The Chiemgau impact iron silicides strewn field

New Open Access article:

Michael A. Rappenglück (2022): Natural Iron Silicides: A Systematic Review

In this extensive review article, author Rappenglück devotes a more detailed section to the world’s unique iron silicide strewn field of the Chiemgau impact. This section can be read here below.

As an open access article, the entire article can also be clicked here.

Abstract

This review systematically presents all finds of geogenic, impact-induced, and extraterrestrial iron silicide minerals known at the end of 2021. The respective morphological characteristics, composition, proven or reasonably suspected genesis, and possible correlations of different geneses are listed and supported by the available literature (2021). Artificially produced iron silicides are only dealt with insofar as the question of differentiation from natural minerals is concerned, especially regarding dating to pre-industrial and pretechnogenic times.

Keywords: mineralsfulguritesplanetary mantles and coresterrestrial planetsmoonexoplanetsmeteoritesureilitesextraterrestrial dustejecta vaporcircumstellar envelopsinterstellar matternovaesupernovaeartificial

Excerpt of the article on the iron silicide strewn field of the Chiemgau impact. The respective references on the iron silicides can be found in the main article

11. Iron Silicides Associated with Craters

In a few cases, iron silicides may be associated with individual craters or crater fields (Figure 9). The Haughton impact crater (Devon Island, Territory of Nunavut, Canadian Arctic, 75◦220 N, 89◦410 W), 23–24 km in diameter, contains iron silicides together with moissanite (SiC, native Si, and other silicides of Al, Ni, Ba, Ti, and V (here VSi2). The hexagonal crystals comprise vanadium silicide (VSi2) with minor Ti and Ba substitutions for V within silicate glass produced by the impact event [402,403]. The impact is dated to the Eocene, 39 my ago.

Figure 9. Iron silicides associated with craters: (1) Haughton impact crater (2) Chiemgau impact crater strewn field. Source: Michael A. Rappenglück, based on Google My Maps.

A comprehensive relation of iron silicides in craters in an extensive strewn field may be undertaken using material from the Chiemgau Impact site. The crater strewn field of the “Chiemgau impact” is evidence of a large meteorite impact that occurred in prehistoric times in the foothills of the Bavarian Alps [404–406]. The area extends roughly elliptically over an area of about 60 km × 30 km (c. 1800 km2 , 47.8◦–48.4◦ N, 12.3◦–13.0◦ E) between Altötting, Lake Chiemsee and the Alps, Bavaria, Germany. Nearly 80 craters have been documented. The impactor that caused the event is likely to have been a relatively porous object consisting of various components that broke apart in the atmosphere. The analysis of the composition of an impact rock showing the shock metamorphoses typical for an impact and, at the same time, fusing with the metallic components (high lead bronze and iron) of artefacts from the archaeological layer, makes it possible to date the Chiemgau impact to ca. 900–600 BC [407,408]. The published research results evidence an impact event based on the relevant criteria and methodology required in the scientific community. However, the relationship of the geological and archaeological structures and material findings to an impact event has been questioned [409–413] and debated [404,408,414–422].

