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Tytuł:
Contribution on fluid inclusion abundance to activation of quartz flotation
Autorzy:
Yuan, Y.
Zhang, L.
Guan, J.
Zhang, C.
Wu, J.
Chen, Z.
Powiązania:
https://bibliotekanauki.pl/articles/110067.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
recovery
flotation
mineralogy
fluid Inclusions
fluid inclusion abundance
Opis:
In this study, comparative experiments were conducted on the recovery of quartz using flotation with different fluid inclusion abundances. A large number of fluid inclusions with various sizes have been found in natural quartz. Micrographs, inductively coupled plasma, electron probe microanalysis, homogenization temperature, Raman spectra, zeta potentials, X-ray photoelectron spectroscopy, scanning electron microscope, and energy dispersive spectrometer were used to characterize the fluid inclusions and quartz, as well as the adsorption tests and single mineral flotation experiments to investigate its floatability. The results demonstrated that it was more likely for quartz with higher fluid inclusion abundance to connect with Fe3+ sufficiently to achieve a high level of flotation recovery, due to the powerful collecting ability by sodium dodecyl sulphonate to Fe3+. Furthermore, the mechanism indicated that the adsorption between quartz and Fe3+ was a process of chemisorption.
Źródło:
Physicochemical Problems of Mineral Processing; 2018, 54, 3; 981-991
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Migration of palaeofluids in the contact zone between the Dukla and Silesian units, Western Carpathians - evidence from fluid inclusions and stable isotopes in quartz and calcite
Autorzy:
Jarmołowicz-Szulc, K.
Dudok, I.
Powiązania:
https://bibliotekanauki.pl/articles/2058916.pdf
Data publikacji:
2005
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Carpathians
quartz
Marmarosh diamonds
fluid inclusions
hydrocarbons
Opis:
This study reconstructs the type and migration history of fluids within the Cretaceous-Paleogene rocks of the Silesian and Dukla units in the border area of the Polish and Ukrainian Carpathians. Quartz (the “Marmarosh diamonds”), calcite and organic matter fill fractures in the sedimentary rocks of the Tertiary accretionary prism of the Carpathian thrust units. The calcite and quartz contain numerous solid, liquid and gaseous inclusions. Generally two types of fluids are distinguished — aqueous and hydrocarbon. Homogenisation temperatures of hydrocarbons in quartz range from -128 to + 85°C. Hydrocarbon fluids contain light (methane) and heavier (oil) compounds. Aqueous inclusions generally display homogenisation temperatures between 110 and 230°C. The δI3CPBD values for calcite range from -3.5to +2.9%o, while the δI8Osmow range from 18.9 to 27.7%o. The 8I8OSMOwvalues for quartz range from 15.7 and 26.7%o. Fluidinclu- sions indicate that maximum pressures and temperatures occur at the early development of the vein mineralization. They vary from 2.4 to 2.7kbarin the Krosno (Silesian) Unit and from1.7to 1.9kbarinthe Dukla Unit at 190-230°C. The crystallisation of the “Marmarosh diamonds” in the NW part of the study area occurred at lower P-T conditions of 0.9 kbar and 110-175°C. Generally, the migrating fluids are represented by a mixture ofthe low salinity aqueous and the hydrocarbon-rich fluids.
Źródło:
Geological Quarterly; 2005, 49, 3; 291-304
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Origin of the Badenian salts from East Slovakian basin indicated by the analysis of fluid inclusions
Autorzy:
Galamay, A. R.
Bukowski, K.
Poberezhskyy, A. V.
Karoli, S.
Kovalevych, V. M.
Powiązania:
https://bibliotekanauki.pl/articles/191589.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Miocene
evaporites
halite
fluid inclusions
Carpathian region
Opis:
Chemical composition of the brines of primary fluid inclusions in sedimentary halite (from the boreholes: P-2, P-3, P-6, P-7 and P-8) of the Badenian evaporite of the Zbudza Fm. from East Slovakian basin indicates that the basinal brines belong to the Na-K-Mg-Cl-SO4 type. The ratios of K+, Mg2+, and SO42- ions are practically the same as they were in the Badenian seawater. Taking into account the information on the chemical evolution of seawater in the Phanerozoic (Kovalevich et al., 1998) and the calculations of this evolution for the Cenozoic (Zimmermann, 2000) it is suggested that the Badenian seawater was characterized by the reduced contents of Mg (by approximately 20%) and SO42- (by approximately 40%) in comparison with the recent seawater. The postsedimentary recrystallization of salts occurred under the effect of buried brines, which inherited their composition from the primary basinal brines. The intensive recrystallization of salts occurred during the tectonic movements.
