Contents_________________________________ Page Chapter 1: Effects of Fire on Cultural Resources—Introduction..................... 1 by Kevin C. Ryan, Cassandra L. Koerner, Kristine M. Lee, and Nelson Siefkin Introduction............................................................................................................................1 Cultural Resources................................................................................................................2 Legal Protection....................................................................................................................6 Cultural Resources Categorized.........................................................................................10 Tangible and Intangible Cultural Resources...............................................................10 Fire Management................................................................................................................10 Categories of Effects...................................................................................................11 What is the Objective of This Volume?................................................................................13 Chapter 2: Fire Behavior and Effects: Principles for Archaeologists............................................................................................ 15 by Kevin C. Ryan and Cassandra Koerner Fire Basics...........................................................................................................................16 Combustion.................................................................................................................17 Heat Transfer..............................................................................................................18 Fire Behavior Principles..............................................................................................20 The Many Scales of Fire.....................................................................................................22 Fire Behavior and Effects: Concepts and Models...............................................................23 Fire Environment.........................................................................................................23 Fire Intensity, Depth of Burn, and Fire Severity...................................................................37 Fire Intensity...............................................................................................................37 Depth of Burn..............................................................................................................39 Fire Severity................................................................................................................40 Integrating Fire Severity With Cultural Resources..............................................................41 Fire Regime.........................................................................................................................45 Fire Planning.......................................................................................................................48 Fire Planning Software................................................................................................52 Conclusions.........................................................................................................................55 Appendix 2-1—A Field Guide to Fire Severity Terminology and Classification...................56 Fire Characteristics: Fire Intensity Classes.................................................................56 Fire Characteristics: Depth of Burn Classes...............................................................67 Fire Severity Matrix.....................................................................................................75 Chapter 3: Fire Effects on Prehistoric Ceramics............................................. 85 by Trisha Rude and Anne Trinkle Jones Materials and Mechanics of Pottery Construction...............................................................86 Pottery as Raw Material..............................................................................................87 Vessel Formation and Preparation for Firing..............................................................87 Decoration...................................................................................................................88 Clay Firing...................................................................................................................88 iv Page Firing Effects on Non-Clay Inclusions..................................................................................89 Pottery Use and Post-Depositional Changes..............................................................90 Fire Effects Research..........................................................................................................91 Fire Effects on Appearance.........................................................................................92 Fire Effects on Analytical Properties...........................................................................93 Conclusions.........................................................................................................................94 Chapter 4: Fire Effects on Flaked Stone, Ground Stone, and Other Stone Artifacts..........................................................................................97 by Krista Deal Introduction..........................................................................................................................97 Lithic Artifacts and Fire........................................................................................................98 Some Caveats............................................................................................................98 Flaked Stone.......................................................................................................................99 Chert: Flint, Jasper, Chalcedony, and Related Silicates.............................................99 Obsidian....................................................................................................................101 Basalt........................................................................................................................105 Quartz, Quartzite, Mudstone, Rhyolite, Siltstone, Slate, and Vitrified and Welded Tuff......105 Ground Stone....................................................................................................................106 Thermal Effects on Rock Used as Heating or Cooking Stones.........................................108 Other Stone Artifacts.................................................................................................109 Implications for Cultural Resource Protection and Fire Planning......................................110 Chapter 5: Fire Effects on Rock Images and Similar Cultural Resources................................................................................... 113 by Roger E. Kelly and Daniel F. McCarthy Introduction........................................................................................................................113 Setting and Placement..............................................................................................116 Heritage And Research Values..........................................................................................117 Fire Effects........................................................................................................................117 Field Examples..................................................................................................................122 Hawaii.......................................................................................................................122 Arizona......................................................................................................................122 Texas.........................................................................................................................124 California...................................................................................................................124 Colorado...................................................................................................................125 Utah..........................................................................................................................125 Washington...............................................................................................................127 Kentucky...................................................................................................................127 Nevada......................................................................................................................127 Field Examples: Observations..................................................................................127 Mitigation and Protection...................................................................................................127 Restoration and Stabilization.............................................................................................130 Resources Available..........................................................................................................130 v Page Chapter 6: Fire Effects on Materials of the Historic Period.......................... 131 by Charles Haecker Types of Fire Damage.......................................................................................................132 Historic Structures.............................................................................................................132 Native Materials Structures.......................................................................................132 Structures Using Manufactured Materials.................................................................136 Historic Artifacts.................................................................................................................137 Glass.........................................................................................................................137 Metal.........................................................................................................................140 Miscellaneous Artifacts.............................................................................................142 Summary...........................................................................................................................142 Chapter 7: The Effects of Fire on Subsurface Archaeological Materials.... 143 by Elizabeth A. Oster, Samantha Ruscavage-Barz, and Michael L. Elliott Fire and Cultural Sites.......................................................................................................143 Fire Effects and Subsurface Cultural Resources: Previous Research..............................144 Post-Fire Studies of Archaeological Sites.................................................................145 Experimental Studies Dealing with the Effects of Heat on Artifacts, Ecofacts, and Datable Materials...................................146 Thermal Alteration of Cultural Materials and Features..............................................147 Dendrochronology.............................................................................................................150 Radiocarbon Dating (14C)..................................................................................................150 Archeomagnetic Dating.....................................................................................................150 Obsidian Hydration............................................................................................................150 Case Study: Investigation of Subsurface Heating Effects at Bandelier National Monument, New Mexico..............................................................................................151 Thermal Alteration of Ecofacts and Cultural Materials..............................................152 Correlation Between Heating Effects on Archaeological Materials and Visible Changes in the Surrounding Matrix..........................................................................153 Correspondence Between SHE Study Fire Effects and Effects Noted in Experimental Fires....................................................................................................154 Alteration of Datable Materials..................................................................................154 Potential for Detecting Ancient Fires, and Correspondence of Surface and Subsurface Burn Severity Data..........................................................................155 Summary and Conclusions...............................................................................................155 Postscript..................................................................................................................156 Chapter 8: Effects of Fire on Intangible Cultural Resources: Moving Toward a Landscape Approach................................................. 157 byJohn R. Welch Fire Policy and Standard Practice in Cultural Resource Management.............................158 Approach, Scope, and Goals....................................................................................159 Why Consider Fire Effects on Intangible Cultural Resources?..........................................161 Cultural Resources in Local and Management Community Context.................................163 Local Communities...................................................................................................163 Management Communities.......................................................................................163 vi Page Landscapes as Common Ground......................................................................................164 Beyond Compliance and Materials Science......................................................................165 Steps and Stumbling Blocks in Inter-Community Collaboration...........................................166 People First...............................................................................................................167 One Local Community at a Time...............................................................................167 Deal Face Up............................................................................................................167 The Sooner the Better...............................................................................................168 Go to the Source.......................................................................................................168 Respect Tribal Sovereignty.......................................................................................168 Summary and Recommendations.....................................................................................168 Concluding Thoughts.........................................................................................................170 Chapter 9: Implications of Fire Management on Cultural Resources......... 171 by Rebecca S. Timmons, Leonard deBano, and Kevin C. Ryan Planning............................................................................................................................172 Risk Management.............................................................................................................175 Wildland Fire Management Recommendations................................................................180 Prescribed Fire..................................................................................................................182 Prescribed Fire Management Recommendations.....................................................185 Fire Rehabilitation.............................................................................................................186 Fire Rehabilitation Recommendations......................................................................186 Fire Use.............................................................................................................................186 Fire Use Recommendations.....................................................................................186 Summary...........................................................................................................................190 References........................................................................................................................192 Glossary............................................................................................................................209 Index..................................................................................................................................223 vii