TY - JOUR
T1 - Paragenesis of akatoreite and ganophyllite in the manganiferous rocks of the Haste field, Norberg ore district, central Sweden.
AU - Ounchanum, P.
AU - Morad, S.
PY - 1987
Y1 - 1987
N2 - The chemistry, texture and mode of occurrence of secondary akatoreite and ganophyllite in intercalations of manganiferous rocks in K-rich acid metavolcanics from the Haste field are described. The average of 8 microprobe analyses of akatoreite gave SiO2 36.9, TiO2 0.1, Al2O3 6.2, FeO 0.9, MnO 44.2, MgO 0.8, CaO 0.2, H2O (diff.) 10.7, = 100.0. The average of 5 analyses of ganophyllite gave SiO2 40.1, TiO2 0.2, Al2O3 6.8, FeO 0.6, MnO 34.5, MgO 0.6 CaO 1.0, Na2O 1.0, K2O 3.1, H2O (diff.) 12.1, = 100.0. These manganiferous rocks are represented by four major parageneses, primarily containing urbanite, braunite, richterite, rhodonite, hematite, andradite and spessartine; the secondary akatoreite and ganophyllite have commonly replaced richterite and urbanite.-R.A.H.
AB - The chemistry, texture and mode of occurrence of secondary akatoreite and ganophyllite in intercalations of manganiferous rocks in K-rich acid metavolcanics from the Haste field are described. The average of 8 microprobe analyses of akatoreite gave SiO2 36.9, TiO2 0.1, Al2O3 6.2, FeO 0.9, MnO 44.2, MgO 0.8, CaO 0.2, H2O (diff.) 10.7, = 100.0. The average of 5 analyses of ganophyllite gave SiO2 40.1, TiO2 0.2, Al2O3 6.8, FeO 0.6, MnO 34.5, MgO 0.6 CaO 1.0, Na2O 1.0, K2O 3.1, H2O (diff.) 12.1, = 100.0. These manganiferous rocks are represented by four major parageneses, primarily containing urbanite, braunite, richterite, rhodonite, hematite, andradite and spessartine; the secondary akatoreite and ganophyllite have commonly replaced richterite and urbanite.-R.A.H.
UR - http://www.scopus.com/inward/record.url?scp=0023467004&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0023467004
SN - 0077-7757
VL - 157
SP - 225
EP - 244
JO - Neues Jahrbuch fur Mineralogie, Abhandlungen
JF - Neues Jahrbuch fur Mineralogie, Abhandlungen
IS - 3
ER -