查询词典 geochronology

40Ar-39Ar method is the first one of the possible geochronology techniques to solve this difficult scientific problem.

油气成藏作用伴生的矿物种类少，主要为碳酸盐矿物，以及少量石英和黄铁矿等，这些矿物均不适合用传统同位素年代学方法进行年龄测定，因此，油气成藏年龄是同位素年代学尚未解决的一大科学难题。40Ar-39Ar法是可能应用于油气成藏年龄测定的首选同位素定年方法。

Methods The objectives of study with zircon SHRIMP U-Pb geochronology are constraints of its formation age.

利用锆石SHRIMP U-Pb年代学对其形成时代进行约束。

In recent years, the study of excess argon genesis in high-pressure white micas is a hot topic in the field of isotope geochronology.

中文摘要：近年来，高压成因白云母中过剩氩研究成为国际同位素年代学界的一大热点。

In the latest few years of the 20th century,studies on K-Ar geochronology have been pushing on a new step as a sign of method perfected and precision enhanced.

在20世纪的最后几年，以激光显微探针40Ar/39Ar定年方法的完善和精度的提高为标志，把K-Ar年代学研究推向了一个新高度。

The ESR dating results are consistent with other geochronology evidences very well.

ESR测年结果与区域构造响应及同位素年代学和沉积年代学结果一致。

This paper makes a brief review on the technical advances in Quaternary geochronology achieved during the past over 20 years and their impacts on the timescale of recent human evolution.

晚期智人在中国出现的时间很可能不晚于西亚和南非，中国 4 0～ 1 0 0ka间人类化石的"缺环"，很可能只是测年技术系统误差造成的假象。

Then, the application of astronomical geochronology is discussed, and the time range of SQ32 is estimated as 1.1Ma. 4. The characteristics of the three horizontal hydrocarbon source rock beds drilled by well BZ25-1-5 has been analyzed and compared with the paleoclimatic conditions.

重点分析了BZ25-1-5井钻遇的三套烃源岩的发育特征，通过与气候条件之间的对应关系，揭示了良好的气候条件对烃源岩的发育具有重要的控制作用。

The Berkeley Geochronology Center is a non-profit scientific research institution dedicated to establishing the history of the Earth, its various inhabitants, and its interactions with the rest of our Solar System, throughout the 4.6 billion years of our planet's existence.

Berkeley地质年代学中心是一个非盈利性的科研机构，致力于建立46亿年前地球形成以来，地球的历史、地球上各种繁衍物种的历史，以及地球与太阳系其它天体相互作用的历史。

This site is the homepage of Department of Earth Sciences, Dalhousie University of Canada. The department's research subjects include crustal dynamics and geochemistry, geochronology and thermochronology, land and marine surface systems and landscape evolution, petroleum and economic geology, etc.

该网站是加拿大Dalhousie大学地球科学系的主页，它介绍了有关该系的教学和科研情况，该系的研究包括地壳动力学和地球化学、地质年代学和地热年代学、陆海表面系统和地貌演化、以及石油和经济地质等。

This may be possible by observing porphyroblast formation in cleavages of known deformation age, by identifying metamorphic mineral assemblages created by different events, or via geochronology.

这有可能通过观察斑晶形成的分裂已知变形年龄，查明变质矿物组合所造成的不同的事件，或透过年代。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。