现实空间、思维空间、虚拟空间——关于人类生存空间的哲学思考

基于空间的基本概念以及现代高新技术对人类生存空间的拓展，提出了“三类空间划分”的思想体系；分析了它们各自的特点及其相互关系；阐述了该思想体系的意义。     

莫里青断陷西部双阳组（始新世）的浊积扇沉积特征

莫里青断陷西部在始新世双阳组沉积时期发育ＮＥ，ＳＷ和ＮＷ方向三个浊积扇体，其中ＮＥ向浊积扇体仅发育于湖平面上升初期（双一段沉积时期），ＳＷ向浊积扇体在湖平面上升初期、上升早期和快速上升时期（双一，双二和双三段沉积时期）始终存在，而ＮＷ向浊积扇体形成于湖平面上升早期（双二段沉积时期），并一直持续到湖平面快速上升时期（双三段沉积时期）。目前在区内仅钻遇中扇水道、中扇过渡带和外扇沉积。     

SMA-MR复合型阻尼器

利用形状记忆合金超弹性、形状记忆特性和MR液的材料特性，提出了SMA-MR复合阻尼器，建立了阻尼器的理论模型。通过输入正弦波得到小震、大震时相应的滞回曲线，并对一单层框架进行输入El Centro地震波下的减震效果分析，比较了SMA-MR阻尼器、仅有SMA和仅有MR作用下的减震效果。结果表明，所设计的SMA-MR阻尼器具有卓越的阻尼性能，对大震、小震的控制实现了自适应的智能性。     

由一组显著地震活动看地震应力场的"聚""散"过程

2002年8月21日至10月20日，华北地区发生了一组显著地震活动。通过该组显著地震活动的时空分布特点，分析了华北地区这一轮地震应力场的“聚”“散”过程，讨论了华北块体北缘地震带及与之紧邻的内蒙古西乌珠穆沁旗地震区未来的活动趋势，所得认识对今后该区的震情动态跟踪监视、趋势估计乃至地震短期预测判断具有一定的现实意义。     

Thermodynamic conditions of framework grain dissolution of clastic rocks and its application in Kela 2 gas field

Feldspar and clastic debris are the most important constituent framework grains of sedimentary clastic rocks and their chemical dissolution plays an essential role in the formation and evolution of the secondary pore in the reservoir rocks. On the basis of thermodynamic phase equilibrium, this study investigates the chemical equilibrium relationships between fluid and various plagioclase and K-feldspar in diagenesis of the sediments, particularly, the impact of temperature and fluid compositions (pH, activity of K+, Na+, Ca2+ and so on) on precipitation and dissolution equilibria of feldspars. Feldspar is extremely easily dissolved in the acid pore water with a low salinity when temperature decreases. The dissolution of anorthite end-member of plagioclase is related to the Ca content of the mineral and the fluid, higher Ca either in the mineral or in the fluid, easier dissolution of the feldspar. Moreover, the dissolution of albite end-member of plagioclase is related to Na of both the mineral and fluid,     

A precise monitoring of snow surface height in the region of Lambert Glacier basin-Amery Ice Shelf,East Antarctica

The net surface snow accumulation on the Antarctic ice sheet is determined by a combination of precipitation, sublimation and wind redistribution. We present a one-year record of hourly snow-height measurements at LGB69 (70°50'S, 77°04'E, 1850 m a.s.l.). east side of Lambert Glacier basin (LGB), and 4 year record at G3 (70°53'S, 69°52'E, 84 m a.s.l.), Amery Ice Shelf (AIS). The measurements were made with ultrasonic sensors mounted on automatic weather stations installed at two sites. The snow accumulation at LGB69 is approximately 70 cm. Throughout the winter, between April and September, there was little change in surface snow height (SSH) at the two sites. The negative SSH change is due to densification at LGB69, and is due to both ablation and densification at G3. The strongest accumulation at two sites occurred during the period between October and March (accounting for 101.6% at LGB69), with four episodic increasing events occurring during 2002 for LGB69, and eight events during 1999-2002 for G     

