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1

Feliks Drzewiński i „elektrogeneza” meteorytów

100%

Kosiński J. W.

Acta Societatis Metheoriticae Polonorum

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2014

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vol. 5

81-88

EN

Feliks Drzewiński was the professor of mineralogy and physics at Wilno (Vilnius) University. He was the author of the text-book of mineralogy – first in Polish. Meteorites also interested him. Drzewiński was the follower of the theory of the atmospheric origin of meteorites. The natural electricity of atmosphere was had the cause of their rise.

2

Cieszyn – nowy polski meteoryt

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Karwowski Ł., Kotowiecki A.

Acta Societatis Metheoriticae Polonorum

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2009

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vol. 1

48-51

EN

On 21 of July 2001, small fragment of metal has been found on side walk, near branch of Silesian University in Cieszyn, by Ms. Małgorzata Kotowiecki. After a few years, the metallic fragment was carefully study. The investigation show that the metallic element has meteoritic origin. The mineral composition of the meteorite (kamacite, taenite, tetraenite, troilite, daubreelite) classify it as an iron meteorite and the most probably is representative of octahedrite. The meteorite has features of shock metamorphism and represent very old fall. It could be supposed that the meteorite has been transported to the destination place, together with gravel.

3

Skład chondrytów zwyczajnych a potencjalne surowce pasa planetoid

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Łuszczek K., Przylibski T. A.

Acta Societatis Metheoriticae Polonorum

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2011

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vol. 2

92-111

EN

In this article the authors present a simple method of determining the content of selected metal raw materials (Fe, Ni, Co) on the parent bodies of ordinary chondrites. Thanks to the use of planimeter for measuring, under microscope, polished slices of meteorites, it is possible to estimate quite accurately the proportion of these metals in the parent bodies of meteorites, i.e. on asteroids. When it comes to analysing a large number of polished slices, these results will be most likely comparable to much more expensive results of chemical tests conducted on meteorites. Based on the analysis of 16 thin polished sections and polished slices of 11 ordinary chondrites, the authors found out that the highest content of Fe, Ni and Co ore minerals, reaching 10,06% of the total volume, can be found in ordinary chondrites from group H. For ordinary chondrites from groups L and LL, it makes 3,86% and 3,93% of the volume respectively. Employing the results of chemical analyses available in literature sources, the authors also estimated the size of Fe, Ni and Co resources for several selected asteroids. These bodies contain higher concentrations of iron, nickel and cobalt than terrestrial deposits (those found in the earth’s crust). The total content of Fe on parent bodies of even the most deficient in metals group LL of ordinary chondrites is about twice as high as that in the earth’s crust. Cobalt occurs on parent asteroids of ordinary chondrites in concentrations 15–24 times as high as those in the earth’s crust, and the concentrations of Ni are 100–180 times as high as those in the earth’s crust. The contents of these metals on parent asteroids of ordinary chondrites are also several times as high as those in currently extracted deposits in the earth’s crust. Taking into account the mean annual terrestrial production of these metals, the authors have estimated that a parent asteroid of ordinary chondrites with the size between 433 Eros and 6 Hebe could satisfy our need for Fe, Ni and Co for the nearest several million to dozens of billion years. Considering the fact that asteroid belt contains plenty of such objects, and as many asteroids built chiefly of Fe-Ni alloy, one should regard this section of the Solar System as a practically inexhaustible source of metal raw materials. The prospect of their exploitation is probably much nearer than we can currently imagine.

4

Skład chondrytów węglistych jako wyznacznik zasobności planetoid typu C w surowce metaliczne

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Blutstein K., Przylibski T. A., Łuszczek K., Gruchot J.

Acta Societatis Metheoriticae Polonorum

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2022

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vol. 13

7-26

EN

The chemical composition of carbonaceous chondrites was analysed in terms of the content of selected 24 metals, including noble metals and rare-earth metals. Based on the obtained results, the abundance of C-type asteroids in metallic raw materials was estimated and compared to the concentration of terrestrial deposits and the average content in the Earth’s crust. All the analysed elements, except rare earths, showed higher concentrations in carbonaceous chondrites than in the Earth’s crust, but most of them did not match the Earth’s deposit contents. The exception is Fe and Ni, the concentrations of which in carbonaceous chondrites significantly exceed the Earth’s deposit concentrations. The profitability of mining operations on C-type asteroids is also increased by the number of accompanying mineral commodities, mainly metals (Cr, Co, Cu, Au, Pt, Pd, Ag), and water ice. In addition, the parent bodies of carbonaceous chondrites occur relatively close to the moons of Jupiter and Saturn – potential space mission targets.

