极地研究

极地研究 ›› 1997, Vol. 9 ›› Issue (3): 54-55.

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L&R-ET重力仪在南极中山站记录到“不明地学事件”

郝晓光   

  • 出版日期:1997-09-30 发布日期:1997-09-30

AN UNIDENTIFIED GEOPHYSICAL EVENT RECORDED BY L & R ET AT ZHONGSHAN STATION,ANTARCTICA

  • Online:1997-09-30 Published:1997-09-30

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摘要：

本文首次报告了Ｌａｃｏｓｔｅ＆Ｒｏｍｂｅｒｇ－ＥａｒｔｈＴｉｄｅ２１地球潮汐重力仪在南极中山站记录到“不明地学事件”的情况，并对这种有待进一步证实的现象进行了简单描述和初步分析。

关键词: 南极,中山站,地球潮汐重力仪,物质扰动,地学事件

Abstract:

During 22:00UT,Jan.25 to 10:00UT,Jan.28,1997,a 60 hour continuous stable disturbance was recorded by Lacoste & Romberg earth tide gravity meter (ET21) installed at Zhongshan Station,Antarctica.Its maximum amplitude is ±3μgal.After removing the possibility of malfunction of the instrument and any interference from outside,they determined this is a rare,integral and characteristic “geophysical event”. Since Jan.25,The “event” subsequently occurred on Feb.9,19,23,Mar.29,May.8 After analyzing and studying these data,I tentatively concluded the event was caused by the abnormal disturbance of the matter inside the earth's core. They temporally called the phenomenon which firstly discover at Antarctica FDEC(Free Disturbance of the Earth's Core).