Caspian Sea paleofluctuation reconstructing during the Quaternary period

Subject Areas :

Homayoun Khoshravan ¹ , Somayeh Rouhanizadeh ²

1 - استادیار موسسه تحقیقات آب
2 - کارشناس پژوهشی مرکز ملی مطالعات و تحقیقات دریای خزر

Received: 2016-09-07 Accepted : 2016-09-07 Published : 2011-03-21

Keywords: Caspian Sea, fluctuation, Quaternary, Gastropod,

Abstract :

The reconstruction of the Caspian Sea water level fluctuations in the Quaternary period is the main objectives ofthis research. Thus, with the study of biofacies on 254 cores samples associate to exploration wells (Mazandaran1 and Gorgan 3 - A) and 150 sediment samples which have been collected from depths of 10 to 800 meters fromthe sea bed of the Caspian Sea bioindicators and sedimentary indexes were identified. The results of studies ofthe Quaternary sediments showed that gastropod species are the most important biological evidence for thereconstruction of sea level changing of the Caspian Sea. Also there are alternatively fluctuations in this regionthat were affected by global climatology impact.