TY - BOOK AU - Hill,J.H. TI - Cassiterite mineralization and its relation to wall rock alteration: a study of Borehole Cores from Pelepah Kanan, Johore PY - 1963/// KW - Iron ore KW - Geology KW - Johor KW - Cassiterite KW - Cassiterite mines and mining KW - Pelepah Kanan (Johore) N2 - Three major rock types occur in the core, limonitic overburden, hornfels and quartz porphyry, but only the limonite and hornfels appear to contain payable cassiterite horizons ER -