diagenesis (Other Keyword)

1-2 (2 Records)

Accuracy vs. Precision: Understanding Potential Errors from Radiocarbon Dating on African Landscapes (2015)
DOCUMENT Citation Only David Wright.

Primarily located in the tropical latitudes with a diverse array of unique floral and fauna, there are unique challenges for obtaining a reliable chronology for archaeological sites on the African subcontinent. Radiocarbon dating is the most frequently employed method for gaining age control on Late Quaternary sites, however aspects affecting the accuracy of the method are rarely considered. Carbon recycling from reservoirs in old sedimentary structures may uptake into ostrich eggshell or...


General Taphonomy and Diagenesis of a Submerged Pleistocene Skeleton from the Cenote of Hoyo Negro, Tulum, Quintana Roo, Mexico: Preliminary Results (2015)
DOCUMENT Citation Only PATRICIA QUINTANA. Vera Tiesler. Diana Arano. Dominique Rissolo. James Chatters.

This paper examines the macroscopic taphonomy and the diagenesis of a partially lifted preceramic skeleton of a female juvenile (called "Naia"), dated approximately between 13,000 and 12,000 yrs. AP. Naia was recovered at 41 meters below sea level in a submerged karstic cave. Despite the good general preservation of Naia’s remains, the bone segments are brittle, showing changes attributable to time, weathering, changing salinity and micro-organisms. The external bone layer is only loosely...