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1

Wspomnienie. Prof. dr hab. Nonna Bakun-Czubarow (1937–2012)

100%

Gałązka-Friedman J.

Acta Societatis Metheoriticae Polonorum

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2013

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vol. 4

7-8

2

Mössbauerowskie badania powierzchni Marsa

64%

Maliszewski A., Gałązka-Friedman J.

Acta Societatis Metheoriticae Polonorum

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2009

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vol. 1

101-109

EN

In presented paper results of the investigation of Martian surface by means of Mössbauer spectroscopy are cited. The measurements were performed during MER mission with the use of “Spirit” and “Opportunity” rovers. Mössbauer spectra were analyzed in Mössbauer Laboratory of Faculty of Physics at Warsaw University of Technology.

3

Od Baszkówki do Kuźnicy – 27 lat badań mössbauerowskich meteorytów w Polsce

64%

Gałązka-Friedman J., Woźniak M.

Acta Societatis Metheoriticae Polonorum

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2023

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vol. 14

31-55

EN

The history, how the Mössbauer studies of meteorites began in Poland, was already described in our “Meteorites Odyssey… 20 years have passed”. One late afternoon (it was probably Spring 1995) I [Jolanta Gałązka-Friedman] was sitting in the Nonna Bakun’s office (at Banacha street) and we were talking about planet Mars. Suddenly Mr. Marian Stępniewski jumped to our room saying: We have a new Polish meteorite. It is called Baszkówka. Do you have any suggestion, how could we study this meteorite? Mössbauer spectroscopy – we both answered at the same time. And this is how it started, and it has been continued for the next quarter of a century. The first results of the Mössbauer studies of the Baszkówka meteorite were presented at the ISIAME conference in Johannesburg in 1996. In this paper we present the most important problems related to meteorites, which were investigated by us using Mössbauer spectroscopy. We will, however, show almost no formulas. We will try to explain everything by a method based on plots of Mössbauer spectra. We will try not to boast too much regarding our successes, but to explain also the problems that we were not able to resolve. While investigating the Baszkówka meteorite, we got most fascinated by troilite. We noticed that most of the laboratories determined the Mössbauer parameters of troilite incorrectly. They did not take into account the so-called theta angle, the value of which depends strongly on the number of vacancies and various additives. We thought that the theta angle may show us the parent body of the investigated meteorite. Unfortunately, this hypothesis turned up to be too difficult to defend. Then we studied Morasko meteorite and we discovered, by the comparison with Baszkówka meteorite Mössbauer spectra, and determined – up to now – not identified mineral phases present also in Morasko, such as pyrrhotite, daubréelite, taenite, tetrataenite, antitaenite and cohenite. In 2019 we published in MAPS a paper titled “Application of Mössbauer spectroscopy, multidimensional discriminant analysis and Mahalanobis distance for classification of equilibrated ordinary chondrites” (4M method), in which a new objective method for classification of ordinary chondrites is based on the knowledge of the Mössbauer spectra of the 4 main mineral phases present in the ordinary chondrites of H, L and LL type. Now we are working on the refinement of the 4M method enlarging our collaborative team by various foreign laboratories.

4

Żelazo w neurodegeneracji

64%

Gałązka-Friedman J., Friedman A.

Kosmos

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2014

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vol. 63

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issue 3

325-330

PL

W pracy omówiono możliwą rolę żelaza w powstawaniu chorób neurodegeneracyjnych, takich jak choroba Parkinsona, choroba Alzheimera i postępujące porażenie nadjądrowe (PSP). Otrzymane wyniki sugerują różne mechanizmy prowadzące do śmierci komórek nerwowych w tych chorobach.

EN

In this review we discuss the possible role of iron in induction of neurodegenerative disease like Parkinson's disease, Alzheimer disease and progressive supranuclear palsy (PSP). Our results suggest different mechanisms leading to nervous cells death in these diseases.

5

Meteoryty marsjańskie – czy rzeczywiście pochodzą z Marsa?

51%

Brzózka K., Woźniak M., Gałązka-Friedman J.

