Istituto di Geoscienze e Georisorse     
Yegingil Z., Boztug D., Er M., Oddone M., Bigazzi G. Timing of neotectonic fracturing by fission track dating of obsidian in-filling faults in the Ikizdere-Rize area, NE Black Sea region, Turkey. In: Terra Nova, vol. 14 (3) pp. 169 - 174. Wiley, 2002.
There are several NE–SW- and NNW–SSE-trending sets of neotectonic faults that are infilled with obsidians in the Ä°kizdere–Rize district of the NE Black Sea region, Turkey. Using the fission-track technique, it is estimated that these fracture-filling obsidians were formed between 1.73 ± 0.10 and 1.93 ± 0.15 Ma. This short period is consistent with a unique eruption, and is supported by petrographic and geochemical data that reveal very homogenous characteristics. Although existing literature data indicate that these faults are part of the early Pliocene neotectonic fracture system in this region, the determination of latest Pliocene–Pleistocene formation for the Ä°kizdere obsidians better constrains its timing.
URL: http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1365-3121
Subject Turkey
Ikizdere-Rize region
neotectonic faults
fission-track dating

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