NJG47-2-07
1967
Lead contents in microcline from some granites and pegmatites
47
2
191-198

Average Pb-contents found in microcline sainples: from the Östfold granite and Östfold pegmatites ˜ 100 ppm, from the Grimstad and Herefoss granites ˜ 90ppm,from some Bamble-Kragertö pegmatites<10ppm,from Iveland-Evje pegmatites ˜ 300 ppm. One locality near Lillesand shows fairly constant Pb-contents in spite of highly varying Sr- and Ba-contents. The results are discussed.

0029-196X
Print