Morphologic features of the Marmara Sea from multi-beam data

Gazioğlu, Cem; Gökaşan, Erkan; Algan, Oya; Yücel, Zeki; Tok, Buğser; Doğan, Emine

doi:10.1016/s0025-3227(02)00356-0

Cited by 57 publications

(36 citation statements)

References 14 publications

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“…In contrast, results from other studies in which detailed multi-beam bathymetric and seismic data were obtained by the Turkish Navy, Department of Navigation, Hydrography and Oceanography and the General Directorate for Mineral Research and Exploration of Turkey have suggested that the NS-NAF cuts the basins and ridges of the Marmara Trough in an unconforming manner instead of forming them (İmren et al, 2001;Le Pichon et al, 2001;Gökaşan et al, 2001Gökaşan et al, , 2003Gazioglu et al, 2002;Kuşçu et al, 2002;Demirbag et al, 2003;Rangin et al, 2004;Ş engör et al, 2004;Fig. 2).…”

Section: Introductionmentioning

confidence: 91%

“…According to this theory, the Marmara Trough originated as an extensional basin in the Late Miocene, which then collapsed with the initiation of the NS-NAF (Gökaşan et al, 2003). Gazioglu et al (2002) observed two different types of slope morphologythe high-angle linear and low-angle curved slopes, both bordering the Marmara Trough ( Fig. 3(a), (b)).…”

Section: Introductionmentioning

confidence: 94%

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An example of secondary fault activity along the North Anatolian Fault on the NE Marmara Sea Shelf, NW Turkey

Tur

2007

Earth Planet Sp

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Seismic data on the NE Marmara Sea Shelf indicate that a NNE-SSW-oriented buried basin and ridge system exist on the sub-marine extension of the Paleozoic Rocks delimited by the northern segment of the North Anatolian Fault (NS-NAF), while seismic and multi-beam bathymetric data imply that four NW-SE-oriented strike-slip faults also exist on the shelf area. Seismic data indicate that NW-SE-oriented strike-slip faults are the youngest structures that dissect the basin-ridge system. One of the NW-SE-oriented faults (F1) is aligned with a rupture of the North Anatolian Fault (NAF) cutting the northern slope of the Ç ınarcık Basin. This observation indicates that these faults have similar characteristics with the NS-NAF along the Marmara Sea. Therefore, they may have a secondary relation to the NAF since the principle deformation zone of the NAF follows the Marmara Trough in that region. The seismic energy recorded on these secondary faults is much less than that on the NAF in the Marmara Sea. These faults may, however, produce a large earthquake in the long term.

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Section: Introductionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 94%

An example of secondary fault activity along the North Anatolian Fault on the NE Marmara Sea Shelf, NW Turkey

Tur

2007

Earth Planet Sp

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“…Among these, the Çınarcık Basin, which is located south of the Prince Islands, has a maximum depth of 1270 m. The Central Basin, which is located between Marmara Ereğlisi and Kapıdağ Peninsula, harbours the deepest point (1268 m) of the Sea of Marmara. The Tekirdağ Basin, which is situated in front of the Ganos Mountains, has a maximum depth of 1133 m (Gazioğlu et al, 2002).…”

Section: Study Areamentioning

confidence: 99%

Soft Bottom Molluscan Assemblages of the Bathyal Zone of the Sea of Marmara

Doğan¹,

Öztürk

Bitlis-Bakir

et al. 2016

Medit. Mar. Sci.

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The present study deals with the soft bottom molluscan species collected from the bathyal zone of the Sea of Marmara in 2013. Replicated samples were taken by a Box Core, sampling an area of 0.1 m2 at 31 stations at the two depth transects, 500 and 1000 m. A total of 1229 individuals belonging to 4 classes and 28 species were collected. Two species (Akritogyra conspicua and Liostomia hansgei) are new records for the marine molluscan fauna of Turkey and four species (Benthonella tenella, Odostomia silesui, Syrnola minuta and Crenilabium exile) are new records for the molluscan fauna of the Sea of Marmara. A relatively richer fauna was determined in 500 m (25 species) than in 1000 m (17 species). The most dominant species at 500 m and 1000 m depths were Crenilabium exile and Parthenina flexuosa, respectively. Number of species and number of individuals varied significantly only between depths while number of individuals changed significantly among basins (ANOVA test). A significant difference in species assemblages between the Tekirdağ and the Central Basins was detected (ANOSIM test). The multivariate analysis showed that the depth was the main factor influencing the molluscan assemblages in the area.

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“…To the east of the Marmara Sea, the NAFZ bifurcates into three segments. The NS-NAFZ, which is the most active of these, extends into the Marmara Sea via the İzmit Gulf, thereby dissecting the approximately ENE-WSW-oriented deep Marmara Basin, whereas the central segment (CS-NAFZ) passes through the Gemlik Gulf and then follows the southern coastline of the Marmara Sea (Barka and Kadinsky-Cade 1988;Wong et al 1995;İmren et al 2001;Le Pichon et al 2001;Armijo et al 2002;Gazioğlu et al 2002;Gökaşan et al 2003;Gürer et al 2003Gürer et al , 2006. The southern segment (SS-NAFZ), in turn, passes through the terrestrial area south of the Marmara Sea (Barka and Kadinsky-Cade 1988;Gürer et al 2003Gürer et al , 2006Fig.…”

Section: Morpho-tectonic Situation In the Marmara Regionmentioning

confidence: 99%