Źródło:
Annales Societatis Geologorum Poloniae; 2004, 74, No 3; 267-276
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania mikrotermometryczne i ramanowskie inkluzji w minerałach w rejonie Rabego (Karpaty) : praktyka eksperymentalna
Microthermometric and Raman spectra studies in minerals in the Rabe vicinity (Carpathians) : an experimental practice
Autorzy:
Jarmołowicz-Szulc, Katarzyna
Toboła, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/2076187.pdf
Data publikacji:
2021
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
płynne inkluzje
stałe inkluzje
Karpaty
fluid inclusions
solid inclusions
Carpathians
Opis:
Fluid and solid inclusions were analyzed in minerals of Carpathian rock samples from the Rabe vicinity by means of microthermometry and Raman spectrometry. Fluid inclusions are present in calcite and quartz that often co-occurwith organic matter in different spatial relationships. In case of the studied Ra 5 sample they fill a cavern in the mélange zone in the Carpathian flysch. The temperatures obtained from the combined research (FI 178.9186°C; Raman 178-205°C) give an insight into the geological history of that fragment of the Carpathians.
Źródło:
Przegląd Geologiczny; 2021, 69, 6; 361--364
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fluid inclusions in halite from marine salt deposits: are they real micro-droplets of ancient seawater?
Autorzy:
Kovalevych, V.
Vovnyuk, S.
Powiązania:
https://bibliotekanauki.pl/articles/2059036.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
marine salt deposits
halite
fluid inclusions
seawater chemistry
Opis:
Evaluation of data sets on inclusion brine compositions in halite from the Phanerozoic marine evaporite deposits used for the reconstruction of ancient seawater chemistry shows that brine analysis of primary inclusions from primary marine halite (in the case of proper genetic type determination) undoubtedly indicate two megacycles in secular variation of seawater chemistry during the Phanerozoic. It is also shown that inside primary halite, inclusions formed at later stages of deposit formation locally occur. Erroneous attribution of such inclusions to primary ones is the main reason for deviations observed in most data sets. It is also obvious that fluid inclusions in clear (recrystallized) halite are unsuitable for the reconstruction of ancient seawater chemistry. Brines from inclusions properly determined as primary in primary bedded halite are micro-droplets of concentrated ancient seawater.
Źródło:
Geological Quarterly; 2010, 54, 4; 401-410
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evidence of high-temperature rock salt transformations in areas of occurrence of borate minerals (Zechstein, Kłodawa salt dome, Poland)
Autorzy:
Toboła, T. T.
Wachowiak, J.
Powiązania:
https://bibliotekanauki.pl/articles/2059366.pdf
Data publikacji:
2018
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Zechstein
salt deposit
hydrothermal conditions
borates
fluid inclusions
Opis:
Occurrences of borate minerals in the Zechstein salt-bearing deposits of the Kłodawa salt dome (central Poland), and the manner of their development, suggest that the minerals were formed at high temperatures, that considerably exceed the temperature estimated from the thermal gradient (~180°C). Research on rock salt and potassium-magnesium salts containing congolite and boracite, respectively, are consistent with high-temperature processes of transformations affecting the salt rocks in certain sections of the salt dome. The chemical composition of, and daughter minerals occurring in, primary fluid inclusions in halite, originating from the congolite zone, indicated a very high proportion of potassium and magnesium in the brines from which the halite crystallised. The thermal transformations observed in inclusions indicate a halite crystallisation temperature exceeding 420°C. Anhydrite crystals, co-occurring with borate minerals, represent unique features as to the distribution and composition of solid and fluid inclusions. These features indicate crystallisation or recrystallisation in conditions that differed considerably from those typical of the salt dome, with the involvement of solutions of changing chemical compositions. The crystals contain multiple solid inclusions of transparent and non-transparent minerals, among which we have focused on carnallite. The relationships of carnallite with liquid and gaseous phases indicate, as in the congolite zone, migration of very highly concentrated brines with respect to potassium and magnesium, or even transport of carnallite in the form of melt (liquid). Measurements of fluid inclusion homogenization temperatures, within the range from 197.8 to 473.8°C, supported a high-temperature origin for these minerals in hydrothermal conditions.
