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Table 1 Layer stratigraphy and components of cross sections in Fig. 2

From: Degradation of emerald green: scientific studies on multi-polychrome Vairocana Statue in Dazu Rock Carvings, Chongqing, China

Sam.

Layer

Colour

Identified components

Sam.

Layer

Colour

Identified components

CS1

Blue

1

Blue

Ultramarine blue

CS5

Green

1

Green

Emerald green, lavendulan, mimetite, cerussite, gypsum, barite, whewellite

2

Gray

Gypsum, calcite, quartz, clay

2

Green

Lavendulan, mimetite, cerussite, gypsum, barite, whewellite

3

Blue

Ultramarine blue

3

Gray

Gypsum, calcite, quartz, clay

4

Gray

Gypsum, calcite, quartz, clay

4

Blue

Ultramarine Blue

5

Blue

Ultramarine blue

5

Gray

Gypsum, calcite, quartz, clay

6

Gray

Gypsum, calcite, quartz, clay

6

Yellow

Orpiment

7

Red

Vermilion

7

Gray

Sandstone substrate

8

Gray

Sandstone substrate

   

CS10

Red

1

Red

Vermilion

CS11

Red

1

Red

Vermilion

2

Orange

Red lead

2

Orange

Red lead

3

Gray

Gypsum, calcite, quartz, clay

3

Gray

Quartz, clay

4

Black

Carbon, calcite, lead white

4

Green

Lavendulan

5

Gray

Gypsum, calcite, lead white, clay

5

Gray

Quartz, clay

6

Orange

Red lead, vermilion

6

Orange

Red lead

7

Gray

Sandstone substrate

7

Gray

Sandstone substrate

CS13

Gold

1

Gold

Gold layer (Au 99.3 wt %, Ag 0.7 wt %)

CS16

White

1

White

Cerussite

2

Red

Ground layer

2

Gray

Quartz, clay

3

Black

Ground layer

3

Orange

Red lead

4

Gray

Ground layer

4

Gray

Quartz, clay

5

Gray

Quartz, clay

5

White

Cerussite, gypsum, calcite, quartz, clay

6

Yellow

Orpiment

6

Green

Malachite, atacamite

7

Gray

Quartz, clay

7

Gray

Sandstone substrate

8

Red

Vermilion, red lead

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