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Mineralogical characterization of an eucrite Serra Pelada by Raman and XRD
Vibrational Spectroscopy ( IF 2.5 ) Pub Date : 2021-05-05 , DOI: 10.1016/j.vibspec.2021.103259
Bruno Nascimento-Dias , Caique Roque , Bruna Mayato , Kaique Alexandre D'Oliveira , Hugo Camarano Belgo , Maria Elizabeth Zucolotto , Virgilio de Carvalho dos Anjos

Serra Pelada is a newly discovered eucrite from an observed fall. Eucrites belong to the meteorite group HED. The HED represent the largest clan among the achondrites, which are extraterrestrial rocks that have gone through the process of planetary differentiation. Although few specific asteroids have been identified as meteorite sources, there is an association between asteroid (4) Vesta and the Howardite, Eucrite, Diogenite (HED) clan of achondrites. The main objective of this work is to characterize the mineralogical composition of the Serra Pelada eucrite and verify if it is petrologically consistent with eucrite meteorites. Raman and X-ray diffraction were used to search for mineralogical information. The main reason for using both techniques is the rapid acquisition of data and because they are considered non-destructive techniques. The results obtained through the techniques of Raman and XRD generated information on the chemical and mineralogical compositions consistent with those of an eucrite meteorite. Furthermore, the information generated by both techniques, as well as with existing data on the asteroid (4) Vesta, contributed greatly to better understand the Serra Pelada eucrite and its relation with its parental body. Currently, there is no article published in an international journal that has characterized the Serra Pelada meteorite, providing mineralogical information on the material. The characterization of the mineralogical composition of the Serra Pelada eucrite is important to understand the process of origin, formation and evolution of differentiated planetaries bodies such as (4) Vesta, which can even generate relevant information for terrestrial planets like Earth.



中文翻译:

拉曼和X射线衍射对Serra Pelada岩的矿物学表征

塞拉·佩拉达(Serra Pelada)是观察到的秋天新发现的玉石。Eucrites属于陨石集团HED。HED代表了无定形体中最大的氏族,无定形体是经历了行星分化过程的地外岩石。尽管很少有特定的小行星被确定为陨石的来源,但小行星(4)Vesta与陨石的Howardite,Eucrite,Diogenite(HED)家族之间存在关联。这项工作的主要目的是表征塞拉帕拉达(Serra Pelada)玉石的矿物学组成,并验证其在岩石学上是否与玉石陨石一致。拉曼和X射线衍射用于搜索矿物学信息。使用这两种技术的主要原因是数据的快速获取,并且因为它们被认为是非破坏性技术。通过拉曼光谱和X射线衍射技术获得的结果产生了与真玉陨石一致的化学和矿物组成信息。此外,这两种技术所产生的信息以及与小行星(4)Vesta有关的现有数据,为更好地了解塞拉佩拉达(Serra Pelada)绿岩及其与母体的关系做出了巨大贡献。目前,在国际期刊上没有发表任何以Serra Pelada陨石为特征的文章,该文章提供了有关该物质的矿物学信息。鉴定Serra Pelada玉石的矿物学组成对于了解不同行星体的起源,形成和演化过程(如(4)Vesta,

更新日期:2021-05-25
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