5

Impacts and mitigation strategies for gully erosion: The Nigerian perspective

100%

Sule A., Ebong E. D., Luntsi D. K.

World News of Natural Sciences

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2023

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vol. 51

112-132

EN

The development of gullies and other forms of erosion have become the greatest environmental hazard and disaster rampant in southeastern Nigeria. Gully erosion is most often triggered or accelerated by a combination of inappropriate land use and extreme rainfall events. Geophysical methods such as electrical resistivity techniques has been the most used method in investigating gully erosion prone zones in southeastern Nigeria. Through productive review of existing research this study presents a comprehensive review of the causes and environmental impacts of gully erosion as well as control measures aimed at reducing and mitigating the threats posed by gully erosion within the region. From the study the major causes of gully erosion within the study area include both natural and anthropogenic sources. The study concludes that the most problem of gully erosion in southeastern Nigeria is damage to footpaths, roads and properties, while the least is loss of biodiversity. While control measures have been highlighted to mitigate the causes of gully erosion challenges in the area. These include diversion banks to divert runoff to a stable outlet to ease the flow run-off and stabilization walls should be constructed to prevent the encroaching endemic gully erosion from cutting the road, cultivation of vegetative cover and intensive community based campaigns were advised to minimize and control gully erosion.

6

Identyfikacja minerałów meteorytu NWA 4505 za pomocą spektroskopii Ramana

100%

Szurgot M., Kisiel R., Kisiel K.

Acta Societatis Metheoriticae Polonorum

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2013

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vol. 4

71-89

EN

Ordinary chondrite NWA 4505 was investigated by confocal Raman micro-spectroscopy. Olivine (Fa0–22), orthopyroxene (Fs6–26), anorthoclase, HT plagioclase, whitlockite, graphite and diamond have been identified. Olivine and orthopyroxene are common and exhibit wide range of Raman shift. Distributions of Raman peaks for olivines and pyroxenes have been analyzed. Narrow, well defined bands of low Ca pyroxenes and olivines indicate on the high structural order and on the high petrologic type of chondrite. The wide range of Fa content in olivine and Fs in pyroxene may indicate that NWA 4505 is an unequilibrated ordinary chondrite.

7

Jeszcze jedna dyskusja na temat daty spadku meteorytu Morasko

100%

Walesiak T.

Acta Societatis Metheoriticae Polonorum

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2017

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vol. 8

123-148

EN

It’s over 100 years after discovery of the first iron meteorite in the area of Morasko, but still we are not sure about date of the fall. Recent researches suggest that it happened about 5000 years ago, however there are some other facts proving, that event took place in the last millenium. Verification o 14C radio carbon dating results revealed, that it can give us only the maximum date (meaning: not older than). The main problem was that probes were taken from mixed types of sediments – some created before and some after the impact. Few years earlier there was another 14C examination of sediments lying beyond the floor of 2 small cavities and their age was estimated to be approximatelly 700 years BP. Similar results were received after verification of organic matter under charcoal in the weathering crust of the meteorite, which was found in the Morasko Restricted Area. Another proof was discovery of shrapnel in the root of old tree, which could not be older than 800–1000 years. At least 2 times it was discussed, if finding of Morasko iron meteorites couldn’t be matched with described observation A.D. 1301, mentioned in annales, hovever nobody was able to prove it. Analysis of historical documents lead to information of appearance of 3 suns, after sunrise, what happened in 14 Feb. 1271. Further investigation of other sources gave us even more facts. We can read in annales that in the same year, castles and cities were burned and destructed to the ground. There is also information that Poznan, the largest city in the area (approx 7.5 km South from the Morasko), was burned in (or shortly before) the year of 1274. What is more Annales from Poznan and from its parent town Wielkopolska were finished in A.D. 1271, just in the middle of the sentence. Finally, confirmation is given by archeological researches, which tell us that city walls and castle of Poznan were ruined shortly after they were constructed, but scientists found difficulty to answer, when exactly it could happen. The main problem was unknown weapon, able to leave such a large destruction, even when considered next centuries. As we can find in annales that Poznan in A.D. 1253 had castle and fortifications so only iron meteorite impact in 1271, producing craters in the area of Morasko and Umultowo, can explain the scale of the devastation discovered by archeologists.

