Chilwa Island /
by M.S. Garson and W. Campbell Smith.
- Zomba : Government Printer, 1958.
- ix, 127 p. : ill.,maps (part fold., part col., part in pocket, pl ates ; 26 cm.
- Nyasaland Geological Survey Department Memoir ; no. 1 .
Includes bibliographical references (p. 122-127)
I - Introduction - Historical - Provisional geological map of the La ke Chilwa area - II - Physiography of the Shire Highlands plain and Chi lwa island - III - Geology of the Lake Chilwa area - IV - Basement comp lex and older syenite fenites - V - Agglomerate, contact and feldspathi c Breccia - VI - Carbonatites - Carbonatites rich in Pyrochlore - VIII - Nepheline syenite and Ijolite - IX - Mixed carbonate - silicate rocks - X - Dyke rocks - XI - Hydrothermal and radioactive rocks - XII - Fau lt pattern - XIII - Alluvial, eluvial and travertine deposits - XIV - E conomic minerals, soils and rocks XV - Stress pattern of the ring- stru cture - XVI - Petrogenesis