我们已对北太平洋6—13°N,166—178°W面积达数十万平方公里的海域进行了深海宇宙尘调查研究,并根据该区平均沉积速率和数十个采样站位沉积物中宇宙尘实际含量测定了地球表面宇宙尘年降落量。结果表明,各个站位的测定值比较相近,都在每年降落百吨级至千吨级尘埃粒子的范畴(粒径大于60μm),同前人使用同种研究方法的测定结果比较一致。 We have conducted a deep-sea cosmic dust investigation into the waters of the North Pacific at 6-13 ° N, 166-178 ° W, covering an area of ​​hundreds of thousands of square kilometers. Based on the average sedimentation rate in the area and the sediments in dozens of sampling stations The actual content of cosmic dust measured the annual decline of cosmic dust on the Earth’s surface. The results show that the measured values ​​of the stations are relatively similar, falling in the range of one hundred tons to thousands of tons of dust particles (particle size greater than 60μm) each year, in line with previous studies using the same method.