SURFACE SEDIMENTS AND RELATIONSHIP BETWEEN IT AND MANGANESE NODULES IN CENTRAL PACIFIC OCEAN BASIN

Shcn Huati

44 sediment samples were collected from northeastern part of Cenual Pacific Ocean basin during 1985- 1986 cruise. These sediments were classified into six types: calcareous ooze, calcareous clay,siliceous clay, deep-sea clay, zeolite clay and zcolite rich clay. The distribution, characteristics and controlling factors of these sediments, as well as some relationship between the surface sediments and manganese nodules are discussed in this paper. Deep-sea clay which appears brown or dark brown is distributed widely on the sea Moor at below 5200m water depth. The contents of the coarse fractions in the deep-sea clay is Icss than 15%。and these arc composed dominantly of radiolarian remain and zeolite. The contents of clay is more than 85%. Calcareous sediments(calcareous ooze and calcareous clay) were distributed in the surround of hills. in where water depth is above CCD(5200m ).Its coarse fraction of which consists almost exclusively of the foraminifera shells, of which the contents range between 11%and 90% or so. Zcolite clay is dark brown. The contents of zcolite(phillipsite) in the zcolite clay.

Second Institute of Oceanography, Stale Oceanic Administration, Hangzhou

Received Date: 1987-06-30

Publish Date: 1989-09-10

Abstract: 44 sediment samples were collected from northeastern part of Cenual Pacific Ocean basin during 1985- 1986 cruise. These sediments were classified into six types: calcareous ooze, calcareous clay,siliceous clay, deep-sea clay, zeolite clay and zcolite rich clay. The distribution, characteristics and controlling factors of these sediments, as well as some relationship between the surface sediments and manganese nodules are discussed in this paper. Deep-sea clay which appears brown or dark brown is distributed widely on the sea Moor at below 5200m water depth. The contents of the coarse fractions in the deep-sea clay is Icss than 15%。and these arc composed dominantly of radiolarian remain and zeolite. The contents of clay is more than 85%. Calcareous sediments(calcareous ooze and calcareous clay) were distributed in the surround of hills. in where water depth is above CCD(5200m ).Its coarse fraction of which consists almost exclusively of the foraminifera shells, of which the contents range between 11%and 90% or so. Zcolite clay is dark brown. The contents of zcolite(phillipsite) in the zcolite clay.

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Reference (11)

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SURFACE SEDIMENTS AND RELATIONSHIP BETWEEN IT AND MANGANESE NODULES IN CENTRAL PACIFIC OCEAN BASIN

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