Palynofacies and Paleoenvironment of the Gurpi Formation at Kharameh Section
Subject Areas :نرگس KHoshkhabar 1 , ابراهیم GHasemi nejad 2 , معصومه Sohrabi-Molayosefi 3
1 - دانشجوی کارشناس ارشد چینه وفسیل شناسی، دانشگاه آزاد اسلامی،واحدعلوم وتحقیقات ،تهران
2 - عضو هیئت علمی دانشگاه تهران
3 - عضو هیئت علمی دانشگاه آزاد اسلامی،واحد اسلام شهر
Keywords: Fars, Gurpi Formation, Paleoecology, palinologic facies,
Abstract :
Gurpi formation of kharame section is located in 84 km east of Shiraz, classified to 5 zone by using offoraminifers. Because palinomorphs aren't preserve completely. Presence of Globotruncana elevate in thebase of section was showed early Campanian for Gurpi formation. The upper boundary of Gurpiformation was determined of Tarbour formation by Gunsserina gansseri.For Palynofacies investigative on the Gurpi formation Tyson (1993) Diagram was used which is based onAOM (Amorphous Organic Matter), Phytoclasts (Spore, Pollen, wood particle) and Palynomorphs (Dinoflagellate, Acritarchs and chitinous inner linig of foraminifera) percentage. Based on these, threePalynofacies were distinguished and differentiated showing a Palaeoenvironment ranging from marginaldysoxic – anoxic to distal suboxic – anoxic basin.As marine Palynomorphs are not well-preserved they could not be used for biozonation. Zonation and agedating were then based on foraminifera based on which five biozones showing in general an age of EarlyCampanian-Early Maastrichtian was determined for the formation
