Changes

===Time slice maps===

===Time slice maps===

A time slice map shows geology in the horizontal plane at a given time (normally two-way time) ([[:file:mapping-with-two-dimensional-seismic-data_fig6.png|Figure 6]]). In essence, making a time slice map is analogous to making geological maps from cross sections. As a first step toward construction, imagine that all the data above your chosen time disappear and that your base map lies directly on top of the chosen time. Next, locate each intersection between an interpreted event and the chosen time and plot that intersection at the ground position immediately above. Finally, link the points for each respective event in a manner that is consistent with your knowledge of the structure on the lines.

A time slice map shows geology in the horizontal plane at a given time (normally two-way time) ([[:file:mapping-with-two-dimensional-seismic-data_fig6.png|Figure 6]]). In essence, making a time slice map is analogous to making geological maps from [[cross section]]s. As a first step toward construction, imagine that all the data above your chosen time disappear and that your base map lies directly on top of the chosen time. Next, locate each intersection between an interpreted event and the chosen time and plot that intersection at the ground position immediately above. Finally, link the points for each respective event in a manner that is consistent with your knowledge of the structure on the lines.

==Computer-aided mapping==

==Computer-aided mapping==