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关于奥陶纪生物大辐射事件（GOBE）的成因，目前存在两种观点。一种观点认为中奥陶世动物群落和气候的变化与一颗直径约150 km的L型球粒陨石母体（LCPB）的裂解有关。而且，这次裂解也是地球过去30亿年来所记录的最大一次陨石裂解事件。中奥陶世沉积物中普遍存在的陨石颗粒（直径1-20 cm）就是这次陨石母体裂解的证据。另一种观点是从牙形石氧同位素古温度计的推算来揭示奥陶纪全球气候表现为一个不断趋冷的...
Professor Eric Lambin，Department of Earth System Science at Stanford University（图）
Professor Eric Lambin Department of Earth System Science at Stanford University
2015/7/2
Professor Eric Lambin，Department of Earth System Science at Stanford University,Education
PhD, University of Louvain, Belgium, Sciences, Geography (1988)
M.S., University of Louvain, Belgium, Geogra...
ENHANCED TEACHING AND LEARNING IN SPATIAL SCIENCE COURSES
ertiary education curriculum transformation
2015/3/12
Educators at all levels, but particularly tertiary, are embracing techniques such as curriculum transformation, the provision of online
information and the introduction of multimedia delivery to imp...