![Extinction events / Proterozoic / Planetary science / Glaciology / Ice ages / Habitable zone / Snowball Earth / Huronian glaciation / Earth science / Astronomy / Historical geology / Space Extinction events / Proterozoic / Planetary science / Glaciology / Ice ages / Habitable zone / Snowball Earth / Huronian glaciation / Earth science / Astronomy / Historical geology / Space](https://www.pdfsearch.io/img/b3167678a01229954b7ca152dd88a34a.jpg)
| Document Date: 2012-11-22 04:04:21 Open Document File Size: 19,18 KBShare Result on Facebook
Company Huronian Supergroup / / Event Environmental Issue / / Facility The University of Tokyo / / / Organization Univ. of Tokyo / University of Tokyo / Graduate School / / Person Yasuhito Sekine / / / Position Present Lecturer / Research Associate / /
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