THE OCCURRENCE OF PALYGORSKITE IN THE YUCATÁN PENINSULA: ETHNO‐HISTORIC AND ARCHAEOLOGICAL CONTEXTS*

Palygorskite is a rare clay mineral used by the ancient Mayas for fabricating the Maya blue pigment and for other purposes. It seems to have been obtained from a restricted area in the Yucatán peninsula where important archaeological sites are found. Geological samples from different localities in this area show a high content in palygorskite, indicating that this clay is widespread in Yucatán. Combining structural, morphological, compositional and geochemical methods, we analysed the common characteristics of Yucatecan palygorskites, and compared them with palygorskites from other origins around the world. These results can be used for defining a fingerprint of Yucatecan palygorskite to be used in provenance studies of archaeological artefacts, in particular the Maya blue pigment.     

STUDY OF ROMAN ANCHOR FROM THE DEAD SEA SHORE*

A wooden Roman anchor was discovered at the retreating shore of the Dead Sea, north of Ein Gedi. The anchor's wood material was coated by a thick veneer of aragonite and gypsum crusts. The wood was dated by radiocarbon to the early Roman time in the Levant. Lead isotope analyses carried out on the Pb–Fe–Cu anchor material (remains of the anchor's metal parts) yielded ratios that indicate origin of the metal in Italian ores (maybe Tuscan). For the wooden part of the anchor a local tree was used.     

Medieval (9th–13th Century) Combs from Northwestern Siberia

Medieval (9th–13th century) wooden and bone combs from archaeological sites in the Middle and Lower Ob basin are described. Those from Strelka and Bukhta Nakhodka are published for the ?rst time. The shape of the combs and the meaning of certain decorative patterns are discussed and comparative data is used. Until the 13th century, the native peoples of Northwestern Siberia used mostly unilateral combs made of a single piece of wood or bone. Later they were gradually replaced by imported bilateral combs of the Old Russian type or their local replicas. Apparently, medieval unilateral combs were used not only as hygiene items but also as elements of coiffure and amulets     

Impact of Salmon Fishing on Livelihood and Social Relations Among the Ulchi and the Amur Nanai (Second Half of the 19th – Early 20th Century)

Drawing on an analysis of literary sources, 1897 Census data, and the author's ?eld materials, the study examines the impact of salmon ?shing on the economic and social structures of the Tungus-Manchu ethnic groups – the Ulchi and Nanai people. Speci?c features of the spawning migration of various species of Paci?c salmon formed the regional basis of livelihoods in the Lower Amur region. These same features determined the economic character and structure of settlements as well as impacting social relations among the Amur Nanai and the Ulchi.