Search Results - "biogeochemical cycle"

Biogeochemical cycling in the Bering Sea over the onset of major Northern Hemisphere glaciation by Swann, George E.A., Snelling, Andrea M., Pike, Jennifer

“…In suggesting a linkage in biogeochemical cycling between the south Bering Sea and subarctic Northwest Pacific Ocean, mainly via the Kamchatka Strait, this work highlights the need to consider the inter-connectivity of these two systems when future reconstructions are carried out in the region.…”
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Biogeochemical cycles (C, N, S, P and Fe) of modern and ancient microbialites (Western Australia) by Pagès, Anais

“…In this project, the characterisation of microbial communities, biogeochemical cycles and influence of environmental conditions on microbial mat functioning were investigated. …”
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Diel fluctuations in solute distributions and biogeochemical cycling in a hypersaline microbial mat from Shark Bay,WA by Pages, Anais, Welsh, D., Teasdate, P., Grice, Kliti, Vacher, M., Bennett, W., Visscher, P.

“…Studying modern microbial mats can provide insights into how microbial communities interact with biogeochemical cycles. High-resolution, two-dimensional distributions of porewater analytes were determined in the upper three layers of a modern microbial mat from Nilemah, Shark Bay, Western Australia, using colorimetric diffusive equilibration in thin film (DET) and diffusive gradients in thin film (DGT) techniques. …”
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Foliar gypsum formation and litter production in the desert shrub, acacia bivenosa, influences sulfur and calcium biogeochemical cycling in arid habitats. by Robson, T., Stevens, J., Dixon, Kingsley, Reid, N.

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Constraining modern day silicon cycling in Lake Baikal by Panizzo, Virginia, Swann, George E.A., Mackay, Anson W., Vologina, Elena, Alleman, L., Andre, L., Pashley, Vanessa, Horstwood, Matthew S.A.

Subjects: “…Silicon isotopes; δ30SiDSi; Lake Baikal; Silicon export; Biogeochemical cycling; Diatoms…”
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A review of the stable isotope bio-geochemistry of the global silicon cycle and its associated trace elements by Sutton, Jill N., André, Luc, Cardinal, Damien, Conley, Daniel J., de Souza, Gregory F., Dean, Jonathan R., Dodd, Justin, Ehlert, Claudia, Ellwood, Michael J., Frings, Patrick J., Grasse, Patricia, Hendry, Katharine, Leng, Melanie J., Michalopoulos, Panagiotis, Panizzo, Virginia N., Swann, George E.A.

Subjects: “…C – N – O - Si isotopes; biogenic silica; element/Si ratios; biogeochemical cycles; silicon…”
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Biological production and f-ratio in the equatorial Pacific by Turk, D., Antoine, David, Meinen, C., Lewis, M.

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Organic matter interactions with natural manganese oxide and synthetic birnessite by Allard, Sebastien, Gutierrez, L., Fontaine, C., Croué, J., Gallard, H.

“…This study provides a deep insight for both environmental and engineered systems to better understand the impact of NOM adsorption on the biogeochemical cycle of manganese.…”
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A short-term, post-Lomagundi positive C isotope excursion at C. 2.03 Ga recorded by the Wooly Dolomite, Western Australia. by Bekker, A., Krapez, Bryan, Müller, S., Karhu, J.

“…Evidence is presented here that c. 30 myr after the end of the LCIE, the biogeochemical cycle of carbon experienced a short-term (c. 2 myr), high-amplitude (up to +8.4‰ V-PDB) perturbation, recorded in the Horseshoe rift basin, Western Australia. …”
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Bacterial population study in oil-contaminated and uncontaminated soils by Hadry Nordin, Noor Faizul Hadry, Tg Mahassan, Tg Shilatul Hirwany, Khan Chowdhury, Ahmed Jalal

