Despite their small individual size, marine prokaryotic and eukaryotic microbes can form
large 3D structures and complex habitats. These habitats contribute to seafloor …

The stratiform Mn-carbonate ore from the Gaoyan deposit occurs within terrigenous-
sedimentary rocks of the upper part of the Ediacaran Doushantuo Formation and is …

Mars exploration motivates the search for extraterrestrial life, the development of space
technologies, and the design of human missions and habitations. Here, we seek new …

This study investigates the process of formation of ooidal ironstones in the Upper
Cretaceous-Paleogene succession in western Siberia. The formation of such carbonate …

This study investigates the authigenically formed Late Cretaceous and Paleogene marine
ironstones in Western Siberia (Russia) based on petrographic and spectroscopic …

Ironstone is a marine biochemical sedimentary rock with syndepositional Fe enrichment that
has long been viewed as a geologic curio. It is widespread in the Silurian Clinton Group and …

Total element concentrations by themselves are not always good predictors of toxicity and
are therefore not suitable for eco-and/or human toxicological risk determination. In addition …

The aim of this research was to study the rare earth (REE) minerals in ooidal ironstone
deposits of the West Siberian basin and the Turgai depression. Authigenic minerals …

Chlorite is recognized worldwide as a key mineral that inhibits the development of quartz
cement in deeply buried sandstone reservoirs. Iron-rich chlorite is mainly formed by the …

This paper investigates the conditions of formation of the Middle Jurassic iron-bearing strata,
in the Labino-Malkin zone in the North-West Caucasus. The mineral composition and …