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1
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Zapis geochemiczny wymierania K/T świadectwem katastrofy kosmicznej

100%
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.
2
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Przegląd potencjalnych śladów życia pozaziemskiego w meteorytach

100%
Brachaniec T.
Kosmos
|
2013
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vol. 62
|
issue 1
31-36
PL
Początki naukowego udowodnienia hipotezy panspermii sięgają końca XIX wieku. W latach 70 i 80tych XX wieku wysunięto twierdzenie jakoby komety były nośnikiem życia w przestrzeni kosmicznej. Spadki meteorytów: Murchinson, Orgueil czy Nakhla skierowały wzrok badaczy ku Marsowi, jako potencjalnie zasiedlonej przez mikroorganizmy planecie. W ciągu wielu lat badań chondrytów węglistych zaobserwowano wiele struktur, które swą morfologią i wielkością przypominają ziemskie bakterie. Pomimo tego nie znaleziono jednak niepodważalnych dowodów na istnienie pozaziemskiego życia.
EN
The origins of scientific evidence of panspermia hypothesis back to the late nineteenth century. In the 70s and 80s of the twentieth century the claim that the comets are the source of life in space has been put forward. Fall of meteorites like: Murchison, Orgueil and Nakhla directed attention of researchers to Mars, as a planet potentially inhabited one time by microorganisms. Over the years studies of carbonaceous chondrites recorded many structures the morphology and size of which proved similar to those of Earth's bacteria. Despite this there is still no clear evidence for the existence of extraterrestrial life.
3
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Impakty Ries-Steinheim. Wzorzec rozrzutu mołdawitów

100%
Brachaniec T.
Acta Societatis Metheoriticae Polonorum
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2013
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vol. 4
22-27
EN
In the 1960s demonstrated that the Ries-Steinheim craters, located in the south of Germany and tektites types moldavites are the same age. Ries crater strewnfield covers eastern Germany, the Czech Republic and northern Austria. A few old scientific studies have not given a clear answer about model creation and the actual size of moldavite strewnfield. For this reason 11 years ago created a model that was to clarify these issues.
4
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Początki badań impaktów

100%
Brachaniec T.
Acta Societatis Metheoriticae Polonorum
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2013
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vol. 4
9-21
EN
Impacts geology is a multi-disciplinary science, focus aspects of meteoritics, astronomy, petrography, geochemistry, structural geology, sedimentology and geophysics. The first studies of craters began in the 60s. Significant events in the development of this science were: the first research of the Cosmos, development of mineralogical and geochemistry analysis and important papers. Significant progress in the development of research studies reflect the number of newly discovered craters. Many aspects associated with them, such as dating, strewnfields, water impacts are still fairly problematic.
5
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Wpływ fali uderzeniowej na zmiany tektoniczne osadów jurajskich wokół krateru Ries – studium SEM wybranych skamieniałości

64%
Brachaniec T., Szopa K.
Acta Societatis Metheoriticae Polonorum
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2016
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vol. 7
21-26
EN
Upper Jurassic sediments of the Ries crater contain numerous fossils including massive and calcite belemnites, which show brittle deformations caused by impact shockwave. The structures are observed in macro and micro scale. SEM observations allowed to distinguish different tectonic forms in investigated material, what show the individualism of breccias formed during the Ries impact.
6
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Anomalie platynowców w historii Ziemi

64%
Wieczorek A., Brachaniec T.
Acta Societatis Metheoriticae Polonorum
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2016
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vol. 7
177-181
EN
The platinum-group elements comprise a very small percentage of elements in the earth’s crust. The primary sources of them are meteorite impacts and volcanism. The study of PGEs anomaly in sediment profiles as a possible indicator of impact began in 1980, when was suggested a link between high levels of iridium and the mass extinction event in Late Cretaceous.
7
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Problematyczność identyfikacji impaktu na podstawie geologicznych mikrośladów

