The mid-belt form flowage fold, from the mid-belt to margin belt, the structural types are successively sheath fold; A-fold; B-fold.

该带中央为揉流褶皱带，往两侧至边缘依次出现鞘褶皱、a型褶皱、b型褶皱。

youdao

The mid-belt form flowage fold, from the mid-belt to margin belt, the structural types are successively sheath fold; A-fold; B-fold.

该带中央为揉流褶皱带，往两侧至边缘依次出现鞘褶皱、a型褶皱、b型褶皱。

youdao