(Apr. 29-30, 2025)
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| For Kimura-san's bachelor thesis research, we investigated the Bihoku Group, which is distributed in the riverbed of the Saijo River in Shobara City. | |
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| This Group often contain oysters, and sometimes oyster reefs are formed. | |
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| After the survey, we gathered information at the Hiwa Natural Science Museum. | |
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