绿泥石片岩和斜长角闪岩在高温高压下的物理力学性质及其应用   总被引：5，自引：1，他引：5       下载免费PDF全文

高平  刘若新 《地震地质》1994,16(1):83-88

在高温高压下绿泥石片岩和斜长角闪岩中含水矿物的脱水作用可以引起岩石物理力学性质的异常变化。在半封闭条件下，含水矿物的脱水温度有随压力增加而降低的趋势。脱水作用可能是华北地区壳内低速高导层（体）的形成原因之一。这一低速高导层（体）同时也是低强度的软弱层（体），有利于地震在其上覆脆性岩层中的孕育与发生  相似文献   

海底热液矿化展望     

罗纳.  PA  林强 《国土资源信息化》1994,(10):36-38

  相似文献   

四川盆地五峰—龙马溪组黑色页岩有机岩石学特征研究     

刘思逸  高平  肖贤明  刘若冰  秦婧  袁桃  王旭 《现代地质》2022,36(5):1281-1291

目前五峰—龙马溪组黑色页岩中显微组分缺乏统一的分类方案,命名也较为混乱,给页岩气勘探与评价造成了困难。为此,采用全岩光片和有机地球化学(TOC、δ¹³C_org)分析等方法,对四川盆地五峰—龙马溪组黑色页岩中显微组分进行有效识别与特征总结,探讨其可能成因,并判断其有机质类型。研究结果表明:五峰—龙马溪组页岩中显微组分主要由海相镜质组、腐泥组、动物有机碎屑组和次生组组成。其中,海相镜质组由无结构镜质体组成,呈浑圆状或长条状,具有强的光反射能力,但分布并不广泛;腐泥组主要由无结构腐泥体组成,为藻类遭受热降解过程而形成的无结构且无固定形态的显微组分,在富有机质页岩中广泛分布;动物有机碎屑组主要包括笔石表皮体、几丁虫和放射虫有机碎屑体;次生组由次生沥青体组成,广泛分布在页岩基质孔隙中,呈无固定形状。五峰—龙马溪组页岩中主要发育腐泥组和次生组,其次为动物有机碎屑组和海相镜质组,其有机质类型以Ⅰ-Ⅱ₁型干酪根为主,且腐泥组和次生组含量越高,有机质类型越好,其生烃潜力越大。  相似文献   

CINRAD/SA Build 10新一代天气雷达软件系统的开发研制   总被引：5，自引：5，他引：0  

孟昭林  王红艳  陆雅萍  钟涛  高平  侯丽影 《气象科技》2005,33(5):469-473

CINRAD/SA雷达软件系统第10版（CINRAD Build 10）是北京敏视达公司为CINRAD/SA雷达系统开发研制的最新版软件系统.CINRAD Build 10软件系统对CINRAD Build 7软件系统进行了全面升级改造,CINRADBuild 7软件系统的缺陷错误得到改进,功能得到增强,特别是数据处理和气象产品生成算法全面更新为NEXRADBuild 10算法.CINRAD Build 10软件系统,无论是稳定性,还是生成气象产品的质量,以及软件的系统功能和易用性都有很大提高.  相似文献   

Stream bottom resistivity tomography to map ground water discharge   总被引：2，自引：0，他引：2  

