Results 41 to 50 of about 3,194 (298)

Ground-ice origin and age on Herschel Island (Qikiqtaruk), Yukon, Canada

Quaternary Science Advances, 2023
Glacial legacies preserved in permafrost such as buried glacial ice of the last ice age are of increasing concern in the Western Canadian Arctic. Permafrost collapse due to melting ground ice largely follows the margins of the maximum Laurentide Ice ...
Sebastian Wetterich, Alexander I. Kizyakov, Thomas Opel, Hendrik Grotheer, Gesine Mollenhauer, Michael Fritz   +5 more
doaj   +1 more source

Sea level fluctuations and their signature in the composition and structure of polygonal wedge ice in the Yenisei River lower reaches

Лëд и снег, 2015
Late Pleistocene and Holocene polygonal-wedge ice is studied in the lower course of the Yenisei River. Ice distribution, features of the formation, chemical and microbiological composition were determined.
O. L. Opokina, E. A. Slagoda, I. B. Tomberg, M. Yu. Suslova, A. D. Firsova, T. V. Khodzher, N. A. Zhuchenko   +6 more
doaj   +1 more source

δ18О values in Holocene and modern ice wedges and AMS radiocarbon ages of ice wedges of the enclosing peat, Lorino site, Eastern Chukchi Peninsula [PDF]

The present study focuses on syngenetic ice wedges exposed in the peatland near the Lorino site on the eastern coast of the Chukchi Peninsula. The study's goal was to find out when peatlands formed and ice wedges grew.
Vasil'chuk, Jessica Yurevna, Vasil'chuk, Yurij K, Maslakov, Alexey A, Tokarev, Igor V, Budantseva, Nadine A, Vasil'chuk, Alla Constantinovna   +5 more
core   +1 more source

A Numerical Ice Load Prediction Model Based on Ice-Hull Collision Mechanism

Applied Sciences, 2020
A simplified numerical model is introduced to predict ice impact force acting on the ship hull in level ice condition. The model is based on ice-hull collision mechanisms and the essential ice breaking characteristics. The two critical ice failure modes,
Meng Zhang, Karl Garme, Magnus Burman, Li Zhou   +3 more
doaj   +1 more source

Geochemical Features of Ground Ice from the Faddeevsky Peninsula Eastern Coast (Kotelny Island, East Siberian Arctic) as a Key to Understand Paleoenvironmental Conditions of Its Formation

Land, 2023
Understanding paleoenvironmental conditions of the permafrost formation allows us to estimate the permafrost carbon pool and its behavior upon thawing in a changing climate.
Anfisa Pismeniuk, Petr Semenov, Alexandra Veremeeva, Wei He, Anna Kozachek, Sergei Malyshev, Elizaveta Shatrova, Anastasiia Lodochnikova, Irina Streletskaya   +8 more
doaj   +1 more source

δ18O values in samples from ice wedges near the village of the Baydarata Bay [PDF]

The main purpose of this work is to establish the formation time of Holocene syngenetic ice wedges that have been exposed on the coast of Baydarata Bay near the village of Yarynskaya, 500 m to the southeast from the mouth of the Ngarka-Tambyakha River ...
Vasil'chuk, Jessica Yurevna, Vasil'chuk, Yurij K, Tokarev, Igor V, Budantseva, Nadine A, Vasil'chuk, Alla Constantinovna, Ginzburg, Alexander P   +5 more
core   +1 more source

Oxygen stable isotope variation in Late Holocene ice wedges in Yamal Peninsula and Svalbard [PDF]

, 2020
The stable oxygen isotope composition of Late Holocene syngenetic ice wedges from the Erkutayakha River valley in the Yamal Peninsula and from the Adventdalen valley in Svalbard was studied. It was demonstrated that the studied ice wedges located 2000 km
Vasil'chuk, Yurij K, Budantseva, Nadine A, Zemskova, Alexandra M, Vasil'chuk, Alla Constantinovna, Chizhova, Julia N, Christiansen, Hanne Hvidtfeldt   +5 more
core   +1 more source

Enhanced heterogeneous ice nucleation by special surface geometry

Nature Communications, 2017
Understanding ice nucleation is important for the development of accurate cloud models. Here Biet al. show that sharp wedges can enhance ice nucleation both when the wedge geometry matches the ice lattice and when such matching is absent, in which case ...
Yuanfei Bi, Boxiao Cao, Tianshu Li
doaj   +1 more source

Isotopic composition of hydrogen (δD), oxygen (δ¹⁸О) and Deuterium excess in veinlets of the syngenetic ice wedges in the Russian permafrost zone [PDF]

, 2021
The authors obtained new results on isotope data for recent growing ice wedges on the coast of the Chukotka Peninsula and summarized data from publications of the last 15-20 years.
Vasil'chuk, Yurij K, Budantseva, Nadine A   +1 more
core   +1 more source

Cryolithostratigraphy of the Middle Pleistocene to Holocene Deposits in the Dmitry Laptev Strait, Northern Yakutia

Frontiers in Earth Science, 2022
The northernmost part of continental Yakutia in the Dmitry Laptev Strait region developed under non-glacial conditions during the Quaternary period. During cooling periods, ice-rich deposits with syngenetic ice wedges, called the Ice Complex, formed here.
Vladimir Tumskoy, Vladimir Tumskoy, Tatiana Kuznetsova   +2 more
doaj   +1 more source