In the crater strewn field, a total of 2–3 kg of particles, hardly corroded or not corroded at all and showing a metallic sheen, were found distributed over hundreds of square kilometres. They were often are shaped in aerodynamic forms such as ellipsoids, spheres, buttons and drops, but also as splinters and pieces (from 1 mm up to 6 cm and 167 g), or even an 8 kg lump in the subsoil down to the substratum (≈ 30–40 cm) in a glacially formed layer [404,405]. A smoothed convex face and a flat irregularly shaped reverse were frequently observed. The material is tough and magnetic [414,423]. Some specimens show a remaglyptic surface. There is also accretionary lapilli with magnetic xifengite cores. Iron silicide splinters also occurred in foamy-porous carbonate matrices, presumably recrystallised carbonate melt. Big sparkling crystals (moissanite) protruding from the metallic matrix are visible to the naked eye. Fersilicite/naquite (FeSi), ferdisilicite/linzhiite (FeSi2), hapkeite (Fe2Si) as cubic (hapkeite-1C) and trigonal (hapkeite-1T), gupeiite (Fe3Si), suessite (Fe,Ni)3Si, xifengite (Fe5Si3), and in traces suessite (Fe,Ni)3Si were detected [404,424–427]. FexSiy appeared as irregular, round blebs (5–40 µm) and pyramid-shaped formations (≈600 µm) in the microstructure. The intergrown iron silicides formed a matrix for various mineral inclusions. Among them were cubic moissanite ([β]3C-SiC) and titanium carbide (TiC) crystals (≈ 40 µm × 80 µm) of extreme purity, as well as TiC0.63. Khamrabaevite ((Ti,V,Fe)C) was frequently present. There was zirconium carbide (ZrC), possibly baddeleyite (ZrO2) and uranium carbide (UC). Zircon Zr[SiO4] crystals (3–10 µm) and uranium (U) as caps were recognisable. Sometimes, SiC appeared peppered with U blobs. Moreover, calcium-aluminium-rich matter, like the calcium aluminate/krotite (CaAl2O4) and dicalcium dialuminate (Ca2Al2O5) [426], was identified in the material. There were also graphite and nanodiamonds (C). Ni (≈ 0.8 wt%) was present in the suessite (Fe,N)3Si. The amount of Cr was ≈ 0.5 wt%. In addition to the main component, i.e., FexSiy, more than 40 other chemical elements, including uranium and REE (e.g., Y, Ce, La, Pr, Nd, Gd, Yb) have been detected so far. In one sample Th was marginally detectable, and in another, a trace of Po was found. Lead was completely absent. Previous individual findings of a different nature could not be confirmed [409,410]. Although uranium was present in spectra in clear quantities, there was no evidence of daughter nuclides, grandchild nuclides, etc. The microstructure of the material showed clear signs of very intense mechanical overload, which, in principle, could have been caused by high shock effects (pressure, dynamic spallation, and thermal). This caused deformation lamellae and various crack features, e.g., tensile open fractures and groups of subparallel open fissures in FexSiy, TiC crystal, and multiple sets of planar features (PF), kink bands, planar deformation features (PDF) in SiC crystal. The FexSiy matrix was littered with rimmed microcraters (10–20 µm), sometimes showing “ring walls”, probably from the impacts of microparticles. The fersilicites regularly occurred near rimmed nanometre craters. Detailed images showed that zircon crystals struck the plastically deformed or even liquefied matrix of iron silicides. Minerals 2022, 12, 188 27 of 49 It is assumed that disturbance waves ran through the material and suddenly stopped, so that the matrix froze.

The mixture of minerals in the iron silicide matrix was unusual; they were distributed in it with low/high pressure and/or low/high temperature. There was monoclinic high temperature (>1773 K), low-pressure dimorph of CaAl2O4 [419,426], known as krotite. As a natural mineral, it has been identified in meteorites NWA 1934 [428] and in the basic/ultrabasic basaltic volcano complex of Mt. Carmel (Rakefet magmatic complex, Mount Carmel, Haifa District, Israel, 32◦4305900 N, 35◦2 05900 E; see above), dated to the Late Cretaceous (96.7 ± 0.5 Ma) and assigned to kimberlites [429]. At the latter site, orthorhombic dicalcium dialuminate (Ca2Al2O5), was found, i.e., unnamed UM1977-08-O:AlCaH [430], a high-pressure phase (>2.5 GPa) [431] with the brownmillerite-type structure. This was also identified in the iron silicide matrix of the Chiemgau impact [419,426]. That phase can also be produced at ambient pressure but under quite high temperatures [431]. Moreover, in the large area of the Hatrurim Formation (Israel, 31◦ N, 35◦ E), where the rocks, consisting of chalk, limestones, marl, enriched with bituminous compounds, have been intensely heated and metamorphosed, Ca2Al2O5 was also detected [432,433]. The chronology there is Late Cretaceous/Early Eocene (66.0–47.8 mya). Ca2Al2O5 was also detected in the xenoliths of the Ettringer Bellerberg volcanic system (Ettringen, Mayen-Koblenz, Rhineland-Palatinate, Germany, 50◦2100.8800 N, 7◦13041.6500 E), dated c. 0.215 ± 0.004 to 0.190 ± 0.004 mya [434]. In addition, the iron silicide suessite (Fe,Ni)3Si formed from the matrix at more than 2000 K, and cubic moissanite ([β]3C-SiC) as well as nanodiamonds indicated high shock pressure [243]. Xifengite (Fe5Si3) and carbon spherules within amorphous carbon were found in the glazed enamel skin of a pebble from crater #004 in the field. High temperatures (thermal shock), >1773 K and pressures, as well as a magnetic anomaly, have been documented for the rocks in that crater [417,435]. Finally, an iron silicide lump (c. 16 cm × 11 cm × 5 cm, 8 kg), found approximately 30 years ago near Grabenstätt at Lake Chiemsee, is reported to contain cubic hapkeite (Fe2Si, cubic and trigonal polymorph), gupeiite (Fe3Si), xifengite (Fe5Si3), titanium carbide (TiC)/khamrabaevite ((Ti,V,Fe)C), moissanite (cubic SiC), zirconium carbide (ZrC), graphite and graphene [424,426]. When writing this review, the block is the largest known example containing natural cubic and trigonal Fe2Si.

