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Geoarchaeology 21 (2)
Title
The title of the publication or report
Title:
Geoarchaeology 21 (2)
Series
The series the publication or report is included in
Series:
Geoarchaeology
Volume
Volume number and part
Volume:
21 (2)
Publication Type
The type of publication - report, monograph, journal article or chapter from a book
Publication Type:
Journal
Editor
The editor of the publication or report
Editor:
Rolfe D Mandel
Paul Goldberg
E A (III) Bettis
Publisher
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Publisher:
John Wiley & Sons Ltd
Year of Publication
The year the book, article or report was published
Year of Publication:
2006
Source
Where the record has come from or which dataset it was orginally included in.
Source:
BIAB (The British & Irish Archaeological Bibliography (BIAB))
Relations
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Relations:
URI:
http://onlinelibrary.wiley.com/doi/10.1002/gea.v21:2/issuetoc
Created Date
The date the record of the pubication was first entered
Created Date:
29 Nov 2006
Please click on an Article link to go to the Article Details.
Article Title
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Author / Editor
Page
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Abstract
Prehistoric gold markers and environmental change; a two-age system for standing stones in western Ir...
Kathryn R Moore
155 - 170
The paper examines the Murrisk Peninsula in southwest County Mayo, a target for gold exploration in Ireland, of which the most productive areas include the Cregganbaun Shear Zone and Cregganbaun Quartzite Belt on Croagh Patrick, both geologically related to Iapetus closure; gold is concentrated in alluvial deposits of river systems draining these areas. The author suggests that a comparison of gold occurrences with the location of prehistoric stone monuments reveals that simple standing-stone monuments, though isolated from other monument types, correlate with alluvial gold. South of the Murrisk Peninsula in Connemara, isolated standing stones are associated with a wide range of mineral resources and with other monuments. It is argued that dating of the stones relative to blanket-bog expansion and coastal landform changes indicates that standing stones were raised as markers of gold placer deposits before a climatic deterioration at 1200 BC; Late Bronze Age monuments with a ceremonial purpose are more complex and include stone alignments.
Effect of fire on phytolith coloration
Jeff F Parr
171 - 185
Dark-coloured phytoliths are often found preserved in paleosols and archaeological sediments. Some practitioners believe these darkened phytoliths provide evidence of fire histories, while others suggest alternative reasons for their occurrence. The study examines the effect of fire on phytolith appearance and discusses the extent to which colour may be used as proxy evidence for fire. The results of the study demonstrate that under oxidative conditions of open-air fire, the colour of phytoliths can be altered, although dark-coloured phytoliths also occur naturally in some unburned plant species. Despite some overlap observed between burned and unburned colour in phytoliths, clear differences are apparent in the way this colour appears optically. In particular, transparent and opalescent qualities were found to occur in nature as opposed to a dull opaque appearance of charred phytoliths. Although fire-induced colour change is probably limited to a portion of the phytolith assemblage, phytolith colour remains a tool that can be confidently used to indicate the presence of fire in various sedimentary contexts.
Handbook of stable isotope analytical techniques, volume 1
F D Pate
197 - 198