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北疆地区阿尔曼太蛇绿岩锆石SHRIMP年龄及其大地构造意义 被引量:145
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作者 肖文交 BF windley +6 位作者 阎全人 秦克章 陈汉林 袁超 孙敏 李继亮 孙枢 《地质学报》 EI CAS CSCD 北大核心 2006年第1期32-37,共6页
东准噶尔带阿尔曼太蛇绿岩是中亚造山带南部的重要构造单元,记录了古亚洲洋的演化,但其时代一直是学术界争论的焦点问题之一。本文报道阿尔曼太蛇绿岩中斜长花岗岩锆石SHRIMPU-Pb年龄。9组测试数据给出了较好的206Pb/238U年龄503±7... 东准噶尔带阿尔曼太蛇绿岩是中亚造山带南部的重要构造单元,记录了古亚洲洋的演化,但其时代一直是学术界争论的焦点问题之一。本文报道阿尔曼太蛇绿岩中斜长花岗岩锆石SHRIMPU-Pb年龄。9组测试数据给出了较好的206Pb/238U年龄503±7Ma(MSWD=1.2)。结合相关大地构造解剖与前人的年龄数据,本文认为阿尔曼太蛇绿岩是古亚洲洋在晚寒武世-早奥陶世的残余,与岛弧火山岩组成洋内弧。该洋内弧向北拼贴到阿尔泰地体南缘,形成科迪勒拉型俯冲边缘。东准噶尔带是阿尔泰南缘在古生代向南增生的弧碰撞-增生造山带,对大陆侧向增生具有重要意义。 展开更多
关键词 洋内弧 蛇绿岩 锆石SHRIMP年龄 东准噶尔 中亚
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鞍本太古代条带状铁建造(BIF)的稀土及微量元素特征 被引量:21
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作者 翟明国 windley +3 位作者 B.F.Sills J.D. 杨瑞英 韩松 《地球化学》 CAS CSCD 北大核心 1989年第3期241-250,共10页
本区围岩和BIF具有完全相同的地球化学性质。BIF有低S、CO_2和Al_2O_3,特别低的TiO_2和Zr含量,其REE特征是低的∑REE含量和强的正Eu异常。推测鞍本地区的BIF属于晚太古代陆壳盆地内的化学沉积变质矿床。在沉积过程中,有极少量泥质组分加... 本区围岩和BIF具有完全相同的地球化学性质。BIF有低S、CO_2和Al_2O_3,特别低的TiO_2和Zr含量,其REE特征是低的∑REE含量和强的正Eu异常。推测鞍本地区的BIF属于晚太古代陆壳盆地内的化学沉积变质矿床。在沉积过程中,有极少量泥质组分加入,成矿物质与火山活动无明显关系。 展开更多
关键词 铁矿 稀土 微量元素 BIF
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Tectonic facies and the archipelago-accretion process of the West Kunlun, China 被引量:9
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作者 肖文交 侯泉林 +8 位作者 李继亮 Brian F. windley 郝杰 方爱民 周辉 王志洪 陈汉林 张国成 袁超 《Science China Earth Sciences》 SCIE EI CAS 2000年第S1期134-143,共10页
A tectonic facies investigation carried out in the West Kunlun, China allows us to have worked out a tectonic model of orogen. The tectonic facies, from the north to the south, are composed of the following: 1. Southe... A tectonic facies investigation carried out in the West Kunlun, China allows us to have worked out a tectonic model of orogen. The tectonic facies, from the north to the south, are composed of the following: 1. Southern Tarim tectonic realm; 2. North Kudi magmatic arc; 3. Kudi melange; 4. Kudi micro-continent; 5. main shear zone; 6. Xianan Bridge calc alkaline complex; 7. Mazar-Kangxiwar melange-accretion complex; and 8. Tianshuihai foreland fold-thrust belt. The tectonic facies 1->5 recorded the history of the northward subduction of the Prototethys and southward accretion of Eurasia in the Late Proterozoic-Early Paleozoic time, while the tectonic facies 6->8 recorded the history of the northward subduction of the Paleotethys and southward accretion of Eurasia in the Late Paleozoic-Early Mesozoic time, that of the tectonic evolution of the passive margin of the Qiangtang block, and that of the docking and the final amalgamation of the Qiangtang block to the Eurasian continent. The tectonic facies investigation has indicated that a complicated archipelago-accretion orogenesis took place in the West Kunlun orogen, which was the important character of southward growth of the Eurasian continent. 展开更多
关键词 the West KUNLUN OROGEN TECTONIC fades archipelago-accretion orogen.
