台湾海峡西岸及台湾岛的现代升降运动

台湾海峡西岸及台湾岛的现代升降运动,目前正处于以上升为主兼有局部下降的活动阶段。并以升降幅度大、升降速率快、断块或褶皱断裂构造升降差异显著为其基本特征。其百年内升降幅度最大值可达6～7m,升降速率一般为2～3cm/y(最大值可达10cm/y),堪称世界之冠。     

Magnetic spherules from Pleistocene sediments in Alberta,Canada

Abstract— Magnetic spherules have recently been found in Pleistocene sediments in Alberta, Canada. The spherules are composed of magnetite (FeFe₂O₄) and wüstite (Fe_1-xO); some have metallic cores composed of pure α-Fe metal. Other metal cores contain from 0.1% to 0.88% Ni by weight. Comparison of morphology, internal structure and chemical and mineralogical compositions with those of spherules of known origin suggests that the Alberta spherules are of extraterrestrial origin.     

The angular momentum loss of low-mass close binary systems

The detailed evolution of low-mass main-sequence stars (M < 1M ) with a compact companion is studied. For angular momentum loss associated with magnetic braking it is found that about 10^–11–10^–12 M yr^–1 in stellar wind loss would be required. This wind is 10²–10³ times stronger than the solar wind, so we believe here magnetic stellar wind is insufficient. It is well known that there is mass outflow in low-mass close binary systems. We believe here that these outflows are centrifugal driven winds from the outer parts of the accretion disks. The winds extract angular momentum from these systems and therefore drive secular evolution. Disk winds are preferred to winds from the secondary, because of the lower disk surface gravity.     

鲁南荆泉水源地水环境保护探讨

荆泉水源地是鲁南滕州市唯一城市集中供水水源地,其含水层岩性为寒武、奥陶系碳酸盐岩,位于一个独立的地下水含水系统之中,水量丰富,水质良好。由于城市人口增加和工业发展,对荆泉水源地地下水开采量逐年增加,加之上游地区工业污水的超标排放,使该水源地水环境变差。为了保护好荆泉水源地地下水环境,应通过建立水质保护区、合理调配水资源、对荆河河道进行整治等多种综合治理措施,以确保荆泉水源地向滕州市的城市供水需求     

X-ray diffraction characteristics of Ceshui Formation coal in Lianyuan coal basin

On the basis of X-ray diffraction analysis of Ceshui Formation coal and its roof mudstone in the Lianyuan coal basin, it is concluded that telemagmatic metamorphism is the main factor leading to the metamorphism of the Ceshui Formation coal in the study region, which has a great impact on the chemical structure of the Ceshui coal series, and the dynamometamorphism is of local and secondary importance.     

涟源煤盆地测水组煤系的X射线衍射特征

通过对湘中涟源煤盆地测水组煤及其顶板泥岩的Ｘ射线衍射分析可知,区域岩浆热变质作用是湘中涟源煤盆地测水组煤系变质的主要原因,对测水组煤系化学结构影响较大,动力变质作用仅起局部和次要作用。     

Study on dynamic numerical simulation of mountain system in tibet plateau

Tibet Plateau in mountain system is becoming one of the focuses of global technique research, because its crust is marvelous thick, which is twice of the normal thickness of mountain system in lithosphere, and its rapid raise from the Quaternary.By using a finite element analysis software ABAQUS,the numeric analysis has been carried out and presented in this paper for the lithosphere stress field.It is the first time to use the displacement loading in the simulation of Tibet Plateau. During the analysis,the deformed elements are used to simulate the structure band, and friction mechanism is used to model the fracture band. The boundary conditions are given according to the boundary displacements around the Plateau. The stress and displacement distributions are obtained for the geological evolution of the plateau, which are consistent with P axial orientations of the seismic origin mechanism and the measures principle stress orientations. The analysis is also given for the dynamic lithosphere evolution of the Mountain System in the Tibet Plateau.     

The modern change and evolution tendency of sand coast in the eastern area of Liaodong Gulf

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鱼鲜酱油稀发酵中的糖量变化及其对曲霉活动的影响

在鱼鲜酱油的酿制中 ,研究鱼鲜酱油稀发酵中的糖量变化及其与曲霉生长活动的关系 ,对比了在发酵后期向发酵液中加入与不加入糖化液对曲霉生长活动和发酵效果的影响。结果表明 ,鱼鲜酱油稀发酵过程中仅消耗了以粗淀粉形式出现的糖量 ,在 35℃下 ,开始发酵的第 1天至第 4天为曲霉生长繁殖的高峰期 ,到第 1 3天曲霉活细胞数达到最大值 ,此后则开始衰退。第4天至第 1 0天为糖量消耗高峰期。而在发酵后期 (第 1 9天 )添加糖化液 ,在 32℃下发酵 ,可促使曲霉细胞二次活动高潮的形成 ,并使最终产品的无盐可溶性固形物、全氮及各项感官指标均优于未加糖组。     

著名藻类学家饶钦止教授

FAMOUSALGOLOGIST──PROFESSORRAOQINZHI饶钦止教授，1900年2月出生于四川重庆市；1920年成都高等师范学校毕业，1922年北京师范大学生物系研究生科毕业；1932－1935年先后获得美国密执安大学（UinversityofMichgan）、的文学硕士和哲学博士学位，并获得3种金钥匙奖章和奖状。在此期间，又曾在伍兹霍尔海洋生物学实验室（MarineBiologicalLaboratory,WoodsHole）、华盛顿大学（Universityofwashington）的海洋学实验室、哈勃肯斯海洋实验站（HopkinsMarinestation、斯克里普斯海洋学研究所（ScrippsInstituteofOceanogr…