compaction fold

According to the features and genesis of fold structure in 5- 2# coal bed,has divided fold into subordinate folds and compaction fold.

按分布规律和成因将井田内５－２煤层中发育的褶皱构造分为派生褶皱和差异压实褶皱，其结论对煤矿生产有一定的指导意