Collectively, the iron silicides hapkeite (Fe2Si), suessite (Fe,Ni)3Si) and xifengite (Fe5Si3) in the matrix, the mixture of mineral inclusions, which prove the effects of high but also low temperatures and pressures, the large-scale distribution, the association with craters in a strewn field, the finds in proven old layers of the Middle Ages from below a medieval hoard of coins and a castle, in peat mires and on the heights (>1000 m) of the neighbouring Alps exclude an anthropogenic-industrial origin (including bombing) [410] of these materials [404,405,414,435]. A geogenic source is also not plausible [414,435]. A primary extraterrestrial, including perhaps already a mixture in space or a secondary terrestrial (ejecta) source, is suggested [404–406]. The high degree of similarity among the finds from the Chiemgau impact with those from the Alatau and Kalu ranges (Southern Urals, Ishimbayskiy rayon, Republic of Bashkortostan, Russia Ural, Russia) and Laurel Hills, Holmdel (New Jersey, USA) is striking (see above). The findings on the association of uranium and fersilicites, moissanite, titanium carbide, graphite, and the special khamrabaevite are particularly significant. Thus, the iron silicides of the Chiemgau impact can, in principle, also be classified as (distal) impact ejecta. However, in contrast to, and as an extension of, the Alatau and Kalu as well as the Laurel Hills findings, there is a vast crater-strewn field which is genetically associated with the iron silicides, and within the iron silicide matrix are rare krotite (CaAl2O4) and dicalcium dialuminate (Ca2Al2O5). Although FexSiy can be anthropogenic in origin, it is usually not comparable to the iron silicides and associated material found in the Chiemgau strewn field. Given that the known occurrences of FexSiy include several examples of extraterrestrial origin, such an origin is plausible unless a separate, nonimpact origin for FexSiy can be clearly demonstrated.

An additional, still unknown process or a mixture with the extraterrestrial material of the impactor is assumed here.

New contributions Chiemgau meteorite impact

Yushkin Readings 2020 Syktyvkar (Russia)

Four new Proceedings contributions – three of them directly related to the Chiemgau impact.

The May conference “Yushkin Readings 2020 – Modern Problems of Theoretical, Experimental, and Applied Mineralogy” has been postponed for the time being to 7-10 December 2020 due to the pandemic. In anticipation of this, the 407-page conference proceedings of all papers accepted for presentation have now been printed and published on the Internet. The four papers submitted by the CIRT together with co-authors from ZEISS (Dr. Hiltl), Oxford Instruments (Dr. Bauer) and the Russian Academy of Sciences (Dr. Shumilova) are included.

Here the contributions are provided as a closed sequence in a PDF document for download.

Titles and authors:

An eight kilogram chunk and more: evidence for a new class of iron silicide meteorites from the Chiemgau impact strewn field (SE Germany)  F. Bauer, M. Hiltl, M. A. Rappenglück, K. Ernstson

Evidence of meteorite impact-induced thermal shock in quartz  K. Ernstson

Chiemite — a high PT carbon impactite from shock coalification/carbonization of impact target vegetation  K. Ernstson, T. G. Shumilova

Artifact-in-impactite: a new kind of impact rock. Evidence from the Chiemgau meteorite impact in southeast Germany  B. Rappenglück, M. Hiltl, K. Ernstson

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11th Planetary Crater Consortium Meeting

11th Planetary Crater Consortium 2020 (LPI Contrib. No. 2251)

Abstract 2019.pdf

DIGITAL TERRAIN MODEL (DTM) TOPOGRAPHY OF SMALL CRATERS IN THE HOLOCENE CHIEMGAU (GERMANY) METEORITE IMPACT STREWN FIELD.
K. Ernstson and J. Poßekel

The Digital Terrain Model (DTM) of craters in the Chiemgau meteorite impact strewn field with extreme topographic resolution excludes anthropogenic and glacial origin in principle and provides insight into unusual formation processes.

