The atmospheric depositions of heavy metals and other elements on the territory Crimean Mountains in 2015 was assessed using moss biomonitoring technique. neutron activation analysis performed at installation REGATA IBR-2 reactor used for determination mass fractions 34 (Na, Mg, Al, Cl, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Zn, As, Se, Br, Rb, Sr, Sb, I, Cs, Ba, La, Ce, Nd, Sm, Eu, Tb, Yb, Ta, ...

Abstract. Conventional Re–Os isochrons are based on mass spectrometric estimates of 187Re/188Os and 187Os/188Os, which often exhibit strong error correlations that may obscure potentially important geological complexity. Using an approach is widely accepted in 40Ar/39Ar U–Pb geochronology, we here show these greatly reduced by applying a simple change variables, using 187Os as common denominato...

Isotopic data were collected on lower crustal xenoliths to constrain the Mexican lower crust as source material for the mid-Tertiary Sierra Madre Occidental, which is one of the largest silicic volcanic piles known. The xenoliths are predominantly pelitic gneisses and marie orthogneisses that were brought to the surface on the eastern edge of the Sierra Madre Occidental by recent alkalic basalt...

The Yamaat Uul mafic complex with Cu-Ni mineralization is located in the Khangai Mountains of Western Mongolia. We have received new unique data for rocks complex: U-Pb dating (SHRIMP II), mineralogy (WDS) and geochemistry (XRF, ICP-MS), Sm-Nd Rb-Sr isotope sulphur isotopes. consists two intrusions: Intrusion 1 represented by plagioclase cumulates olivine–pyroxene cumulates; 2 monzogabbro. Intr...

Introduction: Defining the mineralogy and composition of martian mantle source regions has proved to be a difficult task because: (1) the martian sample set does not include samples of the mantle, and (2) many of the samples are either cumulates or are highly fractionated and therefore not in equilibrium with the mantle. Despite these complexities, isotopic evidence suggests that Mars had a mag...