Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 1 of 1
Full-Text Articles in Life Sciences
In Search Of "Organ Iii" Strata-A Sedimentary Record Of The Medieval Warm Period (Ca. Ad 900 To 1300), Ed Frederickson, Curtis Monger, Katie Laney
In Search Of "Organ Iii" Strata-A Sedimentary Record Of The Medieval Warm Period (Ca. Ad 900 To 1300), Ed Frederickson, Curtis Monger, Katie Laney
Ed L. Frederickson
The period AD 900 to 1300, internationally referred to as the Medieval Warm Period, is a critical time for the archaeological record of the Southwestern USA. During the Medieval Warm Period both alluvial and eolian sedimentation increased, but not to the magnitude of the middle Holocene (the Altithermal) or since Historical erosion began in the middle 1850s (the end of the Little Ice Age). Locally, the term "Organ III" has been given to the Medieval Warm Period allostratigraphic unit. It is a subtle unit stratigraphically between Altithermal sediments (Organ I) and Historical sediments. Diagnostic features for identifying these three units …