Facies

Lithofacies code

Lithology description

Structures

Interpretation

Appearances

Fluvial

Gm

0.5 - 1 m thick, sandy matrix-supported, red brown intra-formational mudstone or grey to white-grey quartz pebbles conglomerates, pebbles are around 1 - 3 cm in diameter.

Massive to crudely bedding

Basal lag deposits

B04, B09, B10, B11

St

0.5 - 1.5 m thick, fine to medium-grained sandstones, containing grouped or solitary sets of trough cross laminations

Trough cross-bedding

Downstream migration of sinuous-crested dunes in fluvial channels (lower flow regime)

B04, B09, B10, B11

Sp

0.5 - 1 m thick, fine to medium-grained sandstone with solitary sets of planar cross laminations, better sorted and cleaner than St and lack mudstone or quartz pebbles

Planar cross-bedding

Transverse and linguoid sand bars in fluvial channels (lower flow regime)

B04, B09, B10, B11

Sh

0.2 - 0.5 m thick, red-brown, fine-grained sandstones with millimetre-scaled thin laminations.

Horizontal lamination

Flash floods deposits (lower flow regime)

B04, B09, B10, B11

Fl

0.2 - 1 m thick, argillaceous and micaceous, very fine-grained sandstones to siltstones.

Thin laminations with soft sediment deformation

Temporary floodplains and inactive or abandon channels

B04, B09, B10, B11

Fm

0.2 - 0.5 m thick, micaceous dark red-brown silty mudstones and mudstones

Massive bedding

Overbank

B04, B09, B10, B11

Aeolian

Sps

0.5 - 1 m thick, upper fine- to medium-grained, well sorted, well rounded sandstones. High visible porosity, friable nature and the absence of muddy or conglomeratic intra-clasts.

Pin-stripe lamination

Dune

B07, B08

Sw

1 - 2 m thick, very fine- to medium-grained sandstones, moderately to well sorted, locally developed mud desiccation, de-water structure, cross-bedding ripples and argillaceous streaks

Discontinuous wavy lamination with several local structures

Interdune with fluctuating dry and wet conditions

B07, B08