نتایج جستجو برای: rhyolitic composition

تعداد نتایج: 260034  

Journal: :Journal of Petrology 2021

Abstract The Takidani pluton (1·1–1·6 Ma) represents a shallow magmatic reservoir at the base of an exhumed caldera floor. deposits two large caldera-forming eruptions, Nyukawa Pyroclastic Flow Deposit (1·76 Ma; crystal-rich dacite) and Chayano Tuff Ebisutoge Deposits (1·75 sequence crystal-poor rhyolite), are distributed concentrically around pluton. We use major trace element chemistry whole-...

2005

Western Turkey has been dominated by N–S extension since the Early Miocene. The timing and cause of this N–S extension and related basin formation have been the subject of much debate, but new data from the Bigadiç borate basin provide insights that may solve this controversy. The basin is located in the Bornova Flysch Zone, which is thought to have formed as a major NEtrending transform zone d...

Journal: :Remote Sensing 2016
Mark A. Price Michael S. Ramsey David A. Crown

Orbital thermal infrared (TIR) remote sensing is an important tool for characterizing geologic surfaces on Earth and Mars. However, deposition of material from volcanic or eolian activity results in bedrock surfaces becoming significantly mantled over time, hindering the accuracy of TIR compositional analysis. Moreover, interplay between particle size, albedo, composition and surface roughness ...

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