Results 41 to 50 of about 14,111 (141)

Glacierized headwater streams as aquifer recharge corridors, subarctic Alaska

Geophysical Research Letters, 2017
Arctic river discharge has increased in recent decades although sources and mechanisms remain debated. Abundant literature documents permafrost thaw and mountain glacier shrinkage over the past decades. Here we link glacier runoff to aquifer recharge via
A. K. Liljedahl, A. Gädeke, S. O'Neel, T. A. Gatesman, T. A. Douglas   +4 more
doaj   +1 more source

Spatial Distribution and Characteristics of Debris-Covered Glaciers in Xinjiang Based on CGI-XJ2020

Remote Sensing
Debris cover is widespread on glaciers and strongly alters their surface albedo, energy balance, and ablation. Using the Chinese Glacier Inventory of Xinjiang 2020 (CGI-XJ2020), this study investigates the spatial distribution of debris-covered glaciers ...
Zexin Zhan, Zhongqin Li, Jianxin Mu, Feiteng Wang, Qibin Liang, Qian Wang, Wei Chen, Yefei Yang, Weibo Zhao   +8 more
doaj   +1 more source

Allanite U–Pb step-leaching ages of metapelites in the Imjingang belt, central Korea

Journal of Analytical Science and Technology
Background Allanite is a LREE-rich epidote-group mineral, and a potential chronometer for the greenschist-facies metamorphism. However, owing to the metamict nature of allanite, it is extremely difficult to secure sufficient amounts of mineral separates ...
Seunghee Han, Yoonsup Kim, Taehoon Kim, Mi Jung Lee   +3 more
doaj   +1 more source

Clay minerals and elemental composition of smectites in the marine sediment from the southwest Ross Sea and implication for their provenance and sediment input changes after the last glacial period

Geoscience Letters
Smectite in detrital sediments can be composed of various proportions of Al, Mg, and Fe, indicating the sediment sources derived from the bedrock or from the sedimentary strata. Comparing the elemental composition of smectites can help to define sediment
Young Kyu Park, Jae Il Lee, Kyu-Cheul Yoo, Hanbeom Park, Jaewoo Jung   +4 more
doaj   +1 more source

Informing adaptive management to reduce ungulate aggregations: A case study involving winter feeding of elk

Wildlife Society Bulletin
In the United States, wildlife managers are entrusted with preserving culturally and economically important ungulate populations in the face of the ongoing spread of chronic wasting disease (CWD). The U.S.
William M. Janousek, Eric K. Cole, Sarah R. Dewey, Tabitha A. Graves   +3 more
doaj   +1 more source

Bacterial diversity and biopotentials of Hamtah glacier cryoconites, Himalaya

Frontiers in Microbiology
Cryoconite is a granular structure present on the glaciers and ice sheets found in polar regions including the Himalayas. It is composed of organic and inorganic matter which absorb solar radiations and reduce ice surface albedo, therefore impacting the ...
Purnima Singh, Shiv Mohan Singh, Takahiro Segawa, Prashant Kumar Singh   +3 more
doaj   +1 more source

Glaciers [PDF]

The Geographical Journal, 1912
J. W. Gregory, W. H. Hobbs
openaire   +1 more source

Glacierization [PDF]

Journal of Glaciology, 1955
openaire   +3 more sources

Greenlandic water bears reveal a new morphological trait of external head sensory organs

Scientific Reports
Tardigrades are microscopic panarthropods renowned for their ability to undergo cryptobiosis. While integrative taxonomy of tardigrades has been intensively applied in the description of tardigrade species over the past two decades, many details of their
Ji-Hoon Kihm, Krzysztof Zawierucha, Hyun Soo Rho, Tae-Yoon S. Park   +3 more
doaj   +1 more source

Offshore evidence for volcanic landslide post Last Glacial Maximum at sub-Antarctic Heard Island, southern Indian Ocean

Volcanica
Heard Island, an active sub-Antarctic intraplate volcanic island on the Kerguelen Plateau, is mostly covered by glaciers. The amphitheatre shaped summit of the active volcanic centre, Big Ben (2813 m), has been interpreted to be the product of a ...
Jodi M. Fox, Sally J. Watson, Trevor J. Falloon, Rebecca J. Carey, Joanne M. Whittaker, Erica A. Spain, Robert A. Duncan, Richard J. Arculus, Millard F. Coffin   +8 more
doaj   +1 more source