- A tube containing 6 grams of alluvial gold from the Cernavaia River also has a bicolor character.
- The fertile soil is fine-textured, alluvial, loamy and free from boulders.
- Silicate minerals constitute most alluvial sediment on Earth.
- These pioneer prospectors practiced surface mining, obtaining gold from the alluvial deposits called placers.
- Above these sedimentary rocks is a sequence of interbedded alluvial floodplain deposits and palaeosols.