absolute time scale

简明释义

绝对年代表;

英英释义

例句

1.The absolute time scale helps scientists correlate events across different geological eras.

通过绝对时间尺度，科学家能够将不同地质时代的事件进行关联。

2.Understanding the absolute time scale is crucial for studying Earth's history.

理解绝对时间尺度对于研究地球历史至关重要。

3.In astronomy, an absolute time scale is necessary for measuring cosmic events.

在天文学中，绝对时间尺度是测量宇宙事件所必需的。

4.The geologist used the absolute time scale to date the rock formations accurately.

地质学家使用绝对时间尺度准确地为岩石层进行年代测定。

5.Radiometric dating provides an absolute time scale for the age of fossils.

放射性测年为化石的年龄提供了一个绝对时间尺度。

作文

Understanding the concept of an absolute time scale is essential in various fields, including geology, archaeology, and astronomy. An absolute time scale refers to a chronological framework that assigns specific dates or time periods to events, allowing scientists and researchers to accurately date occurrences in Earth's history. This is in contrast to a relative time scale, which places events in relation to one another without providing exact dates.The development of an absolute time scale has revolutionized our understanding of the planet's history. For instance, radiometric dating techniques, such as carbon dating, allow us to determine the age of organic materials by measuring the decay of isotopes. This method provides a numerical age, which fits into the absolute time scale, enabling researchers to pinpoint when certain events took place.In geology, the absolute time scale is crucial for understanding the timing of geological events, such as volcanic eruptions, the formation of mountains, and the extinction of species. By placing these events on an absolute time scale, geologists can create a clearer picture of Earth’s history and the processes that have shaped it over millions of years.Similarly, in archaeology, the absolute time scale helps archaeologists date artifacts and understand human evolution and migration patterns. For example, by using techniques like dendrochronology (tree-ring dating) and thermoluminescence dating, archaeologists can establish a timeline for human activity, which is essential for interpreting how early civilizations developed.Moreover, astronomers utilize the absolute time scale to understand the age of celestial bodies and the universe itself. The Big Bang theory suggests that the universe is approximately 13.8 billion years old. By studying the light from distant galaxies, astronomers can estimate when certain events occurred, placing them on the absolute time scale of cosmic history.The importance of an absolute time scale extends beyond scientific research; it also influences how we perceive our own history. Understanding when significant events occurred—such as the rise and fall of empires, major technological advancements, or pivotal moments in social justice movements—allows us to contextualize our present and plan for the future. In conclusion, the absolute time scale is a fundamental concept that provides a framework for understanding the chronology of events across various disciplines. By offering precise dates and timelines, it enhances our comprehension of the past and informs our interpretations of the present and future. As we continue to refine our methods of dating and improve our understanding of time, the absolute time scale will remain a vital tool in unlocking the mysteries of our world and beyond.

理解绝对时间尺度的概念对于地质学、考古学和天文学等多个领域至关重要。绝对时间尺度是指一个时间框架，它为事件分配特定的日期或时间段，使科学家和研究人员能够准确地确定地球历史中的事件。这与相对时间尺度形成对比，后者将事件相互关联而不提供确切的日期。绝对时间尺度的发展彻底改变了我们对地球历史的理解。例如，放射性测年技术（如碳测年）使我们能够通过测量同位素的衰变来确定有机材料的年龄。这种方法提供了一个数字年龄，适合于绝对时间尺度，使研究人员能够精确确定某些事件发生的时间。在地质学中，绝对时间尺度对于理解地质事件的时序至关重要，例如火山喷发、山脉的形成和物种的灭绝。通过将这些事件置于绝对时间尺度上，地质学家能够更清晰地描绘地球的历史以及塑造它的过程，这些过程经历了数百万年。同样，在考古学中，绝对时间尺度帮助考古学家对文物进行年代测定，理解人类进化和迁徙模式。例如，通过使用树轮年代学（树木年轮测年）和热释光测年等技术，考古学家能够建立人类活动的时间线，这对于解释早期文明的发展至关重要。此外，天文学家利用绝对时间尺度了解天体及宇宙本身的年龄。大爆炸理论表明，宇宙的年龄约为138亿年。通过研究遥远星系的光，天文学家可以估算某些事件发生的时间，将其置于宇宙历史的绝对时间尺度上。绝对时间尺度的重要性超越了科学研究；它还影响着我们对自身历史的看法。理解重大事件发生的时间——例如帝国的兴衰、主要技术进步或社会正义运动中的关键时刻——使我们能够为现在提供背景并为未来做出规划。总之，绝对时间尺度是一个基本概念，为各个学科的事件时间顺序提供了框架。通过提供精确的日期和时间线，它增强了我们对过去的理解，并丰富了我们对现在和未来的诠释。随着我们继续改进测年方法并提高对时间的理解，绝对时间尺度将仍然是揭示我们世界及其以外奥秘的重要工具。