Pictograph radiocarbon dating caribbean
The identification of charcoal-based pigments is important for rock-art and radiocarbon studies in the region.... We used plasma oxidation and accelerator mass spectrometry (AMS) to directly radiocarbon ( ¹⁴ C) date two charcoal paintings—confirming that the images are more than 9000 yr old.
Considerations and limitations of p XRF analysis are discussed to inform future research.
A red painted zigzag at the Ruby Site, a ]ornada Mogollon site in southeastern New Mexico, was dated at 3140±60 years B. Superimposition of circular and other abstract painted motifs over the zigzags at the Ruby site suggest the age is accurate. The red smear appears to underlie the human like figure (Jannie Loubser, personal communica tion 2004). A glossy, black deposit covers much of the ceiling and walls of Little Lost River Cave No. This site is of particular interest because of the red, orange, and yellow pictographs underlying the coating.
Further, there are other dated zigzags in the Jornada region that support an old age for the Ruby figure A Pecos River style painting of a black deer from Black Cave Annex (41VV76a) in southwest Texas was radiocarbon dated. Carbon and nitrogen stable isotope analysis has allowed us to better understand the nature and origin of the deposit.
We found that manganese and iron minerals were the main constituents of black and red paints, respectively. Scanning electron microscopy with energy dispersive X-ray spectroscopy and Fourier transform Raman spectroscopy were used to identify charcoal as black pigment.
Scanning electron microscopy with energy dispersive X-ray spectroscopy and Fourier transform Raman spectroscopy were used to identify charcoal as black pigment.
We found that manganese and iron minerals were the main constituents of black and red paints, respectively.