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vol. 15

27-46

EN

Although the concept of Martian meteorites was not yet known 50 years ago, today there are nearly 400 meteorites in this group. Only five of them were observed falling to Earth, the rest were found many years after their fall. They are all achondrites and, with a few exceptions, they all belong to the SNC (Shergotty-Nakhla-Chassigny) clan. At the end of the last century, the origin of these meteorites was hotly discussed and is intensively studied to this day. There is more and more evidence that their parent body is Mars. The main factor is the age of crystallization of SNC meteorites, repeatedly determined using various methods, mainly isotopic ones. This age does not exceed 2.4 billion years which is much less than the age of the Solar System, i.e. 4.6 billion years. Specific mineral and isotopic composition and proportion of gases trapped in the form of bubbles in the meteorite shock glass, identical in terms of noble gas content to the Martian atmosphere, also clearly points to Mars as the parent body of Martian meteorites. A significant contribution to the study of Martian meteorites is made by investigations carried out using Mössbauer spectroscopy based on iron, to determine the mineral composition of Martian meteorites and to compare the results with those obtained by spectrometers installed on Mars rovers during the MER – Mars Exploration Mission.

6

Badania mossbauerowskie meteorytu Zakłodzie

51%

Maliszewski A., Gałązka-Friedman J., Bakun-Czubarow N.

Acta Societatis Metheoriticae Polonorum

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2009

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vol. 1

110-121

EN

The Zakłodzie meteorite is primitive enstatite achondrite. Mössbauer spectra of powdered samples of the Zakłodzie meteorite were obtained. Results from Mössbauer spectroscopy were compared with results electron microprobe measurements.

7

Wstępne wyniki pomiarów moessbauerowskich meteorytu Shisr 176

51%

Gałązka-Friedman J., Szlachta K., Woźniak M.

Acta Societatis Metheoriticae Polonorum

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2013

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vol. 4

39-45

EN

In Moessbauer spectrum of Shisr 176 meteorite four main iron-bearing minerals were identified: olivine, pyroxene, kamacite and troilite. Iron distribution among this minerals in Shris meteorite is similar to Sołtmany meteorite and different than in Baszkówka meteorite. As these three meteorites are type L ordinary chondrites this comparison might be used as a basis of a new criterion of the classification of the meteorites.

8

Porównawcze badania mössbauerowskie meteorytów: Sołtmany (L6), Chelyabinsk (LL5) i Grzempy (H5)

51%

Szlachta K., Gałązka-Friedman J., Woźniak M.

Acta Societatis Metheoriticae Polonorum

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2014

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vol. 5

115-120

EN

Mössbauer studies of Chelyabinsk (LL5), Sołtmany (L6) and Grzempy (H5) show that the main iron bearing minerals in these meteorites are: Fe-Ni, troilite, olivine and pyroxene. Based on Mössbauer absorption area of different mineral phases, new set of parameters for classification of the ordinary chondrities were introduced. The most promising parameters are: the ratio of the olivine to pyroxene areas and the ratio of the silicate to metallic areas.

9

Badania mössbauerowskie chondrytów zwyczajnych typu H potwierdzają stopień ich zwietrzenia określony za pomocą skali W

45%

Jakubowska M., Rzepecka P., Duda P., Woźniak M., Gałązka-Friedman J.

Acta Societatis Metheoriticae Polonorum

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2017

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vol. 8

63-72

EN

Mössbauer measurements of ordinary chondrites type H performed in room temperature are presented. Three investigated meteorites: Carancas, Juancheng and Gao-Guenie are new falls with different terrestrial history. Results of weathering in different conditions during terrestrial life are well seen in their Mössbauer spectra. The level of weathering determined by scale W is in perfect agreement with Mössbauer measurements of these three ordinary chondrites.

10

Metoda 4M – nowe zastosowanie spektroskopii mössbauerowskiej w klasyfikacji zrównoważonych chondrytów zwyczajnych

39%

Woźniak M., Karwowski Ł., Gałązka-Friedman J., Duda P., Jakubowska M., Bogusz P.

