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| | QUATERNARY TECTONIC MOVEMENT OF MID-LOWLAND IN NORTHEAST JAPAN ARC (Site not responding. Last check: 2007-11-04) |
 | | In the northeast Japan arc and many other arcs, distinct lowlands, called the "mid-lowlands" in this study, run along the volcanic fronts. |
 | | The Tanabu Lowland, northern part of the Shimokita Peninsula, occupies north end of the mid-lowland of the northeast Japan arc, and is accompanied both by the marine terraces, namely the indicator of the Quaternary uplift movements, and by 50 m thick marine Pleistocene Tanabu Formation, the indicator of the subsidence. |
 | | Using the tephras as the key beds, the authors however show that the Tanabu Formation is a mid-Pleistocene group of three depositional sequences constructing the marine terraces, and had thus been sharply influenced by the glacio-eustatic sea-level cycles. |
| gsa.confex.com /gsa/2002AM/finalprogram/abstract_41883.htm (364 words) |
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