Controlled Breaking of Mummified Wood For Use In Paleoenvironmental Analysis
The discovery of exceptionally well-preserved Paleogene wood fossils (ca. 55–53 Ma) within Canadian Arctic diamond-bearing kimberlites prompted a paleoclimatic study of the Paleocene-Eocene Transition. The samples are not petrified, but have been “mummified” by their inclusion in pyroclastic debris...
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Tree-Ring Society
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Online Access: | http://hdl.handle.net/10150/630489 https://doi.org/10.3959/1536-1098-69.2.87 |
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ftunivarizona:oai:repository.arizona.edu:10150/630489 2023-05-15T15:08:34+02:00 Controlled Breaking of Mummified Wood For Use In Paleoenvironmental Analysis Hook, B. Halfar, J. Gedalof, Z. Bollmann, J. 2013-07 http://hdl.handle.net/10150/630489 https://doi.org/10.3959/1536-1098-69.2.87 en eng Tree-Ring Society http://www.treeringsociety.org Hook, B., Halfar, J., Gedalof, Z., Bollmann, J., 2013. Controlled breaking of mummified wood for use in paleoenvironmental analysis. Tree-Ring Research 69(2):87-92. 2162-4585 1536-1098 doi:10.3959/1536-1098-69.2.87 http://hdl.handle.net/10150/630489 Tree-Ring Research Copyright © Tree-Ring Society. All rights reserved. Paleocene/Eocene transition non-permineralized fossil wood fragile wood surface preparation automated microscopic scanning tree-ring measurement wood anatomy dendrochronology paleoclimatology 2013 ftunivarizona https://doi.org/10.3959/1536-1098-69.2.87 2020-06-14T08:16:59Z The discovery of exceptionally well-preserved Paleogene wood fossils (ca. 55–53 Ma) within Canadian Arctic diamond-bearing kimberlites prompted a paleoclimatic study of the Paleocene-Eocene Transition. The samples are not petrified, but have been “mummified” by their inclusion in pyroclastic debris and still contain primordial wood material. However, preferential cellulose loss has rendered the wood very fragile, precluding the use of standard dendrochronological methods of surface preparation. Similar to archaeological charcoal, breaking the mummified wood allows superior visualization of tree-ring boundaries and wood anatomy, but often produces irregular surfaces making microscopic examination difficult. Therefore, a simple aluminum clamp was constructed to break radial wood transects in a controlled manner for the purpose of collecting dendrochronological and wood-anatomical data for paleoclimatic reconstructions. Because it does not require the use of chemical treatments or stabilizing resins, the wood remains chemically unaltered, allowing chemical and isotopic analyses to be undertaken. Future studies of fragile woods may benefit from this method of controlled breaking if sanding is ineffective. This item is part of the Tree-Ring Research (formerly Tree-Ring Bulletin) archive. For more information about this peer-reviewed scholarly journal, please email the Editor of Tree-Ring Research at editor@treeringsociety.org. Other/Unknown Material Arctic The University of Arizona: UA Campus Repository Arctic Tree-Ring Research 69 2 87 92 |
institution |
Open Polar |
collection |
The University of Arizona: UA Campus Repository |
op_collection_id |
ftunivarizona |
language |
English |
topic |
Paleocene/Eocene transition non-permineralized fossil wood fragile wood surface preparation automated microscopic scanning tree-ring measurement wood anatomy dendrochronology paleoclimatology |
spellingShingle |
Paleocene/Eocene transition non-permineralized fossil wood fragile wood surface preparation automated microscopic scanning tree-ring measurement wood anatomy dendrochronology paleoclimatology Hook, B. Halfar, J. Gedalof, Z. Bollmann, J. Controlled Breaking of Mummified Wood For Use In Paleoenvironmental Analysis |
topic_facet |
Paleocene/Eocene transition non-permineralized fossil wood fragile wood surface preparation automated microscopic scanning tree-ring measurement wood anatomy dendrochronology paleoclimatology |
description |
The discovery of exceptionally well-preserved Paleogene wood fossils (ca. 55–53 Ma) within Canadian Arctic diamond-bearing kimberlites prompted a paleoclimatic study of the Paleocene-Eocene Transition. The samples are not petrified, but have been “mummified” by their inclusion in pyroclastic debris and still contain primordial wood material. However, preferential cellulose loss has rendered the wood very fragile, precluding the use of standard dendrochronological methods of surface preparation. Similar to archaeological charcoal, breaking the mummified wood allows superior visualization of tree-ring boundaries and wood anatomy, but often produces irregular surfaces making microscopic examination difficult. Therefore, a simple aluminum clamp was constructed to break radial wood transects in a controlled manner for the purpose of collecting dendrochronological and wood-anatomical data for paleoclimatic reconstructions. Because it does not require the use of chemical treatments or stabilizing resins, the wood remains chemically unaltered, allowing chemical and isotopic analyses to be undertaken. Future studies of fragile woods may benefit from this method of controlled breaking if sanding is ineffective. This item is part of the Tree-Ring Research (formerly Tree-Ring Bulletin) archive. For more information about this peer-reviewed scholarly journal, please email the Editor of Tree-Ring Research at editor@treeringsociety.org. |
author |
Hook, B. Halfar, J. Gedalof, Z. Bollmann, J. |
author_facet |
Hook, B. Halfar, J. Gedalof, Z. Bollmann, J. |
author_sort |
Hook, B. |
title |
Controlled Breaking of Mummified Wood For Use In Paleoenvironmental Analysis |
title_short |
Controlled Breaking of Mummified Wood For Use In Paleoenvironmental Analysis |
title_full |
Controlled Breaking of Mummified Wood For Use In Paleoenvironmental Analysis |
title_fullStr |
Controlled Breaking of Mummified Wood For Use In Paleoenvironmental Analysis |
title_full_unstemmed |
Controlled Breaking of Mummified Wood For Use In Paleoenvironmental Analysis |
title_sort |
controlled breaking of mummified wood for use in paleoenvironmental analysis |
publisher |
Tree-Ring Society |
publishDate |
2013 |
url |
http://hdl.handle.net/10150/630489 https://doi.org/10.3959/1536-1098-69.2.87 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
http://www.treeringsociety.org Hook, B., Halfar, J., Gedalof, Z., Bollmann, J., 2013. Controlled breaking of mummified wood for use in paleoenvironmental analysis. Tree-Ring Research 69(2):87-92. 2162-4585 1536-1098 doi:10.3959/1536-1098-69.2.87 http://hdl.handle.net/10150/630489 Tree-Ring Research |
op_rights |
Copyright © Tree-Ring Society. All rights reserved. |
op_doi |
https://doi.org/10.3959/1536-1098-69.2.87 |
container_title |
Tree-Ring Research |
container_volume |
69 |
container_issue |
2 |
container_start_page |
87 |
op_container_end_page |
92 |
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1766339911073398784 |