|mhorn||Дата: Monday, 02.11.2009, 22:34 | Сообщение # 1|
|Pimenov M.V., Glinskih L.A., Guzhikov A.Yu., Mihailov A M, Rogov M.A., Tesakova E.M. (2009) About possible reflection of paleocological conditions in petromagnesism of the Callovian - Oxfordian deposits of Dubki section (Saratov) // Bull. Saratov State Univ. New series. Earth Sciences. No.1. P.70-75. [in Russian] |
As a result of the complex analysis of petromagnetic, micro- and macrofaunistic data of deposits on the Callovian - Oxfordian boundary brds of Dubki section (Saratov), which is one of candidates for the Oxfordian GSSP, it is established significant correlation between magnetic susceptibility variations and changes of an abundance, a specific variety ot ostracods, foraminiferes and ammonites. As a possible explanation of the revealed interrelations it is offered the variant of
paleocological reconstruction, considering factors of change of a sea level and concentration of organic matter in the deposits.
Middle Jurassic - Lower Cretaceous ammonites & aptychi