Prismatine and ferrohögbomite- 2N2S in granulite-facies Fe-oxide lenses in the Eastern Ghats Belt at Venugopalapuram, Vizianagaram district, Andhra Pradesh, India: do such lenses have a tourmaline-enriched lateritic precursor?

PRELIMINARY SURVEY OF ARCELLACEANS (THECAMOEBIANS) AS LIMNOLOGICAL INDICATORS IN TROPICAL LAKE SENTANI, IRIAN JAYA, INDONESIA

The Kalahari manganese field; an enigmatic association of iron and manganese

Lead isotope patterns in Proterozoic stratiform mineralization in the Bushmanland Group, Namaqua Province, South Africa

Tourmalinite mineralization in the late Proterozoic Kuiseb Formation of the Damara Orogen, central Namibia; evidence for a replacement origin

Pan-African tungsten skarn mineralization at the Otjua Prospect, central Namibia

The geology of the Steenkampskraal monazite deposit, South Africa; implications for REE-Th-Cu mineralization in charnockite-granulite terranes

The Ghost Lake Batholith, Superior Province of northwestern Ontario; a fertile, S-type, peraluminous granite-rare-element pegmatite system

Gneissic Alkalic Rocks and Carbonatites in the Frenchman's Cap Gneiss Dome, Shuswap Complex, British Columbia

The Tremolite Isograd near Marble Lake, Ontario

Optical and x-ray data for iron-rich orthopyroxenes from northern Quebec

Sillimanite from two contact aureoles

POTASSIUM-ARGON AGES IN NORTHERN MANITOBA