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41.
In a previous article, we presented an innovative method to analyze cut marks produced with metal tools on animal bones from a metrical and tridimensional perspective (Maté-González et al. 2015). Such analysis developed a low-cost alternative technique to traditional microscopic methods for the tridimensional reconstruction of marks, using their measurements and sections. This article presents the results of an experimental study to test this photogrammetric and morphometric method for differentiating cut marks generated with metal, flint, and quartzite flakes. The results indicate statistically significant differences among cut marks produced by these three types of raw material. These results encourage the application of this method to archeological assemblages in order to establish a link between carcass processing and lithic reduction sequences on different raw materials and also to define the kind of tools used during butchery.  相似文献   
42.
Torres-Martínez, M.A., Sour-Tovar, F. & Barragán, R., November 2017. Kukulkanus, a new genus of buxtoniin brachiopod from the Artinskian–Kungurian (Early Permian) of Mexico. Alcheringa 42, 268–276. ISSN 0311–5518.

Kukulkanus is the first genus of the tribe Buxtoniini recorded from rocks of the late Cisuralian (Artinskian–Kungurian). The Early Permian (Cisuralian) outcrops of the Santa Rosa Group, from southeastern Chiapas, are one of the most important marine Palaeozoic successions of Mexico. The Artinskian–Kungurian Paso Hondo Formation is the youngest unit in the succession and is dominated by massive limestone. Different marine invertebrates deposited in massive calcareous rocks characterize this formation. The buxtoniin Kukulkanus spinosus gen. et sp. nov. is reported from a single bed within the unit. The outcrops are located in southeastern Chiapas, very near the Guatemala–Mexico border. The lithological features and the preservation of fossils indicate that the fossil-bearing rocks were deposited in a low-energy open-waters paleoenvironment over the continental platform. Fusulinids, cephalopods and brachiopods previously described for the Paso Hondo Formation have been correlated with faunas of different coeval localities from Texas, New Mexico, Coahuila, Chiapas and Venezuela, regions that form part of the biotic Grandian Palaeo-Province.

Miguel A. Torres-Martínez [] Departamento de Paleontología, Instituto de Geología, Circuito de la Investigación Científica, Avenida Universidad No. 3000. Colonia Universidad Nacional Autónoma de México, Delegación Coyoacán, Cd. Mx. C.P. 04510, Mexico. Francisco Sour-Tovar [] Museo de Paleontología, Facultad de Ciencias, Universidad Nacional Autónoma de México. Av. Universidad No. 3000, Colonia Universidad Nacional Autónoma de México, Delegación Coyoacán, Cd. Mx. C.P. 04510, Mexico. Ricardo Barragán [] Departamento de Paleontología, Instituto de Geología, Circuito de la Investigación Científica, Avenida Universidad No. 3000. Colonia Universidad Nacional Autónoma de México, Delegación Coyoacán, Cd. Mx. C.P. 04510, Mexico.  相似文献   

