Correction
JUN 01, 2009
DOI: 10.1063/1.3156317
April 2009, page 88 —In the first paragraph, “dense oil deposits surrounded by lighter limestone or clay” should read “lighter oil deposits surrounded by denser limestone or clay.” In the third paragraph, 1 milligal = 0.001 cm/s2.
© 2009 American Institute of Physics
