搜索结果: 1-12 共查到“地质学 dust”相关记录12条 . 查询时间(0.109 秒)
Atmospheric dissolved iron deposition to the global oceans: effects of oxalate-promoted Fe dissolution, photochemical redox cycling, and dust mineralogy
global oceans oxalate-promoted Fe dissolution
2014/12/12
Mineral dust deposition is suggested to be a significant atmospheric supply pathway of bioavailable iron
(Fe) to Fe-depleted surface oceans.
Recent progress in understanding physical and chemical properties of mineral dust
physical and chemical mineral dust Palygorskite
2011/11/11
This paper presents a review of recently acquired knowledge of the physico-chemical properties of mineral dust from Africa and Asia based on data and discussion during the Third International Dust Wor...
Large clean mesocosms and simulated dust deposition: a new methodology to investigate responses of marine oligotrophic ecosystems to atmospheric inputs
marine oligotrophic ecosystems atmospheric inputs Large clean mesocosms
2011/11/14
Intense Saharan dust deposition occurs over large oligotrophic areas in the Mediterranean Sea and in the Tropical Atlantic, and its impact on the biogeochemical functioning of such oligotrophic ecosys...
Composition of Saharan dust and its possible source regions –a review
Saharan dust source identification composition
2011/11/8
The Sahara is the strongest source on earth for mineral dust, supplying up to 109 t per year of material to the atmosphere (about 50 % of the total mineral dust burden). Saharan dust is subject to lon...
Grain size effect on Sr and Nd isotopic compositions in eolian dust: Implications for tracing dust provenance and Nd model age
eolian dust Sr and Nd isotope Nd model age grain size effect isotopic tracing
2017/8/9
Strontium (Sr) and neodymium (Nd) isotopic compositions enable identification of dust sources and reconstruction of atmospheric dispersal pathways. The Sr and Nd isotopic compositions in eolian dust c...
Individual particle characteristics of North African dust under different long-range transport scenarios
African dust Particle morphology CCSEM/EDX Dust origin
2011/11/14
After urban sources, mineral dust in Madrid is the second biggest contributor to PM10, making up 40% on average, of total emissions. Approximately, 50% of the days on which the daily limit of 50 mgm3...
Strontium isotopic and elemental characteristics of calcites in the eolian dust profile of the Chinese Loess Plateau during the past 7 Ma
Chinese Loess Plateau the eolian dust profile strontium isotope of calcite chemical weathering the East Asian summer monsoon
2017/8/10
Strontium isotopic ratios, calcium and strontium contents of calcites in the eolian dust profile during the last 7 Ma at Lingtai were systematically studied. 87Sr/86Sr ratios of calcites change with t...
Heavy dust fall in Beijing, on April 16-17, 2006: Geochemical properties and indications of the dust provenance
dust fall loess geochemical properties quartz oxygen isotope composition dust provenance
2017/8/10
A heavy dust fell in Beijing on April 16-17, 2006. The dust storm formed in middle and western Inner Mongolia, China, under a strong Mongolian Cyclone. During the dust fall, the near-surface wind spee...
期刊信息
篇名
Mineral dust in urban air: Beijing, China
语种
英文
撰写或编译
撰写
作者
Whittaker,A.G. Jones,T.P.; Shao,L.; Shi,Z.; Berube,K.A.; Richards,R.J.
第一作者单位
Cardiff Univ. and 中国矿业大学（北京）
刊物名称
Mineralogical Magazi...
期刊信息
篇名
Microscopy and mineralogy of airborne particles collected during severe-dust storm episodes in Beijing, China.
语种
英文
撰写或编译
撰写
作者
Shi,Z. B.,Shao,L. Y.,Jones,T. P.,Lu S. L.,
第一作者单位
中国矿业大学（北京）
刊物...
Aerosol flow tube study of the heterogeneous interaction between submicron mineral dust particles and gaseous nitric acid
aerosol flow tube heterogeneous interaction submicron mineral dust particles gaseous nitric acid
2011/11/14
Aerosol flow tube study of the heterogeneous interaction between submicron mineral dust particles and gaseous nitric acid.
Relationships between respiratory diseases and quartz-rich dust in Idaho, U.S.A.
respiratory diseases quartz-rich dust Idaho PM10
2012/3/31
Quartz°(TM)one of the most abundant minerals in the Earth°Os crust°(TM)has been deemed a human c
cinogen by the International Agency for Research on Cancer (IARC), with the main threat to humans
bei...