Źródło:
Geological Quarterly; 2018, 62, 1; 134--145
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ordovician seawater composition : evidence from fluid inclusions in halite
Autorzy:
Meng, F.
Zhang, Y.
Galamay, A. R.
Bukowski, K.
Ni, P.
Xing, E.
Ji, L.
Powiązania:
https://bibliotekanauki.pl/articles/2059770.pdf
Data publikacji:
2018
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Ordovician
fluid inclusions
halite
seawater composition
calcite sea
Opis:
Fluid inclusions in halite can directly record the major composition of evaporated seawater; however, Ordovician halite is very rare. The Ordovician is a key time during the evolution history because profound changes occurred in the planet’s ecosystems. Marine life was characterized by a major diversification, the Great Ordovician Biodiversification Event and the Late Ordovician Mass Extinction, the first of the “big five” mass extinctions. However, so far there is no data on the Ordovician seawater. Data from the Ordovician-Silurian boundary were available only. In this study, we report the major compositions from Middle Ordovician halite in China to give the exact composition of Ordovician seawater. The basic ion composition (K+, Mg2+, Ca2+, and SO42-) of inclusion brines was established with the use of ultramicrochemical analysis. The data on the chemical composition of the brines in the primary inclusions indicated that the brines were of Na-K-Mg-Ca-Cl (Ca-rich) type, and cover a huge gap in the evolution of seawater chemistry. The chemical composition of the primary inclusion brine in halite confirmed the earlier results for the Cambrian and Silurian halite originating from other salt basins and the previous speculation of “calcite sea” during the Ordovician, indicating a higher potassium content in the Lower Paleozoic seawater than in the seawater of other periods of the Phanerozoic.
Źródło:
Geological Quarterly; 2018, 62, 2; 344--352
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydrocarbon and aqueous inclusions in minerals: a review of analyses and interpretations for Paleozoic rocks in Poland
Autorzy:
Jarmołowicz-Szulc, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/2058676.pdf
Data publikacji:
2021
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
fluid inclusions
hydrocarbons
Paleozoic
Baltic Sea
Polish Lowlands
Opis:
Two decades of microthermometric studies of fluid inclusions within cements of Paleozoic sedimentary rocks in Poland are reviewed. The inclusions contain palaeofluids of variable composition: aqueous, brine, and hydrocarbon. They may be primary and/or secondary in origin and have one, two or more phases. They display visual fluorescence in blue, sometimes yellow to red (oil) or dull blue (one phase, methane) colours, or do not fluoresce at all. Based on the fluorescence characteristics in ultraviolet light, the inclusions' hydrocarbons infill character may be estimated. The homogenization temperatures, which correspond to the minimum estimate of the trapping temperatures in the minerals, show variability in respect to the geological history of the area studied. They point to different geological stages in relation to the basin's burial evolution. Microthermometric analyses enable wider interpretation due to the combination of studies of both hydrocarbon and aqueous inclusions. The presence of oil and/or gas in inclusions is proof of the occurrence and/or migration of oil and gas in the rocks of a region.
Źródło:
Geological Quarterly; 2021, 65, 4; 158--176
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The relationship of brine chemistry of the Pennsylvanian Paradox Evaporite Basin (southwestern USA) to secular variation in seawater chemistry
Autorzy:
Petrychenko, O. Y.
Williams-Stroud, S.
Peryt, T. M.
