Determination of depth in Mighan section, UpperDevonian (Famenian)layers

Category Paleontology and Stratigraphy
Group GSI.IR
Location 21th symposium on geosciences
Holding Date 24 May 2008

Abstract:
      With investigation deal with the macrofossils of the Middle Devonian in Mighan section NE Shahroud City, this macrofossils including of pyritized goniatites, small pyritized brachipods one centimeter in size and bellerophontites of Gastropods group.
   This assemblage fauna due to becoming rapidly small in size with respect to lower strata and it is pyretic are indication of a revived environment and relatively deep.
   With attention to mention horizon that reported from E & N of Iran, so that this horizon is indication of a relation to this basin during this time ,so that this goniatites horizon has spread throughout the north ,north _east & east of Iran.

General:
     With investigation deal with the macrofossile of the Middle Devonian in Mighan section NE Shahroud City, this macrofossils including of pyritized goniatites, small pyritized brachipods one centimeter in size and bellerophontites of Gastropods group.
   This assemblage fauna to becoming rapidly small in size with respect to lower strata and it is pyretic are indication of a revived environment and relatively deep.
   With attention to mention horizon that reported from E & N of Iran, so that this horizon is indication of a relation to this basin during this time, so that this goniatites horizon has spread throughout the north, north- east & east of Iran.

tags: SEMNAN