Subjects: *PHONOLITE; *IGNIMBRITE; *SODALITESOUTH Africa
Record details
Subjects: *RARE earths; *GEOCHEMISTRY; *TRACE elementsAFRICA
Subjects: IGNEOUS rocks; PETROGENESIS; MAGMASAUSTRALIA
Subjects: *ACCRETIONARY wedges (Geology); *AGE distribution; *OROGENIC beltsKWAZULU-Natal (South Africa); KALAHARI Desert; SOUTH Africa
Subjects: SPATIAL analysis (Statistics) in archaeology; PROTEROZOIC Era; PALEOZOIC paleontology
Subjects: NESOSILICATES; DETRITAL remanent magnetization; ORDOVICIAN Period
Subjects: GEOCHEMISTRY; TRACE elements; BRECCIA
Subjects: PETROLOGY; STRONTIUM; MARBLEPORTUGAL
Subjects: *MAFIC rocks; *PROVINCES; *PLAGIOCLASE