The frequenec and geographical distribution of ancient meteorite falling in China have been investigated based on historic record since more than 2000 years ago. It is postulated from this study that: (1) The true dis...The frequenec and geographical distribution of ancient meteorite falling in China have been investigated based on historic record since more than 2000 years ago. It is postulated from this study that: (1) The true distribution of meteorite falling frequence in geographic space obeys Poisson's distribution and the negative binomial distribution with respect to space distribution of meteorites is due to the overlapping of different Poisson's population; (2) As has been borne out by partial eorrelation coeffieient.the progressive increase in meteorite falling frequency with time is due to the increase in population. After reducing or eliminating the effect of population growth trend, the time function of meteorite farting frequency is a stationary random, process. By means.of autocorrelation coefficient and power spectrum, the falling periods (year) of meteoritehave been obtained as: 1350±212, 286.3±27.5, 107±29, 61.4±4.05, 34.51±3.08, 19.6±1.72, 10.5±0.71; (3) Variation of meteorite falling period is of logarithim spiral nature ; (4) Meteorite falling is probably influenced by the activities of comets and sunspots. No relationship has been confirmed between meteorite failing and major earthquakes.展开更多
The distribution and exterior characters of each individual meteorite are presented for the iron meteorite shower in Nantan County, Kwangsi Chuang Autonomous Regiou,China. Nineteen iron meteorites have been found up t...The distribution and exterior characters of each individual meteorite are presented for the iron meteorite shower in Nantan County, Kwangsi Chuang Autonomous Regiou,China. Nineteen iron meteorites have been found up to date, umounting approximately to 9,500 kg in total weight and spreading over an area of about 30 square kilometers. As compared with other iron meteorites known in China, they are much larger in size and contuin much more mineral species. It is also interesting to note that a complete sample of various parts of a primitive meteorite can be expected. The discovery of this meteorite shower is considered to be of significant value in science.展开更多
文摘The frequenec and geographical distribution of ancient meteorite falling in China have been investigated based on historic record since more than 2000 years ago. It is postulated from this study that: (1) The true distribution of meteorite falling frequence in geographic space obeys Poisson's distribution and the negative binomial distribution with respect to space distribution of meteorites is due to the overlapping of different Poisson's population; (2) As has been borne out by partial eorrelation coeffieient.the progressive increase in meteorite falling frequency with time is due to the increase in population. After reducing or eliminating the effect of population growth trend, the time function of meteorite farting frequency is a stationary random, process. By means.of autocorrelation coefficient and power spectrum, the falling periods (year) of meteoritehave been obtained as: 1350±212, 286.3±27.5, 107±29, 61.4±4.05, 34.51±3.08, 19.6±1.72, 10.5±0.71; (3) Variation of meteorite falling period is of logarithim spiral nature ; (4) Meteorite falling is probably influenced by the activities of comets and sunspots. No relationship has been confirmed between meteorite failing and major earthquakes.
文摘The distribution and exterior characters of each individual meteorite are presented for the iron meteorite shower in Nantan County, Kwangsi Chuang Autonomous Regiou,China. Nineteen iron meteorites have been found up to date, umounting approximately to 9,500 kg in total weight and spreading over an area of about 30 square kilometers. As compared with other iron meteorites known in China, they are much larger in size and contuin much more mineral species. It is also interesting to note that a complete sample of various parts of a primitive meteorite can be expected. The discovery of this meteorite shower is considered to be of significant value in science.