8

Zapis geochemiczny wymierania K/T świadectwem katastrofy kosmicznej

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Brachaniec T.

Acta Societatis Metheoriticae Polonorum

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2012

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vol. 3

17-29

EN

The most important event in the study causes of K/T extinction became Alvarez results of 1980. They were the first, by examining the position in Gubbio and Stevns Klint, suggested a link between high values of the platinum elements in the sediment and the extinction 65 million years ago. For a thorough analysis of the geochemical anomalies is necessary continuous sedimentary record on the K/T boundary. Because of the stratigraphic gap in the Central Valley of Vistula iridium content test results were inaccurate. In 2008 discovered the first complete record of iridium anomalies in eastern Poland, in Lechówka quarry.

9

Wietrzenie w meteorycie Nantan (porównanie wybranych wtórnych faz mineralnych z meteorytów Nantan i Morasko)

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Gurdziel A.

Acta Societatis Metheoriticae Polonorum

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2015

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vol. 6

42-52

EN

The main products of terrestrial weathering of metallic phases in Nantan meteorite are represented by: goethite, lepidocrocite and others nonstructural Fe-hydroxides with differ hydratation ratio. Sometimes iron hydroxides are associated with high-nickel phases. Hydrated iron phosphates are observed like, e.g. vivianite, in vicinity schreibersite. Only phosphides, relics of taenite and the hight-nickel phases are preserved in strongly weathered specimens. Generally, both the process of weathering and the types of secondary phases are similar in Nantan and Morasko meteorites. The differences are very small and are caused by slightly different chemical composition of both meteorites.

10

Sferule z granicy Kreda-Paleogen (Lechówka, Polska) – wstępne dane

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Brachaniec T., Szopa K., Karwowski Ł., Krzykawski T., Salamon M., Brom K.

Acta Societatis Metheoriticae Polonorum

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2015

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vol. 6

17-22

EN

Samples of boundary clay from Cretaceous–Paleogene deposits from Lechówka, Poland were examined for spherules to confirm the impact origin of the sediment. The chemical composition of investigated spherules show similarities to material from the K–Pg boundary from Stevns Klint. The impact genesis of the spherules is confirmed by the presence of nickel-rich spinel grains on their surfaces. The deposits with spherules are built by smectite with Al and Mg enrichment. This cheto smectite is forming as a result of the weathering of the impact glass.

11

Pomiary radionuklidów kosmogenicznych w meteorycie z Oslo i interpretacja wyników

100%

Tymiński Z., Miśta E., Kalbarczyk P.

Acta Societatis Metheoriticae Polonorum

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2013

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vol. 4

115-120

EN

Nondestructive high-resolution gamma spectrometry techniques were used to measure cosmogenic radionuclides in 32.5g fragment of Oslo meteorite which the fall was not observed. Five radioisotopes with half-lives ranging from 278.1 days to 7.17´105 years have been detected. The signals observed for 26Al, 22Na, 54Mn, 57Co and 60Co were interpreted in terms of the meteoroid depth profiles and terrestrial age after the fall. The pre-atmospheric radius of the chondrite was estimated to be >100 cm. Concentrations of short-lived nuclides limits the fall date before December 2011.

12

Upadek i rozmieszczenie fragmentów meteorytu Pułtusk

100%

Kosiński J. W., Kamińska E.

Acta Societatis Metheoriticae Polonorum

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2011

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vol. 2

57-66

EN

From several years the fall of meteorite the Pułtusk is the object of interest again: they are this both theoretical works, as also field. Article presents fragment these workings and it contains the results of intimate works and searching.

