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Full-Text Articles in Earth Sciences
Contact Metamorphism In The Malashan Dome, North Himalayan Gneiss Domes, Southern Tibet: An Example Of Shallow Extensional Tectonics In The Tethys Himalaya, Tetsuo Kawakami, Mutsuki Aoya, Simon Wallis, Jeffrey Lee, Kentaro Terada, Yu Wang, Matt Heizler
Contact Metamorphism In The Malashan Dome, North Himalayan Gneiss Domes, Southern Tibet: An Example Of Shallow Extensional Tectonics In The Tethys Himalaya, Tetsuo Kawakami, Mutsuki Aoya, Simon Wallis, Jeffrey Lee, Kentaro Terada, Yu Wang, Matt Heizler
All Faculty Scholarship for the College of the Sciences
Combined petrographic, structural and geochronological study of the Malashan dome, one of the North Himalayan gneiss domes, reveals that it is cored by a Miocene granite, the Malashan granite, that intruded into the Jurassic sedimentary rocks of Tethys Himalaya. Two other granites in the area are referred to as the Paiku and Cuobu granites. New zircon SHRIMP U-Pb and muscovite and biotite 40Ar-39Ar dating show that the Paiku granite was emplaced during 22.2–16.2 Ma (average 19.3 ± 3.9 Ma) and cooled rapidly to 350–400 °C at around 15.9 Ma. Whole-rock granite chemistry suggests the original granitic magma …
Tectonic Evolution Of The Kiraz Basin, Küçük Menderes Graben: Evidence For Compression/Uplift-Related Basin Formation Overprinted By Extensional Tectonics In West Anatolia, Tahi̇r Emre, Hasan Sözbi̇li̇r
Tectonic Evolution Of The Kiraz Basin, Küçük Menderes Graben: Evidence For Compression/Uplift-Related Basin Formation Overprinted By Extensional Tectonics In West Anatolia, Tahi̇r Emre, Hasan Sözbi̇li̇r
Turkish Journal of Earth Sciences
The Kiraz Basin which is located at the eastern end of the Küçük Menderes Graben was previously considered to be an extensional basin. However, the data presented here allow us to infer that the tectonic evolution of the Kiraz Basin could be explained by an alternate model which suggests compression/uplift-related basin formation at the early stage of basin evolution followed, later, by block faulting in an extensional neotectonic regime. The successive compressional and extensional strain is accommodated by a predominantly NE-trending strike-slip fault system. The new model is based on the detailed mapping, field-cross sections and kinematic analyses of the …