Table 1 Geological characteristics of the units in the outcrop
From: Spatial segmentation of Jiali Fault’s Holocene activity in the southeastern Tibetan Plateau
Unit | Sedimentary facies | Subunit | Material | Geological characteristics |
|---|---|---|---|---|
A | Alluvium | / | Silty sand | Dark brown silty sandy layer containing some brown clay and small angular gravel particles, with a small average particle size and high moisture content. |
P&P’ | Proluvium | / | Gravel layer | Poorly sorted gravel layer composed of a mixture of rounded and angular gravels. Overall, the gravel layer exhibits poor roundness. The arrangement of the gravel is chaotic and not directional. |
S&S’ | Barrier lake facies | / | Mud clay | Greyish brown mud clay layer, with a very small average particle size and high moisture content. |
D&D’ | Barrier lake facies | 1 | Fine sand | Grey fine sand, large average particle size and low moisture content. |
2 | Silty sand | Yellow‒brown silty sand, small average particle size and high moisture content. | ||
3 | Fine sand | Grey fine sand, large average particle size and low moisture content, with some fractures filled by yellow‒brown silty sand. | ||
4 | Silty sand | Yellow‒brown silty sand, small average particle size and high moisture content. | ||
5 | Fine sand | Grey fine sand, large average particle size and low moisture content. | ||
6 | Silty sand | Yellow‒brown silty sand, small average particle size and high moisture content, containing some large angular gravel particles. | ||
7 | Fine sand | Grey fine sand, large average particle size and low moisture content. | ||
8 | Silty sand | Yellow‒brown silty sand, small average particle size and high moisture content, containing some small angular gravel particles. |
