Gold Mineralization in the Eastern Tannu-Ola Ore District of the Altai-Sayan Folded Area (Russia)

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SUBDIVISIONS OF THE JURASSIC, CRETACEOUS AND TERTIARY COAL-BEARING STRATA OF RUSSIAN MARITIME AND AMUR PROVINCES, AND OF SAKHALIN ISLAND

As is well known, the first information on the coal-bearing strata of the Russian Far East and their characteristic fossil flora was given by the acadeinician Prof. Schmidt (2), and his fellow-traveller Glehn (13), to Lopatin, Bogoluibsky (9), A. Koeppen (26) and others. However the     

中国北方黄土高原地区黄土的微结构模型(详细摘要)

试样为取自中国北方黄土高原标准剖面^①中的马兰(Q₃)、离石(Q₂)、午城(Q₁)以及次生的洪积-冲积(Q₄)黄土.各方面成功的配合与多手段的综合性研究使我们能对黄土的微结构模型有了概念,能分析结构特征对黄土某些性质的影响,并可用来解释已提出的有关成因的一些看法.     

云南地区震源破裂长度与震级的经验关系

从云南地区１９６５ 年有台网记录以来主震震级 Ｍ Ｓ≥４ ．９ 的地震序列中选取５１ 个序列,根据直接余震的平面分布统计得到震源的破裂长度,用最小二乘线性回归模型得到了３ 种震级范围的破裂长度与主震震级的经验关系式     

1998年11月19日云南宁蒗6.2级地震前地震活动性特征

１９９８ 年１１ 月１９ 日在云南省宁蒗发生了一次 Ｍ６２ 级强烈地震。该次地震前, 震中及邻区地震活动明显增强, 累计频度和应变能释放随时间从线性缓慢增加变为非线性快速增加, 出现孕震空区、多项地震活动参数异常。此外, 地震活动性诸多参数在地震活动处于线性缓慢变化的时间段内, 在空间分布上表现为随机的现象; 在地震活动处于非线性快速变化的时间段内, 这些参数的空间分布表现出向未来震中收缩、集中的明显特征。     

Diurnal SST warming in the Bay of Biscay: satellite measurements and model prediction

INTRODUCTIONIt has long been recognized that a diurnal thermal cycle occurs in the upper layer of the ocean(Stommel et al., 1969; Price and Weller, 1986). Interest in the subject has revived in recentyears due to the importance of resolving the diurnal cycle for correctly coupling the ocean and atmosphere (Lukas, 1991 ). While the study of the diurnal cycle is of intrinsic scientific interest, italso offers the benefit to remote sensing scientists of identifying the bias caused by the di…