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西昆仑大地构造相解剖及其多岛增生过程 被引量:76
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作者 肖文交 侯泉林 +8 位作者 李继亮 B.F.windley 郝杰 方爱民 周辉 王志洪 陈汉林 张国成 袁超 《中国科学(D辑)》 CSCD 2000年第B12期22-28,共7页
西昆仑造山带的大地构造相自北向南大致包括:(i)塔里木地块西南构造域, (ii)库地北岩浆弧,(iii)库地混杂带,(iv)库地微陆块,(v)主剪切带,(vi)峡南桥钙 碱性岩浆杂岩带,(vii)麻扎-康西瓦混杂带-增... 西昆仑造山带的大地构造相自北向南大致包括:(i)塔里木地块西南构造域, (ii)库地北岩浆弧,(iii)库地混杂带,(iv)库地微陆块,(v)主剪切带,(vi)峡南桥钙 碱性岩浆杂岩带,(vii)麻扎-康西瓦混杂带-增生楔,(viii)甜水海前陆褶皱冲断带等组成 部分.其中大地构造相(I)-(v)记录了晚元古代-早古生代原特提斯大洋向北消减,欧 亚大陆向南增生的历史,而大地构造相(vi)-(viii)记录了羌塘地块北部被动陆缘沉积 大地构造演化、古特提斯洋晚古生代-早中生代的消减以及羌塘地块与欧亚大陆碰撞、 拼贴并最终焊合的历史.大地构造相分析表明西昆仑造山带存在复杂的多岛海-增生弧 造山作用.这种复杂的多岛增生作用是欧亚大陆向南增生的重要特征. 展开更多
关键词 西昆仑 大地构造相 多岛海-增生弧造山带
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Geological Evidence for the Operation of Plate Tectonics throughout the Archean:Records from Archean Paleo-Plate Boundaries 被引量:26
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作者 Timothy M.Kusky Brian F.windley Ali Polat 《Journal of Earth Science》 SCIE CAS CSCD 2018年第6期1291-1303,共13页
Plate tectonics describes the horizontal motion of rigid lithospheric plates away from midoceanic ridges and parallel to transforms, towards deep-sea trenches, where the oceanic lithosphere is subducted into the mantl... Plate tectonics describes the horizontal motion of rigid lithospheric plates away from midoceanic ridges and parallel to transforms, towards deep-sea trenches, where the oceanic lithosphere is subducted into the mantle. This process is the surface expression of modern-day heat loss from Earth. One of the biggest questions in Geosciences today is "when did plate tectonics begin on Earth" with a wide range of theories based on an equally diverse set of constraints from geology, geochemistry, numerical modeling, or pure speculation. In this contribution, we turn the coin over and ask "when was the last appearance in the geological record for which there is proof that plate tectonics did not operate on the planet as it does today". We apply the laws of uniformitarianism to the rock record to ask how far back in time is the geologic record consistent with presently-operating kinematics of plate motion, before which some other mechanisms of planetary heat loss may have been in operation. Some have suggested that evidence shows that there was no plate tectonics before 800 Ma ago, others sometime before 1.8–2.7 Ga, or before 2.7 Ga. Still others recognize evidence for plate tectonics as early as 3.0 Ga, 3.3–3.5 Ga, the age of the oldest rocks, or in the Hadean before 4.3 Ga. A key undiscussed question is: why is there such a diversity of opinion about the age at which plate tectonics can be shown to not have operated, and what criteria are the different research groups using to define plate tectonics, and to recognize evidence of plate tectonics in very old rocks? Here, we present and evaluate data from the rock record, constrained by relevant geochemical-isotopic data, and conclude that the evidence shows indubitably that plate tectonics has been operating at least since the formation of the oldest rocks, albeit with some differences in processes, compositions, and products in earlier times of higher heat generation and mantle temperature, weaker oceanic lithosphere, hotter subduction zones caused by mor 展开更多
