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Visser, D. (author), Thijssen, P.M.H (author)Hogbomite is reported from two upper-amphibolite and granulite-facies, sapphirine-bearing, Al-Mg-Fe-rich and silica-poor lens-shaped layers within the Bamble Sector, south Norway. Primary assemblages, indicating peak metamorphic conditions of 773-844 °C at 7 kbar (Mg-Fe exchange thermometry), are spinel-sapphirine-biotite-gedrite, spinel-corudum...report 1991
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- Thijssen, P.H.M. (author), Visser, D. (author) report 1991
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- Visser, D. (author), Senior, A. (author) report 1988