The STUDIA UNIVERSITATIS BABEŞ-BOLYAI issue article summary

The summary of the selected article appears at the bottom of the page. In order to get back to the contents of the issue this article belongs to you have to access the link from the title. In order to see all the articles of the archive which have as author/co-author one of the authors mentioned below, you have to access the link from the author's name.

 
       
         
    STUDIA GEOLOGIA - Issue no. 2 / 2007  
         
  Article:   BIOSTRATIGRAPHY OF THE CRETACEOUS DEPOSITS IN THE WESTERN TRANSYLVANIDES FROM AMPOI VALLEY (SOUTHERN APUSENI MOUNTAINS, ROMANIA).

Authors:  RAMONA BĂLC, ERIKA SUCIU-KRAUSZ, FLORIN BORBEI.
 
       
         
  Abstract:  The present study is an approach of the issues related to the biostratigraphy of the Western Transylvanides. The research provided exact age data for the Feneş Formation, Valea lui Paul Formation, Bozeş Formation and Râmeţi Formation. The age of the formations was established based on the calcareous nannoplankton assemblages in Barremian-Campanian range. The lithological features together with the new age data allowed us to modify the boundaries between formations; accordingly the knowledge on the structure of South Apuseni Mountains required changes, too. The new data also imply the modification of the existent geological maps of the region. Based on the identified calcareous nannoplankton assemblages, the following zones were defined: CC6 – Late Barremian, CC9 – Lower Cenomanian, CC14 – Late Coniacian and CC17, CC18, and CC19 for Campanian.  
         
     
         
         
      Back to previous page