According to a new investigation in the northern Hexi corridor,the remains of two surface rupture zones were discovered on the southern margin fault of the Helishan. One rupture has a length of approximately 7km and t...According to a new investigation in the northern Hexi corridor,the remains of two surface rupture zones were discovered on the southern margin fault of the Helishan. One rupture has a length of approximately 7km and the other 10km. The two surface rupture zones might have been produced by the latest earthquake event. On the surface rupture is continuous scarp and free face caused by the rupture. The scarp is about 1 ～ 1. 5m high and on some sites,nearly up to 2m. According to the OSL results,the latest T1 terrace and higher flood plain forming in 3000a B. P. are dislocated by the fault. The above reveals the rupture age to be later than the T1 terrace. However,in the historical data and earthquake catalogue,we didn't find related information about the fault and surface rupture in this area. The 180 A. D. Biaoshi M8. 0 earthquake and the 756 A. D. Zhangye-Jiuquan M7. 0 earthquake are documented in historical data. It is inferred by textual research that the two earthquakes are related to the northern marginal fault of Yumushan in the south of the basin. Due to a lack of reliable evidence,there are still many arguments on this inferred conclusion. Thus we hold that the two surface rupture zones were produced by one of the two large earthquakes or other unrecorded historical event. The research on the activity and surface rupture of this fault can offer valuable information for the tectonic study and strong earthquake risk estimates of this region in the future.展开更多
Tujia dance is an advanced, special form of human aesthetic activities. The so-called aesthetic, simply put, is to feel, and understand the objective things or phenomena presented by the United States itself： specifi...Tujia dance is an advanced, special form of human aesthetic activities. The so-called aesthetic, simply put, is to feel, and understand the objective things or phenomena presented by the United States itself： specifically, it refers to the people in their social practice and objective process of historical things or phenomena occur and construct a special performance relationship. There are basically three kinds of relationships of man and objective things or phenomena： firstly, cognitive relation of science; Secondly, ethical norms relations; thirdly, aesthetic performance relationship. Focus on the relationship between the performances of the aesthetic object vivid sense of the expressive form of regularity is the unity and purpose, with freedom. The essence of aesthetic is liberty. Art aesthetic and general aesthetic are different, mainly because of its aesthetic objects, which is based on works of art as an aesthetic object. General aesthetic contemplation of beauty of reality, the reality of objective things or phenomena, not as people practice the original object mad the object of knowledge exists. In social practice, they first form a rational understanding of relationships and will practice relationship. On this basis, when the society develops to the degree of no direct utilitarian attitude, practical attitude towards the object of an object only when there has been more mature, purely aesthetic relationship. The beauty of art is different from the reality beauty, which is produced and existed as an aesthetic object.展开更多
基金supported by the Joint Earthquake Science Foundation (B07007)the Foundation of Base Science of Institute of Geology,CEA (DFIGCEA0607122)the Foundation of State Key Laboratory of Earthquake Dynamics (LED0607)
文摘According to a new investigation in the northern Hexi corridor,the remains of two surface rupture zones were discovered on the southern margin fault of the Helishan. One rupture has a length of approximately 7km and the other 10km. The two surface rupture zones might have been produced by the latest earthquake event. On the surface rupture is continuous scarp and free face caused by the rupture. The scarp is about 1 ～ 1. 5m high and on some sites,nearly up to 2m. According to the OSL results,the latest T1 terrace and higher flood plain forming in 3000a B. P. are dislocated by the fault. The above reveals the rupture age to be later than the T1 terrace. However,in the historical data and earthquake catalogue,we didn't find related information about the fault and surface rupture in this area. The 180 A. D. Biaoshi M8. 0 earthquake and the 756 A. D. Zhangye-Jiuquan M7. 0 earthquake are documented in historical data. It is inferred by textual research that the two earthquakes are related to the northern marginal fault of Yumushan in the south of the basin. Due to a lack of reliable evidence,there are still many arguments on this inferred conclusion. Thus we hold that the two surface rupture zones were produced by one of the two large earthquakes or other unrecorded historical event. The research on the activity and surface rupture of this fault can offer valuable information for the tectonic study and strong earthquake risk estimates of this region in the future.
文摘Tujia dance is an advanced, special form of human aesthetic activities. The so-called aesthetic, simply put, is to feel, and understand the objective things or phenomena presented by the United States itself： specifically, it refers to the people in their social practice and objective process of historical things or phenomena occur and construct a special performance relationship. There are basically three kinds of relationships of man and objective things or phenomena： firstly, cognitive relation of science; Secondly, ethical norms relations; thirdly, aesthetic performance relationship. Focus on the relationship between the performances of the aesthetic object vivid sense of the expressive form of regularity is the unity and purpose, with freedom. The essence of aesthetic is liberty. Art aesthetic and general aesthetic are different, mainly because of its aesthetic objects, which is based on works of art as an aesthetic object. General aesthetic contemplation of beauty of reality, the reality of objective things or phenomena, not as people practice the original object mad the object of knowledge exists. In social practice, they first form a rational understanding of relationships and will practice relationship. On this basis, when the society develops to the degree of no direct utilitarian attitude, practical attitude towards the object of an object only when there has been more mature, purely aesthetic relationship. The beauty of art is different from the reality beauty, which is produced and existed as an aesthetic object.
