Two-and-three-dimensional crustal thickness of the Eastern Pontides (NE Turkey)

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dc.authoridMADEN, Nafiz -- 0000-0001-5201-850X
dc.contributor.authorMaden, Nafiz
dc.contributor.authorGelişli, Kenan
dc.contributor.authorEyübo?lu, Yener
dc.contributor.authorBektaş, Osman
dc.date.accessioned13.07.201910:50:10
dc.date.accessioned2019-07-29T19:26:38Z
dc.date.available13.07.201910:50:10
dc.date.available2019-07-29T19:26:38Z
dc.date.issued2009
dc.departmentMühendislik Fakültesi
dc.description.abstractThe Eastern Pontide orogenic belt is divided into three subzones ( northern, southern and axial zones) based on present lithologies and facies associations. NE-SW-, NW-SE- and E-W-trending fault systems, which play an important role in palaeotectonics and neotectonics of the Eastern Pontides, separate these zones. Three different methods were used to estimate the Moho depth from observed gravity value, namely (i) empirical relationship between Moho depth and Bouguer anomaly; (ii) spectral analysis of the radial wave number and; (iii) by the gravity inversion method. Power spectrum, a statistical approach, is a widely used technique to determine the depth of geological sources successfully. The empirical linear relations between the Bouguer anomalies and seismically determined crustal thicknesses have been used to compute depths to the Conrad and Moho discontinuities, which are consistent with the average depths obtained from the power spectrum method. The crustal structure was also determined from the inversion of a Bouguer anomaly profile along longitude 39 degrees. Gravity inversion results are consistent with those obtained from the empirical relations and power spectrum methods. We calculated the maximum crustal thickness of 43.8 km in the studied region by using the gravity inversion method, which also showed that crustal thickness increases from north to south.
dc.description.sponsorshipScientific and Technological Researc Council of Turkey (TUBITAK); Karadeniz Technical University [20.112.007.1]
dc.description.sponsorshipThe Scientific and Technological Researc Council of Turkey (TUBITAK) and Karadeniz Technical University Research Grant Fund (20.112.007.1) supported this study. We thank Richard Hansen and anonymous referees for their thorough critical and constructive comments. John A. Winchester edited the English of final text. I express my thanks to General Directorate of the Mineral Research and Exploration (MTA) of Turkey for providing digital gravity data.
dc.identifier.doi10.3906/yer-0703-3
dc.identifier.endpage238en_US
dc.identifier.issn1300-0985
dc.identifier.issue2en_US
dc.identifier.scopusqualityQ2
dc.identifier.startpage225en_US
dc.identifier.urihttps://doi.org/10.3906/yer-0703-3
dc.identifier.urihttps://hdl.handle.net/20.500.12451/5662
dc.identifier.volume18en_US
dc.identifier.wosWOS:000266902800004
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY-TUBITAK
dc.relation.ispartofTURKISH JOURNAL OF EARTH SCIENCES
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/embargoedAccess
dc.subjectEastern Pontides
dc.subjectCrustal Structure
dc.subjectMoho Depth
dc.subjectBouguer Gravity
dc.subjectGravity Inversion
dc.titleTwo-and-three-dimensional crustal thickness of the Eastern Pontides (NE Turkey)
dc.typeArticle

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