Geologic Overview of a Bison-Carcass Site at Norris Geyser Basin, March 2004
http://www.nps.gov/yell/naturescience/upload/norrisbison.pdf

Heasler Hank, Yellowstone National Park


This Yellowstone National Park report describes the conditions that apparently caused the death of five bison near the Norris Geyser Basin. The bison appear to have died from hydrogen sulfide and/or carbon dioxide emitted from nearby gas vents. This PDF file contains text, data, and photographs that explain the Park scientist's findings.

This resource is referenced here:
Subject: Geoscience:Geology:Geochemistry
Resource Type: Datasets and Tools:Datasets, Scientific Resources:Research Results
Topics: Solid Earth:Geochemistry, Chemistry/Physics/Mathematics
Focus on Yellowstone: Wildlife and plants, Yellowstone hazards, Geothermal processes and features