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Information Journal Paper

Title

THE STUDY OF SEDIMENTARY ENVIRONMENTS IN DIFFERENT PARTS OF THE NAYBAND FORMATION, CENTERAL IRAN

Writers

NAJAFIAN B. | JAFARIAN M.A.

Pages

 Start Page 77 | End Page 88

Abstract

 The NAYBAND FORMATION in Central Iran, has a very a very good extension with different SEDIMENTARY ENVIRONMENTs. By Systematic study of the NAYBAND FORMATION in the type section at North of Nayband village and 11 other sections in Central IRAN (ALI ABAD, PARVADEH, KOH-E-TIZI, BOLBOLO-E-IEH, MARAVAND, BAGHAR ABAD-EMAHALLAT, SALLAKH, CHASHMEH SOUR, MOUR-CHEH-KHORT & CHAL SEFIDE KASHAN )10 SEDIMENTARY ENVIRONMENTs has been proposed.The lower contacts of the NAYBAND FORMATION is usually on the Shotori Formation, with a disconformities in between and The upper contact gradually changes to Shemshak Formation, and in some areas the differentiation between the Two Formations is very difficult, So they are collectively called Shemshak group.The CIMMERIAN orogenesis activities and uplifting of different basin parts, has made the SEDIMENTARY ENVIRONMENTs of the NAYBAND FORMATION very versatile, which consist of: GELKAN member is mainly in on stormy environment ( SEDIMENTARY ENVIRONMENT 2), HOZE-E-SHIEKH member is mainly in a lowenergy environment (S.E.1), Bidestan member is mainly composed of abundant deltoid channels (S.E.4), HOZE-E-KHAN member is mainly composed of reefal sedimentations (S.E.8) and Ghadir member is formed in laons.

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