We define tephras and cryptotephras and their components (mainly ash-sized particles of
glass±crystals in distal deposits) and summarize the basis of tephrochronology as a …

Lakes and bogs in northeastern North America preserve tephra deposits sourced from
multiple volcanic systems in the Northern Hemisphere. However, most studies of these …

It has been proposed that fragments of an asteroid or comet impacted Earth, deposited silica-
and iron-rich microspherules and other proxies across several continents, and triggered the …

Little is known about the role of fire in the mountain hemlock (Tsuga mertensiana (Bong.)
Carrière) rain forests of southern British Columbia. High-resolution analysis of macroscopic …

The Holocene explosive eruptive record of Rungwe and Ngozi volcanoes of the Rungwe
Volcanic Province in Tanzania was reconstructed based on detailed stratigraphic field …

Volcanic ash deposits (tephra) in western Canada are instrumental in providing
independent chronologic control for many archaeological and paleoenvironmental sites. In …

To investigate postglacial environmental changes in both the coastal and interior wet belts of
British Columbia, fossil midges were analysed from two subalpine lakes, one adjacent to the …

A series of AMS radiocarbon measurements of terrestrial plant macrofossil remains are
presented from a lake sequence in southernmost Sweden in an attempt to constrain the age …

One of the most famous fossiliferous Pleistocene sites in the Pacific Northwest is Fossil
Lake, Oregon. Until recently, fossil collections from the area were not stratigraphically …

Glaciers on stratovolcanoes of the Pacific Northwest of North America offer opportunities for
dating late Pleistocene and Holocene glacier advances because tephra and fossil wood are …