[[file:applying-gravity-in-petroleum-exploration_fig15-3.png|300px|thumb|{{figure number|1}}Bouguer gravity maps of Spouthern California showing the expression of faults.]]
+
Faults usually can be identified through either steep gradients or truncation of trends.
Faults usually can be identified through either steep gradients or truncation of trends.
−
The figure below contains two Bouguer gravity maps of Southern California, showing the expression of faults. In the left map, locations ''a'' and ''b'' show strong gradients, which indicate faults. A series of truncated trends (dashed) near location c also indicate faults. [[:file:applying-gravity-in-petroleum-exploration_fig15-3.png|Figure 1]] shows the actual location of the major faults over the same gravity map.
+
[[:file:applying-gravity-in-petroleum-exploration_fig15-3.png|Figure 1]] contains two Bouguer gravity maps of Southern California, showing the expression of faults. In the left map, locations ''a'' and ''b'' show strong gradients, which indicate faults. A series of truncated trends (dashed) near location c also indicate faults. [[:file:applying-gravity-in-petroleum-exploration_fig15-3.png|Figure 1B]] shows the actual location of the major faults over the same gravity map.