عنوان مقاله [English]
نویسندگان [English]چکیده [English]
Review of Drainage Network Morphomerty on Bidkhan Volcano (Kerman Province) Abstract: Volcanic cones are among the simplest volcanic landforms. They are built by ejecta from a volcanic vent, piling up around the vent in the shape of a cone with a central crater. Volcanic cones are of different types, depending upon the nature and size of the fragments ejected during the eruption Bidkhan Mountain is located in the southeastern part of the central Iranian volcanic belt .Profound valleys and irregular drainage pattern on volcano side shows long time erosion and development of drainage network on it. This study aimed to identify geomorphometric characteristics of drainage basins, drainage pattern,as well as studying longitude river profile and morphologic evidence in order to analysis tectonic behavior on them . To obtain necessary data for this research topographic maps of 1:25000, Aerial photos:1:55000 and 1:20000 , geologic maps 1:100000 of Chaharghonbad and Bardsir and computer software were used as research equipments. To carry out the goal, drainage basin delimitate in GIS and WMS software and then morphometric statistics done in Excel. Based on the results of morphometric factors and comparing drainage pattern, in inner basin of caldera dendroid pattern developed and longitude profile shows equilibrium. In lateral basins parallel pattern has been developed. Southern basins shows high elevation (3195.4Meter) and longitude profiles are convex that shows youthfulness on valleys. It seems that this side of volcano affected by fault line showed on geologic map as an inferred fault . Fracture on longitude profiles, deep excavation and in some occasion barred valleys and pressure ridge are evidence of this purporst. Key Words: Bidkhan Volcano, Morphomerty, Drainage Pattern, Geomorphology
10. Davidson, J., and Silva, SH. 2000. Encyclopedia ofVolcanoes, Composite Volcanoes, Academic Press to Supply Copyright Page.
11. Dimitrijevic, M.D. 1973. Geology of Kerman region: geological .survey ofIran, Rep.No yu/52,334P.
12. Easterbrook, D.J. 1999. Surface Process and Landforms, Prentice Hall, p: 152.
13. Gerrard, A.J.1988. Rock and Landforms, Unwin Hyman, Pp: 20-23.
14. Summerfield, M.A.1991. Global Geomorphology, an Introduction to the Study of Landforms: Essex.
15. Porter, S.C. 1972. Distribution,Morphology and Size Frequency of Cinder cones on Mauna Kea Volcano, Hawaii: Geo. Soc.America Bull, V.83. pp: 3607-3612.
16. Karátson D.J.C., Thouret,I., Moriya, A. and LomoschitZ. 1999. Erosion calderas: origins, processes, structural and climatic control,Bull Volcanol (61), Pp: 174–193.
17. Keller, E.A., and Pinter, N. 1996. Active Tectonic: Earthqukes, Uplift, and Landscape. Prentice Hall, New Jersey.
18. Khalili, Sh., Viccaro, M., Cristofolini, R., and Ahmadipour,H. 2008. Differentiation of high-K calcalkaline magmasat Mount Bidkhan volcano (Central Iranian Volcanic Belt), Geochemica and cosmochemica Acta. Specialsupplement, A467.
19. Khalili, Sh., and Ahmadipour,H.2010.Using Magma Mixing/Mingling Evidence for Understanding Magmatic Evolution at Mount Bidkhan Stratovolcano (South-East Iran), Journal of sciences, Islamic Republic of Iran, 21(2): 137-153.
20. Zavoianu, I. 1985. Morphometry of Drainage Basins: Developments in Water Sciece, Elsevier, 240.
21. Ohmori, H 1996. Morphological characteristics of longitudinal profiles of rivers in the South Island,New Zealad.
22. Summerfield,M.A.1991. Global Geomorphology.An Introduction to the Study of Landforms: Essex England,Longman Scientific Technical, PP(115):208-405.