Results 21 to 30 of about 247,595 (300)

Mantle Hg isotopic heterogeneity and evidence of oceanic Hg recycling into the mantle

Nature Communications, 2022
This work demonstrates distinct mass-independent mercury isotope fractionation in global basalts, which suggests mantle Hg isotope heterogeneity and reveals large-scale translithospheric Hg recycling via plate tectonics.
Runsheng Yin, Di Chen, Xin Pan, Changzhou Deng, Liemeng Chen, Xieyan Song, Songyue Yu, Chuanwei Zhu, Xun Wei, Yue Xu, Xinbin Feng, Joel D. Blum, Bernd Lehmann   +12 more
doaj   +1 more source

Observations of atmospheric mercury in China: a critical review [PDF]

Atmospheric Chemistry and Physics, 2015
China presently contributes the largest amount of anthropogenic mercury (Hg) emission into the atmosphere in the world. Over the past decade, numerous studies have been conducted to characterize the concentration and forms of atmospheric Hg in China ...
X. W. Fu, H. Zhang, B. Yu, X. Wang, C.-J. Lin, X. B. Feng   +5 more
doaj   +1 more source

A comparison of geochemical features of source rocks of Eocene Wenchang Formation in the deep and shallow water zones of Pearl River Mouth Basin, SE China

Shiyou shiyan dizhi, 2022
The Pearl River Mouth Basin (PRMB) is one of the important offshore targets for oil and gas exploration in China and has great potential of oil and gas resources.
Liping YUAN, Wenmin JIANG, Yun LI, Lin ZHANG, Jianfeng WANG, Wei WANG, Yongqiang XIONG   +6 more
doaj   +1 more source

Deep lithospheric dynamics beneath the Sierra Nevada during the Mesozoic and Cenozoic as inferred from xenolith petrology [PDF]

, 2001
Peridotite xenoliths erupted in late Miocene basalts (~8 Ma) in the central Sierra Nevada sample a lithosphere that is vertically stratified in terms of age and thermal history.
Brimhall, George H., Jr., Lee, Cin-Ty, Rudnick, Roberta L.   +2 more
core   +1 more source

Revised Pacific-Antarctic plate motions and geophysics of the Menard Fracture Zone [PDF]

, 2008
A reconnaissance survey of multibeam bathymetry and magnetic anomaly data of the Menard Fracture Zone allows for significant refinement of plate motion history of the South Pacific over the last 44 million years.
Atwater, Atwater, Bernard, Briais, Cande, Cande, Cande, Cande, Cande, Cande, Chang, Chang, Cochran, DeMets, Gallo, Gans, Goodwillie, Gordon, Géli, Hellinger, Joann M. Stock, Klingelhoefer, Krijgsman, Lodolo, Lonsdale, Lonsdale, Lonsdale, Lourens, Macdonald, Marcel B. Croon, Marks, McAdoo, Menard, Menard, Molnar, Ogg, Pitman, Royer, Royer, Royer, Sandwell, Sandwell, Searle, Steven C. Cande, Stock, Tebbens, Tebbens, Weiland   +47 more
core   +1 more source

Impact of formation water on the generation of H2S in condensate reservoirs: a case study from the deep Ordovician in the Tazhong Uplift of the Tarim Basin, NW China

Petroleum Science, 2017
A number of condensate reservoirs with high concentrations of H2S have been discovered in the deep dolomite reservoirs of the lower Ordovician Yingshan Formation (O1y) in the Tazhong Uplift, where the formation water has a high pH value.
Jin Su, Yu Wang, Xiao-Mei Wang, Kun He, Hai-Jun Yang, Hui-Tong Wang, Hua-Jian Wang, Bin Zhang, Ling Huang, Na Weng, Li-Na Bi, Zhi-Hua Xiao   +11 more
doaj   +1 more source

Spatial distribution of mercury deposition fluxes in Wanshan Hg mining area, Guizhou province, China [PDF]

Atmospheric Chemistry and Physics, 2012
The legacy of long-term mining activities in Wanshan mercury (Hg) mining area (WMMA), Guizhou, China including a series of environmental issues related to Hg pollution. The spatial distribution of gaseous elemental mercury (Hg0) concentrations in ambient
Z. H. Dai, X. B. Feng, J. Sommar, P. Li, X. W. Fu   +4 more
doaj   +1 more source

Cretaceous-to-recent record of elevated 3He/4He along the Hawaiian-Emperor volcanic chain [PDF]

, 2004
Helium isotopes are a robust geochemical tracer of a primordial mantle component in hot spot volcanism. The high 3He/4He (up to 35 RA, where RA is the atmospheric 3He/4He ratio of 1.39 × 10−6) of some Hawaiian Island volcanism is perhaps the classic ...
Duncan, R. A., Farley, K. A., Graham, D. W., Keller, R. A., Lupton, J. E.   +4 more
core   +1 more source

Seasonal variations in metallic mercury (Hg⁰) vapor exchange over biannual wheat–corn rotation cropland in the North China Plain [PDF]

Biogeosciences, 2016
Air–surface gas exchange of Hg0 was measured in five approximately bi-weekly campaigns (in total 87 days) over a wheat–corn rotation cropland located on the North China Plain (NCP) using the relaxed eddy accumulation (REA) technique.
J. Sommar, W. Zhu, L. Shang, C.-J. Lin, X. Feng   +4 more
doaj   +1 more source

New Theory of the Earth [PDF]

, 2007
New Theory of the Earth is an interdisciplinary advanced textbook on all aspects of the interior of the Earth and its origin, composition, and evolution: geophysics, geochemistry, dynamics, convection, mineralogy, volcanism, energetics and thermal ...
Anderson, Don L.
core   +2 more sources