子午线弧长公式的简化及通用高斯投影计算程序介绍   总被引：6，自引：0，他引：6  

刘正才 《测绘工程》2001,10(1):55-56,62

通过简化子午线弧长公式，给出适用于各种椭球的通用高斯投影实用公式，并简单介绍依此编制的通用高斯投影计算程序。  相似文献   

从地名看开疆文化在海南岛的传播扩散   总被引：4，自引：4，他引：4  

朱竑 《地理科学》2001,21(1):89-93

开疆文化是一种开发，开拓边疆的文化，开疆文化的传播是通过众多文化要素的逐渐渗透，传输而实现整体状况改变的，开疆文化在海南的传播扩散及其历史影响则又可以从地名等文化要素的演变中得到反映，进而从一个侧面印证开疆文化在海南岛的传播，扩散及影响。  相似文献   

Gas hydrate stability and the assessment of heat flow through continental margins   总被引：7，自引：0，他引：7  

Ingo Grevemeyer  Heinrich Villinger 《Geophysical Journal International》2001,145(3):647-660

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Regional phases in continental and oceanic environments   总被引：1，自引：0，他引：1  

B. L. N. Kennett  T. Furumura 《Geophysical Journal International》2001,146(2):562-568

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Amplitude effects due to multiscale impedance contrasts and multiple scattering: implications for Ivrea‐type continental lower crust     

Huub Douma  Kabir Roy&#;Chowdhury 《Geophysical Journal International》2001,147(2):435-448

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Conceptualising State‐Controlled Resort Islands for an Environment‐Friendly Development of Tourism: The Maldivian Experience     

Manfred Domroes 《Singapore journal of tropical geography》2001,22(2):122-137

The Maldives host a sophisticated and competitive international tourist industry which has replaced fishing as the dominant economic activity. With their rich tropical reef ecosystems and the abundant biodiversity of their marine environment, a total of 86 uninhabited islands had been converted into Resort Islands by the end of 2000. Resort Islands are equipped with comprehensive facilities for accommodation, food, recreation and leisure. They are also strictly reserved for foreign tourists and guarantee complete privacy. This gives the benefit of averting conflicts of acculturation with local islanders. In the arena of impacts on the physical environment, however, the consumptive leisure lifestyle of the tourists has been harmful to the Resort Islands as seen in sewage, garbage and waste pollution, as well as reef destruction and beach erosion. While the government of the Maldives takes great effort to harmonise tourism and the environment, the growth of mass tourism in the last 20 years has engendered grave environmental impacts. For future sustainable development of the Resort Islands, the tourists' environmental awareness must be increased to promote greater responsibility for the protection of the fragile coral and reef ecosystems of the Maldives.  相似文献   

An example of earthquake nucleation of the strong continental earthquakes     

CHEN Xue-zhong  GUO Tie-shuan  ZHU Ling-ren 《地震学报(英文版)》2001,14(2):225-229

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江西陆相红盆岩石地层划分与对比     

廖瑞君  衷存堤  肖晓林 《江西地质》2001,15(3):166-170

本文论述了江西陆相红盆地正式和非正式岩石地层划分的原则和方法；从构造界面、岩性岩相、古生物等7个方面阐述了陆相红盆地之间的岩石地层可进行对比。  相似文献   

对陆相区域地层研究的一些思考     

蔡雄飞  章泽军  顾延生 《江西地质》2001,15(4):253-255

陆相地层侧向加积作用广泛发育，导致岩性、岩相多变。如何控制陆相地层横向不稳定是盆地分析的难点。高分辨率事件沉积作用，可以有效提高陆相区域地层划分与对比的精度。  相似文献   

塔里木盆地北部坳陷震旦纪-奥陶纪大陆裂谷性质及其演化   总被引：2，自引：0，他引：2  

李德伦  张大权 《吉林大学学报(地球科学版)》2001,31(2):136-141

塔里木盆地北部坳陷是在前震旦纪结晶基底之上发育起来的大陆裂谷盆地,始于早震旦世,结束于晚奥陶世.裂谷的轴部自西向东由阿瓦提凹陷、满加尔凹陷、英吉苏凹陷(包括库鲁克塔格南区)组成,向东延伸到罗布泊以东地区.裂谷轴部与地幔隆起带和高磁异常带相对应.裂谷东部主要以半深海-深海相的浊积岩、放射虫硅质岩和笔石页岩为特征,裂谷西部和翼部则以浅水盆地相和台地相的碳酸盐为特征.裂谷早期的火山岩主要分布于中东部的切谷内,具有双峰式火山岩的特征,玄武岩属低硅高钛富碱型.据区域动力学背景、沉积特征、沉降速率,将裂谷演化划分为幼年期,成年期和衰亡期3个阶段.  相似文献