地壳

Considering near field observation and parameter interp retation of source mechanics, the authors think that the low or higt velocity be lts in Tengchong volcano areas are closely related to the magma activities of th e volcanoes.

根据本文成析成象结果，结合数字化近场地震观测资料及震源力学参数特征解释，分析认为，腾冲火山区地壳不同深度存在的低速带或高速带均与火山作用的岩浆活动有密切关系。

The metal elements of the volcanic-hosted massive sulfide deposit have two sources, the copper and zinc are derived from rhyolitic magmas whereas the lead are probably related to old sediments overlying the rhyolites.(4) It is suggested here that the volcanic rocks hosting massive sulfide deposit in the north Qilian orogen, which are previously considered as a bimodal suite of Neo-proterozoic to middle Cambrian age in a continental rift, are virtually related to subduction magmatism in Ordovician age, and there might have no continental rift magmatism of Neo-proterozoic to middle Cambrian in the north Qilian.

Th/Ta比高(5.0～11.7)，εNd为较大的负值(-2.6～-8.4)，流纹岩的形成可能是两个端元组分混合的过程、或是上地壳混染的结果，形成在活动陆缘环境；(3)北祁连块状硫化物矿床成矿金属物质具有两种来源，Cu、Zn等来源于流纹岩，而Pb的来源可能与古老沉积物有关；(4)本文认为，前人厘定的北祁连新元古代-中寒武纪赋存块状硫化物矿床的大陆裂谷双峰式火山岩应是与俯冲作用有关的奥陶纪火山岩，说明北祁连可能不存在新元古代-中寒武纪的大陆裂谷活动。

Garnish with graham cracker crust rimmer.

配菜与格雷厄姆饼干地壳黎默尔。

California is one of the most seismically active regions in the world.

加里福尼亚是世界上最地壳最活跃的几个地区之一。

Seismographs are instruments used to record the motion of the ground during an EQ--installed in the ground throughout the world and operate as seismographic network.

地震仪是一种在地震时用来记录地壳运动的工具，它们安装在地下，遍及全球，以测震网络的形式运作。

Seismographs are instruments used to record the motion of the ground during an EQ--installed in the ground throughout the world and operate as seismographic network.

地震记录仪是一种在地震时用来记录地壳运动的工具，它们安装在地下，遍及全球，以测震网络的形式运作。

Seismographs are instruments used to record the motion of the ground during an EQ--installed in the ground throughout the world and operate as seismographic network.

地震记录仪是一种在地震时用来记录地壳运动的工具，它们在地下形成全球测震网络。

Fortunately, the modern geodetic measurements such as the Global Positioning System technique can overcome the shortage of the geological and seismographic methods in the time dimension; and yet, the coverage of the geodetic survey stations is not sufficient. As a result, it is necessary to employ numerical simulation to investigate the continuous deformation of the crust.

而以全球定位系统等技术为主的大地测量方法弥补了地质和地震学方法在时间维上的不足，但大地测量方法存在测点覆盖不足及测点地理分布不均匀的缺点，因此，要得到连续的地壳形变场有必要借助数值模拟方法。

State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Seismological Bureau, Beijing 100029, China

中国地震局地质研究所，地震动力学国家重点实验室地壳形变研究中心，北京 100029

The close time_space relationship between shoshonite in the northern part of Siziwang Banner and fluorite mineralization implies that the fluorite deposit might have resulted from the lithospheric thinning of eastern China and the replacement of the lower crust.

萤石成矿作用与钾玄岩的时空关系暗示了萤石的成矿过程可能是中国东部岩石圈减薄和下地壳的置换地质事件的结果。

The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.

其基本内涵可概括为：以确有疗效的中药复方为研究对象，以现代科学技术和传统中医药理论为技术支持，以该复方所治病证的药效响应为评价标准，以优化重组疗效更优的新复方为研究目的。

Ever since our world has been a world, native forests have been indiscriminately exploited by man.

自从我们的世界一直是世界原生森林被任意剥削人。