Results 101 to 110 of about 8,171 (221)

PALAEO-ICE STREAMS IN THE NORTH-EASTERN LAURENTIDE ICE SHEET

, 2007
This thesis presents a palaeoglaciological study aimed to determine the location, geometry and temporal evolution of palaeo-ice streams of the north-easternmost Laurentide Ice Sheet. The work was accomplished through the geomorphological interpretation of satellite imagery over 3.19 x 106 km2 of the Canadian Arctic, using a glaciological inversion ...
openaire   +2 more sources

An Interpretation of Late Quaternary Glacial Flow Indicators in the Baie des Chaleurs Region, Northern New Brunswick [PDF]

, 1989
A sequence of late Quaternary geologic events in northern New Brunswick is determined from striation analysis derived from published data, open file reports, and field research conducted by the authors since 1985.
Bobrowsky, P. T., Parkhill, M. A., Pronk, A. G.   +2 more
core   +1 more source

Early to Mid‐Holocene Cool Temperature‐Induced Drought in Asian Interior

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Hydroclimatic variations in mid‐latitude Asia during the early to mid‐Holocene and associated mechanisms remain disputed, hampering our understanding of atmospheric circulation controls on regional climatic changes. We report Holocene alkenone records from two Siberian lakes, documenting lake temperature and hydrological changes, and ...
Jiawei Jiang, Huanye Wang, Hu Liu, Guoqiang Chu, Weiguo Liu, Sergey Krivonogov, Zhonghui Liu   +6 more
wiley   +1 more source

Glacial geomorphology of the northern Kivalliq region, Nunavut, Canada, with an emphasis on meltwater drainage systems

Journal of Maps, 2017
This paper presents a glacial geomorphological map of glacial lineations, ribbed terrain, moraines, meltwater channels (subglacial and ice-marginal/proglacial), eskers, glaciofluvial deposits, ice-contact outwash fans and deltas and abandoned shorelines ...
Robert D. Storrar, Stephen J. Livingstone   +1 more
doaj   +1 more source

Dynamique de l’Inlandsis laurentidien du Sangamonien à l’Holocène [PDF]

, 1987
Les études de terrain de la dernière décennie ont complètement bouleversé la conception de l'Inlandsis laurentidien du dernier étage glaciaire. Le glacier continental est composé de trois principaux secteurs interdépendants; Keewatin, Baffin et Labrador.
Occhietti, Serge
core   +1 more source

Differentiating hyperpycnal, hypopycnal and turbidity current deposits in late Quaternary glaciogenic mud

The Depositional Record, Volume 12, Issue 1, February 2026.
X‐ray CT and microscopic analysis of glaciogenic mud provide insight into the deposits of sediment‐laden density flows and reveal that strata comprise two microtextural motifs. The deposits of bottom‐hugging hyperpycnal flows and slope‐failure‐related turbidity currents are characterised by laterally continuous, sharply bounded silt‐rich and clay‐rich ...
Omar N. Al‐Mufti, R. William C. Arnott, Marc J. Hinton, Hazen A. J. Russell   +3 more
wiley   +1 more source

Isotopic Fingerprints of Ice‐Rafted Debris Offer New Constraints on Middle to Late Quaternary Arctic Circulation and Glacial History

Geochemistry, Geophysics, Geosystems, 2020
For the first time, ice‐rafted debris provenance related to the Quaternary glacial discharge and circulation was constrained using radiogenic Sr, Nd, and Pb isotopes from a sedimentary record (Core BN05) from the central Arctic Ocean.
Linsen Dong, Leonid Polyak, Yanguang Liu, Xuefa Shi, Jun Zhang, Yuanhui Huang   +5 more
doaj   +1 more source

New age constraints reveal moraine stabilization thousands of years after deposition during the last deglaciation of western New York, USA [PDF]

Geochronology
The timing of the last deglaciation of the Laurentide Ice Sheet in western New York is poorly constrained. The lack of direct chronology in the region has led to a hypothesis that the Laurentide Ice Sheet re-advanced to near its Last Glacial Maximum ...
K. K. Prince, J. P. Briner, C. K. Walcott, B. M. Chase, A. L. Kozlowski, T. M. Rittenour, E. P. Yang, E. P. Yang   +7 more
doaj   +1 more source

Reconstructing the Relative Ice-Flow Chronology South of Lake Mistassini in Canada from New Ice-Flow Indicator Mapping

Limnological Review
Understanding paleo-ice flow chronology is essential for reconstructing past ice mass dynamics, interpreting the current landscape, and identifying the sources of Quaternary sediments in deglaciated regions.
Mohamed El Amrani, Khadija Diani, Mohamed Hafedh Hamza, Mohamed Elhag, Said Courba, Afaf Amine, Moulay Ahmed Ben Driss, Lahcen Ousaid, Nabil Mdiker, Youssef Hahou, Larbi Boudad   +10 more
doaj   +1 more source

Terrestrial evidence for ocean forcing of Heinrich events and subglacial hydrologic connectivity of the Laurentide Ice Sheet. [PDF]

Sci Adv, 2022
Edwards GH, Blackburn T, Piccione G, Tulaczyk S, Miller GH, Sikes C.   +5 more
europepmc   +1 more source