Document Type : Original Research Paper
Authors
1 M. Sc., Research Institute for Earth Sciences, Geological Survey of Iran, Tehran, Iran
2 Ph.D, Geological Survey of Iran, Tehran, Iran.
3 Assistant Professor, Research Institute for Earth Sciences, Geological Survey of Iran, Tehran, Iran.
4 M. Sc., Geological Survey of Iran, Tehran, Iran
5 Associate Professor, Research Institute for Earth Sciences, Geological Survey of Iran, Tehran, Iran.
Abstract
The Golbini section comprising of continuous succession of sediments ranging in age from Triassic – Jurassic formations, is situated at 35 Km north – east of Jajarm city. On the bases of studies on Dalichai Formation at this section and at about Middle Jurassic (Bathonian–Callovian boundary), 3 Member, 31 Genus and 13 species of Ammonite, has been identified. For paleomagnetic analysis, with the help of portable coring machine, the total number of 155 oriented core samples were collected from limestone and clayey– limestone of this section. Then the samples were prepared for paleomagnetic analysis at Environmental and Paleomagnetic Laboratory based at Geological Survey of Iran, Tehran, Iran. The conducted paleomagnetic analysis include measurement of NRM, Susceptibility, Thermal and AF demagnetizing, Virtual Geomagnetic Polarity (VGP), identification of normal and reversal magnetic polarities and calculation of sedimentation rate. The obtained paleomagnetic results then composed with GPTS and also with proposed Bathonian–Callovian boundaries in Russia and Germany. This comparison reveals that the magnetic polarity of Golbini section is co-relatable with GPTS and also with Bathonian–Callovian boundary in Russia and Germany.
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