Nam Chung loamy sand

Material category:

Soil / Soil based (organic/mineral)

Identification number:

22-1000-002-a

Sample produced by:

TAL-L

Sample date:

10 Jan 2022 (Extracted)

Sample condition:

Intact

Site-driven material

Nam Chung is a coastal village in the northeastern New Territories close the Startling Inlet or Sha Tau Kok Hoi (沙頭角海). Located between tidal mudflats and fish ponds that were converted from arable farmland in the 1970s, the village and its surroundings are a stopover station for many migratory birds. The underlying and exposed sedimentary rock of this area is Hong Kong’s oldest, formed some 400 million years ago, and includes conglomerate, sandstone, and siltstone.

Location of Sample Extraction:

Nam Chung Country Trail, Pat Sin Leng, Hong Kong

22.514469, 114.207664
Surface Condition:

Hard Setting

Depth of sample extraction:

<20 cm

Slope at extraction point:

< 35°

Land Use:

Residential/ commercial/ government/ institutional/ community lot

State:

Solid

Geology of parent material:

Upper part: purplish to brick red sandstone and siltstone, lower part: conglomerate and greyish white sandstone

Color:

7.5YR 4/2

Soil Structure

Organic Matter: 0.0 %

Coarse: 41.0 %

Sand: 71.0 %

Silt: 29.0 %

Clay: 0.0 %