Donald L. Peterson M. Dean Kleinkopf 1969 <div id="article__content" class="col-sm-12 col-md-8 col-lg-8 article__content article-row-left"><div class="article__body "><div class="article-section__content en main"><p>Most of the gravity surveys of the U.S. Geological Survey have been support programs in connection with regional geologic structural studies, ground-water investigations, and heavy-metals exploration. Many of the studies were undertaken in conjunction with geological mapping and mineral investigations by the Survey's project geologists. Gravity data often complement aeromagnetic surveys to identify the sources of potential-field anomalies; other gravity data have been used to supplement high-resolution seismic and electrical investigations [<i>Mattick</i>, 1967]. Geochemical follow-up has been fruitful in western Montana [ Mudge et al, 1967].</p></div></div></div> application/pdf 10.1029/EO050i010p00529 en American Geophysical Union The U.S. Geological Survey's gravity program in the Rocky Mountain and Basin Range areas article