FRESHWATER FERROMANGANESE CONCRETIONS - CHEMISTRY AND INTERNAL STRUCTURE

被引：27

作者：

HARRISS, RC

TROUP, AG

机构：

[1] Oceanography Department, Florida State University, Tallahassee, FL

[2] Geology Department, McMaster University, Hamilton, Ont.

来源：

SCIENCE | 1969年 / 166卷 / 3905期

关键词：

D O I：

10.1126/science.166.3905.604

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Studies by optical microscopy, x-ray diffraction, and electron probe techniques of ferromanganese concretions from three Canadian lakes reveal chemical banding of amorphous hydrated iron and manganese oxides. The average ratio of iron to manganese in concretions from these lakes varies from 0.43 to 2.56. The concentrations of cobalt, nickel, copper, and lead are one to two orders of magnitude below those reported for oceanic ferromanganese concretions.

引用

页码：604 / &

共 9 条

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[9] MANGANESE NODULES IN LAKE MICHIGAN
ROSSMANN, R
CALLENDE.E
[J]. SCIENCE, 1968, 162 (3858) : 1123 - &

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