First Steps into the Microscopic Metrical Characterization of Bone Weathering in a Sample of Modern Guanaco (<i>Lama guanicoe</i>) from Southern Patagonia, Argentina : Implications for Patterns of Intraosseous Differential Preservation

In many southern Patagonia archaeological bone assemblages deposited in open-air settings, a remarkable difference in preservation between shafts and epiphyses of guanaco (Lama guanicoe) long bones, leading to an overrepresentation of the latter, has been found. It has been suggested that, in dynami...

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Autores principales: Morales, Natalia, Barrientos, Gustavo, Belardi, Juan Bautista
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/103501
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id I19-R120-10915-103501
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Patagonia
Lama Guanicoe
Long bones
Differential intraosseous preservation
Weathering
spellingShingle Ciencias Naturales
Patagonia
Lama Guanicoe
Long bones
Differential intraosseous preservation
Weathering
Morales, Natalia
Barrientos, Gustavo
Belardi, Juan Bautista
First Steps into the Microscopic Metrical Characterization of Bone Weathering in a Sample of Modern Guanaco (<i>Lama guanicoe</i>) from Southern Patagonia, Argentina : Implications for Patterns of Intraosseous Differential Preservation
topic_facet Ciencias Naturales
Patagonia
Lama Guanicoe
Long bones
Differential intraosseous preservation
Weathering
description In many southern Patagonia archaeological bone assemblages deposited in open-air settings, a remarkable difference in preservation between shafts and epiphyses of guanaco (Lama guanicoe) long bones, leading to an overrepresentation of the latter, has been found. It has been suggested that, in dynamic sedimentary deposits like those investigated in this region, the observed pattern is mainly related to subaerial weathering or to a combination of weathering and abrasion preferentially affecting long bone shafts, processes that may have little relationship with bone mineral density (BMD). In order to investigate in more detail the relationship between weathering and bone mineral density (BMD) and cortical thickness in guanaco long bones, a microscopic (low magnification) metrical analysis of partial cross-sections from a sample of modern radii-ulnae with a various degrees of weathering was performed. Overall, the obtained results suggest that subaerial weathering can suffice to explain the observed archaeological pattern of differential intraosseous preservation, although this inference should be further supported with data from a larger sample including other long bones as well as a more complete record of the weathering sequence.
format Articulo
Articulo
author Morales, Natalia
Barrientos, Gustavo
Belardi, Juan Bautista
author_facet Morales, Natalia
Barrientos, Gustavo
Belardi, Juan Bautista
author_sort Morales, Natalia
title First Steps into the Microscopic Metrical Characterization of Bone Weathering in a Sample of Modern Guanaco (<i>Lama guanicoe</i>) from Southern Patagonia, Argentina : Implications for Patterns of Intraosseous Differential Preservation
title_short First Steps into the Microscopic Metrical Characterization of Bone Weathering in a Sample of Modern Guanaco (<i>Lama guanicoe</i>) from Southern Patagonia, Argentina : Implications for Patterns of Intraosseous Differential Preservation
title_full First Steps into the Microscopic Metrical Characterization of Bone Weathering in a Sample of Modern Guanaco (<i>Lama guanicoe</i>) from Southern Patagonia, Argentina : Implications for Patterns of Intraosseous Differential Preservation
title_fullStr First Steps into the Microscopic Metrical Characterization of Bone Weathering in a Sample of Modern Guanaco (<i>Lama guanicoe</i>) from Southern Patagonia, Argentina : Implications for Patterns of Intraosseous Differential Preservation
title_full_unstemmed First Steps into the Microscopic Metrical Characterization of Bone Weathering in a Sample of Modern Guanaco (<i>Lama guanicoe</i>) from Southern Patagonia, Argentina : Implications for Patterns of Intraosseous Differential Preservation
title_sort first steps into the microscopic metrical characterization of bone weathering in a sample of modern guanaco (<i>lama guanicoe</i>) from southern patagonia, argentina : implications for patterns of intraosseous differential preservation
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/103501
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