The use of general procedures and style guidelines established by the USGS for the submission, review, and editing of planetary maps will materially expedite review and publication of maps. In addition, discussions with and informal reviews by authors of adjacent maps permit amicable and informal resolution of differences before a map is submitted. A USGS convention requires that map borders match those of neighboring maps submitted earlier, and texts should agree with neighboring texts, unless the author of the later submittal explicitly justifies the differences.
Mapping is compiled on the half-tone cronaflex quadrangle base.
The emulsion is on the back side of the cronflex, so that erasures of drafted work on the front side do not affect the mosaic. Preliminary reconnaissance mapping on a paper print or mylar overlay prior to final compilation on the brownline base can be very helpful. The submittal copy on the cronaflex base should be drafted in ink. The line weight for major structures should be clearly heavier than that used for contacts, but minor structures can be shown in a light line weight. Prior to submittal, the mapper should color a paper ozalid or photocopy of the brownline to ensure proper and complete labeling of units.