Spectral Discrimination of Archaeological Sites Previously Occupied by Farming Communities Using In Situ Hyperspectral Data

Table 4

Summary statistics for the concentration of different chemical elements within midden deposits.

Elements	1^st qu.	Median	3^rd qu.	Mean	Standard deviation	Coefficient of variation
Ag	0.5	0.5	0.5	0.5	0.0	0.0
Al	4.0	5.2	5.6	4.8	0.9	19.7
As	5.0	5.0	5.0	5.0	0.0	0.0
Ba	490.0	620.0	645.0	570.0	87.9	15.4
Be	0.9	1.1	1.2	1.1	0.2	14.7
Bi	2.0	2.0	2.0	2.0	0.0	0.0
Ca	2.8	3.3	3.6	3.2	1.1	34.7
Cd	0.5	0.5	0.5	0.5	0.0	0.0
Co	13.5	15.0	15.0	13.6	2.9	21.1
Cr	37.0	115.0	120.0	87.5	41.8	47.8
Cu	38.5	43.0	80.5	60.5	34.4	56.9
Fe	2.9	3.2	3.2	3.1	0.5	15.0
Ga	10.0	10.0	10.0	11.8	4.0	34.2
K	1.2	1.7	1.7	1.5	0.3	23.1
La	20.0	30.0	30.0	26.4	5.0	19.1
Mg	1.0	1.0	1.5	1.3	0.5	39.3
Mn	510.0	526.0	733.0	620.2	194.3	31.3
Mo	1.0	1.0	1.0	1.0	0.0	0.0
Na	0.7	1.0	1.1	0.9	0.2	19.0
Ni	31.5	46.0	61.0	46.1	15.0	32.6
P	1865.0	2020.0	3210.0	2552.7	1091.3	42.7
Pb	10.5	15.0	16.5	13.7	4.9	35.4
S	0.0	0.0	0.0	0.0	0.0	37.0
Sb	5.0	5.0	5.0	5.0	0.0	0.0
Sc	8.0	9.0	9.0	8.4	1.0	12.3
Sr	325.0	410.0	496.0	425.9	182.6	42.9
Th	20.0	20.0	20.0	20.0	0.0	0.0
Ti	0.4	0.7	0.7	0.6	0.2	28.1
Tl	10.0	10.0	10.0	10.0	0.0	0.0
U	10.0	10.0	10.0	10.0	0.0	0.0
V	86.5	93.0	97.5	92.1	17.8	19.4
W	10.0	10.0	10.0	10.0	0.0	0.0
Zn	57.5	62.0	115.5	88.3	47.3	53.6