R A Armitage
Biographic Data
| ID | 41206 |
|---|---|
| NAME | R A Armitage |
| GIVEN NAMES | R A |
| FAMILY NAME | Armitage |
| SIGNATURE | ARMITAGE R A |
| AFFILIATIONS | Eastern Michigan University |
| ORCID | 0000-0003-3660-5186 |
| VERIFIED | Yes |
| TOTAL WORKS | 16 |
| TOTAL CITATIONS | 28 |
| AUTHOR COUNT | 16 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1997 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 3 |
Sequencing Analysis and Radiocarbon Dating of Yarn Fragments from Six Paracas Mantles from Bundle WK12-382
The Necrópolis de Wari Kayan, at the Paracas site in the coastal desert of south–central Peru, is a large archeologically excavated mortuary complex with fine textile preservation, dated approximately to 2000 BP. This study investigates loose yarns associated with textiles from Wari Kayan tomb 12 (bundle 382), collected by the late Dr. Anne Paul in 1985 at what is now the Museo Nacional de Arqueología Antropología e Historia del Perú (MNAAHP). Se…
Compositional Analysis of Greco-Roman Unguentaria Residues from the Michael C. Carlos Museum
Unguentaria are ancient vessels for oils, perfumes, ointments, or balms. Glass unguentaria are typically small in size and have long narrow necks to limit the loss of precious contents through spills and evaporation. The vessels may have single or double barrels. This study includes both double and single unguentaria from unprovenanced archaeological contexts. Residues found inside the vessels may reveal the original contents. Gas chromatography-…
What a long strange trip it's been: The best of Mark Pollard and Archaeometry
Characterizing the Dyes of Pre-Columbian Andean Textiles: Comparison of Ambient Ionization Mass Spectrometry and HPLC-DAD
The complex and colorful textiles of ancient Peru have long been a focus of technical study, particularly to characterize the sources of the wide variety of dyes utilized by these Andean artisans. This manuscript describes the characterization of the dyes of both primary (red, blue, and yellow) and secondary (purple, orange, and green) colors sampled from textiles spanning five major civilizations: the Paracas Necropolis, the Nazca, the Wari, the…
Chemical characterization and radiocarbon dating of the rock art of Las Charcas caves, Cuba
There has been much debate over the decades amongst Cuban archaeologists about what group or groups may have created the rock art in the karst caves of Cuba. The complexities of Cuba's history made dating rock paintings an attractive method for determining their origins. Samples were collected from three caves in Mayabeque province, collectively referred to as Las Charcas. Chemical analyses were carried out along with plasma–chemical oxidation an…
Charcoal-painted images from the French Neolithic Villevenard hypogea: An Experimental Protocol for Radiocarbon Dating of Conserved and in Situ Carbon With Consolidant Contamination
Sequencing Analytical Methods for Small Sample Dating and Dye Identification of Textile Fibers
Examination of fibers from a colored fabric fragment from Seip Mound Group, Ohio, demonstrates the utility of sequencing analytical techniques: (1) minimally destructive pretreatment to remove humic acids followed by plasma-chemical oxidation, in preparation for accelerator mass spectrometric determination of radiocarbon age and (2) direct analysis in real time mass spectrometry (DART-MS) of the pretreatment solution, for the determination of red…
Sequencing Analytical Methods for Small Sample Dating and Dye Identification of Textile Fibers: Application to a Fragment from Seip Mound Group, Ohio
Examination of fibers from a colored fabric fragment from Seip Mound Group, Ohio, demonstrates the utility of sequencing analytical techniques: (1) minimally destructive pretreatment to remove humic acids followed by plasma-chemical oxidation, in preparation for accelerator mass spectrometric determination of radiocarbon age and (2) direct analysis in real time mass spectrometry (DART-MS) of the pretreatment solution, for the determination of red…
Direct analysis in real time-mass spectroscopy for identification of red dye colourants in Paracas Necropolis Textiles
The Paracas Necropolis on the south coast of Peru is renowned for the elaborate funerary bundles recovered from that dry sandy region. These bundles contained the remains of male leaders within the Paracas communities surrounded by multiple layers of plain cloth and garments with embroidered designs. The methods and materials used in dyeing the yarns used to embellish these ancient fabrics are still not well understood, and the research presented…
