TY - JOUR

T1 - Peculiarities of the chemical composition of plagioclase in Rocks Talnakh Ore Field (North-West of the Siberian Platform)

AU - Zolotarev, A. A.

AU - Aplonov, V. S.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - In this paper we have summarised data from representative collection of plagioclase compositions (56 wet chemistry and 142 microprobe analyses) from various rock types of different intrusions within the Talnakh ore field. It is shown that chemical composition of plagioclase covers whole solid solution between albite and anortite. No clear relationships have been established between plagioclase composition and magnesium number of host rocks. This is related to zonal structure and polychronic formation of the studied complexes, as well as problems with analytical data. Our estimations suggest that about 10% of used plagioclase analyses are characterized by random or systematic errors. Refs 20. Figs 4.

AB - In this paper we have summarised data from representative collection of plagioclase compositions (56 wet chemistry and 142 microprobe analyses) from various rock types of different intrusions within the Talnakh ore field. It is shown that chemical composition of plagioclase covers whole solid solution between albite and anortite. No clear relationships have been established between plagioclase composition and magnesium number of host rocks. This is related to zonal structure and polychronic formation of the studied complexes, as well as problems with analytical data. Our estimations suggest that about 10% of used plagioclase analyses are characterized by random or systematic errors. Refs 20. Figs 4.

KW - Chemical composition

KW - Plagioclase

KW - Talnakh ore field

UR - http://www.scopus.com/inward/record.url?scp=85042794525&partnerID=8YFLogxK

M3 - статья

AN - SCOPUS:85042794525

VL - 2014

SP - 25

EP - 31

JO - Вестник Санкт-Петербургского университета. Науки о Земле

JF - Вестник Санкт-Петербургского университета. Науки о Земле

SN - 1812-9323

IS - 3

ER -