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Table 3 Chemical composition of the loess from Yaozhou kiln site (wt%)

From: Correlation study on firing temperature and color of plain pottery excavated from the Tang Dynasty tomb of Liu Jing in Shaanxi, China

Sample

Na2O

MgO

Al2O3

SiO2

K2O

CaO

TiO2

Fe2O3

Loess

0.55

1.85

15.51

65.69

2.59

9.11

0.52

4.19

(0.04)

(0.12)

(0.29)

(0.77)

(0.20)

(0.50)

(0.23)

(0.84)

  1. The value in the bracket is the standard deviation which is calculated by ten points of the loess from Yaozhou kiln site