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11th Planetary Crater Consortium 2020 (LPI Contrib. No. 2251)

Abstract 2040.pdf

NOT JUST A RIMMED BOWL: GROUND PENETRATING RADAR (GPR) IMAGERY OF SMALL CRATERS IN THE HOLOCENE CHIEMGAU (GERMANY) METEORITE IMPACT STREWN FIELD.
J. Poßekel and K. Ernstson

High resolution ground penetrating radar (GPR) measurements over craters of the Holocene Chiemgau impact meteorite crater strewn field reveal instructive images of complex structures and chronological sequences during excavation.

LPSC 2020 – Poster and Abstract: Chiemgau impact – interesting news

Although the 51st Lunar & Planetary Science Conference (LPSC)  has been cancelled for this year because of the virus, accepted contributions (abstracts and posters) will be treated as usual as registered, citable publications with archiving at LPI and NASA.

Poster Chiemgau Impact LPSC 2020 Impact airburst

This year there is an interesting CIRT contribution on new findings related to the Chiemgau impact event.

NEAR-GROUND AIRBURST CRATERING: PETROGRAPHIC AND GROUND PENETRATING RADAR (GPR) EVIDENCE FOR A POSSIBLY ENLARGED CHIEMGAU IMPACT EVENT (BAVARIA, SE-GERMANY).

Kord Ernstson , Jens Poßekel , Michael A. Rappenglück

Poster (in high pdf resolution) and abstract can be downloaded here.

Abstract

Poster

 

Chiemite: coke of the last few doubters at the Chiemgau impact

  chiemite = "coke" of Robert Huber and Robert DargaSEM image of chiemite, the “coke” of Robert Darga and Robert Huber, containing diamond and carbines.

At this year’s meeting of the European Geosciences Union (EGU) in Vienna in April, Dr. Robert Huber (marine geologist at Marum, Center for Marine Environmental Sciences, University of Bremen) and Dr. Robert Darga (ice age geologist, director of the Mammut Museum in Siegsdorf, Chiemgau, Oberbayern) once again took an all-out blow against the Chiemgau impact, which is now generally recognized (despite all the Wikipedia twists and manipulations).
Obviously they succeeded in persuading some other scientists to present a joint poster, on which their crude ideas were presented: “If You Wish Upon A Star. Chiemite: An Anthropocene Pseudo-Impactite”  The three coauthors of the poster are from Australia (Mineral Resources, CSIRO, Federal Agency for the improvement of the economic and social performance of industry).

We leave it at the short note that the chiemite, which is described in international, renowned peer-reviewed publication organs as high pressure/high temperature impactite with the contents of diamond and carbines (T = 2500 – 4000 K, P = several GPa), is of terrestrial origin and has originated from a spontaneous shock carbonization of the vegetation (wood, peat) of the Chiemgau impact area. The published methods of the chiemite investigation were: optical and atomic force microscopy, X‐ray fluorescence spectroscopy, scanning and transmission electron microscopy, high‐resolution Raman spectroscopy, X‐ray diffraction and differential thermal analysis, as well as by δ13C and 14C radiocarbon isotopic data analysis.

Scientifically the poster presentation of these impact critics, in which not a single reference is brought to the Chiemgau impact and not a single reference to the chiemite (see e.g. Chiemgau impact: new comprehensive article on the chiemite impactite, Shumilova, T.G. et al. (2018)) is absolutely worthless, far from any scientific seriousness, and should cause mockery at most in a respectable science scene. One wonders why such a pamphlet could be shown at all on the conference.

