N
Namık Aysal
Researcher at Istanbul University
Publications - 41
Citations - 384
Namık Aysal is an academic researcher from Istanbul University. The author has contributed to research in topics: Geochronology & Geology. The author has an hindex of 7, co-authored 31 publications receiving 253 citations.
Papers
More filters
Journal ArticleDOI
Geochemistry and U–Pb zircon geochronology of metagranites in Istranca (Strandja) Zone, NW Pontides, Turkey: Implications for the geodynamic evolution of Cadomian orogeny
TL;DR: In this paper, new zircon U-Pb dating and whole-rock geochemical analysis were carried out on meta-intrusive rocks (Catalca and Ihsaniye metagranites) of the Istranca Zone, Western Pontides, with the aim of constraining the magmatic evolution of the Cadomian orogeny of the northern Gondwana margin during Late Precambrian-Early Paleozoic times.
Journal ArticleDOI
Origin of the Early-Middle Devonian magmatism in the Sakarya Zone, NW Turkey: Geochronology, geochemistry and isotope systematics
Namık Aysal,Timur Ustaömer,Sinan Öngen,Mehmet Keskin,Serhat Köksal,Irena Peytcheva,Mark Fanning +6 more
TL;DR: In this article, a unique example of isotopically-dated Devonian metagranitoid was found out in the Biga Peninsula, NW Turkey, although its contact relationships with the country rocks and geodynamic setting have remained to be enigmatic so far.
Journal ArticleDOI
Micro-textural effects on crack initiation and crack propagation of andesitic rocks
TL;DR: In this article, the crack initiation threshold and peak strength are influenced by the ratio of the area of fine grain groundmass (grains smaller than 200μm) to amphibole and plagioclase phenocrysts.
Journal ArticleDOI
Mineral chemistry, crystallization conditions and geodynamic implications of the Oligo–Miocene granitoids in the Biga Peninsula, Northwest Turkey
TL;DR: In this article, the authors used the mineral chemistry of amphiboles, pyroxenes, biotites and feldspars to constrain the pressure (P), temperature (T), oxygen fugacity (log O2), and water contents (H2Omelt) during the crystallization of the studied granitoids.
Journal ArticleDOI
Origin and evolution of the Havran Unit, Western Sakarya basement (NW Turkey): new LA-ICP-MS U-Pb dating of the metasedimentary-metagranitic rocks and possible affiliation to Avalonian microcontinent
TL;DR: One of the pre-Jurassic metamorphic basements of the Western Sakarya Zone (NW Turkey) is the Havran Unit which contains metasedimentary (i.e. the Kalabak formation) and metaintrusive rocks of Devon as discussed by the authors.