64%
Brachaniec T., Broszkiewicz A.
Acta Societatis Metheoriticae Polonorum
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2013
|
vol. 4
28-36
EN
Geological record contains macro and micro traces of the impacts. Macro traces are much easier to interpretation and diagnosis. Undisputed micro evidences of the impact are platinum group element anomalies and shock minerals. In the proximal parts of strewnfield may occur spherules, iron spinels, fullerenes or even deformed fossils. Nevertheless, due to problematic in the recognition and determine the origin does not qualify them as clear evidences of the impact.
8
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Kopalne ordowickie chondryty – przegląd danych

64%
Brachaniec T., Brom K.
Acta Societatis Metheoriticae Polonorum
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2015
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vol. 6
23-25
EN
The largest group of fossil meteorites are L type chondrites, found in the Middle Ordovician limestones in Sweden. Until now, 101 specimes were discovered. Probably, they come from collisions in the asteroid belt. They are completely altered, except the chromite grains.
9
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Identyfikacja kraterów uderzeniowych ze względu na rodzaj środowiska

64%
Brachaniec T., Brom K.
Acta Societatis Metheoriticae Polonorum
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2015
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vol. 6
26-33
EN
It seems that the only correct way to identify impact craters is a combination of theoretical analysis, visual observation and experimental analysis, which are inextricably linked to the environment in which the crater was formed. Undoubtedly, the shock metamorphism is an essential diagnostic tool for the identification of the crater. The depth of water is a major problem in the formation of the marine craters.
10
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Pęcherzyki w szkliwie mołdawitów

64%
Brachaniec T., Szczyrba M.
Acta Societatis Metheoriticae Polonorum
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2014
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vol. 5
17-20
EN
Bubbles in tektites can be formed by several different mechanisms. A review of published data has shown that the gas pressure in the bubbles is generally low. Composition of the contained gases published in most articles sharply differs from the composition of the terrestrial atmosphere.
11
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Późno dewońskie impakty

64%
Brachaniec T., Brom K.
Acta Societatis Metheoriticae Polonorum
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2015
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vol. 6
34-37
EN
In 1970 the first hypothesis, which claimed that large meteorite landed in ocean at Frasnian/Famennian boundary and caused mass extinction was proposed. In Late Devonian deposits there are many potential impact evidences. Nonetheless, many years of searching for iridium anomaly, shocked minerals, microtektites and craters in the F/F boundary passage deposits have failed. The most probably crater, which could be connected with F/F boundary is Siljan Ring in Sweden.
12
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Fragmenty kopalnego meteorytu z Lechówki: charakterystyka mineralogiczna i geochemiczna

52%
Szopa K., Karwowski Ł., Krzykawski T., Brachaniec T.
Acta Societatis Metheoriticae Polonorum
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2017
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vol. 8
100-109
EN
Fossil iron meteorites are extremely rare in the geological sedimentary record. In the boundary clay from the outcrop at the Lechówka quarry (Poland), fragments of the paleometeorite were found in the Cretaceous-Paleogene boundary clay layer. The fragments of meteorite (2–6 mm in size) and meteoritic dust are metallic-grey in colour. Analyses of the meteorite from Lechówka reveal the presence of Ni-rich minerals with a total Ni amount of 2–3 wt%. They are represented by: taenite, kamacite, schreibersite, Ni-rich magnetite, and Ni-rich goethite. The investigated remnants of paleometeorite apparently represent an independent fall and does not seem to be derived from the K-Pg impactor.
13
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Jak odróżnić oryginał od fałszywek: kopalny meteoryt z Lechówki

52%
Szopa K., Karwowski Ł., Krzykawski T., Brachaniec T.
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vol. 9
112-122
EN
Value of meteorites can be explained at least in two aspects. From the scientific point of view they are priceless objects, which can bring important information about the very beginning of the Universe. Because of their rarity anduniqueness, the meteorites often are extremely expensive in the term of a commercial value. This situation is used by dishonest sellers who offer fake meteorites. It has happened with the paleometeorite remnants, which were originallyfound in Cretaceous-Paleogene clay boundary in Lechówka, Poland. The so-called fake Lechówka remnants were offered by one seller on domestic online shops. All grains had certificate of authenticity that was included with the sold grains. In this paper we described the most common and diagnostic features, which can be easily applied to distinguish the original meteorite remnants from the fake ones.
14
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Powstawanie kraterów impaktowych i ich rodzaje

