Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1111/maps.13311 |
| Meteorites from the Lut Desert (Iran) | |
| Pourkhorsandi, Hamed1,2; Gattacceca, Jerome1; Rochette, Pierre1; D’Orazio, Massimo3; Kamali, Hojat4; de Avillez, Roberto5; Letichevsky, Sonia5; Djamali, Morteza6; Mirnejad, Hassan7; Debaille, Vinciane2; Jull, A. J. Timothy8 | |
| 通讯作者 | Pourkhorsandi, Hamed |
| 来源期刊 | METEORITICS & PLANETARY SCIENCE
 |
| ISSN | 1086-9379 |
| EISSN | 1945-5100 |
| 出版年 | 2019 |
| 卷号 | 54期号:8页码:1737-1763 |
| 英文摘要 | We present for the first time a detailed report on the discovery of a new meteorite collection region in the Lut Desert, eastern-southeastern Iran, describing its geological, morphological, and climatic setting. Our search campaigns, alongside with the activity of meteorite hunters, yielded >200 meteorite finds. Here, we report on their classification, spatial distribution, and terrestrial weathering. All the collected meteorites are ordinary chondrites (OCs). The most abundant by far are the highly weathered paired H5 distributed in the northwest of Kalut area (central Lut, Kerman dense collection area). The second are well-preserved paired L5 also found in Kalut region. A detailed study of the geochemistry and mineralogy of selected meteorites reveals significant effects of terrestrial weathering. Fe,Ni metal (hereafter simply metal) and troilite are transformed into Fe oxyhydroxides. A rather unusual type of troilite weathering to pyrite/marcasite is observed in most of the Lut Desert meteorites. Magnetic measurements and X-ray diffractometry confirm the occurrence of terrestrial weathering products, with the dominance of maghemite, goethite, and hematite. Mobile elements, such as Li, Sr, Mo, Ba, Tl, Th, and U, are enriched with respect to fresh falls. Meanwhile, a decrease in the V, Cr, Co, Rb (and possibly Fe) due to terrestrial weathering is detectable. The total carbon and CaCO3 is higher than in samples from other hot deserts. The weathering effects observed in the Lut Desert OCs can be used as distinctive indicators to distinguish them from meteorites from other regions of the Earth. Measurements of terrestrial age (C-14) show a range of 10-30 ka, which is in the range of ages reported for meteorites from other hot deserts except the Atacama Desert (Chile). Considering the high potential of the Lut Desert in meteorite preservation, systematic works should lead to the discovery of more samples giving access to interesting material for future studies. |
| 类型 | Article |
| 语种 | 英语 |
| 国家 | France ; Belgium ; Italy ; Iran ; Brazil ; USA |
| 开放获取类型 | Green Submitted |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000478646800005 |
| WOS关键词 | C-14 TERRESTRIAL AGES ; ORDINARY CHONDRITES ; HOT DESERT ; ATACAMA DESERT ; MAGNETIC CLASSIFICATION ; STONY METEORITES ; STREWN FIELD ; NULLARBOR REGION ; COLLECTION AREA ; ORGANIC-MATTER |
| WOS类目 | Geochemistry & Geophysics |
| WOS研究方向 | Geochemistry & Geophysics |
| 来源机构 | University of Arizona ; French National Research Institute for Sustainable Development |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/217579 |
| 作者单位 | 1.Aix Marseille Univ, CNRS, IRD, Coll France,INRA,CEREGE, Aix En Provence, France; 2.Univ Libre Bruxelles, Lab G Time, CP 160-02,50 Ave FD Roosevelt, B-1050 Brussels, Belgium; 3.Univ Pisa, Dipartimento Sci Terra, Via S Maria 53, I-56126 Pisa, Italy; 4.Afshin Meteorite Hunting Grp, Kerman, Iran; 5.DEQM PUC Rio, Dept Engn Quim & Mat, Rua Marques de Sao Vicente 225, BR-22453900 Rio De Janeiro, Brazil; 6.Avignon Univ, Aix Marseille Univ, CNRS, IMBE, Aix En Provence, France; 7.Univ Tehran, Coll Sci, Sch Geol, Tehran 1415564155, Iran; 8.Univ Arizona, Arizona AMS Lab, Tucson, AZ 85721 USA |
| 推荐引用方式 GB/T 7714 | Pourkhorsandi, Hamed,Gattacceca, Jerome,Rochette, Pierre,et al. Meteorites from the Lut Desert (Iran)[J]. University of Arizona, French National Research Institute for Sustainable Development,2019,54(8):1737-1763. |
| APA | Pourkhorsandi, Hamed.,Gattacceca, Jerome.,Rochette, Pierre.,D’Orazio, Massimo.,Kamali, Hojat.,...&Jull, A. J. Timothy.(2019).Meteorites from the Lut Desert (Iran).METEORITICS & PLANETARY SCIENCE,54(8),1737-1763. |
| MLA | Pourkhorsandi, Hamed,et al."Meteorites from the Lut Desert (Iran)".METEORITICS & PLANETARY SCIENCE 54.8(2019):1737-1763. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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