来自Apuan Alps (Tuscany, Italy) Artana Mn远景区的富镍和富Fe3+氧驱石

IF 1.1 4区地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS

Journal of Geosciences Pub Date : 2022-09-27 DOI:10.3190/jgeosci.346

D. Mauro, C. Biagioni, U. Hålenius, H. Skogby, V. Dottorini, F. Bosi

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引用次数: 1

摘要

在意大利托斯卡纳Apuan Alps Carrara的Artana Mn远景区采集的样品中发现了富含镍和fe3 +的氧驱石。氧吸石呈棕黄色棱柱状晶体，长度可达0.3毫米，与石英、碳酸盐和赤铁矿伴生。电子探针分析给出(wt % - 7点分析的平均值):sio2 35.81, tio2 0.41, b2o3 (calc) 10.38, al2o3 29.36, v2o3 0.78, cr2o3 0.09, fe2o3 3.32, FeO 0.33, MgO 8.04, CaO 0.39, MnO 0.34, NiO 3.46, ZnO 0.40, na2o 2.84, F 0.29, h2o (calc) 3.00, O = F - 0.12，总计99.12。根据光吸收计算fe3 + / fetot比值

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Nickel- and Fe3+-rich oxy-dravite from the Artana Mn prospect, Apuan Alps (Tuscany, Italy)

Nickel-and Fe 3+ -rich oxy-dravite was identified on a specimen collected in the Artana Mn prospect, Carrara, Apuan Alps, Tuscany, Italy. Oxy-dravite occurs as brownish-orange prismatic crystals, up to 0.3 mm in length, associated with quartz, carbonates, and hematite. Electron microprobe analysis gave (in wt. % – average of 7 spot analyses): SiO 2 35.81, TiO 2 0.41, B 2 O 3(calc) 10.38, Al 2 O 3 29.36, V 2 O 3 0.78, Cr 2 O 3 0.09, Fe 2 O 3 3.32, FeO 0.33, MgO 8.04, CaO 0.39, MnO 0.34, NiO 3.46, ZnO 0.40, Na 2 O 2.84, F 0.29, H 2 O (calc) 3.00, O = F –0.12, total 99.12. The Fe 3+ /Fe tot ratio was calculated based on optical absorp

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来源期刊

Journal of Geosciences GEOSCIENCES, MULTIDISCIPLINARY-MINERALOGY

CiteScore

2.30

自引率

7.10%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Geosciences is an international peer-reviewed journal published by the Czech Geological Society with support from the Czech Geological Survey. It accepts high-quality original research or review papers dealing with all aspects of the nature and origin of igneous and metamorphic rocks. The Journal focuses, mainly but not exclusively, on: -Process-oriented regional studies of igneous and metamorphic complexes- Research in structural geology and tectonics- Igneous and metamorphic petrology- Mineral chemistry and mineralogy- Major- and trace-element geochemistry, isotope geochemistry- Dating igneous activity and metamorphic events- Experimental petrology and mineralogy- Theoretical models of igneous and metamorphic processes- Mineralizing processes and mineral deposits. All the papers are written in English, even though they may be accompanied by an additional Czech abstract. Each contribution is a subject to peer review by at least two independent reviewers, typically at least one from abroad. The Journal appears 2 to 4 times a year. Formally it is divided in annual volumes, each of them including 4 issues.