Powiązania:
https://bibliotekanauki.pl/articles/2058982.pdf
Data publikacji:
2012
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Pennsylvanian
Paradox Basin
evaporites
fluid inclusions
seawater chemistry
Opis:
To establish the brine chemistry associated with the evaporites in the Pennsylvanian Paradox Basin of southeastern Utah and southwestern Colorado (USA), the composition of primary fluid inclusions was determined for sedimentary halite from two drill cores, one near the central part of the basin (Shafer Dome No. 1) and one from a more marginal location of the basin (Gibson Dome No. 1). Chemical analysis of halite fluid inclusions was done on six samples from three different evaporite cycles of the Paradox Formation; cycle 10 in the Shafer Dome core and cycles 6 and 18 from the Gibson Dome core. The inclusions that range in size from 2 to 80 microns across, were analyzed using the Petrychenko method. Large inclusions (40 to 80 microns across) that were used for the chemical analyses contain one fluid phase with a carnallite or sylvite daughter crystal. Also reported in this study are fluid inclusion homogenization temperatures for sylvite or carnallite from primary halite crystals in the Gibson Dome core and in Shafer Dome. The relationship between K+ and Mg2+ in chloride rich inclusions corresponds to their proportion in MgSO4-depleted marine waters concentrated to the stage of carnallite deposition. A correlative relationship was observed between K+2+4-rich to MgSO4-poor compositions that have been proposed by other workers. A transition from MgSO4-rich to MgSO4-poor seawater composition may have occurred between Pennsylvanian and Permian times. This paper presents a possible alternate explanation to those already proposed in the literature, that the Paradox Formation mineralogy resulted from an intermediate seawater composition that records the global transition from MgSO4-rich to MgSO4-poor seawater.
Źródło:
Geological Quarterly; 2012, 56, 1; 25--40
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Temperature and isotopic relations in carbonate minerals in the Middle Jurassic sideritic rocks of central and southern Poland
Autorzy:
Jarmołowicz-Szulc, K.
Kozłowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/2060537.pdf
Data publikacji:
2016
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
fluid inclusions
isotopes
carbonate minerals
sideritic rocks
Middle Jurassic
Opis:
The present study assesses the physico-chemical character of the fluids responsible for the genesis of carbonate minerals in the Middle Jurassic sideritic rocks at the northeastern margin of the Holy Cross Mts. and in the Częstochowa region. These rocks occur at present at depths between 30 and 600 m. Fluid inclusion and isotopic analyses have been performed in the carbonate minerals from sideritic sandstones, clayey siderites and sideritic coquinas. Siderite is the main carbonate mineral of the sideritic rocks. Calcite and ankerite are also present. The siderite is represented by two varieties, Mg-rich siderite (sideroplesite, less commonly – pistomesite) and siderite. Two generations of siderite have been distinguished – an early and a late one. The early siderite was formed at temperatures of about 20°C in the zone of microbiological methanogenesis from marine waters with some influence of meteoric waters (δ18O from –7.84 to –1.92‰ VSMOW). The late siderite crystallized at temperatures of about 62–110°C from pore waters enriched in 18O (δ18O >0‰ VSMOW) as compared with the isotopic composition of the waters responsible for the early siderite generation. The conducted fluid inclusion analyses point to formation of the cements from complex fluids of brine and carbon dioxide character, with densities slightly exceeding 1 g/cm3 and salinities varying from 10.5 to 16.9 wt.% NaCl eq. and from 6.4 to 14.0 wt.% NaCl eq. in the Holy Cross Mts. and in the Częstochowa region, respectively. The homogenization temperatures lie in the intervals of 62–110°C and 60–97°C, respectively and represent elevated values compared with data from the Polish Lowlands. Apart from burial, other heat sources must have been important for the lithogenesis of the Middle Jurassic deposits.
Źródło:
Geological Quarterly; 2016, 60, 4; 881-892
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New achievements in the mineral studies by use of the Raman microspectroscopy
Nowe osiągnięcia w badaniach minerałów przy użyciu spektrometru Ramana
Autorzy:
Jarmołowicz-Szulc, Katarzyna
Wołkowicz, Krystyna
Powiązania:
https://bibliotekanauki.pl/articles/2061591.pdf
Data publikacji:
2019
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Raman microspectrometry
fluid inclusions
quartz
mikrospektrometria Ramana
inkluzje fluidalne
kwarc
Opis:
By the means of the technique of the Raman microspectrometry, the complex history of the Earth can be better understood. That is why the Raman spectra determinations are the object of interest in the present paper. The examples of such experiments are presented based on the analyses performed in last years in different scientific centers (Potsdam, Banská Bystrica, Budapest). The identification of inclusion content is shown and the conclusions are drawn for fluid inclusions in some quartz samples from two different localities in Poland – in the Carpathians and in the Fore-Sudetic Block. The implications of the Raman analyses are discussed. It results from the Raman analyses performed that not fluorescing, gas-filled bubbles of huge fluid inclusions from the Jabłonki and Rabe vicinity (the tectonic mélange zone in the Carpathians) have the complex composition of CH4, CO2 and N2 in different mutual proportions dependent on the sample and locality. In another place, despite the fluorescing background, only methane has been identified by Raman spectra. Similar gas compo¬sition was determined in the inclusions in the vein quartz in the Wądroże Wielkie area (the Fore-Sudetic Block).
