Late Carboniferous allochthonous coal is characterized by silty grains and shows similar turbidity sequence, without strike_lenticular structure commonly shown in in_situ coal.

• 河南宜洛煤田晚石炭世太原组中的异地煤，不存在通常在煤层中见到的那种条带状-透镜状结构，而呈现出是一种粉粒状的、具有浊积层序特征的煤层。