List of Articles شاخصهای ژئومورفیک

• Open Access Article
  • Abstract Page
  • Full-Text
  
  1 - The Assessment of Tectonic Movements on Northeastern Slopes of Karkas Mountains By The Use of Geomorphic Indexes
  masomeh Rajabi somayyeh khosravi
  The Northeastern slope of Karkas Mountain is regarded as part of the Karkas mountain range which is located in south west of Natanz County and has spread along northwest-southeast directions. The study area has been placed in volcanic stretch of Urmia-Dokhtar (Tabriz-Ba More

  The Northeastern slope of Karkas Mountain is regarded as part of the Karkas mountain range which is located in south west of Natanz County and has spread along northwest-southeast directions. The study area has been placed in volcanic stretch of Urmia-Dokhtar (Tabriz-Bazman) area. Shrew and Schtoklin (quoted in Paroohan, 2001), have announced this area to be a broken and active axis with regards to volcanism (during upper Cretaceous-Eocene) and plutonic (Oligocene and Miocene).The main fault of the area is part of Qom-Zafreh fault being started from south west of Natanz and continues toward Zafreh. It is a right-lateral strike-out fault which has dug out quaternary alluviums in the northern Natanz.The displacement of water courses is usually right-oriented and the youngest fault is seen due to this mechanism in young alluvial fans of south west heights of Kashan.For the recognition of tectonic activities in the area under study we have used various geomorphologic indexes such as the mountain front congregation, length gradient of the river, the ration of valley bottom to its height and the morphometry of alluvial fans.Results obtained indicate that Northwestern slopes of the Karkas Mountains are still tectonically active. Manuscript profile