Results 61 to 70 of about 105,636 (305)

Ozone Formation at a Suburban Site in the Pearl River Delta Region, China: Role of Biogenic Volatile Organic Compounds

Atmosphere, 2023
Ozone (O3) is becoming an increasingly concerning air quality problem in China, and previous O3 control strategies focused primarily on reducing anthropogenic volatile organic compounds (AVOCs), while neglecting the role of biogenic VOCs (BVOCs) in O3 ...
Jun Wang, Yanli Zhang, Shaoxuan Xiao, Zhenfeng Wu, Xinming Wang   +4 more
doaj   +1 more source

Evidence From Microscopy and U–Pb Geochronology as a Clue to the Influence of the Cretaceous Magmatism in the Diagenesis of Pre‐Salt Carbonate Reservoirs in the Santos Basin (Brazil)

Geological Journal, EarlyView.
Carbonates from Santos Basin revealed U–Pb ages correlated with basalt ages (A), suggesting that they were formed during magmatic events. These events placed hot CO2 in the reservoir, which, when mixed with carbonate‐rich cold water (B), led to thermal convection, enabling the formation of the U contained in the carbonates.
Marco António Ruivo de Castro e Brito, Cristiano Leite Sombra, Davy Raeder Brandão, Cleverson Guizan Silva, Sidney Luiz de Matos Mello, Eugênio Vaz dos Santos Neto, Rui Jorge Fernandes Baptista, Ramsés Capilla, Luiz Antônio Pierantoni Gambôa   +8 more
wiley   +1 more source

Human-induced fire regime shifts during 19th century industrialization: A robust fire regime reconstruction using northern Polish lake sediments

, 2019
Fire regime shifts are driven by climate and natural vegetation changes, but can be strongly affected by human land management. Yet, it is poorly known how humans have influenced fire regimes prior to active wildfire suppression. Among the last 250 years,
Blarquez, Olivier, Brauer, Achim, Brykała, Dariusz, Dietze, Elisabeth, Dietze, Michael, Hopmans, Ellen C., Jażdżewski, Krzysztof, Obremska, Milena, Organic geochemistry, Organic geochemistry & molecular biogeology, Ott, Florian, Pieńczewska, Anna, Schouten, Stefan, Schreuder, Laura T., Słowiński, Michał   +14 more
core   +1 more source

Molecular Palaeontology Prospects From Exceptionally Preserved Eocene Brackish‐Water Bivalve Batissa sitakaraensis (Venerida: Corbiculidae) From Hokkaido, Japan

Geological Journal, EarlyView.
This study reports the exceptional preservation of the Eocene freshwater bivalve Batissa sitakaraensis from Hokkaido, Japan. Multimodal analyses reveal that both the aragonitic shell mineralogy and the delicate organic periostracum retain their original structural and chemical characteristics after millions of years.
Taro Yoshimura, Kazuki Hirota, Hiroyuki Kagi, Takashi Matsubara, Takenori Sasaki   +4 more
wiley   +1 more source

Chemical and stable carbon isotopic composition of PM_2.5 from on-road vehicle emissions in the PRD region and implications for vehicle emission control policy [PDF]

Atmospheric Chemistry and Physics, 2015
Vehicle emissions are a major source of urban air pollution. In recent decade, the Chinese government has introduced a range of policies to reduce vehicle emissions.
S. Dai, X. Bi, L. Y. Chan, J. He, B. Wang, X. Wang, P. Peng, G. Sheng, J. Fu   +8 more
doaj   +1 more source

Geochemical and Geological Investigation of Skarn‐Type Pb–Zn Mineralization in Hastanetepe (Balya‐Balıkesir, Türkiye): An Approach Based on Fluid Inclusions, Sulphur Isotopes and Geochemical Data

Geological Journal, EarlyView.
Integrated petrographic, mineralogical and geochemical data from the Hastanetepe Pb–Zn deposit (Balya, Türkiye) reveal multi‐stage hydrothermal alteration and a magmatic sulphur source. Fluid inclusion and sulphur isotope results indicate a complex fluid evolution responsible for skarn‐type Pb–Zn mineralization along limestone–dacite contacts ...
Esra Ünal‐Çakır
wiley   +1 more source

