ISOTOPIC ABUNDANCES OF LEAD IN ESTUARINE SEDIMENTS, SWANSEA BAY, BRISTOL CHANNEL

被引：43

作者：

HAMILTON, EI

CLIFTON, RJ

机构：

[1] Natural Environment Research Council Institute for Marine Environmental Research, Plymouth, PL1 3DH, Prospect Place, The Hoe

来源：

ESTUARINE AND COASTAL MARINE SCIENCE | 1979年 / 8卷 / 03期

关键词：

Bristol Channel; geochronology; isotope composition; lead; mass spectroscopy; pollution distribution; radioactive dating; sediment cores;

D O I：

10.1016/0302-3524(79)90097-5

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

A historical record for the deposition of lead in Swansea Bay, Bristol Channel, U.K. has been determined together with isotopic compositions. Analysis of the isotopic composition of lead in cores, dated by 210Pb-210Po chronology, illustrated a post ~ 1850 influx of lead originating from technically produced materials. Since ~ 1850 there has been a × 3 increase of lead in sediments of which only 25-30% can be accounted for from technical sources; the remainder is presumed to be derived from working of the South Wales Coal Measures. © 1979.

引用

页码：271 / 278

页数：8

共 15 条

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