GeoRef

1966年由美国地球科学研究所（AGI）建立的Georef数据库提供了对世界地球科学文学的访问。Georef是地球科学中最全面的AGI数据库，并在一年内继续增长超过80,000个引用。该数据库包含超过400万引用地球科学期刊文章，书籍，地图，会议论文，报告和论文。

The GeoRef database covers the geology of North America from 1669 to the present and the geology of the rest of the world from 1933 to the present. The database includes references to all publications of the U.S. Geological Survey. Masters' theses and doctoral dissertations from US and Canadian universities are also covered.

To maintain the database, GeoRef editor/indexers regularly scan more than 3,500 journals in 40 languages as well as new books, maps, and reports. They record the bibliographic data for each document and assign index terms to describe it. Each month between 4,000 and 7,000 new references are added to the database.

A subscription to the GeoRef database also includes access to the GeoRef In Process database (so both databases can be searched at once). The GeoRef In Process database includes two types of references: references to new publications that have not been edited for inclusion in GeoRef and references to older materials received from various international geoscience organizations.

Subject Coverage
Major areas of coverage include:

• Areal geology
• Economic geology
• Engineering geology
• Environmental geology
• Extraterrestrial geology
• Geochemistry
• Geochronology
• Geophysics
• Hydrogeology and hydrology
• Marine geology and oceanography
• Mathematical geology
• Mineralogy and Crystallography
• Paleontology
• Petrology
• Seismology
• Stratigraphy
• Structural geology
• Surficial geology

Update Frequency
Biweekly with approximately 4,000 new records added per update.

Size
超过400万引用