THE SEA OF MARMARA - A PLATE BOUNDARY SEA IN AN ESCAPE TECTONIC REGIME

WONG H., LUDMANN T., ULUG A., GORUR N.

TECTONOPHYSICS, vol.244, no.4, pp.231-250, 1995 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 244 Issue: 4
  • Publication Date: 1995
  • Doi Number: 10.1016/0040-1951(94)00245-5
  • Journal Name: TECTONOPHYSICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.231-250
  • Dokuz Eylül University Affiliated: No

Abstract

The Sea of Marmara is dissected by Two major fault systems. The first consists of two east-west-striking, transtensional boundary faults and a number of secondary faults subparallel to them. The second is made up of NE-SW-trending, subvertical strike-slips and their conjugates oriented NW-SE that offset the first system. These fault systems segment the deep Marmara Sea into 5 blocks that are either rhomboidal, lazy-Z or wedge-shaped. Three of these blocks may be interpreted as pull-apart basins characterized by transtension, while the other two (sill areas) which separate the basins are transpressional push-up structures. The blocks are subjected to rapid, episodic subsidence, but they also undergo pervasive vertical motions and possible rotations relative to one another.