1) spontancous fission tracks
自发裂变径迹
2) induced-fission tracks
诱发裂变径迹
3) fission track
裂变径迹
1.
Fission track study on the metallogenetic age of Xiayingfang gold deposit in eastern Hebei;
河北下营坊金矿成矿时代的裂变径迹研究
2.
Fission track etching condition of tourmaline;
电气石裂变径迹蚀刻条件研究
3.
Fission track dating and thermal history of Habahe rock body in Altai;
阿尔泰哈巴河岩体的裂变径迹年龄及热历史
4) Fission-track
裂变径迹
1.
Apatite fission-track records of the tectonic uplift of the central segment fo the Kunlun Mountains on the northern margin of the Qinghai-Tibet Plateau;
青藏高原北缘昆仑山中段构造隆升的磷灰石裂变径迹记录
2.
The fission-track dating method has been widely used to constrain the exhumation of mountains and tectono-thermal evolution of basins.
本文利用砂岩中磷灰石的裂变径迹方法,研究了伊犁盆地中生代抬升-剥露事件。
3.
It reflects progress in understanding the temperature dependence of fission-track annealing and in interpreting the information contained in fission-track length distributions.
裂变径迹技术是一种以磷灰石和锆石等矿物为定年对象的低温热年代学方法,特别适用于研究上地壳岩石冷却剥露的时间和过程。
5) Fission track method
裂变径迹法
1.
By using fission track method to test the age of tectite of Jingxi , its age was determined to be 0.
经采用裂变径迹法对靖西玻璃陨石作年龄测定,它陨落至今的年龄为0。
2.
Discussing some quantitative analysis methods of the oil and gas accumulation,including reservoir geochemistry、fluid inclusions dating method、potassium argon age method、fission track method,and the existing problems in the application process of these methods.
讨论了油气成藏期的若干定量分析方法,包括油藏地球化学、流体包裹体测年法、钾——氩测年法、裂变径迹法,以及这些方法在应用过程中存在的问题。
6) apatite fission track
磷灰石裂变径迹
1.
Analysis on the Meso-Neozoic subsidence and uplift history of the periphery of Ordos basin using apatite fission track;
运用磷灰石裂变径迹分析鄂尔多斯盆地周缘中新生代沉降隆升史
2.
The apatite fission track analysis applied to the exploration of the uplifting of the Qinghai-Xizang Plateau;
青藏高原隆升过程的磷灰石裂变径迹分析方法
3.
A case of application using apatite fission track to restrict the time of brittle fault movement;
利用磷灰石裂变径迹约束脆性断裂活动的时限
补充资料:自发裂变
自发裂变 spontaneous fission 放射性衰变方式之一。1940年K.A.彼得扎克和 G.N.弗廖罗夫首先观察到238U核自行发生裂变现象,其半衰期为1016~1017年。自发裂变与?衰变一样是量子力学隧道效应的结果。原子核边界有一裂变势垒,电荷数比钍核低的核素,裂变势垒太高,不可能自发裂变;230Th、 235U、239Pu等核素自发裂变的概率都很小,半衰期都在1015~1017年,自发裂变都不是它们的主要衰变方式 ;随着超铀核素的不断产生,自发裂变率增大,逐渐成为一些核素的主要衰变方式,254Cfa衰变只占0.31%,自发裂变占99.69%,T1/2=60.5天,自发裂变占100%,T1/2=1.6小时。 自发裂变产物为丰中子核素,极不稳定,可放出中子或发生β-衰变。某些自发裂变核素已用作不需加速器和反应堆的中子源。 |
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条