sanidine

简明释义

英[ˈsænɪdiːn]美[ˈsænɪdin]

n. [矿物] 透长石；玻璃长石

英英释义

单词用法

同义词

反义词

例句

1.The results indicate that the colourless and transparent one is sanidine with homogeneous exsolution microstructure and the reddish one is orthoclase or sanidine without exsolution microstructure.

结果表明，两者成分差别不大，而结构差别较大，无色透明的为透长石，出溶叶片发育；微红色的为正长石或低透长石，出溶结构不发育。

2.The results indicate that the colourless and transparent one is sanidine with homogeneous exsolution microstructure and the reddish one is orthoclase or sanidine without exsolution microstructure.

结果表明，两者成分差别不大，而结构差别较大，无色透明的为透长石，出溶叶片发育；微红色的为正长石或低透长石，出溶结构不发育。

3.The results show that the TL signals of pumice and sanidine phenocryst have better thermal-stability, so they can be used for TL dating.

结果表明，浮岩和透长石的TL信号具有良好的热稳定性，适用于TL测年。

4.The volcanic rocks we collected contained a significant amount of sanidine 长石, which is crucial for understanding the eruption history.

我们收集的火山岩中含有大量的sanidine 长石，这对于理解喷发历史至关重要。

5.Geologists often analyze sanidine 长石 to determine the thermal history of igneous rocks.

地质学家经常分析sanidine 长石以确定火成岩的热历史。

6.In the lab, we used X-ray diffraction to identify the presence of sanidine 长石 in our samples.

在实验室，我们使用X射线衍射来识别样品中sanidine 长石的存在。

7.The sanidine 长石 found in this region indicates past volcanic activity.

在该地区发现的sanidine 长石表明过去的火山活动。

8.During our field trip, we discovered a layer rich in sanidine 长石 that dates back millions of years.

在我们的实地考察中，我们发现了一层富含sanidine 长石的岩层，追溯至数百万年前。

作文

Sanidine is a common mineral found in volcanic rocks, particularly in the form of a glassy feldspar. It is an important component in the study of geology and petrology due to its unique properties and formation processes. Understanding sanidine (正长石) can provide valuable insights into the conditions under which certain rocks are formed and the geological history of an area. The term sanidine refers specifically to a high-temperature variety of potassium feldspar. It typically crystallizes from molten rock at temperatures exceeding 900 degrees Celsius. This process occurs during the cooling of volcanic lava, where the rapid cooling prevents the formation of larger crystals, resulting in the glassy appearance of sanidine (正长石). Its distinctive texture and composition make it a key mineral for identifying volcanic rocks. In geology, the presence of sanidine (正长石) in a rock sample can indicate that the rock originated from a volcanic environment. For instance, rocks such as rhyolite often contain significant amounts of sanidine, which helps geologists classify and understand the volcanic activity in a region. Furthermore, sanidine can also be used in radiometric dating, as it often contains trace amounts of radioactive isotopes that can provide age estimates for the rocks in which it is found. The study of sanidine (正长石) extends beyond its geological significance. It also has implications in various fields, including archaeology and anthropology. For example, the analysis of sanidine in archaeological sites can help researchers determine the age of artifacts and the historical context of human activity in volcanic regions. This interdisciplinary approach highlights the importance of sanidine (正长石) not only in understanding Earth's geological processes but also in shedding light on human history. Moreover, sanidine (正长石) has distinct physical properties that make it interesting for scientific research. It exhibits perfect cleavage, meaning it can break along specific planes, which can influence the way it is used in various applications. Its glassy luster and transparency make sanidine (正长石) aesthetically appealing, leading to its use in some decorative applications. Additionally, its chemical composition allows for the study of mineral stability under different temperature and pressure conditions, contributing to our knowledge of mineralogy. In conclusion, sanidine (正长石) is more than just a mineral; it is a crucial element in the study of geological processes, human history, and material science. Its unique characteristics and formation processes offer a window into the past, revealing the dynamic nature of our planet. By studying sanidine (正长石), scientists can better understand the forces that shape our world, making it an essential topic in both academic research and practical applications. As we continue to explore and learn about this fascinating mineral, we uncover more about the intricate connections between geology, history, and humanity.

正长石是一种常见的矿物，主要存在于火山岩中，特别是以玻璃状长石的形式。由于其独特的性质和形成过程，它在地质学和岩石学的研究中是一个重要的组成部分。理解sanidine（正长石）可以为我们提供有关某些岩石形成条件和地区地质历史的宝贵见解。 术语sanidine专指高温变种的钾长石。它通常在超过900摄氏度的温度下从熔融岩石中结晶。这个过程发生在火山熔岩冷却的过程中，快速的冷却阻止了较大晶体的形成，导致sanidine（正长石）呈现出玻璃状的外观。其独特的纹理和成分使其成为识别火山岩的关键矿物。 在地质学中，岩石样本中sanidine（正长石）的存在可以表明该岩石起源于火山环境。例如，流纹岩通常含有大量的sanidine，这帮助地质学家对一个地区的火山活动进行分类和理解。此外，sanidine还可以用于放射性同位素测定，因为它通常含有微量的放射性同位素，可以为其所在岩石提供年龄估算。 对sanidine（正长石）的研究超出了其地质意义。它在考古学和人类学等多个领域也有重要影响。例如，分析考古遗址中的sanidine可以帮助研究人员确定文物的年代以及火山地区人类活动的历史背景。这种跨学科的方法突显了sanidine（正长石）在理解地球地质过程以及揭示人类历史方面的重要性。 此外，sanidine（正长石）具有独特的物理特性，使其在科学研究中颇具趣味。它表现出完美的解理，即可以沿特定平面断裂，这可能会影响它在各种应用中的使用。其玻璃状的光泽和透明度使得sanidine（正长石）在某些装饰应用中具有审美吸引力。此外，它的化学成分允许研究不同温度和压力条件下的矿物稳定性，从而丰富了我们对矿物学的理解。 总之，sanidine（正长石）不仅仅是一种矿物；它是研究地质过程、人类历史和材料科学的关键元素。其独特的特征和形成过程为我们提供了了解过去的窗口，揭示了我们星球的动态特性。通过研究sanidine（正长石），科学家们能够更好地理解塑造我们世界的力量，使其成为学术研究和实际应用中的重要主题。随着我们继续探索和了解这种迷人的矿物，我们将揭示更多关于地质、历史和人类之间复杂联系的内容。