2009 Fiscal Year Final Research Report
Paleomagnetic study on the Paleoproterozoic Snowball Earth
| Project/Area Number |
19740273
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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 |
Solid earth and planetary physics
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| Research Institution | University of Toyama |
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Principal Investigator |
YOSHIHARA Arata University of Toyama, 大学院・理工学研究部(理学), 助教 (50361944)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 古地磁気学 / 古緯度 / 原生代 / 全球凍結 / スノーボール・アース / ヒューロニアン地域 / 氷河堆積物 |
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| Research Abstract |
In order to reconstruct the paleolatitude for the last glacial sedimentary units of the Paleoproterozoic Huronian glacial epoch, I performed paleomagnetic measurements of sedimentary rocks from the Marquette Range supergroup, USA. Mean paleolatitude values obtained are ranging from 11 to 21 degrees. However, these characteristic remanent magnetizations do not pass some field tests, suggesting that they possibly are secondary remanences.
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