Roychoudhury, Alakendra N.: search on Z-Library

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1

Partitioning and mobility of trace metals in the Blesbokspruit: Impact assessment of dewatering of mine waters in the East Rand, South Africa

Alakendra N. Roychoudhury, Michael F. Starke

Journal:

Applied Geochemistry

Year:

2006

Language:

english

File:

PDF, 1.72 MB

english, 2006

2

Synchrotron X-ray radiation and the African earth sciences: A critical review

von der Heyden, Bjorn P., Benoit, Julien, Fernandez, Vincent, Roychoudhury, Alakendra N.

Journal:

Journal of African Earth Sciences

Year:

2020

File:

PDF, 3.68 MB

2020

3

Spatial and seasonal variations in depth profile of trace metals in saltmarsh sediments from Sapelo Island, Georgia, USA

Alakendra N. Roychoudhury

Journal:

Estuarine, Coastal and Shelf Science

Year:

2007

Language:

english

File:

PDF, 954 KB

english, 2007

4

Kinetics of microbially mediated reactions: dissimilatory sulfate reduction in saltmarsh sediments (Sapelo Island, Georgia, USA)

Alakendra N Roychoudhury, Philippe Van Cappellen, Joel E Kostka, Eric Viollier

Journal:

Estuarine, Coastal and Shelf Science

Year:

2003

Language:

english

File:

PDF, 288 KB

english, 2003

5

Major and trace element geochemistry in Zeekoevlei, South Africa: A lacustrine record of present and past processes

Supriyo Kumar Das, Joyanto Routh, Alakendra N. Roychoudhury, J. Val Klump

Journal:

Applied Geochemistry

Year:

2008

Language:

english

File:

PDF, 370 KB

english, 2008

6

Ubiquitous Presence of Fe(II) in Aquatic Colloids and Its Association with Organic Carbon

von der Heyden, Bjorn P., Hauser, Emily J., Mishra, Bhoopesh, Martinez, Gustavo A., Bowie, Andrew R., Tyliszczak, Tolek, Mtshali, Thato N., Roychoudhury, Alakendra N., Myneni, Satish C. B.

Journal:

Environmental Science & Technology Letters

Year:

2014

Language:

english

File:

PDF, 1.79 MB

english, 2014

7

Erratum to “Adsorption and surface complexation modeling of palladium, rhodium and platinum in surficial semi-arid soils and sediments” [Appl. Geochem. 24(1), 86–95]

Aboubakar Sako, Lidia Lopes, Alakendra N. Roychoudhury

Journal:

Applied Geochemistry

Year:

2010

Language:

english

File:

PDF, 77 KB

english, 2010

8

Kinetics of Sulfate Reduction in a Coastal Aquifer Contaminated with Petroleum Hydrocarbons

Alakendra N. Roychoudhury and Dean W. McCormick

Journal:

Biogeochemistry

Year:

2006

Language:

english

File:

PDF, 2.90 MB

english, 2006

9

Kinetics of Sulfate Reduction in a Coastal Aquifer Contaminated with Petroleum Hydrocarbons

Alakendra N. Roychoudhury, Dean W. McCormick

Journal:

Biogeochemistry

Year:

2006

Language:

english

File:

PDF, 464 KB

english, 2006

10

Adsorption and surface complexation modeling of palladium, rhodium and platinum in surficial semi-arid soils and sediment

Aboubakar Sako, Lidia Lopes, Alakendra N. Roychoudhury

Journal:

Applied Geochemistry

Year:

2009

Language:

english

File:

PDF, 969 KB

english, 2009

11

The role of evaporation on the formation of secondary Cu-hydroxy minerals in the arid Namaqualand soil system of South Africa

Clarke, Catherine E., le Roux, Stephan G., Roychoudhury, Alakendra N.

Journal:

Applied Geochemistry

Year:

2014

Language:

english

File:

PDF, 1.51 MB

english, 2014

12

Sulfate Respiration in Extreme Environments: A Kinetic Study

Roychoudhury, Alakendra

Journal:

Geomicrobiology

Year:

2004

Language:

english

File:

PDF, 264 KB

english, 2004

13

Iron-Rich Nanoparticles in Natural Aquatic Environments

von der Heyden, Bjorn, Roychoudhury, Alakendra, Myneni, Satish

Journal:

Year:

2019

Language:

english

File:

PDF, 2.18 MB

english, 2019

14

Phosphorus dynamics in shallow eutrophic lakes: an example from Zeekoevlei, South Africa

Supriyo Kumar Das, Joyanto Routh, Alakendra N. Roychoudhury, J. Val Klump, Rajesh Kumar Ranjan

Journal:

Year:

2009

Language:

english

File:

PDF, 344 KB

english, 2009

15

Redox pathways in a petroleum contaminated shallow sandy aquifer: Iron and sulfate reductions

Alakendra N. Roychoudhury, Greg L. Merrett

Journal:

Science of The Total Environment

Year:

2006

Language:

english

File:

PDF, 626 KB

english, 2006

16

Climatic variability in Mfabeni peatlands (South Africa) since the late Pleistocene

Baker, Andrea, Pedentchouk, Nikolai, Routh, Joyanto, Roychoudhury, Alakendra N.

