Palynological analysis from the Shishtu 2 Member of the Shishtu Formation located in the Howz-e-Dorah area (Southeast Tabas, Central Iran Basin) suggests a middle Tournaisian-late Viséan age for this rock unit. The Shishtu 2 Member consists of shale, sandstone, dolostone and limestone. Three palynological assemblages are recognized and mainly correlated with the miospore biozones of Northern Gondwana. A microfloristic comparison with other sections in Western Gondwana (South America) is also proposed. We identify a sedimentary hiatus between Shishtu 1 and Shishtu 2 members. Our findings suggest that the Mush horizon is the basal part of the Shishtu 2 Member, unlike the Iranian literature where it is considered as the uppermost part of the Shishtu 1 Member.
The palynostratigraphy of the Lower Carboniferous (middle Tournaisian-late Viséan) Shishtu Formation from the Howz-e-Dorah section, southeast Tabas, Central Iranian Basin
SPINA, AMALIA;CIRILLI, Simonetta;
2016
Abstract
Palynological analysis from the Shishtu 2 Member of the Shishtu Formation located in the Howz-e-Dorah area (Southeast Tabas, Central Iran Basin) suggests a middle Tournaisian-late Viséan age for this rock unit. The Shishtu 2 Member consists of shale, sandstone, dolostone and limestone. Three palynological assemblages are recognized and mainly correlated with the miospore biozones of Northern Gondwana. A microfloristic comparison with other sections in Western Gondwana (South America) is also proposed. We identify a sedimentary hiatus between Shishtu 1 and Shishtu 2 members. Our findings suggest that the Mush horizon is the basal part of the Shishtu 2 Member, unlike the Iranian literature where it is considered as the uppermost part of the Shishtu 1 Member.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