Nyquist JE  Freyer PA  Toran L 《Ground water》2008,46(4):561-569

This study investigates the effectiveness of direct current electrical resistivity as a tool for assessing ground water/surface water interactions within streams. This research has shown that patterns of ground water discharge can be mapped at the meter scale, which is important for understanding stream water quality and ecosystem function. Underwater electrical resistivity surveys along a 107-m stream section within the Burd Run Watershed in South Central Pennsylvania identified three resistivity layers: a resistive (100 to 400 Ωm) surface layer corresponding to the streambed sediments, a conductive (20 to 100 Ωm) middle layer corresponding to residual clay sediments, and a resistive (100 to 450 Ωm) bottom layer corresponding to the carbonate bedrock. Tile probing to determine the depth to the bedrock and resistivity test box analysis of augered sediment samples confirmed these interpretations of the resistivity data. Ground water seeps occurred where the resistivity data showed that the residual clays were thinnest and bedrock was closest to the streambed. Plotting the difference in resistivity between two surveys, one conducted during low-stage and the other during high-stage stream conditions, showed changes in the conductivity of the pore fluids saturating the sediments. Under high-stream stage conditions, the top layer showed increased resistivity values for sections with surface water infiltration but showed nearly constant resistivity in sections with ground water seeps. This was expressed as difference values less than 50 Ωm in the area of the seeps and greater than 50 Ωm change for the streambed sediments saturated by surface water. Thus, electrical resistivity aided in characterizing ground water discharge zones by detecting variations in subsurface resistivity under high- and low-stream stage conditions as well as mapping subsurface heterogeneities that promote these exchanges.  相似文献   

PCD在钻进业的应用     

Clark  IE Box  PA 《岩土钻凿工程》2000,(6):27-33

本文简要介绍了聚晶金刚石（PCD）的特性及其发展过程,并分别列出了其在钻进业中的应用领域,包括石油、天然气钻进和地质与矿山钻进,阐述了这两种钻进领域对PCD钻头的不同要求。  相似文献   

国土资源部CBERS-02B星“主用户”应用机制研究   总被引：2，自引：1，他引：1  

高平  方洪宾  刘顺喜  甘甫平  尤淑撑 《国土资源遥感》2009,(1)

以推动国产卫星数据应用为要旨,通过相关组织落实、工作部署以及CBERS-02B星数据的推广应用,逐步深化02B星"主用户"应用机制.  相似文献   

基于北斗三号的高速公路压实监测应用     

邵沛涵  王志斌  高成发  张博  郝文世  高平 《测绘工程》2022,31(2):59-65

目前BDS-3系统已经正式向全球开通,BDS-3卫星在工程监测上带来的精度提升也成为研究人员关注的热点。针对高速公路建设过程中路基填筑时关注的压实层厚度问题,文中采用GPS与BDS组合RTK定位方式,分别设计实时计算方案和后处理方案。分析基于BDS-3的多系统组合定位在高速公路路基施工监测中的应用效果,通过统计36个布设点的结果,多系统定位U方向结果与水准测量结果相比偏差在cm级,整体压实层厚偏差小于2 cm,该方案在减少人力需求的同时能达到实时监测的需要,在路基施工监测中有重大应用价值。  相似文献   

Modelling salmon lice dispersal in Loch Torridon, Scotland     

Murray AG  Gillibrand PA 《Marine pollution bulletin》2006,53(1-4):128-135

A particle transport model is described that is being used to simulate the dispersal of salmon lice (Lepeophtheirus salmonis) larvae in the waters of Loch Torridon. A hydrodynamic model, forced by tides and winds, drives the transport model. Particle movements are strongly influenced by winds, which can lead to formation of lice concentrations in coastal areas several kilometres from the source. Idealised constant wind simulations have been used to locate areas that larval lice may potentially reach from given source locations. Detailed analysis of simulations forced with real wind data is required to assess areas that larval lice from these sources are likely to reach. Further field and experimental work on the viability of lice is required to assess infection risk.  相似文献   

Estimating aquifer properties from the water level response to Earth tides     

Cutillo PA  Bredehoeft JD 《Ground water》2011,49(4):600-610

Water level fluctuations induced by tidal strains can be analyzed to estimate the elastic properties, porosity, and transmissivity of the surrounding aquifer material. We review underutilized methods for estimating aquifer properties from the confined response to earth tides. The earth tide analyses are applied to an open well penetrating a confined carbonate aquifer. The resulting range of elastic and hydraulic aquifer properties are in general agreement with that determined by other investigators for the area of the well. The analyses indicate that passive monitoring data from wells completed in sufficiently stiff, low porosity formations can provide useful information on the properties of the surrounding formation.  相似文献