researchers (IMAGE) Virginia Tech Caption Virginia Tech and Japanese researchers extract sediment core from the Kujukuri coastal plain in Japan. Photo courtesy of Tina Dura Credit Tina Dura Usage Restrictions No restrictions. License Public Domain Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.