GEOMORPHIC SIGNATURES OF ACTIVE TECTONICS IN THE KARAJ DRAINAGE BASIN IN SOUTH CENTRAL ALBORZ, N IRAN

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

KHAVARI R.; GHORASHI M.; ARIAN MEHRAN; KHOSROU TEHRANI KH.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: GEOSCIENCES Year:2010 | Volume:19 | Issue:75 Page(s): 67-74

Download Full-Text

Persian Verion

View:

1,941

Download:

Cites:

Information Journal Paper

Title

GEOMORPHIC SIGNATURES OF ACTIVE TECTONICS IN THE KARAJ DRAINAGE BASIN IN SOUTH CENTRAL ALBORZ, N IRAN

Author(s)

KHAVARI R. | GHORASHI M. | ARIAN MEHRAN | KHOSROU TEHRANI KH. | Issue Writer Certificate

Keywords

GEOMORPHIC INDICES OF ACTIVE TECTONICSQ2

DRAINAGE BASINQ2

ASYMMETRYQ2

CENTRAL ALBORZQ2

Abstract

The paper presents a method for evaluating relative active tectonics based on geomorphic indices useful in evaluating morphology and topography. Indices used include: stream length-gradient index (SL), DRAINAGE BASIN ASYMMETRY (Af), hypsometric integral (Hi), ratio of valley-floor width to valley height (Vf), index of DRAINAGE BASIN shape (Bs), and index of mountain ITont sinuosity (Smf). Results ITom the analysis are accumulated and expressed as an index of relative active tectonics (Iat), which divided into four classes from relatively low to highest tectonic activity. The study area along the south flank of the CENTRAL ALBORZ mountain range in north Iran is an ideal location to test the concept of an index to predict relative tectonic activity on a basis of area rather than a single valley or mountain ITont. The recent investigations show that neotectonism has played a key role in the geomorphic evolution of this part of the Alborz mountain range. Geomorphic indices indicate the presence of differential uplifting in the geological past. The high class values (low tectonic activity) for Iat mainly occur in the south and southeast of the Karaj DRAINAGE BASIN, while the rest of the study area has classes of Iat suggesting moderate to high tectonic activity. Around the Amirkabir Lake, Iat has the highest value. The distribution of the indices defines areas associated with different mountain fronts and estimates of relative rates of tectonic activity. More than half of the study area is classified into classes 2 or 1 of high to very high tectonic activity in terms of the apparent geomorphic response. In different tectonic environments with greater rates of active tectonics, the values of indices would differ as well as their range in value. The stream network ASYMMETRY (T) was also studied using morphometric measures of Transverse Topographic Symmetry. Analysis of the DRAINAGE BASIN and a number of sub-basins in the study area results in a field of T-vectors that defines anomalous zones of the basin ASYMMETRY. We test the hypothesis that areas with great stream migration are associated with indicatives values of Iat.

Cites

References

No record.

Cite

APA: Copy

KHAVARI, R., GHORASHI, M., ARIAN, MEHRAN, & KHOSROU TEHRANI, KH.. (2010). GEOMORPHIC SIGNATURES OF ACTIVE TECTONICS IN THE KARAJ DRAINAGE BASIN IN SOUTH CENTRAL ALBORZ, N IRAN. GEOSCIENCES, 19(75), 67-74. SID. https://sid.ir/paper/31274/en

Vancouver: Copy

KHAVARI R., GHORASHI M., ARIAN MEHRAN, KHOSROU TEHRANI KH.. GEOMORPHIC SIGNATURES OF ACTIVE TECTONICS IN THE KARAJ DRAINAGE BASIN IN SOUTH CENTRAL ALBORZ, N IRAN. GEOSCIENCES[Internet]. 2010;19(75):67-74. Available from: https://sid.ir/paper/31274/en

IEEE: Copy

R. KHAVARI, M. GHORASHI, MEHRAN ARIAN, and KH. KHOSROU TEHRANI, “GEOMORPHIC SIGNATURES OF ACTIVE TECTONICS IN THE KARAJ DRAINAGE BASIN IN SOUTH CENTRAL ALBORZ, N IRAN,” GEOSCIENCES, vol. 19, no. 75, pp. 67–74, 2010, [Online]. Available: https://sid.ir/paper/31274/en

Related Journal Papers