Journal:

Quaternary Science Reviews

Year:

2017

Language:

english

File:

PDF, 1.68 MB

english, 2017

17

Phytoplankton response in growth, photophysiology and community structure to iron and light in the Polar Frontal Zone and Antarctic waters

Viljoen, Johannes J., Philibert, Raïssa, Van Horsten, Natasha, Mtshali, Thato, Roychoudhury, Alakendra N., Thomalla, Sandy, Fietz, Susanne

Journal:

Deep Sea Research Part I: Oceanographic Research Papers

Year:

2018

Language:

english

File:

PDF, 945 KB

english, 2018

18

Rare earth and trace element geochemistry of termite mounds in central and northeastern Namibia: Mechanisms for micro-nutrient accumulation

Aboubakar Sako, Anthony J. Mills, Alakendra N. Roychoudhury

Journal:

Year:

2009

Language:

english

File:

PDF, 974 KB

english, 2009

19

Biomarker records of palaeoenvironmental variations in subtropical Southern Africa since the late Pleistocene: Evidences from a coastal peatland

Baker, Andrea, Routh, Joyanto, Roychoudhury, Alakendra N.

Journal:

Palaeogeography, Palaeoclimatology, Palaeoecology

Year:

2016

Language:

english

File:

PDF, 1.26 MB

english, 2016

20

Rates and Controls of Anaerobic Microbial Respiration across Spatial and Temporal Gradients in Saltmarsh Sediments

Joel E. Kostka, Alakendra Roychoudhury and Philippe Van Cappellen

Journal:

Biogeochemistry

Year:

2002

Language:

english

File:

PDF, 816 KB

english, 2002

21

Biogeochemical Cycles of Manganese and Iron at the Oxic−Anoxic Transition of a Stratified Marine Basin (Orca Basin, Gulf of Mexico)

Van Cappellen, Philippe, Viollier, Eric, Roychoudhury, Alakendra, Clark, Lauren, Ingall, Ellery, Lowe, Kristine, Dichristina, Thomas

Journal:

Environmental Science & Technology

Year:

1998

Language:

english

File:

PDF, 135 KB

english, 1998

22

n -Alkan-2-one biomarkers as a proxy for palaeoclimate reconstruction in the Mfabeni fen, South Africa

Baker, Andrea, Routh, Joyanto, Roychoudhury, Alakendra N.

Journal:

Organic Geochemistry

Year:

2018

Language:

english

File:

PDF, 1.45 MB

english, 2018

23

Time dependent calibration of a sediment extraction scheme

Alakendra N. Roychoudhury

Journal:

Marine Pollution Bulletin

Year:

2006

Language:

english

File:

PDF, 162 KB

english, 2006

24

Sources and historic changes in polycyclic aromatic hydrocarbon input in a shallow lake, Zeekoevlei, South Africa

Supriyo Kumar Das, Joyanto Routh, Alakendra N. Roychoudhury

Journal:

Organic Geochemistry

Year:

2008

Language:

english

File:

PDF, 188 KB

english, 2008

25

A NEW IDEA IN MARSH CORING

Inglett, Patrick W., Viollier, Eric, Roychoudhury, Alakendra N., Van Cappellen, Philippe

Journal:

Soil Science Society of America Journal

Year:

2004

File:

PDF, 115 KB

2004

26

Salt marsh pore water geochemistry does not correlate with microbial community structure

Carla M. Koretsky, Philippe Van Cappellen, Thomas J. DiChristina, Joel E. Kostka, Kristi L. Lowe, Charles M. Moore, Alakendra N. Roychoudhury, Eric Viollier

Journal:

Estuarine, Coastal and Shelf Science

Year:

2005

Language:

english

File:

PDF, 777 KB

english, 2005

27

Pyritization: a palaeoenvironmental and redox proxy reevaluated

Alakendra N. Roychoudhury, Joel E. Kostka, Philippe Van Cappellen

Journal:

Estuarine, Coastal and Shelf Science

Year:

2003

Language:

english

File:

PDF, 366 KB

english, 2003

28

Rates and controls of anaerobic microbial respiration across spatial and temporal gradients in saltmarsh sediments

Joel E. Kostka, Alakendra Roychoudhury, Philippe Van Cappellen

Journal:

Biogeochemistry

Year:

2002

Language:

english

File:

PDF, 668 KB

english, 2002

29

Geochemical evaluation of soils and groundwater affected by infiltrating effluent from evaporation ponds of a heavy mineral processing facility, West Coast, South Africa

Roychoudhury, Alakendra N., Petersen, Jacques

Journal:

Journal of Geochemical Exploration

Year:

2014

Language:

english

File:

