BAIZHUYUAN log 1-2 m

This page authored by Steve Kershaw

Changhsingian limestones just below the base of the microbialite, showing the diverse  skeletal remains immediately prior to the mass extinction.

Note that the contact between the Changhsingian limestones and the microbialite is marked by a stylolite (see also Dongwan site for photos), but the contact is bed-parallel. There is no  confirmation of an erosion surface here.

Go to Baizhuyuan main pageGA15_Baizhuyuan_Main.html
Go to Microbialite Atlas Contents PageGA3_Microb_Contents.html
Go to PTB map pageGA5_P-T_Boundary.htmlGA5_P-T_Boundary.htmlshapeimage_3_link_0