A Chronological Database of Quaternary Dune Fields and Sand Seas

 
PROJECT LEADER 
Nicholas Lancaster, 
Research Professor. Earth and Ecosystem Sciences, Desert Research Institute, 2215 Raggio Parkway Reno, NV 89512-1095, USA.

As significant sedimentary deposits and landforms, sand seas and dune fields provide an archive of the effects of climate and sea level change on a variety of temporal and spatial scales. Dune systems provide a valuable source of information on past climate conditions, including evidence for periods of aridity and unique data on past wind regimes.

The INQUA Dunes Atlas project has developed a global digital database of chronologic information for periods of inland sand dune accumulation and stabilization.  In addition to luminescence and radiocarbon age data, the database includes information on the site location (including coordinates), dune type, and stratigraphic context, pertinent analytical information (e.g. luminescence procedures), and literature citations to the original data source.

Project members comprise regional correspondents who are familiar with the information for their area and are responsible for compiling data on chronology and stratigraphy from published sources. These data are then added to the database by the project leader.

The project is a contribution to INQUA TERPRO (Commission on Terrestrial Processes, Deposits and History).

Project Objectives

  • Document the history of aeolian processes in arid regions with emphasis on dune systems in low and mid latitude deserts
  • Correlate periods of sand accumulation and stability with other terrestrial and marine paleoclimatic proxies and records
  • Develop improved understanding of the response of dune systems to climate change