The Barberton Greenstone Belt contains the oldest well-preserved volcanic and sedimentary rocks known on Earth and provides a unique window on surface environments
and the development of postcollisional
This disc will contain all of the 2015 articles from GSA Bulletin
and extraterrestrial impacts
records a complex history of Pennsylvanian and Early Permian sedimentation
Geoecology of the Marias River Canyon, Montana, USA 1-1-001-337-4330-337 The Barberton Greenstone Belt containsFull title: Geoecology of the Marias River Canyon, Montana, USA: Landscape Influence on Human Use and Preservation of Late Holocene Archaeological and Vertebrate Remains Authors: James G. Schmitt, John W. Fisher Jr., Michael P. Neeley, David F. Pac, Frankie D. Jackson, Scott J. Patterson, Jennifer L. Aschoff, and Stuart Challender The Marias River canyon in north central Montana served during late Holocene time as a locus of human activity in an