Fluid evolution in the H2O - CH4 - CO2 - NaCl system during emerald mineralization at Gravelotte, Murchinson greenstone belt, Northeast Transvaal, South Africa. Geochim. Cosmochim. Acta 57, 89 - 103.Nwe, Y.Y. and Morteani, G. (1993) Fluid evolution in the H20-CH4-C02-NaCl system ...
Mssbauer spectroscopic study of natural eosphorite, [(Mn,Fe)AlPO4(OH)2H2O]doi:10.2138/AM-2015-4911Antoine Van AlboomValdirene Gonzaga de ResendeGeraldo Magela da CostaEddy De GraveMineralogical Society of America
Flatt RBrunisholz GBourgeois JWILEY‐VCH Verlag GmbHHelvetica Chimica ActaR. Flatt, G. Brunnisholz et J. Bourgeois, Helv. Chem. Acta, 39 (1956) 841.R. Flatts, G. Brunisholz and J. Bourgeois, Helv. Chem. Acta, 39 (1956) 841....
E. De GraveR. VochtenN. M. BlatonEeckhout, S.G., De Grave, E., Vochten, R., and Blaton, N.M. (1999) Mossbauer effect study of anapaite, Ca2Fe2+(PO4)2.4H2O, and of its oxidation products. Physics and Chemistry of Minerals, 26, 506-512....
This calculation confirms the sign of the Vzz component of the electric field gradient being negative as it is determined from the external magnetic field measurement and from the magnetic spectrum acquired at 4.2 K. Iron phosphates are widely spread minerals in the Earth's crust and are ...
The Mssbauer spectra from 295 K down to 40 K show the existence of two Fe3+ doublets with ΔEQ1 ≈ 0.62 mm/s and ΔEQ2 ≈ 0.91 mm/s (at 80 K), respectively, whereas for lower temperatures the spectra are composed of two sextets with Hhf1 ≈ 48.3 T and Hhf2 ≈ 48.8 T at ...