Colloquium Paper: Surface geochemistry of the clay minerals Clay minerals are layer type aluminosilicates that figure in terrestrial biogeochemical cycles, in the buffering capacity of the oceans, and in the contain... Garrison,Sposito,Neal,... - 《Proceedings of the National Academy of Sciences ...
In the northern South China Sea, pockmarks are widely distributed on the seabed offshore on the southwestern Xisha Uplift. The mineralogy and geochemistry of the clay minerals and surface sediments from the pockmark field were identified using X-ray diffraction (XRD) analysis...
- 《Applied Geochemistry》 被引量: 7发表: 2015年 Microelectrophoresis Applied to the Surface Chemistry of Clay Minerals Microelectrophoresis has been used for more than 60 years to study the behavior of aluminosilicate clays, yet there is still widespread disagreement concer... JB Harsh,S Xu - ...
Factors influencing the geochemistry of surface sediments in the supratidal Niger Deltadoi:10.1016/s0731-7247(84)80019-1The main factors are severe leaching, rapid rate of infiltration, clay mineralogy, permeability and marine, non-marine water influence. Factor analysis on the bulk chemical data ...
The pyroclastic fraction, which is characterized by relatively high content of Na2O, is possibly derived from the Luzon arc, and mainly deposited in the eastern deep-sea basin and the region to the north of the spreading ridge. Keywords: major elements / trace elements / geochemistry / South ...
This is a well-known phenom- enon in mineral-water interface geochemistry and colloid chemistry, and attempts to estimate effective surface area have largely been unsuccessful43,44. Siderite appeared to be an exception to the size-dependence trend (Fig. 2A). Our sample is a natural mineral,...
However, the efficacy of pedogenic weathering for silt production has not been tested rigorously–experimentally or empirically. Here, we test the hypothesis of abundant pedogenic (in situ) generation of silt in warm-climate soils by assessing the grain size and geochemistry of silt recovered in a...
However, recent investigations on clay mineralogy and elemental geochemistry emphasized a significant contribution derived from the northeast sources, i.e., Taiwan and/or the Yangtze River (Liu et al., 2003a; Shao et al., 2007; Wan et al., 2007). The input of detrital fine-grained ...
Accurate cost estimation is a critical component of mining project evaluation to determine whether the proposed project is clearly feasible, doubtfully fea... S Shafiee,E Topal - 《Transactions of the Institution of Mining & Metallurgy》 被引量: 0发表: 2012年 Geochemistry and mineralogy of surfa...
of the three MAs to all four clay minerals increases in the order MMA < DMA < TMA (Fig.1). As a result of MA uptake by the clays there is a corresponding decrease in the concentrations of free MAs in the medium, where montmorillonite addition results in a decrease of free ...