Volcanic rocks in Tengchong are the high K calc alkaline series of rocks with high 87 Sr/ 86 Sr, 206 Pb/ 204 Pb and 208 Pb/ 204 Pb and low 143 Nd/ 144 Nd, and their magmas originate from the recycle enriched mantle of subduction zone.
Volcanic rocks in Changbaishan are the ultrapotassic calc alkaline series of rocks with low Sr, high 87 Sr/ 86 Sr, Nd of 2 3—+2 9 and variable Pb isotopic composition, and their magmas originate from the recycle mantle of subduction zone.
Study and Application of Electrochemical Behavior of Calcium-ARS on a Mercury Film Electrode
The peak current was proportional to the concentration of calcium in the range of 5.0×10-8-4.2×10-5 mol L-1.
This method was applied successfully to determining traces of calcium in blood serum.
The interaction of water molecules with the calcium and phosphate sites at the HAP-water interface was also studied.
The regeneration of exhausted solutions of electroless nickel plating wood veneer was realized using soluble calcium salt to precipitate and remove phosphite and then using fluoride to remove residual calcium ions from the solution.
The 'active' compounds, which reduced growth of cancer cells to ca.
A sensitive complex absorptive wave of Ca-ARS was obtained by using differential pulse voltammetry when a mercury film glass carbon electrode was immersed in 0.1 mol L-1 KOH and 4.5×10-4 mol L-1 ARS solution.
Concentrations of N, Ca and Mg gradually increased and those of P and K gradually decreased in the fine roots of poplar during the period of decomposition.
A low concentration of AFM bonds can suppress the stepwise behavior considerably, in accordance with doping experiments on Ca3Co2O6.
Ultracytochemical localization of Ca2+ during the phloem ganglion development in Phyllostachys edulis
The rock series is mainly calc-alk series with high potassium.
The volcanoclastic component of tuffoids is closest to the Andean-type calc-alkaline andesites.
Its X-ray diffraction pattern was indexed in the monoclinic system: a = 7.4311(5), b = 12.6622(9), c = 4.1985(2) ?, β = 92.01(1)°, V = 394.8(2) ?3, Z = 2, ρcalc = 3.265 g cm-3; probable space group C2, Cm, or C2/m.
The crystals are rhombic, space group Pnma, a = 18.421(2), b = 19.569(3), c = 13.443(3) ?, Z = 4, ρ(calc) = 4.431 g/cm3, V = 4845.9(2) ?3.
The crystals of this compound are triclinic, space group P1, a 13.079(3), b 13.795(3), c 13.967(3) ?, α 90.08(3)°, β 103.76(3)°, ψ107.76(3)°, Z 2, and πcalc 4.900 g cm-3.