Results 61 to 70 of about 143,894 (322)

The glacial geomorphology of the western cordilleran ice sheet and Ahklun ice cap, Southern Alaska [PDF]

, 2016
During the late Wisconsinan, Southern Alaska was covered by two large ice masses; the western arm of the Cordilleran Ice Sheet and the Ahklun Mountains Ice Cap. Compared to the other ice sheets that existed during this period (e.g.
Chris D. Clark, Emily A. Gribble, Jeremy C. Ely, Margold M., Spagnolo M., Stroeven A. P.   +5 more
core   +1 more source

Soil wetting and drying processes influence stone artefact distribution in clay‐rich soils: A case study from Middle Gidley Island in Murujuga, northwest Western Australia

Archaeometry, EarlyView.
Abstract Soils that contain swelling clay minerals (e.g., montmorillonite) expand and contract during wetting and drying, causing movement within the soil profile. This process, known as argilliturbation, can alter artefact distributions, destroy stratigraphy and complicate the interpretation of archaeological deposits.
Caroline Mather, Matthias Leopold, Kaitlin Sullivan, Kane Ditchfield, Tom Horrocks, Luke Gliganic, Emma Beckett, Diana Patalwala, Emielda Yusiharni, Michael Smirk, William Hiscock, Jo McDonald   +11 more
wiley   +1 more source

Deglacial landform assemblage records fast ice-flow and retreat, Inner Hebrides, Scotland [PDF]

, 2016
High-resolution bathymetric data have been central to recent advances in the understanding of past dynamics of the former British–Irish Ice Sheet (BIIS).
Arosio, R., Bradwell, T., Dove, D., Finlayson, A., Howe, J.A.   +4 more
core   +1 more source

Assessing the Vulnerability of an Inuit Archaeological Site in a Changing Periglacial Environment: A Novel Multimethod Geophysical Approach in Arctic Geoarchaeology

Archaeometry, EarlyView.
ABSTRACT With northern regions warming at twice the global rate, assessing the state of archaeological sites in these areas is critically important. In this study, we used a multimethod geophysical approach (ERT, GPR, and EMI) to characterize the current geocryological conditions of an Inuit archaeological site on South Aulatsivik Island (Labrador ...
Rachel Labrie, Dominique Todisco, Najat Bhiry, Cécile Finco, Héloïg Barbel Le Page, Armelle Couillet   +5 more
wiley   +1 more source

Glacier retreat and landform production on an overdeepened glacier foreland: the debris‐charged glacial landsystem at Kvíárjökull, Iceland

, 2012
Georgina L. Bennett, David J. A. Evans
openalex   +3 more sources

Reconstructing the confluence zone between Laurentide and Cordilleran ice sheets along the Rocky Mountain Foothills, southwest Alberta [PDF]

, 2016
Landform mapping near the Athabasca valley was fundamental to determining whether the Late Wisconsinan Laurentide and Cordilleran Ice Sheets (LIS, CIS) coalesced. In this paper we examine the detailed landform record using new LiDAR digital elevation and
Andriashek, Atkinson, Atkinson, Banerjee, Barendregt, Bayrock, Bednarski, Benn, Boydell, Boydell, Boydell, Boydell, Briner, Carrivick, Clarhäll, Clark, Clark, Dyke, Dyke, Dyke, Evans, Evans, Evans, Eyles, Eyles, Fenton, Gadd, Gomez, Gowan, Greenwood, Greenwood, Gregoire, Hughes, Jackson, Jansson, Johnston, Kleman, Kvill, Levson, Livingstone, Livingstone, Maizels, Mandryk, Mathews, McPherson, Moran, Osborn, Pană, Pettapiece, Postma, Roed, Roed, Roed, Sharp, Sharpe, St-Onge, Stalker, Stokes, Stokes, Utting, Wolfe, Ó Cofaigh   +61 more
core   +1 more source

Early Holocene jökulhlaup chronology and deglaciation dynamics in central Iceland

Boreas, EarlyView.
Glacial lake outburst floods (jökulhlaups) have occurred throughout the Quaternary in glaciated regions worldwide. Reconstructing flood chronology yields insight into deglaciation processes, environmental change and the role of extreme events in landscape evolution.
Greta H. Wells, Þorsteinn Sæmundsson, Edwin R. C. Baynes, Timothy Beach, Sheryl Luzzadder‐Beach   +4 more
wiley   +1 more source

Late‐Holocene evolution of a small Sub‐Arctic glacier, Gljúfurárjökull (Tröllaskagi, northern Iceland)

Boreas, EarlyView.
Gljúfurárjökull, located on the Tröllaskagi Peninsula in northern Iceland, is a small glacier approximately 3.8 km in length. This study analyses the glacier's evolution through a combination of methods including: (i) geomorphological mapping, (ii) Cosmic‐Ray Exposure (CRE) dating, (iii) lichenometry and (iv) palaeoglacier reconstruction (volume ...
Nuria Andrés, José M. Fernández‐Fernández, David Palacios, Irene Schimmelpfennig, Leopoldo G. Sancho, Skafti Brynjólfsson, Þorsteinn Sæmundsson, Wesley R. Farnsworth, Luis M. Tanarro, Mariano Brito, Javier Santos‐González, Rosa B. González‐Gutiérrez, ASTER Team, Georges Aumaître, Karim Keddadouche   +14 more
wiley   +1 more source

Contribution for an urban geomorphoheritage assessment method. Proposal from three geomorphosites in Rome (Italy) [PDF]

, 2017
Urban geomorphology has important implications in spatial planning of human activities, and it also has a geotouristic potential due to the relationship between cultural and geomorphological heritage.
DEL MONTE, Maurizio, Fredi, Paola, Gian Marco, Luberti, Pica, Alessia, Vergari, Francesca   +4 more
core   +2 more sources

Calculation and inducement of lacuna in the Mid-Permian Maokou Fm of Sichuan Basin

Natural Gas Industry B, 2018
Erosion of carbonate strata not only can reflect the karst landform, but also can reveal the characteristics of carbonate karst reservoirs indirectly. In Sichuan Basin, the quantity and root causes of lacuna in the top strata of the Maokou Fm are unclear.
Qingchun Jiang, Suyun Hu, Hua Jiang, Xiufen Zhai, Mengyi Ren, Xiaoyue Chen, Qiufen Li, Yunbo Zhang   +7 more
doaj   +1 more source