13

Geophysical Survey of Basement Complex Terrain Using Electrical Resistivity Method for Groundwater Potential

100%

Adeeko T. O., Samson D. O., Umar M.

World News of Natural Sciences

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2019

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vol. 23

154-165

EN

A geophysical survey of basement complex using electrical resistivity method was carried out so as to provide geological and geophysical information on the different subsurface features. The sought-for parameters include thickness, depth, basement for groundwater potential and aquifer protective capacity. The acquired data were process using Win-Resist software and surfer 8, and the result was then analyzed and interpreted. Accordingly, 3-4 geoelectrical layers within the subsurface delineate the area: top soil, lateritic layer, weathered/fractured layer and fresh rock. Resistivity values of the top soil range between 55.5 mΩ to 749.7 mΩ, with average thickness of 0.4 m to 3.6 m, while the lateritic layer ranges between 153.3 mΩ to 862.0 mΩ, with average thickness of 4.5 m to 20.7 m, the weathered/fractured layer in turn ranges between 15.6 mΩ to 698.9 mΩ, with average thickness of 7.7 m to 55.2 m, and the fresh rock ranges between 13.4 mΩ to 5102 mΩ, with infinite homogeneous half space. Over all, the longitudinal conductance of the overburden units range from 0.147 mhos to 0.957 mhos and the overburden is thick enough for groundwater exploration activities. The results provide reasonably information that the aquifer units are weathered/fractured layers with a significant groundwater potential that is free of contamination.

14

Impaktyty struktury Popigaj, Syberia

100%

Kosina R.

Acta Societatis Metheoriticae Polonorum

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2015

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vol. 6

74-89

EN

The multi-ring Popigai structure formed in the crystalline rocks of sub-polar Siberia is the largest one in the Asia territory. The complexity of its structure, the weak erosion and numerous, deep geological drillings determine its uniqueness when compared to the rocks found in Chicxulub, Vredefort and Sudbury. Shocked rocks, mainly gneisses, have fluidal texture, heavily brecciated garnets and opaque minerals. The presence of high- and low-temperature impact melt breccia types called tagamites have been described from the crater. Breccias of suevite express variability from low-glassy types to highly porous structures similar to tuffisites. The part of melts or glasses with vesicles, crystallites and clasts can be interpreted as pseudotachylite. Mineral globules and corroded clasts can be found in impactites. Feldspars are transformed into maskelynite, and quartz into lechatelierite. Sometimes quartz shows the ballen structure and has nebulous contacts. Graphite, ilmenite, and pyrite are dispersed in tagamites. The secondary mineralization of zeolites occurred in vesicles.

15

„Pożegnanie kraterów Morasko” – polemika!

100%

Socha K.

Acta Societatis Metheoriticae Polonorum

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2020

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vol. 11

159-166

16

Badania ureilitu NWA XXX za pomocą analitycznej mikroskopii elektronowej

100%

Szurgot M.

Acta Societatis Metheoriticae Polonorum

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2009

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vol. 1

137-141

EN

New NWA XXX ureilite was investigated by analytical electron microscopy to determine elemental and mineral composition of the meteorite. The main minerals: olivines and clinopyroxenes have been identified and characterized. The texture, elemental and mineral composition of the meteorite are typical of olivine-pyroxene achondrites.

17

Czy we Fromborku jest krater meteorytowy?

100%

Kosiński J. W.

Acta Societatis Metheoriticae Polonorum

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2011

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vol. 2

187

18

Assessing the Potential Health Effect of Solid Waste Dump Site Located Close to Residential Areas in Jalingo, Taraba State Using Geospatial Techniques

100%

Tukura E. D., Ojeh V. N., Philip A. H., Ayuba A.

