wp3 – dendro-provenancingforseadiscovery.eu/.../nm1_dominguez_delmas_marta.pdf · marta...
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Marta Domínguez DelmásUniversidad de Santiago de Compostela - BIOAPLIC
Faculty of Forestry, dpt. BotanyForSEAdiscovery Network meeting Madrid 12-16 Jan 2015
WP3 – Dendro-provenancingESR9 - Development and implementation of a tree-ring data network
for the assessment of the date and provenance ofIberian ship-timbers
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Most exact dating method
Dendrochronology
AD 2008AD 1990AD 1970AD 1950
102030405060
Spring 2009
2
mm
1
3
4
5
Reference chronologyfor a specific site and species
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Dendrochronology
GaliciaData USC
Basque CountryData Arkeolan
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Dendro-provenancing
Domínguez-Delmás et al. 2013. Dendrochronological dating and provenancing of timbers from the Arade 1wreck, Portugal. International Journal of Nautical Archaeology
• Reference chronologies for the source area• Relative uncertain accuracy
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Retrospective extension of chronologies
Eckstein & Wrobel, 2008
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Historical timbers
>37 structuresOaks (Quercus spp.)
>30 structuresPines (Pinus spp.)
Current state dendrochronology in the IPLiving trees
Domínguez-Delmás et al., in revision. Forests, tree-rings and Cultural Heritage: current state and future prospects of dendro-archaelogy in the Iberian Peninsula. Journal of Archaeological Science
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Approach
1. Timber resources for shipbuilding in literature
Mid 18th-century• Motrico shipyard supplied by Devaforests
• Orio by Zarauz forests• Ugarrice (Pasajes) by Irun (100 oaks) and Rentería (300 coppiced oaks) forests
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Approach
2. Division of the Peninsula in watersheds
Domínguez-Delmás et al., in revision. Forests, tree-rings and Cultural Heritage: current state and future prospects of dendro-archaelogy in the Iberian Peninsula. Journal of Archaeological Science
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Approach
3. Selection of forests, major buildings, sawmills and renovation companies in the selected areas within the watersheds
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Photo: CODEX AiP
Photo: SEAS
Photo: CASC
Photo: Archaeonauta
Photo: RING
Shipwrecks researched by dendrochronology 2009-2013
Domínguez Delmás, M., 2014. Avances de la dendrocronología al servicio de la arqueología subacuática española: ¿qué información podemos extraer de la madera de los pecios?. Actas del I Congreso de Arqueología Náutica y Subacuática Española. MECD.
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Barceloneta I shipwreckClinker-built
Relative date by stratigraphy in mid-15th century
Photo: M. Soberon, CODEX Arqueologia i Patrimoni
Soberón Rodríguez et al. 2012. El Barceloneta I. Una embarcación medieval a tingladillo en Barcelona. ITSAS Memoria 7
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Barceloneta I – hull planks
• Radially split• 2-3 cm thick• Slow grown trees
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Barceloneta 1 – Framing elements
• Fast grown trees in juvenile period
• Drastic growth suppression afterwards
• Trees selected by shape and diameter
Rin
g w
idth
(mm
*10)
-2)
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Framing elements
Trees selected by shape and size
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From De Aranda y Antón (1990)
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El TriunfanteBuilt in El Ferrol, Spain 1754-56
Sunk in Cabo de Rosas 1793(De la Fuente 2006)
Carvel built
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Hull planks• Pinus sp.• Tangential
Ring
width (m
m*10‐
2 )
Nr of rings
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Marta Domínguez DelmásUniversidad de Santiago de Compostela - BIOAPLIC
Faculty of Forestry, dpt. BotanyForSEAdiscovery Network meeting Madrid 12-16 Jan 2015
Thank you!