维普中文期刊产品整合服务
3篇 您的检索式:作者名="D.L.Dilcher"
    题名 作者 年代 出处 被引量
1黑龙江嘉荫地区白垩纪—第三纪界线初步观察显示文摘本文报道了黑龙江嘉荫白山头地区一条新的地层剖面及其K/T界线的初步研究。新命名的“白山头段”代表乌云组下部的早古新世地层 ,含以Tiliaephyllumtsagajanicum等为代表的达宁早期植物化石。在白山头剖面上 ,作者发现可能为白垩纪末期的凝灰岩。结合与俄罗斯布列亚盆地含K/T界线的查加扬群标准剖面的对比 。孙革 孙春林 董枝明 孙跃武 吕建生 熊宪政 周忠立 余福林 邢玉玲 全成 M.A.Akhmetiev A.R.Ashraf E.Bugdaeva D.L.Dilcher L.Golovneva K.Johnson T.Kezina T.Kodrul H.Okada 2003世界地质2003,22,1:16
2In Search of the Cretaceous-Tertiary Boundary in Heilongjiang River Area of China显示文摘Abstract A new geological section recognized in Baishantou of Jiayin, Heilongjiang Province, China, was studied preliminarily in searching for the K/T boundary. An early Paleocene florule characrerized by abundant Tiliaephyllum tsagajanicum leaves and its associated plants, was collected from the Baishantou Member (new member representing the lower part of the Paleocene Wuyun Formation) overlying the possible K/T boundary. A tuff bed was found from the upper part of the Furao Formation (uppermost Cretaceous) in this section. The new findings imply that the K/T boundary is probable lying in the interval between the base of the Baishantou Member and the tuff bed, based on the correlation of the present strata with the stratotype of the Tsagajan Group spanning the K/T boundary in 'Belaya Gara' of the Bureya Basin, Russia. The early Paleocene florule from the Baishantou Member and the early-middle Maastrichtian dinosaurs found from the Yuliangzi Formation underlying the Furao Formation suggest that the Baishantou section is more promising for searching for the K/T boundary in this area. Further studies of the section is needed, integrating paleontological, biostratigraphic, geochemical, paleomagnetic, and sedimentary research would benefit our understanding the mass extinction event and biotic recovery in the Heilongjiang River area, China, and even all of northeast Asia during the K/T boundary interval.Sun G. M.Akhmetiev Dong Z.M. A.R.Ashraf Sun Y.W. E.Bugdaeva D.L.Dilcher L.Golovneva I.Harding K.Johnson T.Kezina T.Kodrul LU J.S. V.Markevich H.Nishida H.Okada Park S.O. Sun C.L. Xiong X.Z. Xing Y.L. Zhou Z.L. 2002Global Geology2002,7,2:13
3迄今世界最早被子植物花序化石的首次发现显示文摘首次报道迄今已知世界最早的被子植物花序化石———Xingxueinaheilongjiangensisgen.etsp.nov.。该花序化石产于我国黑龙江鸡西早白垩世城子河组。花序由数十枚小花组成,其花粉具典型的被子植物特征,无明确的萌发口器。根据其所在层位下伏海相层化石佐证,以及与以色列等地早期被子植物花粉化石的对比等,该花序的地质时代可能为早白垩世Hauterivian晚期,或Hauterivian晚期至Baremian早期。文中还讨论了此花序及其花粉化石的发现在研究全球被子植物起源及早期演化等方面的重要意义。孙革 D.L.Dilcher 1997古生物学报1997,36,2:5
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费