“…Soil provides a vital habitat primarily for bacteria to continue the process of biogeochemical cycle. The remarkable metabolic diversity and capacity of the soil bacteria is increasingly being harnessed for the benefit of humankind. …”
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Long-term phosphorus fertilisation increased the diversity of the total bacterial community and the phoD phosphorus mineraliser group in pasture soils by Tan, Hao, Barret, Matthieu, Mooij, Marlies, Rice, Olivia, Morrissey, John, Dobson, Alan, Griffiths, Bryan, O'Gara, Fergal

“…In conclusion, this study shows that P fertilisation affects the microbial diversity of soil ecosystems, which might potentially modulate the soil biogeochemical cycle.…”
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The characteristics of organic matter influence its interfacial interactions with MnO2 and catalytic oxidation processes by Zhang, S., Gutierrez, L., Niu, X., Qi, F., Croue, Jean-Philippe

“…This study provided a nanoscale understanding of the impact of DOM characteristics on: a) performance of the MnO2coated ceramic membranes in water treatment, and b) biogeochemical cycle of Mn-oxides in the environmental.…”
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Tropical peat soil changes across successive oil palm generations in Sarawak, Malaysia by Ratai, Jicqueline, Teh, Christopher Boon Sung, Tan, Ngai Paing, Mohidin, Hasmah, Goh, Kah Joo, Sangok, Faustina Elfrida, Melling, Lulie

“…The study also highlights the need for further research on the linkage between these changes and greenhouse gas emissions to enhance our understanding of the long-term biogeochemical cycle of oil palm on tropical peatlands.…”
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Nitrogen cycle in the Late Archean ferruginous ocean by Busigny, V., Lebeau, O., Ader, M., Krapez, Bryan, Bekker, A.

“…We propose that N and C biogeochemical cycles were coupled by Fe redox cycling in the water column and in sediments of the Late Archean ocean. …”
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Temporal controls on silicic acid utilisation along the West Antarctic Peninsula by Swann, George E.A., Pike, Jennifer, Leng, Melanie J., Sloane, Hilary J., Snelling, Andrea M.

“…Here we present a record detailing the historical controls on the biogeochemical cycling of silicic acid [Si(OH)4] on the west Antarctica Peninsula margin, a region in which the modern phytoplankton environment is constrained by seasonal sea-ice. …”
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Recovery of the deep biosphere at the Chicxulub impact crater by Quraish, Sohaib Naseer

“…This thesis employed molecular and geochemical analysis, revealing the diverse microbial communities involved in biogeochemical cycling that differed significantly between granite and non-granite rocks from the granitoid basement underlying the Chicxulub impact crater. …”
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Coal-derived rates of atmospheric dust deposition during the Permian by Marshall, Chris, Large, David J., Heavens, Nicholas G.

“…As dust influences both climate and biological productivity, the absence of quantitative dust data limits the comprehensiveness of models of pre-Quaternary climate and biogeochemical cycles. Here, we propose that inorganic matter contained in coal primarily records atmospheric dust deposition. …”
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Sustainable development from resource exploitation perspective by Abd. Rashid Ahmad, Hasnah Ali

“…Although the physical systems of planet earth have the capacity to sustain life supporting processes for a long period of time through various biogeochemical cycles, interruptions of these processes by human development activities could cause impairment of the environment. …”
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The formation of low-temperature sedimentary pyrite and its relationship with biologically-induced processes by Cavalazzi, B., Agangi, Andrea, Barbieri, R., Franchi, F., Gasparotto, G.

“…This contribution is an updated review on sedimentary pyrite and on its role in well-consolidated research topics, such as the biogeochemical cycles and the studies on sediment-hosted ore deposit studies, as well as new frontiers of research, such as astrobiology. …”
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Viral lysis as top-down control of bacterial production in tropical waters of Peninsular Malaysia / Stanley Chai Choon Yip by Stanley Chai , Choon Yip

“…Enhanced virus production will drive the habitat towards heterotrophy as increased viral lysis will promote organic matter supplies for the bacterial growth, and will further affect biogeochemical cycling. …”
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