| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2009: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2008: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
|
|---|
| Research Abstract |
Mineralogical and geochemical investigations for basalts from new type volcanoes "petit-spot" were conducted. Investigations clarify that a small-scale heterogeneity of upper mantle, wide-spreading across the Pacific Ocean, was caused by the recycled continental plate materials, that are variable more than expected. Furthermore, it was confirmed that the petit-spot magmatism is a common phenomenon within the Pacific Ocean. Geochemical variations of magma indicate that different source materials and/or isolated process leading from magma genesis to eruption for each small volcano.
|