52%
Brachaniec T., Tymiński Z., Broszkiewicz A.
Acta Societatis Metheoriticae Polonorum
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2014
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vol. 5
30-46
EN
Craters form after meteoroid or asteroid impact son celestial bodies surface are created during three different periods: contact/compression, excavation and modification stage. Depending on its size the craters can be divided into three main types: simple, complex and multi-ring craters. The enormous energy released during the impact forms evident records in basis as shatter cones or breccias and affect the surrounding rock (visible only in micro scale) by shock metamorphism, which has no equivalent in the Earth’s geological processes.
15
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Trynityt – wstępne dane SEM oraz XRD szkliwa nuklearnego z USA

52%
Brachaniec T., Szopa K., Krzykawski T., Broszkiewicz A.
Acta Societatis Metheoriticae Polonorum
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2015
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vol. 6
38-41
EN
Trinitite is a glass produced as a result of a nuclear explosion. The characteristic feature of the investigated material are bubbles and presence of incompletely melted quartz grains.
16
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Pierwsze znalezisko polskich mołdawitów

52%
Brachaniec T., Karwowski Ł., Szopa K.
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EN
In Lower Silesia, in the late Miocene sediments moldavites were discovered. Finding of polish moldavites may change the existing model of tektites distribution, after the impact in the Ries crater area. Further studies are planned and should bring a new information.
17
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Skład chemiczny i mineralny Szkła Pustyni Libijskiej: badania wstępne z wykorzystaniem mikroskopu skaningowego (SEM) oraz mikrosondy elektronowej (EMPA)

52%
Szopa K., Brachaniec T., Szczyrba M.
Acta Societatis Metheoriticae Polonorum
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2015
|
vol. 6
103-106
EN
In this study, fragment of the Libyan Desert Glass was investigated by using scanning electron microscope (SEM) and electron microprobe (EMP). The analyses reveal two differ areas in chemistry. the first one is homogenous in composition, but the second one is slightly enriched in Ti, and Fe content. During SEM and EMP observation, a relict of primary minerals was noted as a cracked zircon crystals.
18
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Czy w Polsce są autochtoniczne tektyty?

52%
Brachaniec T., Szopa K., Karwowski Ł.
Acta Societatis Metheoriticae Polonorum
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2016
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vol. 7
17-20
EN
Undoubtedly, the river transport is very important in tektites distribution. Most of the moldavites are located in fluvial sediments, what indicates their redeposition origin. Similar situation is on the territory of Poland. Finding of the autochthonous Polish tektites seems very difficult and requires further fieldworks.
19
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Polskie mołdawity – podsumowanie dotychczasowej wiedzy

52%
Brachaniec T., Szopa K., Karwowski Ł.
Acta Societatis Metheoriticae Polonorum
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2017
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vol. 8
18-22
EN
Up to now, twenty Polish moldavites were recovered from fluvial deposits of Gozdnica formation. Apart from typical bottle green colour, moldavites also yield other typical features for tektites like presence of bubbles and inclusions of lechatelierite. Low degree of corrosion and palaeogeography suggest river transport flow from Lusatia to the east direction in the Miocene.
20
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Możliwy wpływ materii pozaziemskiej na bioróżnorodność ordowickich szkarłupni – dane wstępne

52%
Brachaniec T., Salamon M. A., Karwowski Ł., Wieczorek A.
Acta Societatis Metheoriticae Polonorum
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2016
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vol. 7
13-16
EN
The Ordovician was a period with large meteorite showers, what was confirmed by fossil chondrite finds in Swedish limestones. In Bukówka section near Kielce deposits of the same age are exposed. During field works was noticed that echinoderms do not occur in three samples. It was proved that echinoderms were very sensitive to environmental changes and their disappearance was associated with a meteorite falls.
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