Stressors of emerging concern in deep-sea environments: microplastics, pharmaceuticals, personal care products and deep-sea mining

M Pinheiro, I Martins, J Raimundo, M Caetano… - Science of The Total …, 2023 - Elsevier
Although most deep-sea areas are remote in comparison to coastal zones, a growing body
of literature indicates that many sensitive ecosystems could be under increased stress from …

Lead distribution in coastal and estuarine sediments around India

S Chakraborty, P Chakraborty, BN Nath - Marine pollution bulletin, 2015 - Elsevier
This study describes the geochemical distribution of lead (Pb) and identifies the critical
factors that significantly control Pb distribution and speciation in coastal and estuarine …

Organic dissolved copper speciation across the US GEOTRACES equatorial Pacific zonal transect GP16

A Ruacho, RM Bundy, CP Till, S Roshan, J Wu… - Marine Chemistry, 2020 - Elsevier
Samples for organic copper (Cu)-binding ligand characterization were collected along the
2013 US GEOTRACES Pacific (GP16) cruise transect from Peru to Tahiti. Full depth profiles …

Effects of bottom water dissolved oxygen variability on copper and lead fractionation in the sediments across the oxygen minimum zone, western continental margin of …

P Chakraborty, S Chakraborty, S Jayachandran… - Science of the Total …, 2016 - Elsevier
This study describes the effect of varying bottom-water oxygen concentration on
geochemical fractionation (operational speciation) of Cu and Pb in the underneath …

Distribution, speciation and mobility of metals in sediments of the Tianxiu hydrothermal field, Carlsberg Ridge, Northwest Indian Ocean

Z Qiu, W Fan, X Han, X Chen, X Yin - Journal of Marine Systems, 2023 - Elsevier
Tianxiu is the only ultramafic-hosted hydrothermal field that has been discovered on the
slow-spreading Carlsberg Ridge (CR), northwest Indian Ocean. Sequential extraction has …

Effect of pH on transport and transformation of Cu-sediment complexes in mangrove systems

S Jayachandran, P Chakraborty, D Ramteke… - Marine pollution …, 2018 - Elsevier
Impact of pH variation of overlying water column on transport and transformation of Cu-
sediment complexes in the bottom mangrove sediments was investigated by using different …

Hydrothermal deposition on the Juan de Fuca Ridge over multiple glacial–interglacial cycles

KM Costa, JF McManus, JL Middleton… - Earth and Planetary …, 2017 - Elsevier
Hydrothermal systems play an important role in modern marine chemistry, but little is known
about how they may have varied on 100,000 year timescales. Here we present high …

Relationship between the lability of sediment-bound Cd and its bioaccumulation in edible oyster

P Chakraborty, D Ramteke, S Chakraborty… - Marine Pollution …, 2015 - Elsevier
A linkage between Cd speciation in sediments and its bioaccumulation in edible oyster
(Crassostrea sp.) from a tropical estuarine system was established. Bioaccumulation of Cd …

Geochemical fractionation of Ni, Cu and Pb in the deep sea sediments from the Central Indian Ocean Basin: An insight into the mechanism of metal enrichment in …

S Sensarma, P Chakraborty, R Banerjee… - Geochemistry, 2016 - Elsevier
Metal speciation study in combination with major element chemistry of deep sea sediments
provided possible metal enrichment pathways in sediments collected from environmentally …

Utilizing 234Th/238U disequilibrium to constrain particle dynamics in hydrothermal plumes in the Southwest Indian Ocean

W Yang, X Zhang, M Chen, Z Fang, Y Qiu - Acta Oceanologica Sinica, 2021 - Springer
Metal-enriched minerals have been widely observed near hydrothermal vent fields.
However, the dynamics of particulate metals influenced by hydrothermal activities is poorly …