Złożona historia Ziemi może być lepiej zrozumiana przy pomocy microspektrometrii Ramana. Toteż oznaczenia widma ramanowskiego są przedmiotem zainteresowania bieżącej pracy. Zaprezentowano przykłady oznaczeń ramanowskich, wykonanych w ostatnich latach w różnych ośrodkach naukowych (Poczdam, Bańska Bystrzyca, Budapeszt). Przedstawiono identyfikację składu inkluzji i wyciągnięte wnioski dla inkluzji fluidalnych z próbek kwarcu z dwóch różnych lokalizacji w Polsce – Karpat i bloku przedsudeckiego. Przedyskutowano implikacje analiz widma Ramana. Jak wynika z przeprowadzonych badań, niewykazujące fluorescencji, wypełnione gazem pęcherze w olbrzymich inkluzjach w rejonie Jabłonek i Rabego (strefa melanżu tektonicznego w Karpatach) mają skład złożony z CH4, CO2 i N2 w różnych wzajemnych proporcjach w zależności od próbki i lokalizacji. W innym miejscu, niezależnie od zakłócającego obraz widma fluoryzującego tła, w spektrach Ramana można wyraźnie zidentyfikować metan. Zbliżony skład gazu określono w inkluzjach w kwarcu żyłowym w rejonie Wądroża Wielkiego (blok przedusedcki).
Źródło:
Biuletyn Państwowego Instytutu Geologicznego; 2019, 474; 23--29
0867-6143
Pojawia się w:
Biuletyn Państwowego Instytutu Geologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ważne i użyteczne fakty dotyczące inkluzji fluidalnych w minerałach w kontekście rozpoznawania systemów naftowych
Important and useful facts on fluid inclusions in minerals in the context recognition of hydrocarbon systems
Autorzy:
Jarmołowicz-Szulc, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/20243860.pdf
Data publikacji:
2023
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
minerały
inkluzja fluidalna
badania analityczne
mikrotermometria
minerals
fluid inclusions
analytical studies
microthermometry
Opis:
Samples of minerals, solid bitumen and rocks from different localities and different basins have been an object of mineralogical, petrographic and geochemical analyses. Their microfissures (microfractures) are often filled with fluids forming “fluid inclusions” (FI). Such inclusions are small portions of palaeofluids that existed in the basin during the mineral formation, which may be a significant record from the geological past. Analytical procedures comprised several stages: preparation of thin and thick sections, microscopic evaluation of the material (organic matter, minerals, inclusions), FI microthermometric determinations, geochemical analyses, and auxiliary studies. General microscopic observations were conducted using a polarization microscope, cold cathode, and the special heating-freezing stage. Fluid inclusions in minerals were studied aiming at the characterization of fluids that fill these micro-volumes in crystals. The undertaken analytical steps have led to determination of the fluids trapped in inclusions as brine and/or hydrocarbons (based on fluorescence abilities). Furthermore, they have resulted in the measurement of the homogenization temperatures of inclusions (values positive for, e.g., oil, negative for methane, pure or with admixtures), and determinations of the eutectic and ice-melting temperatures of the aqueous inclusions. Thermometric studies in the heating mode generally lead to determination of temperatures of mineral crystallization since it has been assumed that the homogenization temperature of the primary aqueous inclusions represents a minimum temperature of fluid trapping during mineral precipitation. Complementary analyses, as the Raman spectrum analysis and studies on the organic matter, lead to the interpretation of the results richer, clearer and meaningful for the hydrocarbon systems context, what has been proved on some examples.
