Results 11 to 20 of about 26,864 (270)

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+9 more sources

Separation of Crystalline Silicic Acid [PDF]

open access: greenScientific American, 1878
E. E. Laufer
openaire   +3 more sources

A chrome-free combination tanning strategy: based on silicic acid and plant tannin

open access: yesJournal of Leather Science and Engineering, 2021
Silicic acid, commonly derived from cheap and easily available sodium silicate, has recently received great attention for application in leather industry to produce ecological leather with a cleaner approach.
Zetian Zhang   +5 more
doaj   +1 more source

Silica cycling in the ultra-oligotrophic eastern Mediterranean Sea [PDF]

open access: yesBiogeosciences, 2014
Although silica is a key plant nutrient, there have been few studies aimed at understanding the Si cycle in the eastern Mediterranean Sea (EMS). Here we use a combination of new measurements and literature values to explain the silicic acid distribution ...
M. D. Krom, N. Kress, K. Fanning
doaj   +1 more source

Fine defective structure of silicon carbide powders obtained from different starting materials [PDF]

open access: yesScience of Sintering, 2006
The fine defective structure of silicon carbide powders obtained from silicic acid-saccharose, aerosil-saccharose, aerosil-carbon black, and hydrated cellulose-silicic acid gel systems was investigated.
Tomila T.V.   +5 more
doaj   +1 more source

Using silicon isotopes to understand the role of the Southern Ocean in modern and ancient biogeochemistry and climate [PDF]

open access: yes, 2014
The growth of siliceous phytoplankton, mainly diatoms, in the Southern Ocean influences the preformed nutrient inventory in the ocean on a global scale.
Brzezinski, Mark, Hendry, Katharine
core   +2 more sources

Selective removal of silicic acid by a gallic-acid modified resin

open access: yesJournal of Water Reuse and Desalination, 2019
To remove silicic acid from aqueous solutions, a novel gallic acid-type resin (GA-type resin) was prepared by a grafting method. The effects of the adsorption capacity, pH and presence of NaCl, NaNO3, Na2SO4, and NaCO3 salts on the silicic acid removal ...
Shuqin Bai, Jue Han, Cong Du, Wei Ding
doaj   +1 more source

Did silicon aid in the establishment of the first bacterium? [PDF]

open access: yes, 2003
Silicic acid increased numbers of both aerobic and facultatively anaerobic bacteria in ultrapure water incubated under strict oligotrophic conditions; soil extracts acted as the bacterial inoculum. The results are discussed in relation to the possibility
Al-Wajeeh, K.   +3 more
core   +1 more source

Biogenic silica production and diatom dynamics in the Svalbard region during spring [PDF]

open access: yesBiogeosciences, 2018
Diatoms are generally the dominant contributors to the Arctic Ocean spring bloom, which is a key event in regional food webs in terms of capacity for secondary production and organic matter export.
J. W. Krause   +11 more
doaj   +1 more source

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