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U-Pb zircon ages of syenitic and granitic rocks in the Ashizuri igneous complex, southwestern Shikoku: Constraint for the origin of forearc alkaline magmatism
U-Pb age zircon LA-ICP-MS Miocene alkaline magmatism Southwest Japan Outer Zone
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2017/8/9
We report two first U-Pb zircon ages of the felsic rocks in the Ashizuri igneous complex, southwestern Shikoku, using the LA-ICP-MS. Samples are a syenite (ASH54) and a biotite granite (ASH5). Weighte...
Geology of a magma transfer zone:the Hortavær Igneous Complex,north-central Norway
Geology magma transfer zone Hortavæ r Igneous Complex north-central Norway
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2009/12/3
The Hortavær intrusive complex consists of a wide range of plutonic rocks, from gabbro (calcic) to alkali feldspar syenite (alkalic). Emplacement at 456 ± 8 Ma (U-Pb, titanite) was primarily as ...
Petrogenesis of the Çiçekdağ Igneous Complex, N of Kırşehir, Central Anatolia, Turkey
Ç iç ekdağ igneous complex, high-K calcalkaline alkaline magmatism Central Anatolian ophiolite igneous petrogenesis collision zone magmatism
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2009/7/8
Central Anatolia typically represents well-preserved geological features of a collision zone. This collision zone is characterized by some geological events occurred in the Anatolide passive margin of...