Chiemgau impact: LPSC 2019 poster already online

Trigonal and cubic Fe2Si polymorphs (hapkeite) in the eight kilograms find of natural iron silicide from Grabenstätt (Chiemgau, Southeast Germany

Frank Bauer, Michael Hiltl, Michael A. Rappenglück, Kord Ernstson

LPSC 2019 eight kilogram iron silicide hapkeite Chiemgau Impact

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Metallic Artifact Remnants in a Shock-Metamorphosed Impact Breccia: an Extended View of the Archeological Excavation at Stöttham (Chiemgau, SE-Germany)

Barbara Rappenglück, Michael Hiltl, Kord Ernstson

Stöttham archeological site Chiemgau impact Stöttham archeological site Chiemgau impact EBSD Stöttham archeological site Chiemgau impact shocked suevite

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Anatomy of Young Meteorite Craters in a Soft Target (Chiemgau Impact Strewn Field, SE Germany) from Ground Penetrating Radar (GPR) Measurements

Jens Poßekel, Kord Ernstson

GPR measurements craters Chiemgau impact Eglsee impact crater Chiemgau impact Digital Terrain Model

Chiemgau impact: new comprehensive article on the chiemite impactite

Keywords astrobiology  diamond  carbyne  coalification  carbonization  meteorite impact  chiemite

Abstract
Unusual carbonaceous matter, termed here chiemite, composed of more than 90% C from the Alpine Foreland at Lake Chiemsee in Bavaria, southeastern Germany has been investigated using optical and atomic force microscopy, X‐ray fluorescence spectroscopy, scanning and transmission electron microscopy, high‐resolution Raman spectroscopy, X‐ray diffraction and differential thermal analysis, as well as by δ13C and 14C radiocarbon isotopic data analysis. In the pumice‐like fragments, poorly ordered carbon matter co‐exists with high‐ordering monocrystalline α‐carbyne, and contains submicrometer‐sized inclusions of complex composition. Diamond and carbyne add to the peculiar mix of matter. The required very high temperatures and pressures for carbyne formation point to a shock event probably from the recently proposed Holocene Chiemgau meteorite impact. The carbon material is suggested to have largely formed from heavily shocked coal, vegetation like wood, and peat from the impact target area. The carbonization/coalification high PT process may be attributed to a strong shock that instantaneously caused the complete evaporation and loss of volatile matter and water, which nevertheless preserved the original cellular structure seen fossilized in many fragments. Relatively fresh wood encapsulated in the purported strongly shocked matter point to quenched carbon melt components possibly important for the discussion of survival of organic matter in meteorite impacts, implying an astrobiological relationship.

The Chiemgau impact – don’t believe in Wikipedia!

The Chiemgau impact – don’t believe in Wikipedia!

The Wikipedia page “Chiemgau impact hypothesis” is still manipulating science and defaming scientific research for the worst, when the visitor reads in a few sentences that the impact hypothesis is obsolete.

For some years now we have been trying to protest against this misleading of Wikipedia readers and the scientific community – in vain. Corrections we made with a host of documented quotations were deleted at once – apparently with the tolerance or even the forcing of the administrator. The initiators of this manipulation, partly close to an insult, are largely known to us as totally unrelated to the scientific research subject, which does not change the situation.

For Wikipedia, this is not a glorious fact; the claim to encyclopedic honesty and correctness is not fulfilled in this case.

Comprehensive and consistent information:

The visitor and reader of this website is requested to use honest, scientifically correct and according to strict scientific rules oriented information of this website about the Chiemgau impact.. A compilation of the scientific findings, published internationally at renowned congresses and in peer-review journals, proves the existence of what is probably the largest terrestrial meteorite crater strewn field, which is also widely accepted internationally.

Papers on the Chiemgau impact research in international journals and as contributions to international conferences

Rappenglück, M.A., Rappenglück, B., Ernstson, K. (2018):Cosmic collision in prehistory. The Chiemgau Impact: research in a Bavarian meteorite crater strewn field.- Zeitschrift für Anomalistik, 17 (2017), S. 235–260 (in German). Abstract

Ernstson, K. & Poßekel, J. (2017): Meteorite Impact “Earthquake” Features (Rock Liquefaction, Surface Wave Deformations, Seismites) from Ground Penetrating Radar (GPR) and Geoelectric Complex Resistivity/Induced Polarization (IP) Measurements, Chiemgau (Alpine Foreland, Southeast Germany). AGU Fall Meeting, 11-15 Dec. 2017 New Orleans. Abstract Poster

Procházka V. Trojek T. (2017): XRF- and EMP- Investigation of Glass Coatings and Melted Domains of Pebbles from Craters in Chiemgau, Germany. Lunar an Planetary Science Conference XLVIII. Abstract #2401.pdf.

