this marker bed may be associated with a major drawdown event that possibly corresponds to the final drainage of Lake Ojibway. AMS radiocarbon dating of ostracods extracted from the drainage bed also documents an important hardwater effect within the Ojibway basin.

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Tuesday, 16 September 2014
Earth and Planetary Science News

• Comparison of snowpack on a slope and on flat land focusing on the effects of water infiltration

• Shinji Ikeda, Takafumi Katsushima, Hiroki Matsushita, Yasuhiko Ito, Yukari Takeuchi, Kazuya Akiyama

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Tuesday, 16 September 2014
Earth and Planetary Science News

• Comparison of the physical and geotechnical properties of gas-hydrate-bearing sediments from offshore india and other gas-hydrate-reservoir systems

• W.J. Winters, R.W. Wilcox-Cline, P. Long, S.K. Dewri, P. Kumar, L. Stern, L. Kerr

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Tuesday, 16 September 2014
Earth and Planetary Science News

• Crossing numerical simulations of snow conditions with a spatially-resolved socio-economic database of ski resorts: A proof of concept in the French Alps

• H. François, S. Morin, M. Lafaysse, E. George-Marcelpoil

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Tuesday, 16 September 2014
Earth and Planetary Science News

• Formation mechanism of deep Cambrian dolomite reservoirs in the Tarim basin, northwestern China

• Dongya Zhu, Qingqiang Meng, Zhijun Jin, Quanyou Liu, Wenxuan Hu

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Tuesday, 16 September 2014
Earth and Planetary Science News

• Gas hydrate distribution and carbon sequestration through coupled microbial methanogenesis and silicate weathering in the Krishna-Godavari basin, offshore India

• Evan A. Solomon, Arthur J. Spivack, Miriam Kastner, Marta E. Torres, Gretchen Robertson

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Tuesday, 16 September 2014
Earth and Planetary Science News

• Late Pleistocene and Palaeolithic studies in Northeast Asia

• Xing Gao, Robin Dennell

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Tuesday, 16 September 2014
Earth and Planetary Science News

• Reindeer during the Upper Palaeolithic in Poland: Aspects of variability and paleoecology

Teresa Piskorska et al.

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Tuesday, 16 September 2014
Earth and Planetary Science News

• The molluscs record: A tool for reconstruction of the Late Pleistocene (MIS 3) palaeoenvironment of the Bol'shoj Naryn site area (Fore-Baikal region, Eastern Siberia, Russia)

• Guzel Danukalova, Eugeniya Osipova, Fedora Khenzykhenova, Takao Sato

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Monday, 15 September 2014
Boreas

Boreas Reviewers, volume 43

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Friday, 05 September 2014
Earth and Planetary Science News

Morphology and orientation of curling of kaolinite layer in hydrate

Jinan Niu, Yinghuai Qiang, Xiang Li, Zhangsheng Liu, Shenghui Zhang, Peizhong Feng, Xuemei Ou

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Friday, 05 September 2014
Earth and Planetary Science News

Water content, δD and δ11B tracking in the Vanuatu arc magmas (Aoba Island): Insights from olivine-hosted melt inclusions

Nicole Métrich, Etienne Deloule

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Friday, 05 September 2014
Earth and Planetary Science News

From the lavas to the gabbros: 1.25 km of geochemical characterization of upper oceanic crust at ODP/IODP Site 1256, eastern equatorial Pacific

• Tobias W. Höfig, Jörg Geldmacher, Kaj Hoernle, Folkmar Hauff, Svend Duggen, Dieter Garbe-Schönberg

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Friday, 05 September 2014
Earth and Planetary Science News

Chemical and Mineral Transformations that occur in Mine waste and washery rejects during Pre-Utilization calcination

• R. Vigil de la Villa, M. Frías, R. García-Giménez, S. Martínez-Ramirez, L. Fernández-Carras

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Friday, 05 September 2014
Earth and Planetary Science News

Pore characteristics of Wilcox Group Coal, U.S. Gulf Coast Region: Implications for the occurrence of coalbed gas

Sharon M. Swanson, Maria D. Mastalerz, Mark A. Engle, Brett J. Valentine, Peter D. Warwick, Paul C. Hackley, Harvey E. Belki

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Friday, 05 September 2014
Earth and Planetary Science News

Study of surface acid–base properties of natural clays and zeolites by the conversion of 2-methylbut-3-yn-2-ol

Lyudmila Novikova, Frank Roessner, Larisa Belchinskaya, Murad AlSawalha, Victoriya Krupskaya

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Friday, 05 September 2014
Earth and Planetary Science News

• Acid-treated vermiculites as effective catalysts of high-temperature N2O decomposition

• Lucjan Chmielarz, Małgorzata Rutkowska, Magdalena Jabłońska, Agnieszka Węgrzyn, Andrzej Kowalczyk, Paweł Boroń, Zofia Piwowarska, Adam Matusiewicz

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Friday, 05 September 2014
Earth and Planetary Science News

• Petrological recognition of bituminous inertinite enriched coals of the Lower Silesian Coal Basin (Central Sudetes, SW Poland)

Małgorzata Uglik, Grzegorz J. Nowak

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Friday, 05 September 2014
Earth and Planetary Science News

Graphite thermometry in a low-pressure contact aureole, Halifax, Nova Scotia

• L.J. Hilchie, R.A. Jamieson

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Thursday, 04 September 2014
Boreas

Field guide to Iceland

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