中美地球深部探测工作进展与对比

Progress and comparative study of deep earth exploration in China and the United States

地球深部探测是了解地球深部构造、物质成分分布及演化规律的重要手段。美国是世界上地球深部探测工作开展较先进的国家。为充分了解中国和美国在地球深部探测领域的发展水平和存在差距,介绍了中国和美国地球深部探测工作的开展情况,对中美两国的深部探测工作进行了详细对比与研究,发现中国的地震探测程度较浅、探测精度较低、实验数据量较少、资金投入较低,总体探测水平与美国存在明显差距,但中国深部探测工作的力度正在不断加大,在地球化学、大地电磁测量、科学钻探等方面逐渐形成了自己的优势领域。在分析对比中美地球深部探测进展的基础上,提出了加大深部地震探测力度、增加科学钻井的数量、建立单独的野外观测与数据管理基地等建议。

Deep Earth exploration is an important approach to understanding deep structure, material composition and evolution of the Earth.The United States is a relatively advanced country in the world in the aspect of deep exploration of the Earth.In order to fully understand the development level and the gap between China and the United States in the field of deep exploration of the Earth, the authors first introduced projects for the development of deep Earth exploration in China and the United States, and then conducted detailed comparative analysis and research on the deep exploration work of China and the United States.The results show that, in China, the level of seismic detection is relatively shallow, the detection accuracy is relatively low, the quantity of experimental data is relatively small, the capital investment is relatively low, and hence there is a significant gap of overall exploration level between the two countries.However, the intensity of deep exploration work in China is constantly, increasing and it has gradually formed its own advantages in geochemistry, magnetotelluric measurement and scientific drilling. Based on the analysis and comparisonof the progress of the deep exploration of the Earth in China and the United States, the authors propose to increase the intensity of deep seismic exploration, increase the number of scientific drilling, and establish a separate field observation and data management base.