Geomagnetic field observations over southern Africa, including countries like South Africa, Namibia, and Botswana, were conducted during October and November 2005 as part of a collaborative project, called COMPASS (COmprehensive Magnetic Processes under the African Southern Sub-continent) between the Hermanus Magnetic Observatory (HMO) in South Africa and the GeoForschungsZentrum Potsdam (GFZ) ...

Much of this series has covered the weather types experienced in the tropics. Following on from the introduction to tropical climates in Part 1 (Galvin, 2007), this penultimate part describes the major climates and their relationship to the plants and animals of the tropics, including humankind, that have settled in all tropical environments. A map of the climatic zones of the tropics appears a...

It is a known fact that, world wide, there are more than 200 international water systems and that some 60 per cent of the global population resides within such systems. This has important implications for international security of these water systems and the people dependent on them. With this in mind, the United Nations University (UNU), within the framework of the environmentally sustainable ...

The podiform chromitite deposits of the Ordovician Sorkhband ultramafic complex, southwestern Makran, are the largest chromitite deposits in Iran. The Sorkhband ultramafic complex comprises of a northern part of dunite, podiform chromitite, olivine clinopyroxenite, wehrlite and olivine websterite and a southern part of foliated diopsidic harzburgite with subordinate dunite, olivine clinopyroxen...

The excellent preservation of the acritarchs, their great abundance, diversity and good stratigraphic control permit establishment of a detailed Middle and Late Cambrian acritarch biozonation. A total of 56 palynomorph species form the basis of 10 local acritarch assemblage zones. Assemblage zones I-II occur in the lower and middle parts of the Member C of the Mila Formation and suggest Early-m...