在地勘测量中应用RTK技术

传统光学仪器测量需要测量点之间通视，数据需要手工记录和进行繁琐的后处理。RTK技术将GPS接收机、现场手持计算机和无线电数据链相结合，实时提供cm级测量精度，可大大提高工作效率，减轻劳动强度。它由基准站、流动站和数据处理系统组成。在基准站安置GPS接收机，对GPS卫星进行连续观测，将观测数据通过无线电传输设备实时地发送给用户观测站。GPS接收机在接收卫星信号的同时接收基准站传输的观测数据，实时地计算并显示用户站的三维坐标及其精度。RTK技术可以替代常规测量为地质勘查工作快速提供可靠、高精度的测量成果。     

滑坡可视化技术研究

论述了可视化技术在滑坡研究中的应用,阐述了滑坡的三维地质模型和数字地面模型的构建和可视化方法,提出了今后研究过程中尚待解决的问题。     

Shear wave splitting beneath South Kamchatka during the 3-year period associated with the 1997 Kronotsky Earthquake

Shear wave splitting measurements in South Kamchatka during the 3-year period (1996–1998) in which the Kronotsky Earthquake (M=7.7, December 5, 1997) occurred are used to determine anisotropic parameters of the subduction zone and shear wave splitting variations with time. The local small seismic events recorded at the Petropavlovskaya IRIS station (PET) were analyzed. The dominant azimuths of the fast shear wave polarizations for the 3-year period are defined within N95±15°E, which are consistent with the general Pacific Plate motion direction. Modeling of fast shear wave polarizations shows that HTI model with the symmetry axis oriented along N15°E±10° fit well the observed data for events the focal depths of which are less than 80 km. For the greater depths, the orthorhombic symmetry of medium is not excluded. The anisotropy coefficient increases generally with depth from 1–2% in the crust to 4–7.5% in the subducting plate. Variations in time delays show a general increase up to 10–15 ms/km during 1996–1997 before the large crustal earthquake series (M≈5.5–7) in the Avacha Bay and before the Kronotsky Earthquake. Analysis of fast S-wave azimuths of mantle events reveals a temporal cyclic variation. The most regular variations are observed for fast azimuths of deep events with a period of about 172 days over the 3-year period. The fast polarizations of crustal events behave comparatively stable. It is assumed that the major instabilities in stress state are localized in the descending slab and influenced the upper mantle and comparatively stable crust.     

硬石膏的高温相变和结构研究

本文研究了煅烧硬石膏的结构及硬石膏的高温相变。发现不同温度煅烧的硬石膏晶体结构及显微形态是相同的,仅存在不同程度的晶格畸变和晶粒尺寸的差异。硬石膏的高温相变是可逆相变,二者的转变温度略有差异。     

东坪金矿床上水泉花岗岩单颗粒锆石U—Pb年龄及其地质意义

本文对与东坪金矿有密切空间关系的上水泉花岗岩进行了单颗粒锆石U－Pb同位素定年,结果为135．5±0．4Ma,与东坪金矿的成矿年龄有几千万年的时差,表明该岩体与东坪金矿无成因联系,两者分别是不同地质作用的产物。研究结果对目前流行的把金矿与花岗岩密切的空间关系等同于成因联系的传统认识提出异议。     

EM 对稻田甲烷排放抑制作用的初步研究

该文主要讨论采用有效微生物菌剂（Effective Microorganisms）抑制稻田甲烷气体排放的试验结果。试验表明:第一年中抑制作用明显,平均在59%以上,并且使负通量（即稻田成为吸收大气中CH4的汇）的出现频率增加。这可能是EM中含有的光合细菌作用所致。试验还表明使用EM时可以取代化肥使产量增加。     

某工程大型地下厂房围岩损伤特征分析

依据现场工程岩体节理的统计分析，应用损伤力学的研究方法，计算地下厂房各个岩体结构分区的损伤张量，建立应用最大主损伤值评价工程岩体质量的分析模型并应用于实践。     

某水电站右坝肩边坡的网状张裂变形

勘探发现，某水电站右坝肩边坡，除正常卸荷裂隙外，发育有大量的夹泥型破裂带。为了揭示其成因、发展趋势及对工程建设的影响，作者进行了大量的调查和分析，本文拟对所获研究成果进行介绍。     

我国首次发现的银镍黄铁矿

我国的银镍黄铁矿产于广西融水县九毛锡矿区,粒度极细,反射率为25.9(470nm),34.8(546nm),35.8(589nm),39.7(650nm)。成分中含Ag 11.12—13.26％,Ni 19.06—23.07％,Fe 31.27—35.13％,Co 0.02—0.34％,Cu 微—4.70％,S 30.87—32.99％。     

甘肃疏勒河断裂中段核废物处置库稳定性研究

本文利用遥感图像解译、地质调研和物探等技术手段，对甘肃疏勒河断裂带中段的地质特征及其稳定性进行了研究。通过研究，对疏勒河断裂带的认识有了新的进展，取得了较好的效果。