Sub-basin-specific Pb and Sr sources in Zn-Pb deposits of the Lower Windsor Group, Nova Scotia, Canada

被引:20
作者
Sangster, DF
Savard, MM
Kontak, DJ
机构
[1] Geol Survey Canada, Ottawa, ON K1A 0E8, Canada
[2] Geol Survey Canada, St Foy, PQ G1V 4C7, Canada
[3] Nova Scotia Dept Nat Resources, Halifax, NS B3J 2T9, Canada
来源
ECONOMIC GEOLOGY AND THE BULLETIN OF THE SOCIETY OF ECONOMIC GEOLOGISTS | 1998年 / 93卷 / 06期
关键词
D O I
10.2113/gsecongeo.93.6.911
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
Several carbonate-hosted lead-zinc deposits, displaying replacement and/or open-space-filling textures, occur in the Lower Windsor Group (Visean) of Nova Scotia, Canada. Many of these deposits are distributed within four sub-basins (Kennetcook, Musquodoboit, Shubenacadie, and River Denys) over a distance of about 300 km. Lead isotope ratios in galena from eight deposits and strontium isotope ratios in ore-stage calcite from two deposits and in sphalerite from one deposit collectively indicate derivation of these elements directly from sources specific to each sub-basin. These sources were identified as immediately underlying basement components or sedimentary rocks derived from them.
引用
收藏
页码:911 / 919
页数:9
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