扬子克拉通北西缘碧口群的解体与地层划分   总被引：14，自引：0，他引：14       下载免费PDF全文

匡耀求  张本仁  欧阳建平 《地球科学》1999,24(3):251-255,286

碧口群组成十分复杂,论述了对其解体的必要性;解体出了包括鱼洞子花岗绿岩地体周缘的稳定陆缘沉积建造,扬子地台北西缘古元古代间裂谷型火山－沉积建造,中元古代洋壳残生及深海沉积物和新元古代的火山弧前盆地堆积,新元古代的残留地中海式堆积以造山后的山间盆地堆积等众多不同性质的构造地层单元;并对其形成过程作了初步讨论。  相似文献   

邻羟基萘基荧光酮－溴化十二烷基二甲基苄铵光度法测定微量锡   总被引：1，自引：0，他引：1  

冯泳兰  邝代治 《岩矿测试》1994,(4)

邻羟基萘基荧光酮－溴化十二烷基二甲基苄铵光度法测定微量锡冯泳兰，邝代治衡阳师范高等专科学校化学系４２１００８邻羟基萘基荧光酮（β－ＨＮＦ）已应用于光度分析测定微量Ｍｏ￣［１］。本文研究了在稀Ｈ＿２ＳＯ＿４介质中，溴化十二烷基二甲基苄铵（ＤＤＭＡＢ）存...  相似文献   

Dissolution Dynamics of Grossularite and Hedenbergite     

Cen KuangChina University of Geosciences  Wuhan 《中国地质大学学报(英文版)》1993

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川东地区天然气勘探开发的三种模式     

蓝江华  匡建超 《矿物岩石》1998,18(4):86-89

本文根据川东地区天然气勘探开发历史,系统归纳和总结了成组气田整体勘探开发、多高点滚动勘探开发和多产层立体勘探开发三种模式的勘探程序、勘探部署以及开发特点和原则。以供后续天然气勘探开发决策时参考。  相似文献   

Cell biotechnology of rhodophytes in China     

Su-juan  Wang  Mei  Kuang  Ling-bo  Ma 《中国海洋湖沼学报》1998,16(1):162-167

Cell biotechnology of rhodophytes is important not only in theoretical research but also in cultural practice and for exploitation of genetic resources. In this paper, cell biotechnology ofPorphyra is reviewed. Tissue culture and protoplast studies on other rhodophytes in China are discussed.

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可持续发展进程中的资源、环境地球化学研究——以广东省为例     

乔玉楼  匡耀求  谭建军  郭国章 《矿物岩石地球化学通报》1997,(2)

可持续发展进程中的资源、环境地球化学研究——以广东省为例乔玉楼匡耀求谭建军郭国章（中国科学院广州地球化学研究所，广州５１０６４０）关键词持续发展资源环境地球化学资源环境是维持人类生态系统的物质基础，资源环境的持续发展则是人类的生存和可持续发展的基础［...  相似文献   

脊髓纵裂征一例     

黎海亮  裴树举 《CT理论与应用研究》1996,5(4):34-35

本文报道了一例脊髓纵裂征，并着重讨论了该病Ｘ线ＣＴ表现，其中脊髓中央的骨嵴是诊断该病的关键，通过Ｘ线ＣＴ检查对比认为ＣＴ是最理想的诊断依据  相似文献   

A Comprehensive Study of Buried Structures in the Beijing Plain Using Multi-Temporal Remote Sensing Data Processing And Multiple Information Sources     

Kuang Shengai  Li Jinming 《《地质学报》英文版》1988,62(1):93-100

Proceeding from gaining a knowledge of the structural settings in this area, the authors applied remotesensing techniques and selected multi-temporal image processing to extract information of buried structures inthe Beijing plain area. Good results have been achieved. Through an integrated analysis of remote-sensing, geo-logical, seismic and aeromagnetic data, it is pointed out that there exist two sets of buried fractures of differingtrends and orders-the northeast set and the northwest set. forming a rhombic framework in the images. Thetwo sets of fractures have still been active since the Quaternary. which is of practical signifcance for geologicalstudy, earthquake prevention and planning of urban construction in the area. The results demonstrate that theselection of multi-temporal processing of remote sensing images and the integrated analytic method are impor-tant in the study of buried structures.  相似文献   

The Southwest Pacific GPS Project: Geodetic results from Burst 1 of the 1990 Field Campaign     

B. Schutz  M. Bevis  F. Taylor  D. Kuang  P. Abusali  M. Watkins  J. Recy  B. Perin  O. Peyroux 《Journal of Geodesy》1993,67(4):224-240

The Southwest Pacific GPS Project (SWP) is using the Global Positioning System (GPS) to monitor crustal motion across and within a plate boundary complex between the Australian and Pacific plates. GPS field campaigns were conducted in 1988, 1989 and 1990, to observe networks of increasing size and complexity. The 1990 campaign consisted of two periods, or Bursts, and this paper focuses on the analysis of data collected during the nine day Burst 1 in July, 1990, a period in which GPS Selective Availability was activated. During Burst 1, baselines that spanned the Tonga Trench and the Lau Basin were observed, and only one station (Espiritu Santo, Vanuatu) was located west of Fiji in the network. The lengths of the baselines observed fall mainly between 300 km and 1600 km, but some lines are as long as 3500 km. A total of 78 station-days of field site data and approximately 150 station-days of global fiducial data were processed from predominantly codeless receivers. A global fiducial network of 20 sites was used to provide orbit control and accuracy assessment for the 13 available satellites. The daily solutions for 45 baselines between 10 SWP sites have an RMS scatter in the length of 24 mm plus 6 parts per billion. This scatter provides an estimate of baseline precision for the Burst 1 nominal solution. Experiments were conducted to investigate a variety of possible effects on the SWP Network baseline estimates, including the influence of a reduced global fiducial network for the purpose of assessing the quality of results obtained in 1988 and 1989 in which the fiducial network was smaller than in 1990. These experiments produced results that agreed with the nominal solution at the level of the precision estimate. Furthermore, estimates for selected baselines in Australia, the Central Pacific, North America and Europe, also measured by VLBI and SLR, were used for an external accuracy evaluation. The GPS and VLBI or SLR determinations of length agreed at a level consistent with the nominal solution precision estimate.  相似文献   

数字逻辑理论及其在气象预报集成中的应用     

张选民  文强  邹希云  张家望  匡昌武 《气象》2002,28(6):8-10

以数字逻辑理论为基础，采用逻辑电路设计方法，对二级（0，1）气象要素预报多种方法进行预报集成尝式，效果令人满意。该方法理论依据充分，计算简单，易于编程，为预报集成开辟了一条新的途径。  相似文献