Hydrocarbon alteration in the bituminous salt of the Kłodawa Salt Dome (Central Poland)
PBN-AR
Instytucja
Wydział Geologii, Geofizyki i Ochrony Środowiska (Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie)
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
Marine and Petroleum Geology
ISSN
0264-8172
EISSN
1873-4073
Wydawca
Elsevier Science Ltd.
DOI
Rok publikacji
2016
Numer zeszytu
Strony od-do
325--340
Numer tomu
75
Link do pełnego tekstu
Liczba arkuszy
1.14
Autorzy
(liczba autorów: 2)
Pozostali autorzy
+ 1
Autorzy przekładu
(liczba autorów przekładu: 0)
Słowa kluczowe
EN
fluid inclusions
hydrocarbons
halite
Zechstein
Raman micro-spectroscopy
bituminous matter
Streszczenia
Język
EN
Treść
The so called bituminous salts occurring in the Klodawa dome, located in Central Poland, differ from the surrounding salts by their colour change from light to dark brown. This colour is associated with an extremely large amount of hydrocarbon, mainly located in the inclusions. The presence of numerous fluid inclusions has been documented in previous petrologic studies, distinguishing seven main types of fluid inclusion assemblages (FIA) in terms of size, shape as well as the ratio of filling material. However, four types of inclusions were selected in the current investigations according to their unusual optical behaviour. Raman micro-spectroscopy a modern, non-destructive method was used for investigating a single inclusion being a part of FIA. Presented in this paper Raman spectra revealed a unique pattern of bands characterizing the content of the inclusions. The hydrocarbons show a very complex character reflected in the appearance of a strong fluorescence background. A well-marked heterogeneity characterized the inclusions, by diversity in the intensity of the background and in the pattern of the bands characterizing the presence of certain components. One can distinguish the presence of carbonaceous matter showing the different degrees of order. The depth profile and the analysis of the various points of the inclusions indicate that the carbonaceous matter is not evenly distributed in the inclusions but forms a thin, disorganized film on their walls. This film was also found in sites where the inclusions are filled with brine. The certain characteristics associated with the presence of the incipient phase transformation of the organic matter, or slightly transformed organic matter and the lack of light hydrocarbons as well as a number of petrologic features of inclusions indicate that these salt rocks have been subdivided into thermal transformations, accompanied by the recrystallization of the halite and the escape of the more volatile compounds such as methane, ethane, etc. (C) 2016 Elsevier Ltd. All rights reserved.
Cechy publikacji
original article
peer-reviewed
Inne
System-identifier
idp:104325
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