Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 1 Relative mass percentages of elements, tentative true mass percentages of Fe, and ash contents in Japanese cedar umoregi wood samples

From: Coloring mechanisms of ancient buried wood: Japanese cedar trees excavated from the foothills of Mt. Chokai

Sample	UW1-1	UW1-2	UW2
C_ash%	0.57	0.76	0.91
TM_Fe	0.33	0.41	0.26
Mg	1.9	3.5	1.3
Al	1.7	1.5	2.1
Si	7.8	6.2	8.1
S	1.3	8.2	0.8
K	0.9	0.9	1.6
Ca	27.1	24.5	56.7
Ti	0.3	0.3	0.4
Cr	0.1	0.1	0.1
Mn	0.7	0.6	0.1
Fe	57.5	53.6	28.0
Ni	0.3	0.3	0.4
Cu	0.1	0.1	0.0
As	0.1		0.1
Sr	0.2	0.1	0.2

Blank space implies “not detected”
C_ash is ash content of umoregi wood
TM_Fe is a tentative true mass percentage of Fe

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