As far as trace elements are concerned, all natural minerals are solid solutions. Substitutional impurities (and interstitial impurities and vacancies) are point defects that capture electrons or holes during natural or artificial irradiation. A great number of centers were found in minerals by using paramagnetic electronic resonance (PER). The models of these centers are definitely elucidated. The centers are widely present in rock forming minerals : feldspars, quartz, zircon, phenacite, topaz, euclase, kyanite, beryl, sodalite, lazurite, danburite, datolite, tourmaline, apatite, amblygonite, anhydrite, barytite, celestite, calcite, aragonite, etc. Periodical systems of these centers in minerals and inorganic coumpounds are proposed. A r...
This study presents the works driven on three groups of clay minerals (kaolins, illite, sudoite (di-...
Quartz samples of different origin from 10 localities in the Southern Ural region, Russia have been ...
Mineral replacement is a common phenomenon in a wide range of geological environments. Metasomatism,...
As far as trace elements are concerned, all natural minerals are solid solutions. Substitutional imp...
In three sedimentary rocks, Zn, Mn, Li, Rb and Ti are located by mean of a kinetic method : dissolut...
The E. P. R. enables the identification of three types of paramagnetic centers in the mineral : the ...
This study has been extended and now covers the main types of micaceous minerals. In connection wit...
Natural quartz crystals coming from Madagascar, Angola, Brazil, and Spain were studied by EPR after ...
The aim of this PhD thesis is to study and understand, by proposing reaction mechanisms, the behavio...
Magnetites, chromites and ilmenites are common minerals in most detrital rocks. It is easy to concen...
The angular variation of ESR lines is used to localize Fe3+ in trioctahedral and dioctahedral smecti...
Short-lived radionuclides generate electronic defects, trapped electrons and positive holes, often a...
A natural, altered zircon crystal from an alkaline pegmatite from the Zomba-Malosa Complex of the Ch...
Hundred whole-rock chemical analyses (major and trace elements) and mineral microprobe analyses desc...
Quartz samples of different origin from 10 localities in the Southern Ural region, Russia have been ...
This study presents the works driven on three groups of clay minerals (kaolins, illite, sudoite (di-...
Quartz samples of different origin from 10 localities in the Southern Ural region, Russia have been ...
Mineral replacement is a common phenomenon in a wide range of geological environments. Metasomatism,...
As far as trace elements are concerned, all natural minerals are solid solutions. Substitutional imp...
In three sedimentary rocks, Zn, Mn, Li, Rb and Ti are located by mean of a kinetic method : dissolut...
The E. P. R. enables the identification of three types of paramagnetic centers in the mineral : the ...
This study has been extended and now covers the main types of micaceous minerals. In connection wit...
Natural quartz crystals coming from Madagascar, Angola, Brazil, and Spain were studied by EPR after ...
The aim of this PhD thesis is to study and understand, by proposing reaction mechanisms, the behavio...
Magnetites, chromites and ilmenites are common minerals in most detrital rocks. It is easy to concen...
The angular variation of ESR lines is used to localize Fe3+ in trioctahedral and dioctahedral smecti...
Short-lived radionuclides generate electronic defects, trapped electrons and positive holes, often a...
A natural, altered zircon crystal from an alkaline pegmatite from the Zomba-Malosa Complex of the Ch...
Hundred whole-rock chemical analyses (major and trace elements) and mineral microprobe analyses desc...
Quartz samples of different origin from 10 localities in the Southern Ural region, Russia have been ...
This study presents the works driven on three groups of clay minerals (kaolins, illite, sudoite (di-...
Quartz samples of different origin from 10 localities in the Southern Ural region, Russia have been ...
Mineral replacement is a common phenomenon in a wide range of geological environments. Metasomatism,...