43.
This article discusses several structural factors in the policy environment of Ecuador thought to determine the process of occupation by agricultural colonists of the country's segment of Amazonia and the emerging land settlement patterns in the region. These factors are fundamentally concerned with (a) national sovereignty interests over remote, peripheral territories characterized by low population density and ill-defined land ownership, (b) the reduction of demographic and social pressures in other regions of the country, and (c) the extension of the agricultural frontier. For economic and geopolitical reasons, the Ecuadorian state is likely to maintain a moderate and rather ineffectual set of incentives supporfted by the current legislation to allow the occupation of the Amazon region. Consequently, as migrants continue to flow into the easily degradable areas of the Amazon, and without increased population carrying capacity outrside the Amazon, some conversion of the rainforest environment of eastern Ecuador to other uses is certain to continue. A more detailed microlevel understanding of the interrelationship among factors influencing land-use decisions by settler farmers is needed to find policy-entry points.  相似文献   
44.
The authors propose a scheme of economic regionalization for Cuba, based on Soviet Marxist principles. These include the idea of objective existence of a region, independently of man's will; the need for considering future developmental prospects; energy supply; the prerequisites for integrated development of the regional economy; the presence of a regional specialization; maximum promotion of a geographical division of labor, and the factor of the country's defense capability. The resulting system of six regions in described.  相似文献   
45.
Many aspects of bronze production during Late Bronze Age in Western Europe are so far unknown. In the present study selected artefact fragments and metallurgical debris, which include a slag fragment, from the emblematic Late Bronze Age habitat site of Castro da Senhora da Guia de Baiões (Viseu, Portugal) have been studied by optical microscopy, micro-EDXRF, SEM–EDS and XRD. Evidences were found for bronze production involving smelting and recycling. Compositional analysis showed that the artefacts are made of a bronze with 13 ± 3 wt.% Sn (average and one standard deviation) and a low impurity pattern, namely <0.1 wt.% Pb, being comparable with the composition of other bronzes from the same region (the Central Portuguese Beiras). This alloy is generally different from elsewhere Atlantic and Mediterranean bronzes, which show frequently slightly lower Sn contents and higher impurity patterns, namely Pb which is often present as an alloying element. The present study gives further support to early proposals suggesting the exploration of the Western Iberian tin resources during Late Bronze Age, and besides that, it indicates that metalworking and smelting could have been a commonplace activity requiring no specific facilities, being bronze produced at a domestic scale in this Western extreme of Europe.  相似文献   
46.
The management and conservation of animal species should be based upon a long-term analysis that considers its geographical distribution and feeding patterns. The study of carbon and nitrogen stable isotopes on skeletal remains provides a quantitative approach to the paleodietary reconstructions and constitutes a potent tool for comparing behavioral aspects of the fauna. In this paper we present the first set of isotopic values for modern and archaeological samples of Huemul (Hippocamelus bisulcus) from the forests of Central-western Patagonia, Chile. Contrary to initial expectations, our analysis indicates that there is no evidence of an important incidence of the canopy effect on the δ13Ccollagen values, which we suggest is due to an ecological selection that drives the huemul to focus its predation on open sectors within the forest. On the other hand, a wide range of δ15Ncollagen values for huemul was verified. This could reflect the N impoverishment of the forest soils and provide an interesting ecological indicator. The long-term information offered by the archaeological record provides the necessary context for decision-making conducive towards the preservation of Hippocamelus bisulcus in Patagonia.  相似文献   
47.
This article examines an obscure custom found in Iberian ethnography: that of having one's eldest children serve as godparents for their own youngest siblings, starting with the seventh. The paper's main working hypothesis is that this custom is to be understood in the context of underlying conceptions that fairytales convey in a symbolical guise. The argument highlights the relationship of examined notions with the “Dragon Slayer” theme, to bring out stable themata concerning ontological complexity and metamorphosis, in the light of which the Iberian custom is interpreted.  相似文献   
48.
This article will focus on a seldom-considered aspect of Saharan social contexts: the incorporation of European/Christian characters into tribal sociopolitical frameworks. Supported by data from my fieldwork, I will discuss contemporary portrayals of a mid-seventeenth-century woman, Hemeila, whose mother is recognized as a European Christian of Iberian origin. These two women are presently incorporated in different genealogical narratives from Southwestern Mauritania. The research dealt with in this article also relates to discussions of social hierarchy familiar to Mauritania’s Arabophone populations, with a particular focus on groups holding a “religious” (zwaya) status. Additionally, this article discusses the role of the anthropologist as a producer of social facts, which in this context has led to a direct intervention in the reassessment of Saharan historical traditions.  相似文献   
49.
This paper reviews the literature on the identification of bird bones found in European sites. Such a review is useful both to Quaternary palaeontologists and to zooarchaeologists attempting to identify bird bones. The publications are considered systematically. We stress that the published works should not be used for identification in isolation, but that a comparative collection is essential. © 1997 John Wiley & Sons, Ltd.  相似文献   
50.
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