this research is focused on facies distribution, palaeoecology and palaeoenvironment of the gurimember of the mishan formation in kuh-e shur and kuh-e kurdeh sections at the lar area, fars province.the guri member is composed of limestone, marly limestone and marl and the thickness at kuh-e shur andkuh-e kurdeh is about 72 and 110 meters, respectively. based on petrographical studies of 120 thi...

The main task of drilling the formation by the bit is done via scraping, crushing and grinding. Discharging the fluid from the bit nozzles is done with high pressure which assists to break the rocks. Different parameters affect the bit selection and design for each drilling formation, but the most important one is drillability that depends on hardness of the formation. In this paper, the design...

Cephalopod specimens assigned to the Argonautidae ( Obinautilus pulchra Kobayashi, 1954 and an unknown taxon) from two localities of Mishan Formation in Gohreh Khorgu sections, Bandar Abbas, southern Iran, are reported for first time Persian Gulf area. The co-existing foraminifera confirm middle Miocene age strata. Based on micropalaeontological data, previous Oligocene Obinautilus pulchra is e...

the main task of drilling the formation by the bit is done via scraping, crushing and grinding. discharging the fluid from the bit nozzles is done with high pressure which assists to break the rocks. different parameters affect the bit selection and design for each drilling formation, but the most important one is drillability that depends on hardness of the formation. in this paper, the design...

Three sections of Guri Member the Mishan Formation in Bandar Abbas area are investigated for foraminifera biozonation and lithostratigraphic correlation. The base conformably overlies Gachsaran (or Razak some sections), whereas top member is overlain by marls. Thirty-four foraminifer species identified prove age Burdigalian Gery Sheikh Anguran Burdigalian–Langhan range Bāz section. Two assembla...