Record Details

Texture, mineralogy, carbon, nitrogen and phosphorus of Visakhapatnam shelf sediments, east coast of India

NOPR - NISCAIR Online Periodicals Repository

View Archive Info
 
 
Field Value
 
Title Texture, mineralogy, carbon, nitrogen and phosphorus of Visakhapatnam shelf sediments, east coast of India
 
Creator Satyanarayana, D
Panigrahy, P K
Sahu, S D
 
Description 235-240
Based on texture and grain size parameters, the study area is divided into near coastal region comprising of marginal high energy area with predominantly sand (up to 20 ml depth contour), and innershelf region comprising of marginal low energy region with sand-silt-clay (20 to 40 m depth contour). Heavy mineral assemblages indicate dominant occurrence of opaques, amphiboles, pyroxenes, garnets, sillimanite and mica, and minor proportions of monazite, epidote, zircon. The abundance of clay minerals followed the order montomorillonite > illite > kaolinite > chlorite. Seasonal variation of C, N and P are attributed to the fresh water influx and land runoff in monsoon (June-November) and intense photosynthetic activity in post (December-February)/premonsoon (March-May) seasons. Further, their increasing trend from coast to innershelf sediments is explained on the basis of their fine texture in the latter.
 
Date 2016-11-30T09:48:43Z
2016-11-30T09:48:43Z
1993-12
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://nopr.niscair.res.in/handle/123456789/37903
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.22(4) [December 1993]