Ntawere Formation

[1] Several different facies are present in the Ntawere Formation, reconstructing a floodplain environment.

The coarsest facies are trough cross-bedded conglomeratic sandstone full of mineral concretions.

Another type of facies involves thick beds of mudstone interbedding with thinner layers of fine-grained sandstone, indicating alternating low- and high-energy water flow within the channels.

These types of thick mud/marl layers likely formed in more quiet parts of the floodplain isolated from turbulent channels.

[1] The floodplain was seemingly more active during the deposition of the Lower Ntaware Formation, as coarser sandstone channel fills are prevalent in that section while extensive mudstone layers are more common in the Upper Ntaware Formation.