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Distribution of strontium in sediments of the Minicoy atoll, Lakshadweep

DRS at CSIR-National Institute of Oceanography

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Title Distribution of strontium in sediments of the Minicoy atoll, Lakshadweep
 
Creator Mascarenhas, A.
Siddiquie, H.N.
Topgi, R.S.
 
Subject Geology and Geophysics
sedimentation
calcite
magnesium
geochemistry
sediments
strontium
ISW, India, Laccadive I., Minicoy Atoll
 
Description Sr content in 67 sediment samples collected from the Minicoy reef and lagoon varies from 3960 to 7000 ppm (av. 5630 ppm). The concentration increases from the reef (c 4,000 ppm) in the north and west to the centre of the lagoon (c 7,000 ppm) while it is lower near the island. Distribution of Sr indicates an inverse relation with magnesium (r = -0.37). Sr/Ca x 1000 ratios on the reef and lagoon range from 4.9 to 8.7; being higher in the lagoon and lower on the reef. Low Sr values on the reef and higher values in the lagoon are possibly related to greater contribution of calcareous algae (calcite and rich in Mg and low in Sr) to the reef sediments. Luxuriant coral (aragonite and higher in Sr) growth and greater contribution from corals to the lagoonal sediments. Sr Ca x 1000 ratios seem to indicate that the reef is not very active while the coral knolls in the lagoon are active
 
Date 1995-04-29T09:57:08Z
2017-09-29T13:48:49Z
1995-04-29T09:57:08Z
2017-09-29T13:48:49Z
1980
 
Type Journal Article
 
Identifier Indian Journal of Marine Sciences, vol.9; 1980; 281-283
0379-5136
http://drs.nio.org/drs/handle/2264/6817
 
Language en
 
Relation Indian J Mar Sci
SCI
 
Publisher CSIR-NISCAIR