Comprehensive characterization of humic-like substances in smoke PM_2.5 emitted from the combustion of biomass materials and fossil fuels [PDF]

Atmospheric Chemistry and Physics, 2016
Humic-like substances (HULIS) in smoke fine particulate matter (PM2.5) emitted from the combustion of biomass materials (rice straw, corn straw, and pine branch) and fossil fuels (lignite coal and diesel fuel) were comprehensively studied in this work.
X. Fan, X. Fan, S. Wei, S. Wei, M. Zhu, M. Zhu, J. Song, P. Peng   +7 more
doaj   +1 more source

Silicate weathering and carbon cycle controls on the Oligocene-Miocene transition glaciation [PDF]

, 2017
Changes in both silicate weathering rates and organic carbon burial have been proposed as drivers of the transient “Mi-1” glaciation event at the Oligocene-Miocene transition (OMT; ~23 Ma).
Algeo, Anand, Armstrong McKay, Arndt, Baar, Bainbridge, Baker, Barker, Beer, Beer, Bemis, Bemis, Boyle, Boyle, Boyle, Broecker, Burton, Burton, Channell, DeConto, Dekens, Delaney, Delaney, Delaney, Diester-Haass, Florindo, Galy, Garcia, Gasson, Green, Griffith, Hain, Hales, Hall, Hall, Hardie, Harrison, Hathorne, Havach, Henson, Heuser, Hinsbergen, Huh, Joseph A. Stewart, Katz, Kısakűrek, Kroopnick, Lea, Lea, Lear, Lear, Liebrand, Liebrand, Lippert, Locarnini, Lohmann, Lorens, Mangini, Marriott, Marriott, Mashiotta, Mawbey, McArthur, McCorkle, McManus, Meece, Merico, Miller, Misra, Morozov, Oliver, Oxburgh, Oxburgh, Pallavi Anand, Paul, Paul A. Wilson, Pearson, Peucker-Ehrenbrink, Peucker-Ehrenbrink, Pälike, Pälike, Rachael H. James, Ravizza, Raymo, Rickaby, Ripperger, Rosenthal, Rosenthal, Rosenthal, Rowley, Russell, Russell, Russell, Sexton, Shipboard Scientific Party, Smith, Stallard, Stewart, Stewart, Tachikawa, Takahashi, Thomson, Tyson, Veizer, Vigier, Walker, West, Zachos   +107 more
core   +3 more sources

Late Quaternary climatic variability in the Eastern Mediterranean recorded in Hermes Cave, Corinth Rift, Greece

Journal of Quaternary Science, EarlyView.
ABSTRACT The Greek peninsula lies at the intersection of major atmospheric circulation systems, making it a key location for reconstructing past climate variability in the Eastern Mediterranean. In this study, we present a new high‐resolution multi‐proxy speleothem record from Hermes Cave, located on the shoulder of the Corinth Rift in southern Greece.
Ch. Pennos, S. Pechlivanidou, S. Modestou, A. Persoiu, S.F.M. Breitenbach, U. Ninnemann, R.L. Gawthorpe, J. Maccali, S‐E. Lauritzen, R.Ø. Skoglund, Th. Thuesen   +10 more
wiley   +1 more source

Polycyclic aromatic hydrocarbons (PAHs) in Chinese forest soils: profile composition, spatial variations and source apportionment

Scientific Reports, 2017
Previous studies reported that forest ecosystems can play a vital role in scavenging anthropogenic polycyclic aromatic hydrocarbons (PAHs) and act as primary reservoirs of these environmental pollutants.
Jabir Hussain Syed, Mehreen Iqbal, Guangcai Zhong, Athanasios Katsoyiannis, Ishwar Chandra Yadav, Jun Li, Gan Zhang   +6 more
doaj   +1 more source