关键词 ARCHEAN TECTONICS OPHIOLITE OPS(oceanic plate stratigraphy) OROGENY
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鞍本地区鞍山群变质矿物及变质作用 被引量:17
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作者 翟明国 J.D.Sills B.F.windley 《岩石矿物学杂志》 CAS CSCD 1990年第2期148-158,共11页
鞍本地区鞍山群变质岩出露区可分为鞍山、辽阳、本溪三个小区。所有的变质岩均属角闪岩相,从西向东,变质程度递增。三个小区最先出现的特征变质矿物分别是铁铝榴石、十字石和夕线石。退化变质作用由西向东递减,在东-西鞍山矿区已退变为... 鞍本地区鞍山群变质岩出露区可分为鞍山、辽阳、本溪三个小区。所有的变质岩均属角闪岩相,从西向东,变质程度递增。三个小区最先出现的特征变质矿物分别是铁铝榴石、十字石和夕线石。退化变质作用由西向东递减,在东-西鞍山矿区已退变为绿片岩相,在绿泥片岩中普通角闪石仅作为残留矿物出现在绿泥石的核心。鞍山小岭子矿区有紫苏辉石、红柱石和尖晶石组合,它们是燕山期花岗岩围岩中的接触变质矿物。 展开更多
关键词 鞍山群 矿物 变质
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西昆仑“库地蛇绿岩”的解体及有关问题的讨论 被引量:16
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作者 郝杰 刘小汉 +2 位作者 方爱民 肖文交 B.F.windley 《自然科学进展》 北大核心 2003年第10期1116-1120,共5页
路线地质填图和构造变形、变质作用研究表明,构成“库地蛇绿岩”的超镁铁质岩石和火山-复理石建造在产状和变形、变质等地质特征上存在着截然的差异,古生物和同位素年代学资料也显示着它们可能属于2个不同时代的岩石组合,因此建议将其... 路线地质填图和构造变形、变质作用研究表明,构成“库地蛇绿岩”的超镁铁质岩石和火山-复理石建造在产状和变形、变质等地质特征上存在着截然的差异,古生物和同位素年代学资料也显示着它们可能属于2个不同时代的岩石组合,因此建议将其解体成两部分:前一部分是在早古生代早或中期发生构造侵位,构成加里东期古昆仑造山带的一个构造单元,被早古生代末期和晚古生代早期形成在拉张构造背景的碱性花岗岩和煌斑岩脉侵入,显示已经作为新一期构造旋回基底的一部分;后一部分形成在中泥盆世至石炭纪,是新一期大陆裂解作用的产物. 展开更多
关键词 西昆仑造山带 库地蛇绿岩 超镁铁质岩石 火山-复理石 构造变形 变质作用
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Early terrestrial and lunar anorthosites:Comparative geochemistry and evolutionary processes
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作者 Paul Sotiriou Ali Polat +1 位作者 Tim Kusky Brian F.windley 《Geoscience Frontiers》 SCIE CAS CSCD 2024年第6期348-366,共19页
In a paper in 1970,Brian Windley first recognised that early terrestrial and lunar anorthosites both have calcic plagioclase,and low TiO_(2)and high CaO and Al_(2)O_(3)contents.Despite these similarities,the geochemis... In a paper in 1970,Brian Windley first recognised that early terrestrial and lunar anorthosites both have calcic plagioclase,and low TiO_(2)and high CaO and Al_(2)O_(3)contents.Despite these similarities,the geochemistry of early terrestrial and lunar anorthosites has not been rigorously compared and contrasted.To this end,we compiled 425 analyses from 212 early terrestrial anorthosite occurrences and 306 analyses from 16 lunar anorthosite occurrences.This was supplemented by a compilation of plagioclase anorthite(An)contents and pyroxene Mg#from early terrestrial and lunar anorthosites.Early terrestrial anorthosites have lower whole-rock An contents but similar Mg#to lunar anorthosites.The CaO contents of lunar anorthosites are higher than those of early terrestrial anorthosites for a given MgO and Al_(2)O_(3)content,early terrestrial anorthosites have higher SiO_(2)contents than lunar anorthosites