Air-discharge pits on the Yellow River delta plain

A New Unusual Ice-induced Sedimentary Structure: the Silt Mushroom

“…These interruptions cause a lot of unusual sedimentary environments and sedimentary structures to be formed. In the early 2000’s, many sedimentologists undertook a large degree of research upon the Yellow River, obtaining many accomplishments45678910111213141516, including the discovery some ice-induced sedimentary structures1718192021222324. However since that period, because of low economic profits, few studies have been undertaken on the Yellow River.…”

“…The recording taken at the Lijin Hydrometric Station in 1987 shows that the sediments consisted of; less than 10% fine sand, 50–70% silt and 30–40% clay14. For our granulometric analysis, we collected six samples from our study areas in which ice-induced sedimentary structures have developed, all locations were on a bed material that consisted predominantly of fine silt, with a grain size distribution between 0.032 and 0.128 mm (Fig.…”

“…For our granulometric analysis, we collected six samples from our study areas in which ice-induced sedimentary structures have developed, all locations were on a bed material that consisted predominantly of fine silt, with a grain size distribution between 0.032 and 0.128 mm (Fig. 4)14. Generally, the constitution of ice-induced silt mushrooms is of poorly-sorted silt, sometimes with small muddy lamina.…”