In an early attempt to incorporate infraspecific, varietal categories into conventional, morphodescriptive Linnaean taxonomy, Quenstedt in 1845 introduced an idiosyncratic trinominal nomenclature that has bedevilled ammonite ...

A practical and reliable method for the preparation of fine-grained forsterite and forsterite-enstatite polycrystals, in the system MgO-SiO2s described. The method employs state-of-the-art techniques from materials science, ...

Neoproterozoic–Cambrian rocks of the Zavkhan Basin (Govi-Altay, western Mongolia) comprise large-scale alternations of siliciclastic- and carbonate-dominated units (cf. ‘Grand Cycles’). Analysis of such depositional sequences ...

Coastal-marine sedimentation conditions in the Pechora River delta, Korovinskaya Bay, and intertidal zone of the Pechora Sea are characterized by diverse physicochemical processes that define the differentiation of mineral ...

To reconstruct patterns of fish migration using otolith chemistry, it is essential to validate the relationship between elements in otoliths and the surrounding water, and in particular, how processes such as competition ...

Sediment sorption capacity was measured in a coastal environment over a 2-year period using lysine as a model compound. Sorption capacity was found to vary over time but did not seem to follow a clear seasonal pattern or ...

A geochemical study of Cryogenian (late Neoproterozoic) limestones from western Mongolia is presented, including δ13C (carbonate and kerogen), δ18O, 87Sr/86Sr and rare earth element data. Carbon isotope compositions confirm ...

During their deceleration through the Earth's atmosphere, meteoritic materials, i.e., interplanetary dust particles, micrometeorites and meteorites, experience thermal shocks which may alter their pristine mineralogy, ...

A 300-m (1000-ft)-thick succession of shallow- and warm-water carbonates has been studied in well cores from the southernmost Barents Sea, offshore north Norway. These upper Paleozoic strata contain numerous zones of ...

A new approach to identifying the geochemical character of each element in the hydrosphere has recently been developed, in which the distinctive trends of the relationship between its concentration in water and the rate ...