at a given MgO content,and lunar anorthosites have higher Eu/Eu*anomaly ratios yet broadly similar La/Yb and Nd/Sm ratios than early terrestrial anorthosites.Some early terrestrial anorthosites have less fractionated chondrite-normalised rare earth element(REE)patterns and less prominent positive Eu anomalies than lunar anorthosites.Lunar anorthosites have higher plagioclase An contents,yet a similar range of pyroxene Mg#compared to their early terrestrial counterparts.Some early terrestrial anorthosites are more fractionated than some lunar anorthosites.Our interpretations imply that most early terrestrial anorthosites crystallised from basaltic parental magmas that were generated by high-degree partial melting of sub-arc asthenosphere mantle wedge sources that were hydrated by slab-derived fluids,with the remainder being associated with mid-ocean ridge and mantle plume settings.Some of the arc-related early terrestrial anorthosites were influenced by crustal contamination.In addition,early terrestrial anorthosites originated from partial melting of the mantle at various depths with variable garnet residua,whereas lu 展开更多
关键词 Early terrestrial anorthosites Lunar anorthosites GEOCHEMISTRY Mineral chemistry
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冀东迁安地区太古代片麻杂岩的地球化学和演化 被引量:3
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作者 王凯怡 J.Sills B.F.windley 《地质科学》 CAS CSCD 北大核心 1990年第4期344-358,共15页
曹庄片麻杂岩包括35亿年的表壳岩及三个不同时期的复期正片麻岩。水厂片麻杂岩包括水厂表壳岩及侵入其中的淡花岗岩和紫苏花岗岩,后者年龄为26.5亿年。
关键词 片麻岩 同位素 年代学 地球化学
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Subaqueous early eruptive phase of the late Aptian Rajmahal volcanism,India:Evidence from volcaniclastic rocks,bentonite,black shales,and oolite 被引量:3
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作者 Naresh C.Ghose Nilanjan Chatterjee Brian F.windley 《Geoscience Frontiers》 SCIE CAS CSCD 2017年第4期809-822,共14页
The late Aptian(118-115 Ma) continental flood basalts of the Rajmahal Volcanic Province(RVP) are part of the Kerguelen Large Igneous Province,and constitute the uppermost part of the Gondwana Supergroup on the eas... The late Aptian(118-115 Ma) continental flood basalts of the Rajmahal Volcanic Province(RVP) are part of the Kerguelen Large Igneous Province,and constitute the uppermost part of the Gondwana Supergroup on the eastern Indian shield margin.The lower one-third of the Rajmahal volcanic succession contains thin layers of plant fossil-rich inter-trappean sedimentary rocks with pyroclasts,bentonite,grey and black shale/mudstone and oolite,whereas the upper two-thirds consist of sub-aerial fine-grained aphyric basalts with no inter-trappean material.At the eastern margin and the north-central sector of the RVP,the volcanics in the lower part include rhyolites and dacites overlain by enstatite-bearing basalts and enstatite-andesites.The pyroclastic rocks are largely felsic in composition,and comprise ignimbrite as well as coarse-grained tuff with lithic clasts,and tuff breccia with bombs,lapilli and ash that indicate explosive eruption of viscous rhyolitic magma.The rhyolites/dacites(〉68 wt.