We have developed a new methodology for the quantitative petrophysical evaluation of borehole array-induction measurements. The methodology is based on the time evolution of the spatial distributions of fluid saturation ...

The paper considers magnetic susceptibility (chi) and electrode potentials (EP) of rocks in the Chertovo Koryto deposit. Carbon-bearing substance is found in all the studied samples, but in some cases, this substance ...

A new genus of organic-walled microfossils of supposed fungal origin, Petsamomyces Belova gen. nov., is described from the black shales of the Pechenga complex of the Early Proterozoic (Kola Peninsula). The find testifies ...

Data on the PGE-bearing potential of the Syum-Keu massif (Polar Urals) were obtained for the first time. Two types of PGE mineralization, associated with chromite ores and sulfide occurrences, were established. The following ...

This chapter presents an overview of the distribution, current tectonic position and mode of origin of the remnants of oceanic basement rocks in the Altaids as likely analogues of similar rocks in many Precambrian, but ...

Based on ore-formation analysis, the distribution and deposition conditions of exogenic copper and precious metal (Ag, Pt, Pd, Au) ores within the sedimentary cover of the East European Platform are examined. Three main ...

The development history of striate miospores is considered. These miospores appeared first by the end of the Silurian-the beginning of the Devonian. During the existence period of striate miospores that lasted more than ...

X-ray phase analysis of clays is difficult because these materials generally consist of a mixture of different phases, i.e., mixed-layer minerals, individual clay minerals (non mixed-layer), and associated minerals, such ...

We present a new coherence functional to evaluate quantitatively the goodness of waveform fit between two time series as function of lag time. The proposed coherence measure is called phase cross-correlation (PCC) because ...