World News of Natural Sciences

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2018

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vol. 20

160-175

EN

The study examined the application of Remote Sensing and Geographic Information Systems in estimating the potential health effects of solid waste dump sites located close to residences within Jalingo town, in mapping out the existing dumpsites, in carrying out proximity analysis and in assessing the impact of these dump sites on residences within the study area. Both primary and secondary data were used to achieve the objectives of the study. The primary data were the geographical coordinates of all the dumpsites from the selected five wards in the study area. This was obtained using hand held GPS. The secondary data applied included administrative boundary maps (Ancillary data) and recorded cases of malaria incidence from health facilities located in the area. Data were analyzed in ArcGIS 10.3 environment to display the X and Y coordinates and to obtain the spatial distribution of the dumpsites on a composites map. Geo-processing using ring buffering was carried out to form a proximity analysis of the dumpsites. Assessment of the impact of the dumpsites on the health of dwellers within the study area was achieved from a proximity analysis that compared location with the recorded cases of malaria. The findings of the study revealed that proximity analysis of a 500m and 1000m standard demonstrated that residences within 7.857 km2 and 31.439 km2 of each dumpsite, respectively, are in danger of dumpsite related disease. This is because out of the total built-up area of 61.479 km2 in the study area; most of the dumpsites located within 31.439 km2 of the built-up area do not conform to the NESREA standard criteria of siting a dumpsite. The assessment of the cases of malaria incidence recorded and the numbers of dumpsites revealed that dumpsites location close to residence had more cases of malaria incidence, thus it is believed that the dumpsites contribute to the breeding the female anopheles mosquito that transmit malaria to humans. The study recommends dumpsite location suitability analysis be performed in Jalingo and that to avoid endemic Malaria, the appropriate authorities close down dumpsites close to residences.

19

Ameboidalne oliwinowe agregaty w chondrytach zwyczajnych

100%

Owocki K.

Acta Societatis Metheoriticae Polonorum

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2011

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vol. 2

112-116

EN

An amoeboid olivine aggregates (AOA) are the refractory end-member of a family of fine-grained inclusions. They consist of masses of fine-grained (generally forsteritic) olivine crystals with other phases dispersed in between. The AOA are important components of carbonaceous chondrite and have been reported only from the unequilibrated Semarkona LL3.0 ordinary chondrite and examined by author equilibrated Sahara 02500 ordinary chondrite. The AOA’s are thought to represent solar-nebula condensates that experienced high-temperature annealing, but largely escaped melting. An amoeboid olivine aggregate found in the equilibrated ordinary Sahara 02500 chondrite has experienced weak planetary metamorphism resulting in equilibration and recrystallization of fine-grained olivine and albitic feldspar. The aggregate contains several fine-grained inclusions consisting of recrystallised fayalitic olivine, feldspar and minor amounts of metal, diopside, chromite, and apatite.

20

Pożegnanie kraterów Morasko

100%

Socha K.

Acta Societatis Metheoriticae Polonorum

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2011

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vol. 2

127-137

Refine search results

Feliks Drzewiński i „elektrogeneza” meteorytów

Cieszyn – nowy polski meteoryt

Skład chondrytów zwyczajnych a potencjalne surowce pasa planetoid

Skład chondrytów węglistych jako wyznacznik zasobności planetoid typu C w surowce metaliczne

Impacts and mitigation strategies for gully erosion: The Nigerian perspective

Identyfikacja minerałów meteorytu NWA 4505 za pomocą spektroskopii Ramana

Jeszcze jedna dyskusja na temat daty spadku meteorytu Morasko

Zapis geochemiczny wymierania K/T świadectwem katastrofy kosmicznej

Wietrzenie w meteorycie Nantan (porównanie wybranych wtórnych faz mineralnych z meteorytów Nantan i Morasko)

Sferule z granicy Kreda-Paleogen (Lechówka, Polska) – wstępne dane

Pomiary radionuklidów kosmogenicznych w meteorycie z Oslo i interpretacja wyników

Upadek i rozmieszczenie fragmentów meteorytu Pułtusk

Geophysical Survey of Basement Complex Terrain Using Electrical Resistivity Method for Groundwater Potential

Impaktyty struktury Popigaj, Syberia

„Pożegnanie kraterów Morasko” – polemika!

Badania ureilitu NWA XXX za pomocą analitycznej mikroskopii elektronowej

Czy we Fromborku jest krater meteorytowy?

Assessing the Potential Health Effect of Solid Waste Dump Site Located Close to Residential Areas in Jalingo, Taraba State Using Geospatial Techniques

Ameboidalne oliwinowe agregaty w chondrytach zwyczajnych

Pożegnanie kraterów Morasko