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315篇 您的检索式:作者名="Cawood"
    题名 作者 年代 出处 被引量
1山西五台山-恒山地区晚太古-早元古代若干关键地质问题的再认识:单颗粒锆石离子探针质谱年龄提出的地质制约显示文摘大量准确度很高的单颗粒锆石迅谱 (SHRIMP)年代学数据表明 ,五台山 -恒山绿岩带形成于 2 50 0 Ma之前 ,五台山 -恒山绿岩带形成后即与较老的阜平块体拼合。因此 ,该过程中有大量火山 ,深成活动及变质作用 ,是一次重要的造山运动。在 1 80 0 Ma之前 ,本区还经历了一次明显的构造热事件 ,主要表现为在地壳较深水平上大规模的冲断作用 ,使原来为不同地壳水平的块体处于同一地壳水平。本文还对原五台群下部层位板峪口组和金岗库组的归属及铁堡不整合面提出了新的看法。王凯怡 郝杰 Simon Wilde Peter Cawood 2000地质科学2000,35,2:76
2Petrogenesis and tectonic implications of Early Cretaceous andesitic-dacitic rocks,western Qinling(Central China):Geochronological and geochemical constraints显示文摘40Ar/39Ar and zircon U-Pb geochronological and whole-rock geochemical analyses for the Laozanggou intermediate-acidic volcanic rocks from the western Qinling orogenic belt,Central China,constrain their petrogenesis and the nature of the Late Mesozoic lithospheric mantle.These volcanic rocks yield hornblende or whole-rock 40Ar/39Ar plateau ages of 128.3-129.7 Ma and zircon U-Pb age of131.3±1.3 Ma.They exhibit SiO2 of 56.86-66.86 wt.%,K2 O of 0.99-2.46 wt.%and MgO of 1.03-4.47 wt.%,with Mg#of 42-56.They are characterized by arc-like geochemical signatures with significant enrichment in LILE and LREE and depletion in HFSE.All the samples have enriched Sr-Nd isotopic compositions with initial 87Sr/86Sr ratios ranging from 0.7112 to 0.7149 andεNd(t)values from 10.2 to 6.3.Such geochemical signatures suggest that these volcanic rocks were derived from enriched lithospherederived magma followed by the assimilation and fractional crystallization(AFC)process.The generation of the enriched lithospheric mantle is likely related to the modification of sediment-derived fluid in response to the Triassic subduction/collision event in Qinling orogenic belt.The early Cretaceous detachment of the lithospheric root provides a reasonable mechanism for understanding the petrogenesis of the Laozanggou volcanic sequence in the western Qinling orogenic belt.Feifei Zhang Peter A. Cawood Yunpeng Dong Yuejun Wang 2019Geoscience Frontiers2019,10,4:3
3Metamorphism of basement rocks in the Central Zone of the North China Craton: Implications for Paleoproterozoic tectonic evolution显示文摘 CAWOOD P A WILDE S A 2000Precambrian Res2000,103,:1
4Evidence of deteriorating semen quality in the United Kingdom:birth cohort study in 577 men in Scotland over 11 years显示文摘Irvine S Cawood E Richardson D 1996BMJ1996,312,7029:1
5Thermal evolution of the Archaean basement rocks from the eastern part of the North China Craton and its International Geology Review, bearing on tectonic setting 显示文摘Zhao G C Wilde S A Cawood P A Lu L Z 199840: 706-7211998,40,:1
6A classification o{ the edentulous jaws显示文摘Cawood J I Howell RA 1988IntemationalJoumal of Oral and Maxillofacial Surgery1988,17,4:1
7Source of the Dalradi-an Supergroup constrained by U-Pb dating of detrital zircon and im-plications for the East Laurentian margin显示文摘Cawood P A Nemchin A A Smith M 2003Journal of the Geologi-cal Society2003,160,2:1
8Record of Tethyan oceanclosure and Indosinian collision along the Ailaoshan suture zone(SW China)显示文摘LiuH C Wang Y J Cawood P A 2015Gondwana Research2015,27,3:1
9Archean blocks and their boundaries in the North China Craton: Lithological,geochemical,structural and p-T path constraints and tectonic evolution显示文摘 CAWOOD P A WILDE S A 2001Precambrian Res2001,107,:1
10Archean blocks and their boundaries in the North China Craton: lithological, geochemical, structural and P-T path constraints and tectonic evolution 显示文摘Zhao G C Wilde SA Cawood P A Sun M 2001Precambrian Research2001,107,:1
11Monitoring of tubingen endosseous dental implants by glycosaminoglycans analysis of gingival crevicular fluid显示文摘Last KS Cawood JI Howell RA 1991Int J Oral Maxillofac Implants1991,61,:1
12Linking South China to northernAustralia and India on the margin of Gondwana: Constraints fromdetrital zircon U- Pb and Hf isotopes in Cambrian strata 显示文摘Xu Y Cawood P A Du Y 2013Tectonics2013,32,6:1
13The South African mineral and petroleum resources royalty act-Background and fundamental principles 显示文摘Cawood F T 2010Resources Policy2010,35,3:1
14Geology and timing of mineralization at the Cangshang gold deposit, north-western Jiaodong Peninsula, China显示文摘Xiao’ou Zhang Peter A. Cawood Simon A. Wilde Ruqi Liu Hailin Song Wen Li Lawrence W. Snee 2003Mineralium Deposita2003,,2:1
15A change in the geodynamics of continental growth 3 billion years ago 显示文摘Dhuime B Hawkesworth C J Cawood P A 2012Science2012,335,:1
16Early Paleozoic orogenesisalong Gondwana's northern margin constrained by provenancedata from South China 显示文摘Xu Y Cawood P A Du Y 2014Tectonophysics2014,636,:1
17The development of nuclear vacuoles during meiosis in plants显示文摘SHEFFIELD E CAWOOD A H BELL P R 1979Planta1979,146,5:1
18Evolution of the Appalachian Laurentian margin: hthoprobe results in western Newfoundland显示文摘Waldron J W F Anderson S D Cawood P A 1998Canadian Journal of Earth Sciences1998,35,11:1
19Metamorphism of basement rocks in the Central Zone of the North China Craton: implication for Paleoproterozoic tectonic evolution显示文摘ZHAO G C CAWOOD P A WILDE S A 2000Precamb Res2000,107,:1
20Phenomena in a sounding tube显示文摘Patterson H Cawood W 1931Nature1931,,127:1
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