26 August (South Africa ) within release South African Geology goes into circulation Stamp Geological Cross Section Karoo Supergroup face value Int. South African rand
Stamp Geological Cross Section Karoo Supergroup in catalogues | |
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Colnect codes: | Col: ZA 2016-01 |
Stamp is square format.
Also in the issue South African Geology:
Stamp Geological Cross Section Karoo Supergroup it reflects the thematic directions:
Geology (from Ancient Greek γῆ (gê) 'earth', and λoγία (-logía) 'study of, discourse') is a branch of natural science concerned with the Earth and other astronomical objects, the rocks of which they are composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth sciences, including hydrology. It is integrated with Earth system science and planetary science.