Aspects of the Petrology and Geochemistry of Greenstones: with special reference to SW England and Wales
The use of texture, petrology and geochemistry of Neolithic greenstone hand axes, to determine provenance, is well established. However, as many UK greenstones are essentially meta-dolerites (mildly metamorphosed medium-grained basic rocks) it is often necessary to consider the type and degree of al...
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doaj-91d64660ceeb4ff888847be8ea86a8422020-11-24T23:23:55ZengUniversity of YorkInternet Archaeology1363-53872009-09-012610.11141/ia.26.14 Aspects of the Petrology and Geochemistry of Greenstones: with special reference to SW England and WalesP.A. Floyd0Keele UniversityThe use of texture, petrology and geochemistry of Neolithic greenstone hand axes, to determine provenance, is well established. However, as many UK greenstones are essentially meta-dolerites (mildly metamorphosed medium-grained basic rocks) it is often necessary to consider the type and degree of alteration superimposed on the primary igneous mineralogy to establish different petrological groups of axes. In particular, alteration and texture can be highly variable in any one large outcrop that might have been used for the manufacture of axes. Similarly, geochemical fingerprinting of axes and subsequent comparison with known outcrops will only be successful if sufficient chemical data are available from any suspected source region when the full range of natural variation has been ascertained.http://intarch.ac.uk/journal/issue26/floyd_index.htmlarchaeologyGreenstonemeta-doleritepetrological variationgeochemical fingerprintinglow-grade alterationaxe-sourcesSW EnglandWales |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
P.A. Floyd |
spellingShingle |
P.A. Floyd Aspects of the Petrology and Geochemistry of Greenstones: with special reference to SW England and Wales Internet Archaeology archaeology Greenstone meta-dolerite petrological variation geochemical fingerprinting low-grade alteration axe-sources SW England Wales |
author_facet |
P.A. Floyd |
author_sort |
P.A. Floyd |
title |
Aspects of the Petrology and Geochemistry of Greenstones: with special reference to SW England and Wales |
title_short |
Aspects of the Petrology and Geochemistry of Greenstones: with special reference to SW England and Wales |
title_full |
Aspects of the Petrology and Geochemistry of Greenstones: with special reference to SW England and Wales |
title_fullStr |
Aspects of the Petrology and Geochemistry of Greenstones: with special reference to SW England and Wales |
title_full_unstemmed |
Aspects of the Petrology and Geochemistry of Greenstones: with special reference to SW England and Wales |
title_sort |
aspects of the petrology and geochemistry of greenstones: with special reference to sw england and wales |
publisher |
University of York |
series |
Internet Archaeology |
issn |
1363-5387 |
publishDate |
2009-09-01 |
description |
The use of texture, petrology and geochemistry of Neolithic greenstone hand axes, to determine provenance, is well established. However, as many UK greenstones are essentially meta-dolerites (mildly metamorphosed medium-grained basic rocks) it is often necessary to consider the type and degree of alteration superimposed on the primary igneous mineralogy to establish different petrological groups of axes. In particular, alteration and texture can be highly variable in any one large outcrop that might have been used for the manufacture of axes. Similarly, geochemical fingerprinting of axes and subsequent comparison with known outcrops will only be successful if sufficient chemical data are available from any suspected source region when the full range of natural variation has been ascertained. |
topic |
archaeology Greenstone meta-dolerite petrological variation geochemical fingerprinting low-grade alteration axe-sources SW England Wales |
url |
http://intarch.ac.uk/journal/issue26/floyd_index.html |
work_keys_str_mv |
AT pafloyd aspectsofthepetrologyandgeochemistryofgreenstoneswithspecialreferencetoswenglandandwales |
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