The Renchen L5-6 chondrite breccia – The first confirmed meteorite fall from Baden-Württemberg
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F19%3APU133029" target="_blank" >RIV/00216305:26620/19:PU133029 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0009281919300133" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0009281919300133</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.chemer.2019.07.007" target="_blank" >10.1016/j.chemer.2019.07.007</a>
Alternative languages
Result language
angličtina
Original language name
The Renchen L5-6 chondrite breccia – The first confirmed meteorite fall from Baden-Württemberg
Original language description
On July 10, 2018 at 21:29 UT extended areas of South-Western Germany were illuminated by a very bright bolide. This fireball was recorded by instruments of the European Fireball Network (EN). The records enabled complex and precise description of this event including the prediction of the impact area. So far six meteorites totaling about 1.23 kg have been found in the predicted location for a given mass during dedicated searches. The first piece of about 12 g was recovered on July 24 close to the village of Renchen (Baden-Württemberg) followed by the largest fragment of 955 g on July 31 about five km north-west of Renchen. Renchen is a moderately-shocked (S4) breccia consisting of abundant highly recrystallized rock fragments as well as impact melt rock clasts. The texture, the large grain size of plagioclase, and the homogeneous compositions of olivine (∼Fa26) and pyroxene (∼Fs22) clearly indicate that Renchen is composed of metamorphosed rock fragments (L5–6). An L-group (and ordinary chondrite) heritage is consistent with the data on the model abundance of metal, the density, the magnetic susceptibility as well as on O-, Ti-, and Cr-isotope characteristics. Renchen does not contain solar wind implanted noble gases and is a fragmental breccia. An unusually large mmsized merrillite-apatite aggregate shows trace element characteristics like other phosphates from ordinary chondrites. Data on the bulk chemistry, IR-spectroscopy, cosmogenic nuclides, and organic components also indicate similarities to other metamorphosed L chondrites. Noble gas studies reveal that the meteorite has a cosmic ray exposure (CRE) age of 42 Ma and that most of the cosmogenic gases were produced in a meteoroid with a radius of at max. 20 cm based on the radionuclide 26Al and 10–150 cm based on cosmogenic 22Ne/21Ne. K-Ar and U/Th-He gas retention ages are both in the range ∼3.0–3.2 Ga. Both systems do not show evidence for a complete reset 470 Ma ago, and may instead have recorded the same r
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10506 - Paleontology
Result continuities
Project
<a href="/en/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
CHEMIE DER ERDE-GEOCHEMISTRY
ISSN
0009-2819
e-ISSN
1611-5864
Volume of the periodical
79
Issue of the periodical within the volume
4
Country of publishing house
DE - GERMANY
Number of pages
19
Pages from-to
125525-125525
UT code for WoS article
000500465000020
EID of the result in the Scopus database
2-s2.0-85070695710