Ernstson, K. (2016): EVIDENCE OF A METEORITE IMPACT-INDUCED TSUNAMI IN LAKE CHIEMSEE (SOUTHEAST GERMANY) STRENGTHENED.EVIDENCE OF A METEORITE IMPACT-INDUCED TSUNAMI IN LAKE CHIEMSEE (SOUTHEAST GERMANY) STRENGTHENED.. 47th Lunar and Planetary Science Conference, 1263.pdf.

V. Procházka, G. Kletetschka (2016): Evidence for superaparamagnetic nanoparticles in limestones from Chiemgau crater field, SE Germany. 47th Lunar and Planetary Science Conference, 2763.pdf

M. A. Rappenglück, F. Bauer, K. Ernstson, M. Hiltl (2014): Meteorite impact on a micrometer scale: iron silicide, carbide and CAI minerals from the Chiemgau impact event (Germany). – Problems and perspectives of modern mineralogy (Yushkin Memorial Seminar–2014) Proceedings of mineralogical seminar, Syktyvkar, Komi Republic, Russia 19–22 May 2014. Abstract POSTER

Ernstson, K., Hilt, M., Neumair, A. (2014): Microtektite-Like Glasses from the Northern Calcareous Alps (Southeast Germany): Evidence of a Proximal Impact Ejecta . – 45th Lunar and Planetary Science Conference,. LPI Contribution No. 1777, #1200.pdf.

Rappenglück, M.A., Bauer, F. Hiltl, M., Neumair, A., K. Ernstson, K. (2013): Calcium-Aluminium-rich Inclusions (CAIs) in iron silicide matter (Xifengite, Gupeiite, Hapkeite): evidence of a cosmic origin – 76th Annual Meteoritical Society Meeting, Meteoritics & Planetary Science, Volume 48, Issue s1, Abstract #5055. POSTER

Bauer, F. Hiltl, M., Rappenglück, M.A., Neumair, A., K. Ernstson, K. (2013): Fe2Si (Hapkeite) from the subsoil in the alpine foreland (Southeast Germany): is it associated with an impact? – 76th Annual Meteoritical Society Meeting, Meteoritics & Planetary Science, Volume 48, Issue s1, Abstract #5056. POSTER

Neumair, A., Ernstson, K. (2013): Peculiar Holocene soil layers: evidence of possible distal ejecta deposits in the Chiemgau region, Southeast Germany – 76th Annual Meteoritical Society Meeting, Meteoritics & Planetary Science, Volume 48, Issue s1, Abstract  #5057. POSTER

Ernstson, K., Müller, W., Neumair, A. (2013): The proposed Nalbach (Saarland, Germany) impact site: is it a companion to the Chiemgau (Southeast Bavaria, Germany) impact strewn field? – 76th Annual Meteoritical Society Meeting, Meteoritics & Planetary Science, Volume 48, Issue s1, POSTER  Abstract #5058.

K. Ernstson, T. G. Shumilova, S. I. Isaenko, A. Neumair, M. A. Rappenglück (2013): From biomass to glassy carbon and carbynes: evidence of possible meteorite impact shock coalification and carbonization. – Modern problems of theoretical, experimental and applied mineralogy (Yushkin Memorial Seminar–2013): Proceedings of mineralogical seminar, Syktyvkar: IG Komi SC UB RAS, 2013. 546 p POSTER

S. Isaenko, T. Shumilova, K. Ernstson, S. Shevchuk, A. Neumair, and M. Rappenglück (2012): Carbynes and DLC in naturally occurring carbon matter from the Alpine Foreland, South-East Germany: Evidence of a probable new impactite. – European Mineralogical Conference, Vol. 1, EMC2012-217, 2012., POSTER

B. RAPPENGLÜCK, K. ERNSTSON, I. LIRITZIS, W. MAYER, A. NEUMAIR, M. RAPPENGLÜCK and D. SUDHAUS (2012): A prehistoric meteorite impact in Southeast Bavaria (Germany): tracing its cultural implications. – 34th International Geological Congress, 5-10 August 2012 – Brisbane, Australien. Abstract

Shumilova, T. G.,  Isaenko S. I.,   Makeev B. A.,   Ernstson K.,   Neumair A.,  Rappenglück M. A. (2012): Enigmatic Poorly Structured Carbon Substances from the Alpine Foreland, Southeast Germany:  Evidence of a Cosmic Relation. 43nd Lunar and Planetary Science Conference, 1430.pdf. Abstract.

