Results 121 to 130 of about 50,420 (304)
Nesting ecology of an ice‐associated seabird, Kittlitz's murrelet, at the northern edge of its range
We studied the Kittlitz's murrelet, an ice‐associated seabird of conservation concern, at the northern edge of its range. Over a 2‐year period, we estimated nest density and success at 2 sites, captured and telemetered nesting murrelets, and tested the use of a thermal camera to improve nest detection.
Michelle L. Kissling +9 more
wiley +1 more source
Interaction of two tributary glacier branches and implications for surge behavior [PDF]
Thesis (M.S.) University of Alaska Fairbanks, 2018A glacier surge is a dynamic phenomenon where the glacier after a long period of quiescence, increases its velocities by up to two orders of magnitude.
Knowles, Christopher P.
core
Over the last 25 years, perceptions of the early prehistory of Northwest Africa have undergone radical changes due to new fieldwork projects and a corresponding growth in scientific interest in the region. Much of this work has been focused in Morocco, known for its extremely rich fossil and archaeological records in caves and rock shelters.
Nick Barton +3 more
wiley +1 more source
Ablation of Martian glaciers [PDF]
Glacier like landforms are observed in the fretted terrain of Mars in the latitude belts near + or - 42 deg. It was suggested that sublimation or accumulation-ablation rates could be estimated for these glaciers if their shapes were known.
Davis, Philip A., Moore, Henry J.
core +1 more source
Recent years have seen landmark progress in our understanding of early Homo sapiens occupation of Europe, owing to new excavations and the application of new analytical methods. Research on British sites, however, continues to lag. This is because of limitations inherent in existing cave collections, and limited options for new fieldwork at known sites.
Robert Dinnis
wiley +1 more source
Rock Glaciers: Glacial or periglacial?
Recent progress in rock glacier studies is reviewed with some emphases on the competition between the glacial and periglacial hypotheses. Rock glaciers are tongue-shaped or lobate bodies composed of angular boulders that resembles a small glacier, usually accompanied by multiple transverse ridges resulting from a compressive flow.
openaire +2 more sources
Our understanding of the recolonization of northwest Europe in the period leading up to the Lateglacial Interstadial relies heavily on discoveries from Gough's Cave (Somerset, UK). Gough's Cave is the richest Late Upper Palaeolithic site in the British Isles, yielding an exceptional array of human remains, stone and organic artefacts, and butchered ...
Silvia M. Bello +2 more
wiley +1 more source
Tracer Applications of Noble Gas Radionuclides in the Geosciences
The noble gas radionuclides, including 81Kr (half-life = 229,000 yr), 85Kr (11 yr), and 39Ar (269 yr), possess nearly ideal chemical and physical properties for studies of earth and environmental processes.
Fischer, T. P. +10 more
core +3 more sources
And then there was us Et puis nous sommes apparus
In 1987, the academic conference ‘Origins and Dispersals of Modern Humans: Behavioural and Biological Perspectives’ was held in Cambridge, UK. Subsequently referred to as the ‘Human Revolution’ conference, this meeting brought together the most prominent academics working in the field of human origins, including archaeologists and palaeoanthropologists,
Emma E. Bird +2 more
wiley +1 more source
On air temperature fluctuations immediately above a glacier surface [PDF]
Developing remote sensing techniques for measuring meteorological parameters in surface layers of snow ...
Carrara, P. E., Thompson, A. H.
core +1 more source

