The Plio-Pleistocene age of Büyük Menderes and Gediz grabens and their tectonic significance on N-S extensional tectonics in West Anatolia: mammalian evidence from the continental deposits
✍ Scribed by Nuran Sarica
- Book ID
- 102658476
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 558 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0072-1050
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✦ Synopsis
The BuÈ yuÈ k Menderes and Gediz grabens form the two main E±W trending structures in the western Anatolian extensional province. This paper concerns the dating of continental deposits within these grabens based on their small mammal content, and its implications for the stratigraphy and tectonics of the region. Four new small mammal localities yielded an Arvicolidae fauna including Mimomys cf. ostramosensis and Kalymnomys major, indicating a late Pliocene±early Pleistocene age for the deposits, related to the graben systems. The Plio-Pleistocene deposits in these localities have a discordant relationship with the older depositional systems revealing a regional disconformity in the Pliocene±Pleistocene boundary interval. The age of accessible sedimentary in®lls and their localization along the grabens suggest that the N±S extension produced signi®cant eects in the Pliocene±Pleistocene boundary interval. The E±W normal faults chopped up and uplifted the late Pliocene±early Pleistocene deposits. This indicates that these grabens formed mainly during the Quaternary.