FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4285296688> ?p ?o ?g. }

• W4285296688 endingPage "1218" @default.
• W4285296688 startingPage "1202" @default.
• W4285296688 abstract "宰便地区位于江南造山带西南段，发育有一系列新元古代镁铁质-超镁铁质火成岩。 然而，其成因与构造背景仍存在广泛争议。因此，本文选择江南造山带西南段宰便辉绿岩为研究对象，系统开展岩石学、地球化学、Nd-Hf同位素和锆石U-Pb年代学研究。研究结果表明，辉绿岩具有高Mg^#（50~69）、高Al₂O₃（13.94%~18.63%）、低钾（0.03%~0.33%）、低磷（0.04%~0.28%）特征，显示为低钾拉斑系列岩石特点。同时，岩石整体相对富集Th、U等大离子亲石元素，亏损Nb和Y等高场强元素，Eu具有微弱负异常特征。辉绿岩的Nb/Ta、Zr/Nb比值揭示了母岩浆在岩浆侵位过程中未发生地壳混染。3件样品的锆石U-Pb年龄分别为820.7±3.0Ma、821.1±9.2Ma和823.1±9.5Ma，表明岩浆侵位时代为新元古代早期。锆石ε_Hf（t）值介于-13.6~7.7之间，Hf的t_DM2值介于1214~2547Ma之间，结合全岩地球化学特征，揭示其原始岩浆可能源于富集地幔，并伴有一定的亏损地幔参与。综合前人和本次研究的地质、地球化学和年代学数据，本文认为江南造山带西南段宰便地区在新元古代早期处于板内构造环境。;The Neoproterozoic mafic-ultramafic rocks are widely developed in the Zaibian area, the southwestern margin of the Jiangnan orogenic belt (JOB), South China. The petrogenesis and tectonic setting of these mafic-ultramafic rocks remain controversial. In this work, we present petrology, geochemistry, Nd-Hf isotopes and zircon LA-ICP-MS U-Pb geochronology of Zaibian diabase, with the aim to reveal their petrogenesis and tectonic setting. Geochemical data suggest the diabase are characterized by high Mg^# (50~69), high Al₂O₃ (13.94%~18.63%), low K₂O (0.03%~0.33%) and low P₂O₅ (0.04%~0.28%), indicating the characteristics of the low potassium tholeiite series. The rocks are also relatively enriched in Th, U elements and depleted in Nb and Y elements, with a weakly negative Eu anomaly. Their relatively constant Nb/Ta, Zr/Nb ratios suggest that these rocks have not underwent contamination during magma emplacement. Zircon U-Pb dating results yielded U-Pb concordant ages of 823.1±9.5Ma, 821.1±9.2Ma and 820.7±3.0Ma, respectively, suggesting that Zaibian diabases were formed in the Early Neoproterozoic. Zircon Lu-Hf isotopes show the ε_Hf(t) values varying from -13.6 to 7.7, with t_DM2 model ages in the range of 1214~2547Ma. Combined with the whole rock geochemical characteristics, these isotopic features further suggest that the magmas are derived mainly from E-mantle involved some depleted mantle components. Based on geological, geochemical and chronological characteristics from this and previous studies, we propose that the Zaibian area within the southwestern part of JOB was under an intraplate tectonic setting during the Early Neoproterozoic." @default.
• W4285296688 created "2022-07-14" @default.
• W4285296688 creator A5008199435 @default.
• W4285296688 creator A5038536818 @default.
• W4285296688 creator A5042929513 @default.
• W4285296688 creator A5068722381 @default.
• W4285296688 creator A5069624372 @default.
• W4285296688 date "2022-01-01" @default.
• W4285296688 modified "2023-10-16" @default.
• W4285296688 title "Geochronology, geochemistry and isotopes of Zaibian diabase in the western margin of Jiangnan orogenic belt, China: Implications for tectonic evolution" @default.
• W4285296688 cites W1104249897 @default.
• W4285296688 cites W1120155448 @default.
• W4285296688 cites W1797283169 @default.
• W4285296688 cites W1871734886 @default.
• W4285296688 cites W1964909252 @default.
• W4285296688 cites W1966642168 @default.
