Three-D or 3-D seismic : Seismic maps that show detail in three directions. A network or grid of values that models a geologic surface or structure as a surface of density contrast (gravity), or susceptibility (magnetic)
George E. King Engineering, 5000 Oilfield Terms: A Glossary of Petroleum Engineering Terms, Abbreviations and Acronyms, US 2010. http://gekengineering.com/Downloads/Free_Downloads /Glossary_of_Petroleum_Engineering_Terms_25_August _2010.pdf, (Oil - Amer) {593}