DMU Headnote
DMU Headnote
[Note that we do not map most individual plutons within the batholith, as that level of detail is beyond the scope of this product. We urge users who want that level of detail to refer to the larger scale maps of portions of the map area that include more detail, available through the national geologic map database (https://ngmdb.usgs.gov). Note also that “intrusive suite” and “intrusive complex” herein are used in the more expansive grouping style of Bateman (1992) and Lackey and others (2008), which groupS plutons intruded over a longer period of time and is meant to reflect one or more regional periods of intrusion, and is quite distinct from the much more restricted “intrusive suite” of Moore and Sisson (1987), which is meant to reflect a single pulse of magma with a very limited age span. “plutonic complex” is used for a smaller group of plutons, in some cases forming a single body in map view, but revealed by age or composition to be composed of multiple intrusions.]