what are the characteristics of shale
According to the size of the gravel, the conglomerates are divided into boulders (> 256 mm) Rock, gravel (64 to 256 mm) conglomerate,
The debris in the conglomerates is mainly cuttings, with only a small amount of mineral debris, sand, silt, clay and chemical precipitates
pebble (4 to 64 mm) conglomerate and fine gravel (2 to 4 megale and biologically disturbed limestone) conglomerates