TY - JOUR
T1 - Chemistry of feldspars in the Ilimaussaq augite syenite with additional data on some other minerals.
AU - Larsen, Lotte Melchior
PY - 1981/12/31
Y1 - 1981/12/31
N2 - The feldspars af the augite sycnitc have been described by Ussing (1912,
p. 188), Hamilton (1964) and Ferguson (1964, 1970, pp. 49-51). These
allthors used optical and X-ray methods giving only crude clues to
chemistry. However, Hamilton (1964, pp. 28-29) noted the scarce
occurrence ef corroded oligoclase cores, and Ferguson (1970) nored that
the Ab/Or ratio is higher in feldspar from the augite syenite than in
feldspar from the agpaitic rocks. Belaw are reported the results af a
microprobe reconnaissance study ef feldspars from the augitc syenite,
together witil microprobe data on some other minerals. Thc two samples
selected are the same as used in a previous investigation of the mafic
minerals (Larsen, 1976).
AB - The feldspars af the augite sycnitc have been described by Ussing (1912,
p. 188), Hamilton (1964) and Ferguson (1964, 1970, pp. 49-51). These
allthors used optical and X-ray methods giving only crude clues to
chemistry. However, Hamilton (1964, pp. 28-29) noted the scarce
occurrence ef corroded oligoclase cores, and Ferguson (1970) nored that
the Ab/Or ratio is higher in feldspar from the augite syenite than in
feldspar from the agpaitic rocks. Belaw are reported the results af a
microprobe reconnaissance study ef feldspars from the augitc syenite,
together witil microprobe data on some other minerals. Thc two samples
selected are the same as used in a previous investigation of the mafic
minerals (Larsen, 1976).
UR - http://www.scopus.com/inward/record.url?scp=0019660289&partnerID=8YFLogxK
U2 - 10.34194/rapggu.v103.7728
DO - 10.34194/rapggu.v103.7728
M3 - Article
AN - SCOPUS:0019660289
VL - 103
SP - 31
EP - 37
JO - Rapport Grønlands Geologiske Undersøgelse
JF - Rapport Grønlands Geologiske Undersøgelse
SN - 0418-6559
ER -