2012 Fiscal Year Final Research Report
Quantatitative evaluation of chemical weathering effect and development of paleoclimate index
| Project/Area Number |
22740332
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Geology
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| Research Institution | Waseda University |
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Principal Investigator |
OHTA Tohru 早稲田大学, 教育・総合科学学術院, 准教授 (40409610)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 風化作用 / 土壌組成 |
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| Research Abstract |
The present study aims to unravel the relationship between geochemical changes during soil formation and relevant climatic conditions that induce geochemical modification. As a result, newly invented geochemical index successfully discriminated soils developed on boreal, boreal humid, steppe, temperate humid, arid, semi-arid and tropical rainforest climates. This eochemical index could be applied to paleosols to evaluate climatic condisions of the past. Applications to the Cretaceous strat in Hokkaido and Northern China revaled that geochemical paleoweathering W index are concordant with paleoclimatic changes, and verified that the W index would serve as a new paleoclimate proxy.
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Research Products
(21 results)
