A5071464129- Astro and Planetary Science
- Planetary Science and Exploration
- High-pressure geophysics and materials
- Geological and Geochemical Analysis
- Isotope Analysis in Ecology
- Stellar, planetary, and galactic studies
- Astronomical and nuclear sciences
- Astrophysics and Star Formation Studies
- Geology and Paleoclimatology Research
- Nuclear Physics and Applications
- earthquake and tectonic studies
- Marine and environmental studies
- BIM and Construction Integration
- Energetic Materials and Combustion
- Archaeological and Geological Studies
- Metaheuristic Optimization Algorithms Research
- Astrophysics and Cosmic Phenomena
- Thermal and Kinetic Analysis
- Spacecraft and Cryogenic Technologies
- Cassava research and cyanide
- Geochemistry and Elemental Analysis
- Neural Networks and Applications
- Evolutionary Algorithms and Applications
- Nonlinear Optical Materials Research
- Medical Imaging Techniques and Applications
University of Münster
2016-2024
University of Hawaiʻi at Mānoa
2020
North Carolina State University
2018
Abstract CM chondrites are complex impact (mostly regolith) breccias, in which lithic clasts show various degrees of aqueous alteration. Here, we investigated the degree alteration individual within 19 different and CM‐like three achondrites by chemical analysis tochilinite‐cronstedtite‐intergrowths (TCIs; formerly named “poorly characterized phases”). To identify TCIs chondritic lithologies, used backscattered electron (BSE) overview images polished thin sections, after appropriate samples...
Abstract On October 7, 2008, the asteroid 2008 TC 3 exploded as it entered Earth’s atmosphere, producing significant dust (in atmosphere) and delivering thousands of stones in a strewn field Sudan, collectively known Almahata Sitta (AhS) stones. About 600 fragments were officially recovered 2009. Further rocks collected since fall event by local people. From these stones, 249 classified at Institut für Planetologie Münster (MS) MS‐xxx or MS‐MU‐xxx AhS subsamples. Most are ureilitic origin...
Abstract Calcium, aluminum-rich inclusions (CAIs) are the oldest solids dated that formed in solar system. Most CAIs unmetamorphosed chondritic meteorites (chondrites; petrologic type ≤3.0) have uniform solar-like 16 O-rich compositions (Δ 17 O ∼ −24‰) and a high initial 26 Al/ 27 Al ratio [( Al) 0 ] of ∼(4–5) × 10 −5 , consistent with their origin gas approximately composition during brief (<0.3 Ma) epoch at earliest stage our The nature O-isotope heterogeneity range from ∼−24 up to...
Abstract On March 6, 2016 at 21:36:51 UT , extended areas of Upper Austria, Bavaria (Germany) and the southwestern part Czech Republic were illuminated by a very bright bolide. This bolide was recorded instruments in European Fireball Network it enabled complex precise description this event including prediction impact area. So far six meteorites totaling 1473 g have been found predicted The first pieces recovered on 12, field close to village Stubenberg (Bavaria). is weakly shocked (S3)...
The main mineralogical characteristics of a large light-colored clast within the Murchison CM breccia are discussed in detail including data on mineralogy, bulk chemistry, organics, and oxygen isotopes. Petrographic study shows that white consists two areas with different granoblastic textures: (1) coarse-grained (average grain size: ∼200 μm) (2) fine-grained lithology grain-size: ∼20 μm). Fa-content olivine is same as Fa from Rumuruti (R) chondrites (Fa: ∼38 mol%); however, concentrations...
Abstract Based on the high abundance of fine‐grained material and its dark appearance, NWA 11024 was recognized as a CM chondrite, which is also confirmed by oxygen isotope measurements. But contrary to known chondrites, typical phases indicating aqueous alteration (e.g., phyllosilicates, carbonates) are missing. Using multiple analytical techniques, this study reveals differences similarities chondrites will discuss possibility that first type 3 chondrite. During investigation, two...
Abstract One approach to decipher the dynamics of material transport and planetary accretion in early solar system is investigate xenolithic fragments meteorites. In this work, we examined an igneous fragment from NWA 12651 meteorite—the first found any CM chondrite—by analyzing its mineralogy, rare earth elements (REEs), O‐isotopes. The study shows that exsolution lamellae consist Fe‐rich Ca‐rich pyroxene. Thus, was part a progressive crystallization closed system, such as depleted magma...
Abstract MS‐MU‐012, a 15.5 g clast from the Almahata Sitta polymict ureilite, is first known plagioclase‐bearing main group ureilite. It coarse‐grained (up to 4 mm), equilibrated assemblage of 52% olivine (Fo 88), 13% orthopyroxene (Mg# 89.2, Wo 4.5), 11% augite 90.2, 37.3), and 14% plagioclase (An 68), plus minor metal sulfide. The grains have been secondarily remelted internally recrystallized, but retain primary external morphologies. Melt inclusions occur in olivine. Rounded chadocrysts...
Abstract On July 15, 2021, a huge fireball was visible over Poland. After the possible strewn field calculated, first and so far only sample, with mass of 350 g, discovered 18 days after event. The Antonin meteorite found August 3, on edge forest close to dirt road near Helenow, small suburb city Mikstat. rock is an ordinary chondrite breccia consists equilibrated recrystallized lithologies. boundaries between different fragments are difficult detect, lithologies petrologic type 5 4....
Abstract The early solar system was a dynamic period during which the formation of solids set into motion process planet building. Although both astrophysical observations and theoretical modeling demonstrate presence widespread transport material, we lack concrete quantitative constraints on timings, distances, mechanisms thereof. To trace these processes, one needs objects known times would need to be distributed throughout parent bodies with accretion distances. Generally, criteria are...