Identification of anthraquinone dye colourants in red fibres from an Ohio Hopewell mound site by direct analysis in real time mass spectrometry
Among prehistoric native groups of North America, the Ohio Hopewell was a particularly notable cultural manifestation that prevailed during the Middle Woodland Period (ca. 2100–1500 BP). The group is defined by the construction of elaborate burial mounds, evidence of ritual burning and cremation ceremonies, and a multitude of intricately decorated objects formed from materials obtained through extensive trade networks. While relatively few textil…
Calcium oxalate AMS 14C dating and chronology of post-Palaeolithic rock paintings in the Iberian Peninsula. Two dates from Abrigo de los Oculados (Henarejos, Cuenca, Spain)
Characterization of bricks and tiles from the 17th-century brick Chapel, St. Mary's City, Maryland
Mass Spectrometric Radiocarbon Dates from Three Rock Paintings of Known Age
Radiocarbon age determinations are presented on three hieroglyphic texts from Naj Tunich cave in Guatemala containing Maya calendar dates. The ages obtained are on average 110-140 years older than the calendar dates. Several possible reasons are discussed for this discrepancy: one that is applicable to all radiocarbon dates on charcoal, one that applies to rock paintings, and one that is specific for the tropics. Possible problems with the ages a…
Dated Rock Paintings at Red Cliffs, Arizona
This article presents radiocarbon dates for painted motifs at Red Cliffs, west of Sedona in the northeastern corner of Yavapai County, Arizona. All rock painting shields at the Red Cliffs sites have usually been attributed to the Sinagua. Black pigment from one shield motif and an overlying white dot on another motif yielded uncalibrated radiocarbon dates of 1080 and 550 years B.P., respectively. The black pigment sample dates to a time when the …
How old is north Queensland's rock‐art? A review of the evidence, with new AMS determinations
It has been 18 years since Andrée Rosenfeld suggested that the rock‐art of north Queensland changed from non‐figurative to mainly figurative forms some 5–4000 years ago. Her views were based on a small regional database and on indirect chronological evidence. This paper looks afresh at the antiquity of north Queensland's rock‐art by reviewing the existing evidence — much elaborated since Rosenfeld's pioneering work — and by presenting new AMS rad…
Rock-art image in Fern Cave, Lava Beds National Monument, California: Not the AD 1054 (Crab Nebula) supernova
The visual manifestation of the recent Hale-Bopp comet reminds us how telling are those rare objects which suddenly flare in the sky. One can suppose ancient people living by natural light were more compellingly struck by the sight of comets and supernovae, and understandably researchers seek images of them in the shapes of rock-art motifs. An absolute dating contradicts that supposition in respect of a presumed image of the visible supernova of …
Mass Spectrometric Radiocarbon Dates from Three Rock Paintings of Known Age
Radiocarbon age determinations are presented on three hieroglyphic texts from Naj Tunich cave in Guatemala containing Maya calendar dates. The ages obtained are on average 110-140 years older than the calendar dates. Several possible reasons are discussed for this discrepancy: one that is applicable to all radiocarbon dates on charcoal, one that applies to rock paintings, and one that is specific for the tropics. Possible problems with the ages a…
Charcoal-painted images from the French Neolithic Villevenard hypogea: An Experimental Protocol for Radiocarbon Dating of Conserved and in Situ Carbon With Consolidant Contamination
Rock-art image in Fern Cave, Lava Beds National Monument, California: Not the AD 1054 (Crab Nebula) supernova
The visual manifestation of the recent Hale-Bopp comet reminds us how telling are those rare objects which suddenly flare in the sky. One can suppose ancient people living by natural light were more compellingly struck by the sight of comets and supernovae, and understandably researchers seek images of them in the shapes of rock-art motifs. An absolute dating contradicts that supposition in respect of a presumed image of the visible supernova of …
Sequencing Analytical Methods for Small Sample Dating and Dye Identification of Textile Fibers: Application to a Fragment from Seip Mound Group, Ohio
Examination of fibers from a colored fabric fragment from Seip Mound Group, Ohio, demonstrates the utility of sequencing analytical techniques: (1) minimally destructive pretreatment to remove humic acids followed by plasma-chemical oxidation, in preparation for accelerator mass spectrometric determination of radiocarbon age and (2) direct analysis in real time mass spectrometry (DART-MS) of the pretreatment solution, for the determination of red…
