Natural Disaster. (1) (n.) Geology. Sediments that have accumulated, usually after being moved by wind, water or ice. See: sediment. (2) (vt.) Geology. The action of moving sediments and laying them down. See: sediment
Schlumberger Ltd. (The World's Leading Supplier Of Technology, Integrated Project Management And Information Solutions to Customers Working in The Oil and Gas Industry Worldwide), Schlumberger Oilfield Glossary Cedex, France 2014. http://www.glossary.oilfield.slb.com/en/Terms/sym/ a.aspx, (Ergo - Brit) {766}