Źródło:
Przegląd Geologiczny; 2023, 71, 4; 184-187
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geochemistry of skarn and porphyry deposits in relation to epithermal mineralization in the Arasbaran metallogenic zone, NE Tabriz, Iran
Autorzy:
Alavi, Ghafour
Radmard, Kaikhosrov
Zamanian, Hassan
Hosseinzadeh, Mohammad Reza
Khalaji, Ahmad Ahmadi
Powiązania:
https://bibliotekanauki.pl/articles/2058563.pdf
Data publikacji:
2020
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Arasbaran metallogenic zone
porphyry deposits
skarn deposits
epithermal deposits
fluid inclusions
Iran
Opis:
The Arasbaran metallogenic zone in northern Iran is part of the Alborz-Azerbaijan magmatic zone, which developed along the southern margin of Eurasia during the Early Mesozoic-Late Cenozoic. This region hosts precious and base metal mineralization, including porphyry, skarn, and epithermal copper, molybdenum, and gold deposits. Rare earth element variations across all the deposits are similar, indicating a similar source for these elements. The north-west trending belt comprising the Nabijan to the Sonajil deposits consistently shows chiefly alkaline conditions of formation. Fluid inclusion studies indicate that both high and low temperature hydrothermal fluids participated in the formation of all of the deposits. The mineralization age decreases from north to south and east to west and, although metal zonation is complex, the Cu-Au association post-dated the Cu-Mo mineralization reflecting that the ore fluid evolved in terms of both cooling and chemical changes due to fluid-fluid and fluid-rock interactions. In this region most deposits record a concentric zonation, with the centres preserving porphyry and skarn deposits and deposits becoming progressively epithermal toward the outer parts of the mineralizing system. According to this, the mineralization age decreases from the porphyry and skarn deposits to the epithermal deposits. The homogenization temperature and salinity both decrease from the centre to the outer zone. The pattern of homogenization temperature zonation, which is concordant with salinity zonation, suggests that fluids migrated up-dip and towards the margins of the zonation system.
Źródło:
Geological Quarterly; 2020, 64, 1; 141--164
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wstępna ocena właściwości reologicznych wybranych rodzajów soli kamiennej
Preliminary evaluation of the rheological properties of selected types of salts
Autorzy:
Serbin, K.
Toboła, T.
Ślizowski, J.
Lankof, L.
Polański, K.
Powiązania:
https://bibliotekanauki.pl/articles/2192112.pdf
Data publikacji:
2016
Wydawca:
Polskie Stowarzyszenie Górnictwa Solnego
Tematy:
szybkość pełzania
sole kamienne
inkluzje fluidalne
creep rate
rock salt
fluid inclusions
Opis:
Przedmiotem badań była analiza szybkości pełzania różnych typów soli kamiennych pobranych ze złóż Kosakowo, Sieroszowice oraz Mogilno. Rozpatrzono wpływ takich parametrów petrograficznych jak wielkość kryształów halitu, obecność inkluzji solankowo-gazowych, sposób rozmieszczenia anhydrytu i innych domieszek. Przeprowadzone badania nie wykazały wzrostu szybkości pełzania wraz ze wzrostem rozmiarów kryształów halitu co często sugerowane jest w literaturze. Nie zaobserwowano również istotnego wpływu inkluzji pierwotnych. Ze względu na liczną obecność anhydrytu i polihalitu w badanych próbkach w których występowały inkluzje pierwotne, kwestia ich wpływu na szybkość pełzania wymaga dalszych szczegółowych badań. Wpływ na wzrost szybkości pełzania niewątpliwie związany jest z obecnością inkluzji rozmieszczonych na granicach kryształów halitu.
The aim of presented study was to analyse the creep rate of different types of rock salt taken from the Kosakowo, Sieroszowice and Mogilno salt deposits. Petrological parameters such as: size of halite crystals, the presence of liquid-gas inclusions, arrangement of anhydrite and others minerals impurities were taken into account. Research did not reveal correlation between the creep rate and the size of halite crystals, what is frequently suggested in a literature. Moreover, the presence of primary fluid inclusions did not influence on the creep rate. In view of numerous anhydrite and polihalite ingrowth in the samples where primary fluid inclusions occur, this issue needs further investigations. However, the increase of the creep rate is connected with the fluid inclusions distributed on the boundaries of halite crystals.
