J 2017

Radiation damage in sulfides: Radioactive galena from burning heaps, after coal mining in the Lower Silesian basin (Czech Republic)

ČURDA, Michal, Viktor GOLIÁŠ, Mariana KLEMENTOVÁ, Ladislav STRNAD, Zdeněk MATĚJ et. al.

Basic information

Original name

Radiation damage in sulfides: Radioactive galena from burning heaps, after coal mining in the Lower Silesian basin (Czech Republic)

Authors

ČURDA, Michal (203 Czech Republic), Viktor GOLIÁŠ (203 Czech Republic), Mariana KLEMENTOVÁ (203 Czech Republic), Ladislav STRNAD (203 Czech Republic), Zdeněk MATĚJ (203 Czech Republic) and Radek ŠKODA (203 Czech Republic, guarantor, belonging to the institution)

Edition

American Mineralogist, CHANTILLY, Mineralogical Society of America, 2017, 0003-004X

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10504 Mineralogy

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 2.645

RIV identification code

RIV/00216224:14310/17:00100317

Organization unit

Faculty of Science

UT WoS

000410608000004

Keywords in English

Galena; radiation; lead-isotopes; radiation effects; metamict state

Tags

Změněno: 11/4/2018 10:59, Ing. Nicole Zrilić

Abstract

V originále

The isotopic composition of lead (Pb-207/Pb-206, Pb-208/Pb-206, and Pb-210) in a recently formed galena from burning heaps after coal mining in Radvanice, Markousovice, and Rybnicek, the Lower Silesian basin, Czech Republic, was studied in detail. 210Pb activity in galena varied from 135 +/- 9 to 714 +/- 22 Bq/g and calculated integral doses ranged from 2.21 x 10(11) to 6.11 x 10(11) alpha/g. The radioactivity of the galena causes micro-deformations in its crystal structure as indicated by the Williamson-Hall graphs, showing that the level of micro-strain depends on the length of time that galena samples were exposed to the radiation. However, the crystal structure of galena is affected very inhomogenously; according to TEM investigations there are domains of fully crystalline, polycrystalline, and fully metamict galena within one crystal. Inductively coupled plasma-mass spectrometry (ICP-MS) was used to determine the isotopic composition of the studied galena. The stable isotope ratios of Pb varied for Pb-207/Pb-206 from 0.8402 to 0.8435 and for Pb-208/Pb-206 from 2.0663 to 2.0836. The average ratios Pb-207/Pb-206 = 0.8312 and Pb-208/Pb-206 = 2.0421 were obtained for coal from the same localities. These isotope ratios show that there is no isotopic fractionation taking place during the coal burning and subsequent galena crystallization from hot gases.

Links

MUNI/A/1316/2015, interní kód MU
Name: Geologické, geodynamické a environmentální procesy východního okraje Českého masívu (Acronym: Geodyn)
Investor: Masaryk University, Category A