| Budget Amount *help |
¥35,100,000 (Direct Cost: ¥27,000,000、Indirect Cost: ¥8,100,000)
Fiscal Year 2006: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2005: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Fiscal Year 2004: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
Fiscal Year 2003: ¥13,000,000 (Direct Cost: ¥10,000,000、Indirect Cost: ¥3,000,000)
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| Research Abstract |
Holocene relative sea-level changes have been reconstructed by using the relationship between carbon isotope ages of sample and/or depths of occurrence. The Japanese Holocene successions are interpreted to represent a depositional sequence. Temporal changes of depositional rate also can be obtained for the Holocene. A smoothed curve on the diagram of age versus elevation, called "depositional curve". represents an space and time trajectory of "sea-floor" during the period of deposition. The paleo-depth also can be deciphered using by the depositional curve and relative sea-level curve.
The depositional curves characterize temporal patterns in a wide range of depositional systems, such as, delta, beach-shoreface, bay, barrier, fluvial, lake and foreland-basin. The depositional curves for different types of depositional systems appear to be important new data for the sequence-stratigraphic analysis of older deposits. The major reason is that these curves show quantative variations in depositional speed during a transgressive-and-regressive cycle in different types of depositional systems.
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