Characterization of bricks and tiles from the 17th-century brick Chapel, St. Mary's City, Maryland
Dated Rock Paintings at Red Cliffs, Arizona
This article presents radiocarbon dates for painted motifs at Red Cliffs, west of Sedona in the northeastern corner of Yavapai County, Arizona. All rock painting shields at the Red Cliffs sites have usually been attributed to the Sinagua. Black pigment from one shield motif and an overlying white dot on another motif yielded uncalibrated radiocarbon dates of 1080 and 550 years B.P., respectively. The black pigment sample dates to a time when the …
Chemical characterization and radiocarbon dating of the rock art of Las Charcas caves, Cuba
There has been much debate over the decades amongst Cuban archaeologists about what group or groups may have created the rock art in the karst caves of Cuba. The complexities of Cuba's history made dating rock paintings an attractive method for determining their origins. Samples were collected from three caves in Mayabeque province, collectively referred to as Las Charcas. Chemical analyses were carried out along with plasma–chemical oxidation an…
Sequencing Analytical Methods for Small Sample Dating and Dye Identification of Textile Fibers
Examination of fibers from a colored fabric fragment from Seip Mound Group, Ohio, demonstrates the utility of sequencing analytical techniques: (1) minimally destructive pretreatment to remove humic acids followed by plasma-chemical oxidation, in preparation for accelerator mass spectrometric determination of radiocarbon age and (2) direct analysis in real time mass spectrometry (DART-MS) of the pretreatment solution, for the determination of red…
Rock-art image in Fern Cave, Lava Beds National Monument, California: Not the AD 1054 (Crab Nebula) supernova
The visual manifestation of the recent Hale-Bopp comet reminds us how telling are those rare objects which suddenly flare in the sky. One can suppose ancient people living by natural light were more compellingly struck by the sight of comets and supernovae, and understandably researchers seek images of them in the shapes of rock-art motifs. An absolute dating contradicts that supposition in respect of a presumed image of the visible supernova of …
How old is north Queensland's rock‐art? A review of the evidence, with new AMS determinations
It has been 18 years since Andrée Rosenfeld suggested that the rock‐art of north Queensland changed from non‐figurative to mainly figurative forms some 5–4000 years ago. Her views were based on a small regional database and on indirect chronological evidence. This paper looks afresh at the antiquity of north Queensland's rock‐art by reviewing the existing evidence — much elaborated since Rosenfeld's pioneering work — and by presenting new AMS rad…
Dated Rock Paintings at Red Cliffs, Arizona
This article presents radiocarbon dates for painted motifs at Red Cliffs, west of Sedona in the northeastern corner of Yavapai County, Arizona. All rock painting shields at the Red Cliffs sites have usually been attributed to the Sinagua. Black pigment from one shield motif and an overlying white dot on another motif yielded uncalibrated radiocarbon dates of 1080 and 550 years B.P., respectively. The black pigment sample dates to a time when the …
Mass Spectrometric Radiocarbon Dates from Three Rock Paintings of Known Age
Radiocarbon age determinations are presented on three hieroglyphic texts from Naj Tunich cave in Guatemala containing Maya calendar dates. The ages obtained are on average 110-140 years older than the calendar dates. Several possible reasons are discussed for this discrepancy: one that is applicable to all radiocarbon dates on charcoal, one that applies to rock paintings, and one that is specific for the tropics. Possible problems with the ages a…
Characterization of bricks and tiles from the 17th-century brick Chapel, St. Mary's City, Maryland
Calcium oxalate AMS 14C dating and chronology of post-Palaeolithic rock paintings in the Iberian Peninsula. Two dates from Abrigo de los Oculados (Henarejos, Cuenca, Spain)
Direct analysis in real time-mass spectroscopy for identification of red dye colourants in Paracas Necropolis Textiles
The Paracas Necropolis on the south coast of Peru is renowned for the elaborate funerary bundles recovered from that dry sandy region. These bundles contained the remains of male leaders within the Paracas communities surrounded by multiple layers of plain cloth and garments with embroidered designs. The methods and materials used in dyeing the yarns used to embellish these ancient fabrics are still not well understood, and the research presented…
