Results 1 to 10 of about 19,575 (244)

Polycyclic aromatics in the Chang’E 5 lunar soils [PDF]

Nature Communications
Polycyclic aromatics are ubiquitous in the interstellar medium and meteorites, yet the search for lunar polycyclic aromatics remains a significant challenge. Here, we analyze Chang’E-5 lunar soil samples, revealing polycyclic aromatic concentrations of 5.
Guangcai Zhong, Xin Yi, Shutao Gao, Shizhen Zhao, Yangzhi Mo, Lele Tian, Buqing Xu, Fu Wang, Yuhong Liao, Tengfei Li, Liangliang Wu, Yunpeng Wang, Yingjun Chen, Yue Xu, Sanyuan Zhu, Linbo Yu, Jun Li, Ping’an Peng, Gan Zhang   +18 more
doaj   +2 more sources

Kivesvaara C2 chondrite: silicate petrography and chemical composition [PDF]

Bulletin of the Geological Society of Finland, 1983
Fragments of the Kivesvaara meteorite were said to have been found in Paltamo, northern Finland in 1968. The chemical and mineral composition and the textural features show that this meteorite is a rare C2 carbonaceous chondrite.
K.A. Kinnunen, R. Saikkonen
doaj   +1 more source

Ore Petrography, Mineralogical and Chemical Composition of New Iron Meteorite (Al-Sherqat Meteorite) from Iraq

Iraqi Geological Journal, 2021
The meteorite with a single total mass of 630 gm as a visible meteorite has fallen on 22 March 2021, at 10:00 a.m. in Al-Sherqat subdistrict within Salah Al-Din, northern Iraq; and therefore, was named Al-Sherqat meteorite by the authors.
Salih Awadh
doaj   +1 more source

Quantitative Analysis of Meteorite Elements Based on the Multidimensional Scaling–Back Propagation Neural Network Algorithm Combined with Raman Mapping-Assisted Micro-Laser Induced Breakdown Spectroscopy

Chemosensors, 2023
Meteorites are an essential reference for human exploration of the universe and its cosmic evolution and an essential research object for searching for extraterrestrial life. Ways to quickly identify and screen suspected meteorite samples have become the
Hongpeng Wang, Yingjian Xin, Peipei Fang, Yian Wang, Mingkang Duan, Wenming Wu, Ruidong Yang, Sicong Liu, Liang Zhang, Xiong Wan   +9 more
doaj   +1 more source

Structure of the chondrules and the chemical composition of olivine in meteorite Jesenice

Geologija, 2013
This paper presents a mineralogical analysis of various chondrule types and chemical analysis of olivine indifferent parts of meteorite Jesenice. Quantitative energy-dispersive X-ray spectroscopy with a scanning electronmicroscope was used in the ...
Bojan Ambrožič, Sašo Šturm, Miha Jeršek, Breda Mirtič   +3 more
doaj   +1 more source

Outgassing Composition of the Murchison Meteorite: Implications for Volatile Depletion of Planetesimals and Interior-atmosphere Connections for Terrestrial Exoplanets

The Planetary Science Journal, 2023
Outgassing is a central process during the formation and evolution of terrestrial planets and their atmospheres both within and beyond the solar system.
Maggie A. Thompson, Myriam Telus, Graham Harper Edwards, Laura Schaefer, Jasmeet Dhaliwal, Brian Dreyer, Jonathan J. Fortney, Kyle Kim   +7 more
doaj   +1 more source

Determining the mechanical parameters of asteroid rocks using NWA13618 meteorites and microscale rock mechanics experiment

Rock and Soil Mechanics, 2022
In the future, the extraterrestrial human activities, such as resources exploitation and base construction beyond the Earth need the aid of geotechnical engineering technology.
TANG Xu-hai, XU Jing-jing, ZHANG Yi-heng, HE Qi, WANG Zheng-zhi, ZHANG Guo-ping, LIU Quan-sheng   +6 more
doaj   +1 more source

Combustion Analysis of a Meteorite Debris [PDF]

, 2010
In this research paper, nature and origins of a meteorite debris identified near village Lehri in district Jhelum, Pakistan have been determined. Total carbon content of a specimen of the meteorite debris is determined using combustion analysis and this ...
Saheeb Ahmed Kayani
core   +3 more sources

Potassium isotopic compositions of enstatite meteorites

Meteoritics & Planetary Science, 2019
AbstractEnstatite chondrites and aubrites are meteorites that show the closest similarities to the Earth in many isotope systems that undergo mass‐independent and mass‐dependent isotopic fractionations. Due to the analytical challenges to obtain high‐precision K isotopic compositions in the past, potential differences in K isotopic compositions between
Zhao, Chen, Lodders, Katharina, Bloom, Hannah, Chen, Heng, Tian, Zhen, Koefoed, Piers, Pető, Mária K., Wang (王昆), Kun   +7 more
openaire   +4 more sources

Clay minerals and other hydrous alteration products in the Kaba meteorite: Review of the literature and new XRD investigations

Open Astronomy, 2023
The present study is a review of publications regarding special aspects of the mineralogy of the Kaba meteorite, clay minerals, hydrous phases, and organic matter.
Viczián István, Kristály Ferenc
doaj   +1 more source