电子自旋共振法年龄测定研究

电子自旋共振(ESR)法适用于第四纪样品的年龄测定.本文报道近2年来作者等对鹿角、丽蚌、石筍、黄土、珊瑚和贝壳样品的年龄测定,其结果与地层、TL和¹⁴C年龄相符.预示ESR法将会成为第四纪年代学研究的有力工具.     

Mantle plumes and their record in Earth history

In recent years, the study of mantle plumeshas become a “hot spot” in earth sciences;enormous papers and data have been published, and many mantle plume-related questions have arisen: Did mantle plumes in the Precambrian behave the same way as they do today? What are the roles of plumes in the evolution of the earth? What are the effects of mantle plumes on global changes and metallogenesis? These issues are frequently encountered and hotly debated in a wide range of earth science fields such as tectonics geochemistry, geophysics, metallogenesis,     

地形作用下有限振幅Rossby波的稳定性分析

本文用微分方程定性理论方法分析了地形对有限振幅Rossby波的稳定性影响。结果表明:地形北坡有利于波动出现不稳定,南坡使波动稳定;西坡使导式波动不稳定但使曳式波动稳定,东坡使导式波动稳定但使曳式波动不稳定。     

On the transplantation and cultivation ofKappaphycus alvarezii in China

A 2-year study onKappaphycus alvarezii (Doty) Doty introduced to Hainan Island from the Philippines in 1985 showed promising results. The average daily growth in weight reached 10% at a favourable temperature of about 26°C. Experimental results showed that timely cutting of the plant was an effective way to obtain new cuttings for cultivation and accelerate growth. New cuttings 0.05 kg in weight are suggested to be used as “seeds” and the old plant should be harvested. At present, artificial cultivation with a type of underwater raft applicable in places where there is strong wind will expand cultivation to more regions in Hainan Province. This paper was originally published in Chinese inOceanologia et Limnologia Sinica 19(5): 410–418, 1988. The plant under discussion wasEucheuma alvarezii Doty which was previously calledE. striatum in the article, and which now becomesKappaphycus alvarezii (Doty) Doty. To the original title, “in China” was added. Only the essence of the original article was presented.     

庐山羊角岭红色泥砾泥石流成因质疑——与施雅风、邓养鑫商榷

作者根据庐山羊角岭红色泥砾的岩性特征,从地形和堆积物的宏观和微观特征进行分析研究,得出庐山有第四纪冰川。     

信息的不可修改性与当代科学某些问题

本文指出了"信息确定性"所涉及的信息的不可 修改性、信息"保真性"是认识观念的重大变革。 以取消数量稳定性限制条件,得出了非线性不稳 定具有特殊性信息及其周期性,并可解释翁文波 的"可公度"法是运用了特殊性信息的特殊规律, 在物质演化问题上不能将数量的一般规律拓广至 特殊性信息中;由此涉及了当代科学没有解决物 质演化的"时间"、特殊性、非惯性系及其数量分 析伪造信息等问题。信息的客观存在性和不可修 改性,已实质上表明了将近代的"信息科学"的 信息分析等同于当代科学的数量处理是认识上的 误解。即"信息"不能等同于"数量"。     

Influencing domain of peripheral sources in the urban heavy pollution process of Beijing

Multiple cities in a diveloped economic area may consist of a city cluster,and the difusion and mixing of its pollutants result in the effect of pollutants plume between cities and the large-scale regional pollution diffusion phenomenon.The distant transfer and diffusion of pollutants occurs when massive aerosols are affected by the dynamic porcess of large-scale circulations.Research suggesten that the life span of aerosol particles whose diameters are about 1 um is the longest.The longevity …     

Discovery of double-peaking potassic volcanic rocks in Langshan Group of the Tanyaokou hydrothermal-sedimentary deposit,Inner Mongolia,and its indicating significance

Since the mid-1980s,Tanyaokou large Zn-Cu-Fe sulfides deposit,located at the southwest end of Langshan-Zhaertaishan-Bayan Obo Mesoproterozoic metallogenic belt in the west section of the northern margin of the North China Platform[1?9](Fig.1),has been confirmed to be submarine volcanic exhalative-sedimentary metamorphosed deposit hosted in the miogeosynclinal mud-carbonaceous formation of the Langshan Group(LG)[1],or submarine volcanic exha-lative-deposition-altered deposit[2]or stratabo…     

OH超脉泽源的模型与统计分析

本文提出OH超脉泽源的一个具体模型,在该模型中OH超脉泽源由非饱和的球型子源组成.在此估算出超脉泽星系致密射电核的尺度和连续谱亮温度,以及OH源距星系核的最小非饱和距离.计算表明,OH超脉泽源所包含的子源数目可能相当大.R_H～log ρ_(25μm)/ρ_(60μm)图、log L_(OH)/L_(IR)～log ρ_(25μm)/ρ_(60μm)图和其它结果显示,有一部分OH超脉泽源很可能是弱饱和的,本文对此作了解释.