John Day Fossil Beds National Monument Geologic Resources Inventory Report.

摘要

The Geologic Resources Inventory (GRI) is one of 12 inventories funded by the National Park Service (NPS) Inventory and Monitoring Program. The Geologic Resources Division of the NPS Natural Resource Stewardship and Science Directorate administers the GRI. This report synthesizes discussions from a conference call for John Day Fossil Beds National Monument (Oregon) on 30 January 2013, which was held by the Geologic Resources Division to determine geologic resources, the status of geologic mapping, and geologic resource management issues and needs. It is a companion document to previously completed GRI digital geologic map data. In 1974, John Day Fossil Beds National Monument was established to preserve an outstanding collection of Paleogene and Neogene (Tertiary) fossils. The museum collections at John Day Fossil Beds National Monument include more than 60,000 specimens of plant and animal fossils that span more than 40 million years, a span of time encompassing most of the Cenozoic Era.