Identification of anthraquinone dye colourants in red fibres from an Ohio Hopewell mound site by direct analysis in real time mass spectrometry
Among prehistoric native groups of North America, the Ohio Hopewell was a particularly notable cultural manifestation that prevailed during the Middle Woodland Period (ca. 2100–1500 BP). The group is defined by the construction of elaborate burial mounds, evidence of ritual burning and cremation ceremonies, and a multitude of intricately decorated objects formed from materials obtained through extensive trade networks. While relatively few textil…
Sequencing Analytical Methods for Small Sample Dating and Dye Identification of Textile Fibers
Examination of fibers from a colored fabric fragment from Seip Mound Group, Ohio, demonstrates the utility of sequencing analytical techniques: (1) minimally destructive pretreatment to remove humic acids followed by plasma-chemical oxidation, in preparation for accelerator mass spectrometric determination of radiocarbon age and (2) direct analysis in real time mass spectrometry (DART-MS) of the pretreatment solution, for the determination of red…
Sequencing Analytical Methods for Small Sample Dating and Dye Identification of Textile Fibers: Application to a Fragment from Seip Mound Group, Ohio
Examination of fibers from a colored fabric fragment from Seip Mound Group, Ohio, demonstrates the utility of sequencing analytical techniques: (1) minimally destructive pretreatment to remove humic acids followed by plasma-chemical oxidation, in preparation for accelerator mass spectrometric determination of radiocarbon age and (2) direct analysis in real time mass spectrometry (DART-MS) of the pretreatment solution, for the determination of red…
Charcoal-painted images from the French Neolithic Villevenard hypogea: An Experimental Protocol for Radiocarbon Dating of Conserved and in Situ Carbon With Consolidant Contamination
Characterizing the Dyes of Pre-Columbian Andean Textiles: Comparison of Ambient Ionization Mass Spectrometry and HPLC-DAD
The complex and colorful textiles of ancient Peru have long been a focus of technical study, particularly to characterize the sources of the wide variety of dyes utilized by these Andean artisans. This manuscript describes the characterization of the dyes of both primary (red, blue, and yellow) and secondary (purple, orange, and green) colors sampled from textiles spanning five major civilizations: the Paracas Necropolis, the Nazca, the Wari, the…
Chemical characterization and radiocarbon dating of the rock art of Las Charcas caves, Cuba
There has been much debate over the decades amongst Cuban archaeologists about what group or groups may have created the rock art in the karst caves of Cuba. The complexities of Cuba's history made dating rock paintings an attractive method for determining their origins. Samples were collected from three caves in Mayabeque province, collectively referred to as Las Charcas. Chemical analyses were carried out along with plasma–chemical oxidation an…
What a long strange trip it's been: The best of Mark Pollard and Archaeometry
Sequencing Analysis and Radiocarbon Dating of Yarn Fragments from Six Paracas Mantles from Bundle WK12-382
The Necrópolis de Wari Kayan, at the Paracas site in the coastal desert of south–central Peru, is a large archeologically excavated mortuary complex with fine textile preservation, dated approximately to 2000 BP. This study investigates loose yarns associated with textiles from Wari Kayan tomb 12 (bundle 382), collected by the late Dr. Anne Paul in 1985 at what is now the Museo Nacional de Arqueología Antropología e Historia del Perú (MNAAHP). Se…
Compositional Analysis of Greco-Roman Unguentaria Residues from the Michael C. Carlos Museum
Unguentaria are ancient vessels for oils, perfumes, ointments, or balms. Glass unguentaria are typically small in size and have long narrow necks to limit the loss of precious contents through spills and evaporation. The vessels may have single or double barrels. This study includes both double and single unguentaria from unprovenanced archaeological contexts. Residues found inside the vessels may reveal the original contents. Gas chromatography-…
Archaeology (13 works) · Archaeology and ancient environmental studies (13 works) · Geography (10 works) · Radiocarbon dating (9 works) · Chemistry (8 works) · Cultural Heritage Materials Analysis (8 works) · Geology (8 works) · Art (7 works) · Art history (5 works) · Geology (5 works)