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3篇 您的检索式:作者名="M.E.Johnson"
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1Continental island from the Upper Silurian (Ludlow) Sino-Korean plate显示文摘Recent field studies on Upper Silurian stratigraphy and paleontology in the Inner Mongolia Autonomous Region (for short Inner Mongalia) near Bater Obo (=Bateaobao) resulted in the discovery of a small continental island with fossil invertebrates preserved as encrusters (stromatoporoids and corals) attached directly to a rocky shore surface and buried by silty clay mud. The Bater island (named herein) is 610 m ×200 m in size and composed of Ordovician igneous rock (diorite). Limestone strata dating from the Ludlow Epoch (about 420 Ma) surround the island and dip away from the igneous core in a radial pattern. The encrusting fossils occur on the sheltered (south and southeast) side of the island, whereas the north side was exposed to stronger wave activity based on a basal conglomerate unit composed of diorite boulders. This is the first record of an ancient island in China and the first report worldwide of stromatoporoids as members of a rocky-shore community. The island clearly shows distinct windwardRONG Jiayu M.E.Johnson B.G.Baarli LI Wenguo SU Wenbo WANG Jian 2001Chinese Science Bulletin2001,46,3:3
2中朝板块北缘志留纪海岛的发现显示文摘在内蒙古达尔罕茂明安联合旗北部巴特敖包地区发现了志留纪的海岸带及其底栖无脊椎动物化石(层孔虫、日射与床板珊瑚等), 证实当时该地发育一个位于中朝古板块北缘大陆棚上的小海岛, 将其命名为巴特岛. 该岛的基部由奥陶纪火成岩组成, 长、短轴分别为610和200 m, 现今呈北东-南西向延伸. 志留纪罗德洛世(距今约420 Ma)的地层围绕该岛分布, 产状向四周倾伏. 巴特岛的南缘(背风)发育皮壳状生物, 栖息在火成岩顶面并被灰泥掩埋; 北缘(迎风)发育由火成岩砾石组成的底砾岩. 这是我国迄今为止首次记载的古生代海岛, 所含的岩岸层孔虫化石也为全球首次报道.戎嘉余 M.E.Johnson N.G.Baarli 李文国 苏文博 王 健 2000科学通报2000,45,20:2
3Two-dimensional inveriant manifolds and global bifurcations:Some approximation and visualization studies显示文摘M.E.Johnson M.S.Jolly I.G.Kevrekidis 0,,14:1
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