Thema Subject Categories 1.4

Previous versions of Thema are still available 1.3 1.2.

Browse the Thema subject categories hierarchy, or search for a specific term within the hierarchy.

See the search hints below.

Notation Category heading Add Mod ?
R Earth Sciences, Geography, Environment, Planning
Use all R* codes for: academic, technical, specialist and general adult titles. DO NOT USE: code ‘R’ itself, but select specific categories from section R*. Use all R* codes with: other subject categories and qualifiers where appropriate, in particular PLACE 1* Qualifiers
1.4
RB Earth sciences
Use all RB* codes for: academic, specialist and professional level works.
Prefer: WN* codes for the general reader.
See also: RGB* Physical geography and topography and its subcategories, WN* Nature and the natural world: general interest and its subcategories
1.3
RBG Geology, geomorphology and the lithosphere
See also: PHVG Geophysics, RGB Physical geography and topography
1.2
RBGB Sedimentology and pedology
See also: PNC Environmental chemistry, TNCC Soil and rock mechanics, TVBP Soil science and management
1.2
RBGD Geomorphology and geological surface processes
Class here: erosion, deposition, glaciology, fluvial and aeolian processes etc.
See also: RGB Physical geography and topography
1.2
RBGF Historical geology and palaeogeology
Class here: plate tectonics, continental drift, past supercontinents, such as Pangaea, Gondwana, Laurasia, the geological history of the Earth, etc
1.4
RBGG Petrology, petrography and mineralogy 1.2
RBGH Stratigraphy
RBGK Geochemistry
See also: PNC Environmental chemistry, PNV Chemistry of minerals, crystals and gems
RBGL Economic geology
Class here: petroleum and mining geology

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