莫霍计划——钻穿大洋地壳至地幔

来源 :海洋地质动态 | 被引量 : 0次 | 上传用户:kuuldor
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
在大陆和大洋地区,莫霍不连续面代表从地壳到地幔之间的、由地震所定义的一级声阻抗界面。探测莫霍面这个前沿科学问题是许多地质学家梦寐以求的科学目标,但却受到技术的限制而至今未能实现。今天,IODP(综合科学大洋钻探计划)的“地球”号科学钻探船,对于钻探洋盆地壳而到达莫? In the continents and oceans, Moho discontinuities represent the first-order acoustic impedance interface defined by the earth’s crust to the mantle. The cutting-edge scientific problem of detecting the Moho is a dream that many geologists dream of, but it has not been realized due to technical limitations. Today, the IODP (Earth Science) scientific drills for IODP reached Mo for drilling the ocean basin crust.
其他文献
The perturbation method in supersymmetric quantum mechanics is used to study the spheroidal wave functions’ eigenvalue problem. The super-potential are solved
Optical properties of silver nanoparticles such as extinction, absorption and scattering efficiencies are studied based on Green’s function theory. The numeric
Sb is a classic material of a super-resolution near field structure (super-RENS) mask layer in which the optical switch formation is often realized by nanosecon
We report the fabrication of an optical fiber Bragg grating assisted mismatched coupler based on the fused biconical tapered technology. The investigation of th
We employ a sample of cold 87Rb atoms in a magneto-optical trap to study the impulse responses and spatial characters of backward conjugate waves in a four-wave
本文以课内外两个维度出发,对初中语文阅读进行了相关探讨,并提出了相关策略,希望给予同行教学以借鉴.
We report an experimental study on a double-arched LD array stagger pumped electro-optic Q-switched Nd:YAG laser without water cooling by using a convex-concave
A kind of double-cladding photonic crystal fiber (DC-PCF) with high birefringence and two zero-dispersion wavelengths is proposed. It is found that the birefrin
由于中职学生毕业后将直接走上工作岗位,加之其本身成分复杂,文化课基础较差,基于这一点,中职语文教师就应积极探索新的教学模式,突出语文教学的实用性和专业化,力求体现中职
数学是中职学习阶段一门必修的公共基础课,是中职学生得到进一步学习与进步的重要途径,笔者结合自身工作实践,通过从思想上认识到学生数学是有用的、从兴趣上培养学习数学是