Triassic to Cenozoic evolution of the NW Australian continental margin and the birth of the Indian Ocean (preliminary results of ODP Legs 122 and 123)     

Dr. Ulrich von Rad  Dr. Jürgen Thurow  Bilal U. Haq  Felix Gradstein  John Ludden  the ODP Leg / shipboard scientific parties 《International Journal of Earth Sciences》1989,78(3):1189-1210

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1947年青海达日7(3/4)级地震构造的遥感影像特征     

叶世强  张启富 《高原地震》1992,(2)

通过对陆地卫星MSS磁带做不同计算处理表明:比值负变换—比值增强—彩色级上色所产生的图像对研究1947年青海达日7(3/4)级地震构造具有良好效果。不同时相陆地卫星影像均确定了该区北西西向线性构造的主导作用,同时计算结果明显地反映出达日县桑日麻盆地存在近东西向隐覆断裂;结合航磁资料分析,平顶山环形影象为一巨大隐伏岩浆岩体的反映,据此推断出达日地震构造及宏观震中位置,并得到实地考察的验证。  相似文献   

中国地震代表团访问哈萨克斯坦共和国概况     

The Seismological Delegation of SSB to the Republic of Kazakhstan 《国际地震动态》1993,(5):9-14

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第27届IASPEI大会概况及其主要专题讨论会和研讨会内容汇编     

Members of the SSB Delegation 《国际地震动态》1994,(6)

国际地震学与地球内部物理学协会（ＬＡＳＰＥＩ）第２７届大会于１９９４年元月１０－２１日在新西兰首都惠灵顿的惠灵顿维多利亚大学举行。来自４２个国家的４８３位科学家参加了这次大会。国家地震局派出了以副局长陈为团长的１３人代表团出席会议。本届大会共安排了２７个学术报告会和研讨会，会上宣读论文和报告３９９篇，张贴展示论文约１６０篇。本届ＩＡＳＰＥＩ大会的学术报告会和研讨会涉及广泛的地震学和地球内部物理学研究的前沿问题，内容包括：波在非均匀介质中的传播；地震危险性与地震危害；亚太地区的沉积盆地及其构造背景；地球深部间断面的构造形态和动力学；地震预测；地震层析成像和地幔动力学；俯冲带和弧后盆地；地热在下地壳、岩石学与流变学等方面之作用；区域地震的定位和定量化；毫赫与毫微赫地震学；脊区的地震学详细研究；太平洋的地震和海啸危险性；大小尺度的各向异性；全球地震观测技术的改进；地震的震源模拟和断层力学；诱发地震；非线性地震学；地震运动的地面地质效应；空间大地测量学和实时构造地质学；热流和热液循环；宽频带地震学和震源，等等。  相似文献   

MICROSTRUCTURES OF SOME CHINESE ANTHRACITE     

謝家榮 《地质学报》1933,(1)

1. Previous works on microscopy of anthracite. The existing method of coal petrography seems to be well adaptableonly to bituminous or lignitic coals; in the case of anthracite,because of itsextreme opacity to light and resistency to most chemical solvent  相似文献   

NOTES ON A FOSSIL FISH FROM SHANSI     

張春霖 《地质学报》1933,(1)

The fossil fish described in this short paper was collected from Taiku,Shansi province.It is a very common species,Carassius auratus Linnaeus ofCyprinidae.The living form is widely distributed in China.I am very much  相似文献   

THE NEW PETROLOGY     

CHARLES P.BERKEY 《地质学报》1922,1(Z1):4-11

I suppose that one is not far wrong in saying that Petrology is thescience of rocks.But we have not made ourselves very clear by saying it.To the average student of the subject.who must judge from what he is taught,  相似文献   

Reflections on Twenty Years'' Experience     

J. S. LEE Chairman at the Jubilee Meeting for the Twentieth Anniversary of the Geological Society of China 《地质学报》1942,(Z1):21-47

正 When I was called to deliver an address to this commemorable gathering I made some effort, following, the usual practice, in the choice of a suitable subject. Before, however, I could settle down seriously on geological problems I found it difficult to resist certain distractions that arise from the development of scientific.  相似文献   

Wave Attenuation and Friction Coefficient on the Coral-Reef Flat     

朱良生黎满球  张洪生隋世峰 《中国海洋工程》2004,18(1):129-136

Several sets of S4 direction-wave-current-tide meters have been deployed on the coral-reef fiat of Yongshu Reef in the sea area of Nansha Islands. Based on the observational sea wave data, the attenuation characteristics of the waves propagating on the coral reef flat, the bottom friction coefficients and the transfer of wave energy are discussed in the paper. The results show that, in the relative depths of 0. 0613- 0.0867, the wave height attenuation per unit distance of wave propagation is 22.09 %-46.56%, with an average of 31.35 % ; the wave energy, attenuation coefficient, 33.74 %- 53.22%, with an average of 43.61%. The average of the bettom friction coefficients on the coral-reef flat is 0. 1346,which is about 10 times thai on the sand or silt bottom. In the couse of propagation on the reef flat, the waves sustain more loss in high frequency than in low frequency and the spectral energy transfers to the low frequency. These results may be used for reference in island and reef engineering.  相似文献   

Variations of Microbial Communities and the Contents and Isotopic Compositions of Total Organic Carbon and Total Nitrogen in Soil Samples during Their Preservation     

LIU Tung-Sheng 《《地质学报》英文版》2009,83(1)

Semi-sealed preservation of soil samples at different moisture of 4% and 23%,respectively, was simulated to observe the variations of soil microbial communities and determine the contents and isotopic compositions of the total organic carbon and total nitrogen on the 7th and 30th day, respectively.The results show that during preservation,the quantity of microbial communities tended to increase first and then decrease,with a wider variation range at higher moisture (23%).At the moisture content of 23%,th...  相似文献