Use metric units of measure with the English unit equivalent in parentheses or, conversely, English units with metric equivalents in parentheses. Laboratory measurements do not require conversions.
Do not use abbreviations except for units of measure.
Limit the use of acronyms.
Cite figures in numerical order.
Cite all references and include complete information for each citation in "References Cited" section.
Limit the length of the abstract to no more than 250 words.
Follow the North American Stratigraphic Code (available through the AAPG Bookstore).
