Middle Wisconsinan Mammals, Stratigraphy, and Sedimentology at the Ketza River Site, Yukon Territory

Diversity and Distribution of the Terrestrial Mammals of the Yukon Territory: A Review

Philip Youngman (1975) provided the most comprehensive survey of the recent mammals of the Yukon. That information was based on a survey of observations and biological collections from the late 1800s to mid-1970s, and is now over 30 years old. A recent in crease in interest in mammals, particularly non-harvested species, rare species, and species at risk, has resulted in new information and cor...

Stratigraphy, Sedimentology, and Sequence Stratigraphy of the Lower Triassic Sinbad Formation, San Rafael Swell, Utah

The Lower Triassic Sinbad Formation (Thaynes Group) in the San Rafael Swell of east-central Utah (11-18 m thick) represents the maximum flooding zone and at least part of the highstand systems tract of a 185+ m thick depositional sequence. The Sinbad Formation conformably overlies siliciclastic tidal flat, fluvial channel and carbonate peritidal deposits of the Black Dragon Formation, a transgr...

Sedimentology and stratigraphy of the ANDRILL McMurdo Ice Shelf (AND-1B) core

Sedimentology and Stratigraphy of the AND-1B Core, ANDRILL McMurdo Ice Shelf Project, Antarctica

During the 2006–2007 austral season, the ANDRILL McMurdo Ice Shelf Project recovered a core 1285 m-long (AND-1B) from Windless Bight in the McMurdo Sound region. This core contains a range of lithologies, including both siliciclastic and volcanic diamictites, sandstones and mudstones; diatomites; and volcanic ash/tuff and one phonolitic lava fl ow. The succession has been subdivided into eight ...

Thresholds for warming-induced growth decline at elevational tree line in the Yukon Territory, Canada

[1] A few tree ring studies indicate recent growth declines at northern latitudes. The precise causes are not well understood. Here we identify a temperature threshold for decline in a tree ring record from a well-established temperature-sensitive site at elevational tree line in northwestern Canada. The positive ring width/temperature relationship has weakened such that a pre-1965 linear model...