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1.PETROCHEMISTRY AND Sr,Nd,Pb-ISOTOPIC GEOCHEMISTRY OF CENOZOIC VOLCANIC ROCKS,CHANGBAISHAN AREA, NORTHEAST CHINA
长白山地区新生代火山岩的岩石化学及Sr、Nd、Pb同位素地球化学研究收藏指正
2.The Sr-Nd-Pb isotope evolution in the investigated area appear in a clear track.
本区的Sr-Nd-Pb同位素演化轨迹清楚。收藏指正
3.Their Sr-Nd,Pb-Pb,Sr-Pb and Nd-Pb isotopic signatures indicate that most carbonatites were derived from a transitional source between EMI and EMII components,related to recycling of the pelagic/terrigenous sediments with various mass ratios and underlying MORB-like oceanic crust by subduction process in Proterozoic times,whereas some carbonatites underwent Sr-Nd-Pb contamination by crustal materials.
它们的Sr-Nd、Pb-Pb、Sr-Pb和Nd-Pb同位素特征表明大多数碳酸岩来源于EMⅠ与EMⅡ之间的一种混合地幔,与元古宙不同质量比的深海/陆源沉积物和下覆的似MORB由俯冲作用引起的洋壳的再循环有关,而少数碳酸岩则受到地壳物质混染的结果。收藏指正
4.Sr Nd Pb Isotopic Compositions and Source Features of Mesozoic to Cenozoic Magmatic Rocks on King George Island,Antarctica
南极乔治王岛中—新生代岩浆岩Sr-Nd-Pb同位素组成及源区特征收藏指正
5.Sr-Nd-Pb isotope geochemistry and tectonic setting of Devonian polymetallic metallogenic belt on the Southern margin of Altaid,Xingjing.
新疆阿尔泰南缘泥盆纪多金属成矿带Sr-Nd-Pb同位素地球化学与构造背景探讨收藏指正
6.Discussion of the sources and characteristics on SrNdPb isotopes of the Carboniferous to Permian post-collision granites from Tianshan
天山石炭—二叠纪后碰撞花岗岩的Nd、Sr、Pb同位素源区示踪收藏指正
7.Study on the Sr, Nd, Pb and O isotopes of basic dyke swarms in the Wudang block and basic volcanics of the Yaolinghe Group
武当地块基性岩墙群及耀岭河群基性火山岩的Sr、Nd、Pb、O同位素研究收藏指正
8.According to trace elements and Sr,Nd,Pb isotopic data,it is concluded that volcanic rocks in Ross Islands and Taylor Valley,Antarctica come from upper mantle and have a characteristics of OIB;
利用微量元素和Sr,Nd,Pb同位素资料,得出了南极罗斯岛及泰勒谷地区火山岩来自于上地幔,五个地区火山岩具有相同的源区。 岩石具有大洋岛屿玄武岩(OIB)的特征。收藏指正
9.On the basis of Sr-Nd-Pb isotope geochemical and tectonic features mentioned above,it is assumed that the endmember component of EMⅡ of Mesozoic mantle sources in southerm Jiangxi was derived from the Gondwanaland.
根据Pb -Nd -Sr同位素地球化学及构造特征 ,推测赣南中生代地幔源区中的EMⅡ富集地幔端元组分可能源自冈瓦纳古陆。收藏指正
10.The relatively homogeneous Sr-Nd-Pb isotopic compositions of the two kinds of basalts indicate that Eogene basalts in Yangxin area were derived from convective asthenosphere mantle, but Eocene basalts experienced, in some extent, the contamination by EMⅠand EMⅡenriched mantle.
Sr-Nd-Pb同位素组成较为均一,表明阳信地区古近纪玄武岩源区主要来自对流软流圈地幔,但始新世玄武岩还遭受了一定程度的EMⅠ和EMⅡ富集地幔的混染。收藏指正
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