%) are separated from the andesites(〈 60 wt.%) by a gap in silica content indicating their formation through upper crustal anatexis with only heat supplied by the basaltic magma.On the other hand,partially melted siltstone xenoliths in enstatite-bearing basalts suggest that the enstatite-andesites originated through mixing of the upper crust with basaltic magma,crystallizing orthopyroxene at a pressure-temperature of ~3 kb/1150℃.In contrast,the northwestern sector of the RVP is devoid of felsic-intermediate rocks,and the volcaniclastic rocks are predominantly mafic(basaltic) in composition.Here,the presence of fine-grained tuffs,tuff breccia containing sideromelane shards and quenched texture,welded tuff breccia,peperite,shale/mudstone and oolite substantiates a subaqueous environment.Based on these observations,we conclude that the early phase of Rajmahal volcanism occurred under predominantly subaqueous conditions.The presence of grey and black shale/mudstone in the lower one-third of the succession across 展开更多
关键词 Rajmahal basalt Andesite Rhyolite Pyroclast Black shale Oolite
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将今论古新解——板块构造是认识过去的模式
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作者 B.F.windley 邓清录 《地质科学译丛》 1994年第1期34-41,共8页
James Hutton 1795年出版了《地球论》头两卷,而第三卷却在他死后的1899年才由地质学会发表。Charles Lyell在给地质学会的四项致辞中(1836,1837,1850,1851),将Hutton的均变思想(将今论古)阐述得更加透彻、明晰。今天我们可以这样理解... James Hutton 1795年出版了《地球论》头两卷,而第三卷却在他死后的1899年才由地质学会发表。Charles Lyell在给地质学会的四项致辞中(1836,1837,1850,1851),将Hutton的均变思想(将今论古)阐述得更加透彻、明晰。今天我们可以这样理解将今论,即板块构造是认识过去的模式。此文概括了重要的资料和看法以论证板块构造可确信无疑地应用到地史时期的最初阶段。尽管存在着早前寒武纪热流值比现代高的事实,但大洋与大陆生成的构造物理与构造化学过程从古太古代到现代并没有本质的不同。 展开更多
关键词 构造地质学 板块构造 中元古代
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均变论在今天:板块构造是了解过去的钥匙
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作者 B.F.windley 金性春 《海洋地质译丛》 1993年第6期58-68,共11页
“现在是了解过去的钥匙”,这是 J.郝屯于1788年提出的均变论范式。他在1795年出版了他的著作《地球理论》前两卷。在第二卷的总结中他说:“为了达到这一目标,下一步我将检验该理论矿物学等方面的论据。”但他并未能在逝世(1797年)前出... “现在是了解过去的钥匙”,这是 J.郝屯于1788年提出的均变论范式。他在1795年出版了他的著作《地球理论》前两卷。在第二卷的总结中他说:“为了达到这一目标,下一步我将检验该理论矿物学等方面的论据。”但他并未能在逝世(1797年)前出版他计划中的第三卷。直到1899年,地质学会出版了《地球理论》第三卷,由 A.Geikie。编辑并编了索引。c。 展开更多
关键词 板块构造 造山带 地壳
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板块构造贯穿太古宙的地质证据:来自太古宙古板块边界的记录
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作者 王璐 钟亚婷 +6 位作者 彭松柏 Kusky T.M. windley B.F. Polat A. 《地球科学》 EI CAS CSCD 北大核心 2019年第1期36-36,共1页
'板块构造何时启动'是当今地球科学领域最重大科学问题之一.不同领域学者基于地质学、地球化学、数值模拟和纯粹猜想等多方证据及约束条件提出多种理论假说.近期,针对这一重大科学问题和热点话题,Timothy M.Kusky等3位长期从事... '板块构造何时启动'是当今地球科学领域最重大科学问题之一.不同领域学者基于地质学、地球化学、数值模拟和纯粹猜想等多方证据及约束条件提出多种理论假说.近期,针对这一重大科学问题和热点话题,Timothy M.Kusky等3位长期从事全球大地构造,尤其是前寒武纪大地构造研究的学者根据多年在全球不同时代克拉通、汇聚板块边界和造山带的研究和地质实例,在《Journal of Earth Science》发表了题为“板块构造贯穿太古宙的地质证据:来自太古宙古板块边界的记录”的特邀综述文章. 展开更多
关键词 板块构造 板块边界 太古宙
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