Ernstson, K. & Neumair, A. (2011), Geoelectric Complex Resistivity Measurements of Soil Liquefaction Features in Quaternary Sediments of the Alpine Foreland, Germany, Abstract NS23A-1555 presented at 2011 Fall Meeting, AGU, San Francisco, Calif., 5-9 Dec. POSTER  Abstract

Neumair, A. & Ernstson, K. (2011), Geomagnetic and morphological signature of small crateriform structures in the Alpine Foreland, Southeast Germany, Abstract GP11A-1023 presented at 2011 Fall Meeting, AGU, San Francisco, Calif., 5-9 Dec. POSTER  Abstract

M. Hiltl, F. Bauer, K. Ernstson, W. Mayer, A. Neumair, and M.A. Rappenglück (2011): SEM and TEM analyses of minerals xifengite, gupeiite, Fe2Si (hapkeite?), titanium carbide (TiC) and cubic moissanite (SiC) from the subsoil in the Alpine Foreland: Are they cosmochemical? – 42nd Lunar and Planetary Science Conference (2011), 1391.pdf Abstract

K. Ernstson, C. Sideris, I. Liritzis, A. Neumair (2012): THE CHIEMGAU METEORITE IMPACT SIGNATURE OF THE STÖTTHAM ARCHAEOLOGICAL SITE (SOUTHEAST GERMANY). – Mediterranean Archaeology ans Archäometry, 12, 249-259.

Ernstson, K., Mayer W., Neumair, A., and Sudhaus, D. (2011): The sinkhole enigma in the alpine foreland, Southeast Germany: Evidence of impact-induced rock liquefaction processes. – Cent. Eur. J. Geosci., 3(4), 385-397.  DOI: 10.2478/s13533-011-0038-y

Liritzis, N. Zacharias, G.S. Polymeris, G. Kitis, K. Ernstson, D. Sudhaus, A. Neumair, W. Mayer, M.A. Rappenglück, B. Rappenglück (2010): THE CHIEMGAU METEORITE IMPACT AND TSUNAMI EVENT (SOUTHEAST GERMANY): FIRST OSL DATING. – Mediterranean Archaeology and Archaeometry, Vol. 10, No. 4, pp. 17‐33.

Barbara Rappenglück, Michael A. Rappenglück, Kord Ernstson, Werner Mayer, Andreas Neumair, Dirk Sudhaus & Ioannis Liritzis (2010): The fall of Phaethon: a Greco-Roman geomyth preserves the memory of a meteorite impact in Bavaria (south-east Germany). – Antiquity, 84, 428-439.

Ernstson, K., Mayer, W., Neumair, A., Rappenglück, B., Rappenglück, M.A., Sudhaus, D. and Zeller, K.W. (2010): The Chiemgau crater strewn field: evidence of a Holocene large impact in southeast Bavaria, Germany. – Journal of Siberian Federal University, Engineering & Technology, 1 (2010 3) 72-103.

Rappenglück, B., Ernstson, K., Mayer, W., Neumair, A. Rappenglück, M.A., Sudhaus, D., and Zeller, K.W. (2009):: The Chiemgau impact: An extraordinary case study for the question of Holocene meteorite impacts and their cultural implications. – In: Belmonte, J. A. (ed.), Proceedings of the International Conference on Archaeoastronomy, SEAC 16th 2008 “Cosmology across Cultures. Impact of the Study of the Universe in Human Thinking”, Granada September 8-12, 2008, A.S.P. Conf. Ser., 2009.

Barbara and Michael Rappenglück (2006): Does the myth of Phaethon reflect an impact? – Revising the fall of Phaethon and considering a possible relation to the Chiemgau Impact. – Mediterranean Archaeology and Archaeometry, Proceedings of the International Conference on Archaeoastronomy, SEAC 14th 2006, „Ancient watching of cosmic space and observation of astronomical phenomena“, Vol. 6, No. 3 (2006), 101-109.

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