Changes in the spatial scale of Beijing UHI and urban development

The seasonal and interannual variations of Beijing urban heat island (UHI) are investigated in this paper using the temperature data from 1960 to 2000 at 20 meteorological stations in the Beijing region, and then the relationship between the intensity and spatial scale of UHI and Beijing urbanization indices is analyzed and discussed. Main conclusions are the followings. First, Beijing UHI shows obvious seasonal variations, and it is strongest in winter, next in spring and autumn, and least in summer. The seasonal variation of the UHI mainly occurs in the urban area. The UHI intensity at the center of Beijing is more than 0.8℃ in winter, and only 0.5℃ in summer. Second, the intensity of Beijing HUI exhibits a clear interannual warming trend with its mean growth rate (MGR) being 0.3088℃/10 a. The MGR of HUI is largest in winter, next in spring and autumn, and least in summer, and the urban temperature increase makes a major contribution to the growth of HUI intensity. Third, since the Reform and Opening, the urbanization indices have grown several ten times or even one hundred times, the intensity of HUI has increased dramatically, and its spatial scale also expanded distinctively along with the expansion of urban architectural complexes. Fourth, the interannual variation of urbanization indices is very similar with that of HUI intensity, and their linear correlation coefficients are significant at a more than 0.001 confidence level.     

马槽滩磷矿区的矿体形态特征及合理勘查工程间距

马槽滩磷矿区矿体形态复杂,底板起伏不定,多年来勘查工程间距不断改变,因此用多种方法讨论了合理工程间距.探采对比和数理统计学方法求得控制资源量的合理工程间距分别为200m×150m和200m×100m;控制半变异函数的变程亦为200m×100m,均与现行规范相吻合。但沿走向和倾向的变异相同,因此建议用正方形网格进行勘查更为合理,间距为150m×150m。     

8.4 ka以来纳木错湖芯介形类组合的环境变化意义

对青藏高原中南部纳木错长332cm的NMLC1孔湖芯研究发现,沉积物的介形类动物群计有6属15种。介形类属种生态特征和组合变化分析表明这些介形类对环境条件具有敏感性,其组合能够很好地反映过去环境变化的特征。结果表明,8．4ka以来具有三个不同的环境变化时期：早期在8400～6800aBP,湖泊由浅向深发展,环境具有相对冷湿的特征：中期在6800～2500aBP,湖泊深度逐渐加大,环境经历了暖湿-冷湿-冷干的变化．其中由冷湿向冷干的转化奠定了纳木错现今环境条件的基础：晚期在2500--9aBP,湖泊深度继续增加,这个时期的较早阶段,继续保持了前一时期的冷干特点,但湖水盐度可能开始增加．较晚阶段的冷干化加剧,陆面流水的活跃性大大降低。研究发现,纳木错NMLC1钻孔介形类黑色壳体的高峰值与介形类的最大生产量相一致,并且与沉积水动力条件增强相适应．指示了这些黑壳的产生与介形类的大量繁殖处于同一阶段．并且主要为异地搬运为主。钻孔中出现大量Candona幼虫壳体．其原因可能与沉积环境的水动力条件迅速改变有关。     

基于GIS-SDA的居民点空间分布研究

空间数据分析(SDA)与GIS相结合是研究地理现象空间分布规律的重要方法。借助1994年和2004年两期RS图像,得到徐州市居民点空间分布数据,运用GIS-SDA方法研究徐州市1994年和2004年的居民点空间分布模式,并总结了11年间居民点空间分布的动态演变规律。通过最近邻距离分析(运用R统计量)得出徐州市居民点空间分布总体上呈现集聚趋势,且2004年的集聚程度比1994年低;通过计算居民点空间分布的K函数值,发现随着研究尺度的变化,1994年和2004年的居民点空间分布集聚程度均出现先增后降过程。运用核函数与泰森多边形法计算两个年份的居民点密度分布,核函数法能够从总体上反映徐州市居民点密度空间分布的地域差异,而泰森多边形法对居民点密度空间分布的细部差异较敏感。