干旱区生态环境知识资源中心(Arid): Insight into African meteorite finds: Typology, mass distribution and weathering process

Arid

DOI	10.1016/j.jafrearsci.2019.103551
	Insight into African meteorite finds: Typology, mass distribution and weathering process
	Ouknine, Lahcen 1,4; Khiri, Fouad 1; Ibhi, Abderrahmane 1; Heikal, Mohamed Th S.2; Saint-Gerant, Thierry 3; Medjkane, Mohand 3
通讯作者	Ouknine, Lahcen
来源期刊	JOURNAL OF AFRICAN EARTH SCIENCES
ISSN	1464-343X
EISSN	1879-1956
出版年	2019
卷号	158
英文摘要	Africa is a favorable site for meteorites recovery in which the total number of meteorites represents more than 1/6 of all extra-terrestrial rocks recovered from the entire world. This work studies the classification of the African meteorite finds, their masses' distribution and their alteration grades to verify some factors influencing the weathering processes. The African population comprises an abundance of stony meteorites with high percentages of rare meteorites of the world collection: Martian meteorites (62%), Ureilites (51%), Rumuruti (59%), Lunar (47%), and HED (46%). Furthermore, throughout the last two decades, the authors noted an important increase of achondrite meteorites compared to the Australian and Antarctic collections. The mass distribution of African population shows that most of the recoveries (72%) have masses more than 100 g. It peaks at about 1 kg, compared to about 0.1 kg for the Australian collection and 0.01 kg for the Antarctic finds. On the other hand, the distribution of weathering grades (W) shows the predominant of W1 (32%) and W2 (34%) which proves a better preservation of meteorites. The factors influencing the mechanism and rate of alteration of African finds include the climate, which is the main factor, the mass, the terrestrial age and the initial porosity of the samples.
英文关键词	Meteorite finds Africa Classification Mass distribution Weathering grades
类型	Article
语种	英语
国家	Morocco ; Egypt ; France
收录类别	SCI-E
WOS记录号	WOS:000483456700014
WOS关键词	NON-ANTARCTIC METEORITES ; ORDINARY CHONDRITES ; HOT DESERT ; SHOCK METAMORPHISM ; TERRESTRIAL AGES ; COLLECTION AREA ; CLASSIFICATION ; ORIGIN ; IMPACT ; REGION
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216631
作者单位	1.Ibn Zohr Univ, Fac Sci, Petrol Metallogeny & Meteorites Team, Agadir, Morocco; 2.Tanta Univ, Fac Sci, Dept Geol, Tanta, Egypt; 3.Univ Caen, IDEES, Caen, France; 4.Fac Sci, Dept Geol, BP 8106, Cite Dakhla 80000, Agadir, Morocco
推荐引用方式 GB/T 7714	Ouknine, Lahcen,Khiri, Fouad,Ibhi, Abderrahmane,et al. Insight into African meteorite finds: Typology, mass distribution and weathering process[J],2019,158.
APA	Ouknine, Lahcen,Khiri, Fouad,Ibhi, Abderrahmane,Heikal, Mohamed Th S.,Saint-Gerant, Thierry,&Medjkane, Mohand.(2019).Insight into African meteorite finds: Typology, mass distribution and weathering process.JOURNAL OF AFRICAN EARTH SCIENCES,158.
MLA	Ouknine, Lahcen,et al."Insight into African meteorite finds: Typology, mass distribution and weathering process".JOURNAL OF AFRICAN EARTH SCIENCES 158(2019).