Acta Societatis Metheoriticae Polonorum

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2020

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vol. 11

125-140

EN

The 4M method aims to determine the type of equilibrated ordinary chondrite only on the basis of the Mössbauer spectrum of the investigated meteorite. Mössbauer spectrum of non-weathered ordinary chondrite is comprised of four sub-spectra: two doublets and two sextets. One of the doublets consists of a signal from iron present in olivine and the other consists of a signal from iron present in pyroxene. Sextets on the other hand, contain signals from magnetically ordered iron. One sextet is related to the metallic phase (kamacite, taenite), whereas the second is related to troilite. A third of doublets, which emerges in weathered ordinary chondrites, is related to products of the oxidation of iron present in metallic phase. The spectral areas of olivine, pyroxenes, metallic phase and troilite, which were obtained from Mössbauer spectrum are proportional to the number of iron atoms present in relevant mineral phases. Some Mössbauer groups were inspired by this fact to construct different methods to determine the type (H, L, or LL) of investigated meteorites (Gałązka-Friedman et al. 2019, Hyp. Inter. 241(1)). However, these methods, based on subjective criteria, were only qualitative. Our group elaborated a quantitative method, which is based on objective criteria. We called it the "4M method" (where M are derived from meteorites, Mössbauer spectroscopy, multidimensional discriminant analysis (MDA), Mahalanobis distance) (Woźniak et al. 2019). This method was using only the Mössbauer experimental data, to which it applied advanced statistical methods. The base, which was created from Mössbauer data, consisted of three clusters H, L, LL. These clusters were constructed with sets of 4-dimensional vectors. The vectors are comprised of spectral areas of Mössbauer spectrum: ol (value proportional to iron present in olivine), pyr (value proportional to iron present in pyroxene), met (value proportional to iron present in metallic phase), tr (value proportional to iron present in troilite). To determine the type of investigated ordinary chondrite, its ol, pyr, met and tr values with average values of variables obtained for clusters H, L and LL need to be compared. The comparison can be performed with the use of MDA and Mahalanobis distance. Once Mahalanobis distance of the investigated meteoriteis is known, the level of similarity to three types of ordinary chondrites can be calculated. Examples of such calculations were performed for seven ordinary chondrites: Goronyo, Carancas, New Concord, NWA 7733, Leoncin, Sołtmany and Pułtusk. They were made with the use of the new base composed of 62 non-weathered ordinary chondrites. All results obtained with the 4M method yielded results consistent with traditional mineralogical methods.

11

Badania mössbauerowskie siarczków żelaza w chondrytach zwyczajnych typu LL

39%

Duda P., Rzepecka P., Jakubowska M., Woźniak M., Karwowski Ł., Gałązka-Friedman J.

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EN

Mössbauer measurements of three ordinary chondrites type LL were performed at room temperature. Values of spectral areas (SA) connected with troilite were different for investigated meteorites: for Oued el Hadjar – 4.8%, for Bjurböle – 10.6%, for NWA 8590 – 14.9%. Mössbauer spectra were fitted with the use of Recoil program. In all samples values of internal magnetic field and theta angle for subspectrum of troilite were the same: H = 31 T, theta=62°. In the sample of Bjurböle meteorite the signal from pyrrhotite was also noticed (SA = 1.7%, H = 25 T, theta = 33°). For meteorite NWA 8590 two subspectra of pyrrhotite were fitted with following parameters: for pyrrhotite I (SA = 1.1%, H = 27 T, theta= 41°), for pyrrhotite II (SA = 0.7%, H = 22 T, theta = 33°). It is easy to notice that the presence of pyrrhotite is correlated with higher amount of troilite in the samples of ordinary chondrites type LL.

12

Odróżnianie próbek prawdziwych meteorytów od kamiennych próbek meteorytopodobnych – ważna rola spektroskopii mössbauerowskiej

39%

Bogusz P., Gałązka-Friedman J., Brzózka K., Jakubowska M., Woźniak M., Karwowski Ł., Duda P.

Acta Societatis Metheoriticae Polonorum

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2022

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vol. 13

27-36

EN

Four stony pieces were delivered to our laboratory for checking if they are fragments of meteorites: first sample (sample No. 1) was a fragment of a rock that fell near Leoncin in Poland, second sample (sample No. 2) was a fragment of a rock found also in Poland in the vicinity of Pultusk, third sample (sample No. 3) was a meteorite specimen bought on the meteorite exchange and fourth sample (sample No. 4) was a stone object whose decline was observed in Europe. We obtained mössbauer spectra of the delivered samples. The mössbauer spectrum of sample No. 1 is very similar to the spectrum of ordinary chondrite of type LL. Comparison of the mössbauer spectrum of sample No. 2 with mössbauer spectrum of Pułtusk meteorite showed very large differences. In the spectrum of sample No. 3, a clear signal from iron-nickel alloy and troilite can be observed. These observations indicate that it is an object of extraterrestrial origin. Mössbauer spectrum of Sample No. 4 is similar to the spectrum of terrestrial magmatic rocks. Based on these spectrum we cannot clearly determine where the examined object comes from. This work demonstrates the usefulness of Mössbauer spectroscopy in recognizing samples that are fragments of meteorites.