Źródło:
Przegląd Solny; 2016, 12; 127--135
2300-9349
Pojawia się w:
Przegląd Solny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A fluorescence contribution to the recognition of fluids trapped in minerals in the Carpathian outcrops
Znaczenie fluorescencji w rozpoznaniu fluidów zamkniętych w minerałach skał w odkrywkach karpackich
Autorzy:
Jarmołowicz-Szulc, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/2061590.pdf
Data publikacji:
2019
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
fluorescence
organic matter
fluid inclusions
quartz
Carpathians
fluorescencja
bituminy
inkluzje fluidalne
kwarc
Karpaty
Opis:
Based on the assumption that fluorescence studies are an important tool in search and characterization of hydrocarbons, samples of rocks, minerals and the organic matter were collected in the Western Carpathian area spreading from the Mszana Górna region in the west to the Bieszczady Mts. in the east, and continuously, towards SE outside the Polish frontier, in Ukraine and Slovakia. Analytical procedures comprised preparation, microscopic observation of the material (organic matter and minerals) from the point of view of inclusions and fluorescence followed by detailed luminescence studies. Those steps have been followed by the microthermometric determinations. The application of the fluid inclusion methods, which are one of the newest analytical tools in the last two decades have led to the characteristics of fluids trapped in the inclusions in the area. The fluorescence studies showed some diversity of hydrocarbons both in compositions and in distribution. The analyses were performed in double-sided polished thin sections prepared based on cold techniques. Fluorescence of inclusions in two minerals, quartz and calcite, was checked in those specific thin sections either in glued wafers, or loose (single) crystals. The fluid inclusion studies were accompanied later on by solid organic matter inclusion studies. Those point to the presence of the following minerals: quartz, dolomite, calcite, clay minerals, gypsum with anhydrite admixture, traces of pyrite and siderite, feldspars. General distribution of fluorescing and not fluorescing inclusions suggests the presence of light hydrocarbons (methane) in the west and south of the area, being enriched in higher hydrocarbons (oil) towards the east.
Badania fluorescencji podjęto w skałach, minerałach i bituminach w Karpatach Zachodnich w rejonie rozciągającym się od Mszany Górnej po Bieszczady i dalej – poza granicami Polski – na Ukrainie i Słowacji. Procedury analityczne obejmowały preparatykę, ocenę mikroskopową materiału (organika i minerały) z punktu widzenia występowania wrostków i fluorescencji inkluzji oraz zasadnicze badania świecenia. Po tych analizach wykonano oznaczenia mikrotermometryczne. Wszystkie badania przeprowadzono stosując nowe metody i nowoczesny sprzęt analityczny. W wyniku użycia metod badań inkluzji fluidalnych, będących jednym z najnowszych narzędzi analitycznych w ostatnim dwudziestoleciu, uzyskano charakterystykę fluidów zamkniętych w postaci inkluzji w minerałach. Badania fluorescencji wykazały zróżnicowanie wypełnień węglowodorowych. Analizy przeprowadzano w obustronnie polerowanych płytkach, przygotowanych na zimno. Badano dwa minerały – kwarc i kalcyt – zarówno w preparatach, jak i luźnych kryształach naturalnych (kwarc – diamenty marmaroskie). Badaniom inkluzji fluidalnych towarzyszyły analizy wrostków organicznych (np. badania czarnych agregatów występujących w odkrywkach w formie soczewek). W ich wyniku stwierdzono obecność następujących minerałów: kwarc, dolomit, kalcyt, minerały ilaste, mieszanina gipsu z anhydrytem, ślady pirytu i syderytu oraz skalenie. Ogólny rozkład fluorescencji wrostków w minerałach i inkluzji niewykazujących wzbudzenia sugeruje obecność lekkich węglowodorów (metan) w części zachodniej obszaru i na południu oraz wyraźne wzbogacanie w wyższe węglowodory (ropa naftowa) w kierunku wschodnim.
Źródło:
Biuletyn Państwowego Instytutu Geologicznego; 2019, 474; 7--22
0867-6143
Pojawia się w:
Biuletyn Państwowego Instytutu Geologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 42

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