Browsing by Author "Stark, Alexander"

Following a tentative evidence for the occurrence of low-temperature barium manganese(II) carbonates in brackish sediments of the Baltic Sea, a stoichiometric double carbonate, BaMn[CO3](2), was synthesized from aqueous solutions at ambient temperature for the first time. Here we report the results of a multi-method approach, including scanning electron microscopy (SEM-EDX) investigations, the chemical composition, and, in particular, the diagnostic powder X-ray diffraction pattern, as well as diagnostic parts of the FT infrared absorption and Raman spectra for future identification of this new carbonate in low-temperature environments, like brackish sediments. (c) 2012 Elsevier GmbH. All rights reserved.

We use data from the Lunar Orbiter Laser Altimeter (LOLA) to retrieve the h 2 tidal Love number of the Moon and find 0.040 < h 2 < 0.044. The applied algorithm solves simultaneously for h 2 and the shape of the Moon, parametrized using cubic splines on a global rectangular grid. The result can give valuable constraints for the Moon's interior and validates the method for application to other bodies.