UDC Consortium, PO Box 90407, 2509 LK The Hague, The Netherlands
Tel.: (+31) 70 314 0509    Fax: (+31) 70 314 0667    E-mail: udc@kb.nl

5 Mathematics and natural sciences
55 Earth sciences. Geological sciences


550 Ancillary sciences of geology etc.
551 General geology. Meteorology. Climatology. Historical geology. Stratigraphy. Palaeogeography
551.1/.4 General geology
551.1 General structure of the Earth
551.2 Internal geodynamics (endogenous processes)
551.3 External geodynamics (exogenous processes)
551.4 Geomorphology. Study of the Earth's physical forms
551.5 Meteorology
552 Petrology. Petrography
553 Economic geology. Mineral deposits
556 Hydrosphere. Water in general. Hydrology


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