Arheološki les - njegove lastnosti in raziskovalni potencial

Katarina Čufar (Author), Vesna Tišler (Author), Željko Gorišek (Author)

Abstract

Raziskali smo osnovne fizikalne in kemične lastnosti arheološkega "mokrega" lesa z Ljubljanskega barja, ki se je ohranil v mokrih tleh ali pod vodo. Vzorci lesa hrasta (Quercus sp.), jesena (Fraxinus sp.), jelše (Alnus glutinosa), bukve (Fagus sylvatica) in javorja (Acer sp.) so bili ostanki kolov iz prazgodovinskih koliščarskih naselbin iz 3. in 4. tisočletja pr. n. š. Vlažnost lesa nad 500 % in drastičen upad gostote v primerjavi z normalnim lesom kaže na visoko stopnjo razkroja celičnih sten v lesu. Krčenje je močno presegalo krčenje normalnega lesa. Kemične analize arheološkega jesena so pokazale drastično povečan delež lignina in zmanjšan delež celuloze in hemiceluloz. Rezultati predstavljajo osnovo za izbiro primernih načinov ohranitve arheološkega lesa iz Ljubljanskega barja in drugih najdišč v Sloveniji.

Keywords

kolišča;arheološki les;dendrokronologija;arheologija mokrih tal;

Data

Language:	Slovenian
Year of publishing:	2002
Typology:	1.01 - Original Scientific Article
Organization:	UL BF - Biotechnical Faculty
Publisher:	Slovenska akademija znanosti in umetnosti: Znanstvenoraziskovalni center SAZU
UDC:	902.674:630*55
COBISS:	20278317
ISSN:	0570-8966
Parent publication:	Arheološki vestnik
Views:	1465
Downloads:	293
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Archaeological wood and its properties and research potential
Secondary abstract:	We studied basic physical and chemical properties of archaeological wood buried in the soil or preserved underwater in the Ljubljana Moor, Slovenia. The wood of oak (Quercus sp.), ash (Fraxinus sp.), alder (Alnus glutinosa), beech (Fagus sylvatica), and maple (Acer sp.) was selected from vertical pilesfrom 5 prehistoric pile dwellings from the 3rd and from the 4th millennium BC. Moisture content above 500% and a drastic decrease in basic density indicated a very high degree of wood deterioration. Shrinkage was much higher than that in recent wood. Chemical analyses of ashwood have shown adrastically increased amount of lignin and a reduced amount of cellulose and hemicelluloses. The results present basic knowledge for future planning of proper conservation treatment of the wood used in dendrochronological investigations.
Secondary keywords:	pile dwellings;archaeological wood;dendrochronology;wetland archaeology;
URN:	URN:NBN:SI
File type:	application/pdf
Type (COBISS):	Not categorized
Pages:	str. 69-75
Issue:	ǂ[Št.] ǂ53
Chronology:	2002
ID:	1746123