Geology topics
Publications and source records attributed to Gregory Smith.
This plan integrates science across multiple USGS disciplines, and provides national and international opportunities for USGS collaboration with state and federal agencies, academic institutions, and non-governmental organizations throughout the Americas.
Gravity surveys are useful tools for helping to understand the 3-dimensional geology of an area. Many gravity measurements were made in the 1960s and 1970s by various groups in order to produce gravity maps covering California at a scale of 1:250,000 for the California Division of Mines and Geology. (For this area see Biehler et. al. 1988.) More recent surveys have focused on specific areas and problems. This report includes new data on the southern portion of the Marine Corps Air Ground Combat Center (MCAGCC) Twentynine Palms and the Yucca Valley-Joshua Tree-Twentynine Palms area and presents the map and basin analyses that were prepared with these data.