Part 1: Explore the Pueblo Bonito Site part of TREX - Tree Ring Expeditions:TREX for Students:Labs
Before beginning your research into the age and paleoclimate of the Pueblo Bonito site, it is important to understand the setting and context of the region you are studying. How would you describe the site? What ...

Part 2: Use a Skeleton Plot to Discover the Age of a Pueblo Ruin part of TREX - Tree Ring Expeditions:TREX for Students:Labs
In the introduction, you learned that in order to connect a tree-ring record from historical wood to that of living trees, Douglass and his team would have had to find additional historical wood that existed ...

Part 2: Explore the Colorado River Basin part of TREX - Tree Ring Expeditions:TREX for Students:Labs
Have you been in a drought? Are you living through one now? Most places in the United States experience drought occasionally. Sometimes, drought causes widespread interruptions of daily life. Other times, drought ...

Part 1: Exploring The Humpty Dumpty Talus Slope part of TREX - Tree Ring Expeditions:TREX for Students:Labs
In this activity, you will focus on a region that has areas of loose rock called talus interspersed with stands of shrubs and trees. The site ecology at Humpty Dumpty talus slope is very important because the ...

Part 1 - What is Dendrochronology? part of TREX - Tree Ring Expeditions:TREX for Students:Labs
A Brief History In the late 1800s and early 1900s, Andrew. E. Douglass founded the science of dendrochronology— the technique of dating events, environmental change, and archaeological artifacts by using the ...

Part 3 - Exploring Tree-Ring Sites Around the World part of TREX - Tree Ring Expeditions:TREX for Students:Labs
Introduction Take a look at the huge number of published tree-ring chronologies (green triangles) that have been made available to the public by the scientists who originally collected them. Tree-ring scientists ...

Educator Guide: Lab 6 - Climate Extremes and Impacts on People part of TREX - Tree Ring Expeditions:TREX Guides
View the Student Lab » NOTE: To get access to the Answer Keys for the TREX labs, you will need to 'Request Instructor Access' using the tab in the navigation menu on the left side of this page. This is ...

Part 1. Past Climate Extremes and Impacts part of TREX - Tree Ring Expeditions:TREX for Students:Labs
As described in the Introduction, the Little Ice Age (~1450-1850 CE) was a significant period of cool climate in the Northern Hemisphere. The end of the Little Ice Age was especially cold, in part due to several ...

Webinar: Using Tree-Ring Research to Develop Critical Scientific Thinking Skills in Undergraduate Students part of TREX - Tree Ring Expeditions:TREX Guides
Thursday, November 2, 2017 12:00 pm PT | 1:00 pm MT | 2:00 pm CT | 3:00 pm ET Presenter: Dr. Nicole Davi (William Paterson University & Lamont-Doherty Earth Observatory) Jump down to: Resources, including ...

Part 4: Megadroughts and the People of Pueblo Bonito part of TREX - Tree Ring Expeditions:TREX for Students:Labs
In the 1930s, the Great Plains region of the United States was devastated by drought. The 150,000-square-mile area, encompassing the Oklahoma and Texas panhandles and neighboring sections of Kansas, Colorado, and ...