13

Próby klasyfikowania chondrytów zwyczajnych przez zastosowanie spektroskopii mössbauerowskiej

39%

Gałązka-Friedman J., Woźniak M., Duda P., Jakubowska M., Bogusz P., Karwowski Ł.

Acta Societatis Metheoriticae Polonorum

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2019

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vol. 10

23-28

EN

Mössbauer spectra of equilibrated ordinary chondrites consist of two sextets due to magnetically ordered iron present in metallic phases and troilite and two doublets due to paramagnetic iron present in olivines and pyroxenes. The Mössbauer spectral areas of the different mineralogical phases in meteorites are proportional to the number of iron ions present in olivines, pyroxenes, metallic phase and troilite. This property of Mössbauer spectra was the basis for constructing various methods for the classification of ordinary chondrites. Review of these methods will be presented.

14

Badania mössbauerowskie 3 chondrytów zwyczajnych typu L (Beni M’hira, Hyattville, Saratov) – wyznaczanie niepewności powierzchni spektralnych

33%

Jakubowska M., Czarnecki A., Robak M., Zagrobelna A., Bogusz P., Woźniak M., Gałązka-Friedman J., Karwowski Ł., Duda P.

Acta Societatis Metheoriticae Polonorum

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2019

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vol. 10

29-33

EN

Mössbauer 57Fe measurements of three ordinary chondrites type L were performed at room temperature. The measurements were repeated in the same experimental conditions. The experimental spectra were elaborated with „Recoil” program. The absorption areas of the same ordinary chondrite samples were very similar. The maximum variation was about 2% for doublets (paramagnetic iron) and 3% for sextet (magnetically ordered iron).

15

Badania mössbauerowskie trzech chondrytów zwyczajnych typu H i trzech chondrytów zwyczajnych typu LL – wyznaczanie niepewności powierzchni spektralnych

33%

Jakubowska M., Buczek A., Gwiździel K., Djellouli A., Nowak F., Woźniak M., Gałązka-Friedman J., Karwowski Ł., Duda P.

Acta Societatis Metheoriticae Polonorum

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2019

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vol. 10

34-39

EN

Mössbauer 57Fe measurements of three ordinary chondrites type H and of three ordinary chondrites type LL were performed at room temperature. The spectral areas were fitted using the “Recoil” program (Lagarec i in. 1998). Fitting was repeated three times which allowed us to determinate the differences between the results of fits performed by different persons.

Refine search results

Wspomnienie. Prof. dr hab. Nonna Bakun-Czubarow (1937–2012)

Mössbauerowskie badania powierzchni Marsa

Od Baszkówki do Kuźnicy – 27 lat badań mössbauerowskich meteorytów w Polsce

Żelazo w neurodegeneracji

Meteoryty marsjańskie – czy rzeczywiście pochodzą z Marsa?

Badania mossbauerowskie meteorytu Zakłodzie

Wstępne wyniki pomiarów moessbauerowskich meteorytu Shisr 176

Porównawcze badania mössbauerowskie meteorytów: Sołtmany (L6), Chelyabinsk (LL5) i Grzempy (H5)

Badania mössbauerowskie chondrytów zwyczajnych typu H potwierdzają stopień ich zwietrzenia określony za pomocą skali W

Metoda 4M – nowe zastosowanie spektroskopii mössbauerowskiej w klasyfikacji zrównoważonych chondrytów zwyczajnych

Badania mössbauerowskie siarczków żelaza w chondrytach zwyczajnych typu LL

Odróżnianie próbek prawdziwych meteorytów od kamiennych próbek meteorytopodobnych – ważna rola spektroskopii mössbauerowskiej

Próby klasyfikowania chondrytów zwyczajnych przez zastosowanie spektroskopii mössbauerowskiej

Badania mössbauerowskie 3 chondrytów zwyczajnych typu L (Beni M’hira, Hyattville, Saratov) – wyznaczanie niepewności powierzchni spektralnych

Badania mössbauerowskie trzech chondrytów zwyczajnych typu H i trzech chondrytów zwyczajnych typu LL – wyznaczanie niepewności powierzchni spektralnych