• W4285296688 cites W1970672357 @default.
• W4285296688 cites W1972712898 @default.
• W4285296688 cites W1975956926 @default.
• W4285296688 cites W1980252116 @default.
• W4285296688 cites W1981207838 @default.
• W4285296688 cites W1981756317 @default.
• W4285296688 cites W1984325281 @default.
• W4285296688 cites W1985560495 @default.
• W4285296688 cites W1985794693 @default.
• W4285296688 cites W1987860057 @default.
• W4285296688 cites W1996333061 @default.
• W4285296688 cites W1996489529 @default.
• W4285296688 cites W1999448338 @default.
• W4285296688 cites W2004568130 @default.
• W4285296688 cites W2005830824 @default.
• W4285296688 cites W2008591861 @default.
• W4285296688 cites W2012991210 @default.
• W4285296688 cites W2017024871 @default.
• W4285296688 cites W2021263947 @default.
• W4285296688 cites W2021704348 @default.
• W4285296688 cites W2035595872 @default.
• W4285296688 cites W2035883416 @default.
• W4285296688 cites W2038631041 @default.
• W4285296688 cites W2040029696 @default.
• W4285296688 cites W2045852448 @default.
• W4285296688 cites W2047567126 @default.
• W4285296688 cites W2051273227 @default.
• W4285296688 cites W2053273118 @default.
• W4285296688 cites W2061207483 @default.
• W4285296688 cites W2063207424 @default.
• W4285296688 cites W2066086830 @default.
• W4285296688 cites W2070944939 @default.
• W4285296688 cites W2071386916 @default.
• W4285296688 cites W2075551791 @default.
• W4285296688 cites W2083522304 @default.
• W4285296688 cites W2090080717 @default.
• W4285296688 cites W2093067863 @default.
• W4285296688 cites W2119438235 @default.
• W4285296688 cites W2138522501 @default.
• W4285296688 cites W2142319922 @default.
• W4285296688 cites W2144531676 @default.
• W4285296688 cites W2145191782 @default.
• W4285296688 cites W2145604970 @default.
• W4285296688 cites W2151802570 @default.
• W4285296688 cites W2161188118 @default.
• W4285296688 cites W2166978438 @default.
• W4285296688 cites W2169766597 @default.
• W4285296688 cites W2325514473 @default.
• W4285296688 cites W2581834115 @default.
• W4285296688 cites W2588552471 @default.
• W4285296688 cites W2790979268 @default.
• W4285296688 cites W2969930063 @default.
• W4285296688 cites W2977219245 @default.
• W4285296688 cites W2995482781 @default.
• W4285296688 cites W3013386824 @default.
• W4285296688 cites W3014456121 @default.
• W4285296688 cites W3041253217 @default.
• W4285296688 cites W3136847297 @default.
• W4285296688 cites W3141509744 @default.
• W4285296688 cites W3192687698 @default.
• W4285296688 cites W4200237694 @default.
• W4285296688 doi "https://doi.org/10.18654/1000-0569/2022.04.14" @default.
• W4285296688 hasPublicationYear "2022" @default.
• W4285296688 type Work @default.
• W4285296688 citedByCount "0" @default.
• W4285296688 crossrefType "journal-article" @default.
• W4285296688 hasAuthorship W4285296688A5008199435 @default.
• W4285296688 hasAuthorship W4285296688A5038536818 @default.
• W4285296688 hasAuthorship W4285296688A5042929513 @default.
• W4285296688 hasAuthorship W4285296688A5068722381 @default.
• W4285296688 hasAuthorship W4285296688A5069624372 @default.
• W4285296688 hasConcept C11872896 @default.
• W4285296688 hasConcept C127313418 @default.
• W4285296688 hasConcept C167284885 @default.
• W4285296688 hasConcept C17409809 @default.
• W4285296688 hasConcept C195081551 @default.
• W4285296688 hasConcept C202746551 @default.
• W4285296688 hasConcept C2778849375 @default.
• W4285296688 hasConcept C44938399 @default.
• W4285296688 hasConcept C67236022 @default.
• W4285296688 hasConceptScore W4285296688C11872896 @default.
• W4285296688 hasConceptScore W4285296688C127313418 @default.

• next