Encyclopedic Dictionary of Applied Geophysics online free through December 31

The Society of Exploration Geophysicists is offering the Encyclopedic Dictionary of Applied Geophysics (4th ed.) free until the end of the year:

www.segdl.org/dictionary

According to the SEG,
"This richly illustrated reference work gathers and defines terms used by geophysicists in a wide range of applications - in the search for oil and gas, coal, water, and other natural resources; in natural disaster prediction and preparedness; in geotechnical engineering; for environmental analyses; and other investigations of the earth's subsurface. A variety of supporting documents, including conversion tables and a list of Greek symbols, are also provided in this online edition of the SEG best-seller."