PDF, 1.55 MB

english, 2014

30

Geochemistry of Al and Fe in freshwater and coastal water colloids from the west coast of Southern Africa

von der Heyden, Bjorn P., Frith, Matthew G., Bernasek, Steven, Tylizszak, Tolek, Roychoudhury, Alakendra N., C. B. Myneni, Satish

Journal:

Geochimica et Cosmochimica Acta

Year:

2018

Language:

english

File:

PDF, 1.58 MB

english, 2018

31

Elemental (C, N, H and P) and stable isotope (δ15N and δ13C) signatures in sediments from Zeekoevlei, South Africa: a record of human intervention in the lake

Supriyo Kumar Das, Joyanto Routh, Alakendra N. Roychoudhury, J. Val Klump

Journal:

Journal of Paleolimnology

Year:

2008

Language:

english

File:

PDF, 472 KB

english, 2008

32

Dissimilatory sulfate reduction in hypersaline coastal pans: Activity across a salinity gradient

Donovan Porter, Alakendra N. Roychoudhury, Donald Cowan

Journal:

Geochimica et Cosmochimica Acta

Year:

2007

Language:

english

File:

PDF, 1.26 MB

english, 2007

33

Cobalt Uptake and Resistance to Trace Metals in Comamonas testosteroni Isolated From a Heavy-Metal Contaminated Site in the Zambian Copperbelt

Staniland, Sarah, Coppock, Michael, Tuffin, Marla, van Zyl, Lonnie, Roychoudhury, Alakendra N., Cowan, Donald

Journal:

Geomicrobiology

Year:

2010

Language:

english

File:

PDF, 1.17 MB

english, 2010

34

Mobilisation of Iron from rocks in a fractured aquifer: Lithological and geochemical controls

Smith, Meris, Roychoudhury, Alakendra N.

Journal:

Applied Geochemistry

Year:

2013

Language:

english

File:

PDF, 2.09 MB

english, 2013

35

Molybdenum sequestration in saltmarsh sediments: Role of sulfate reduction, reactive iron and vegetation

Roychoudhury, Alakendra N.

Journal:

Geochimica et Cosmochimica Acta

Year:

2006

Language:

english

File:

PDF, 34 KB

english, 2006

36

Methods for analyzing the concentration and speciation of major and trace elements in marine particles

Lam, Phoebe J., Twining, Benjamin S., Jeandel, Catherine, Roychoudhury, Alakendra, Resing, Joseph A., Santschi, Peter H., Anderson, Robert F.

Journal:

Progress in Oceanography

Year:

2015

Language:

english

File:

PDF, 657 KB

english, 2015

37

Biomarker evidence of macrophyte and plankton community changes in Zeekoevlei, a shallow lake in South Africa

Supriyo Kumar Das, Joyanto Routh, Alakendra N. Roychoudhury

Journal:

Journal of Paleolimnology

Year:

2009

Language:

english

File:

PDF, 501 KB

english, 2009

38

Southern Ocean Seasonal Cycle Experiment 2012: Seasonal scale climate and carbon cycle links

Swart, Sebastiaan, Chang, Nicolette, Fauchereau, Nicolas, Joubert, Warren, Lucas, Mike, Mtshali, Thato, Roychoudhury, Alakendra, Tagliabue, Alessandro, Thomalla, Sandy, Waldron, Howard, Monteiro, Pedr

Journal:

South African Journal of Science

Year:

2012

Language:

english

File:

PDF, 3.15 MB

english, 2012

39

Connecting pigment composition and dissolved trace elements to phytoplankton population in the southern Benguela Upwelling zone (St. Helena Bay)

Das, Supriyo Kumar, Routh, Joyanto, Roychoudhury, Alakendra N., Veldhuis, Marcel J.W., Ismail, Hassan E.

Journal:

Journal of Marine Systems

Year:

2017

Language:

english

File:

PDF, 1.16 MB

english, 2017

40

Spatial characteristics of sediment trace metals in an eastern boundary upwelling retention area (St. Helena Bay, South Africa): A hydrodynamic–biological pump hypothesis

Pedro M.S. Monteiro, Alakendra N. Roychoudhury

Journal:

Estuarine, Coastal and Shelf Science

Year:

2005

Language:

english

File:

PDF, 692 KB

english, 2005

41

Application, Chemical Interaction and Fate of Iron Minerals in Polluted Sediment and Soils

von der Heyden, Bjorn P., Roychoudhury, Alakendra N.

Journal:

Current Pollution Reports

Year:

2015

Language:

english

File:

PDF, 2.27 MB

english, 2015

42

Investigating nanoscale mineral compositions: Iron L 3 -edge spectroscopic evaluation of iron oxide and oxy-hydroxide coordination

von der Heyden, Bjorn P., Roychoudhury, Alakendra N., Tyliszczak, Tolek, Myneni, Satish C.B.

Journal:

American Mineralogist

Year:

2017

Language:

english

File:

PDF, 2.93 MB

english, 2017

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