thin section

简明释义

薄剖面

英英释义

例句

1.During the lab session, students learned how to create a thin section 薄片 from a larger rock specimen.

在实验课上，学生们学习如何从较大的岩石标本中制作薄片 thin section。

2.To analyze the biological samples, the scientist prepared a thin section 薄片 of the tissue.

为了分析生物样本，科学家准备了一块组织的薄片 thin section。

3.The geologist examined the rock sample under a microscope, focusing on the thin section 薄片 to identify its mineral composition.

地质学家在显微镜下检查岩石样本，专注于薄片 thin section以确定其矿物成分。

4.The thin section 薄片 allows for detailed observation of the crystal structure in minerals.

该薄片 thin section允许对矿物中的晶体结构进行详细观察。

5.In petrology, a thin section 薄片 is essential for studying the textures of igneous rocks.

在岩石学中，薄片 thin section对于研究火成岩的纹理至关重要。

作文

The study of geology often requires a detailed examination of rock samples to understand their composition and structure. One of the most effective methods for achieving this is through the use of a thin section. A thin section is a slice of rock or mineral that has been ground down to a thickness of about 30 micrometers. This process allows geologists to observe the minerals under a polarizing microscope, making it easier to identify various components and assess their relationships within the rock. The ability to analyze a thin section provides invaluable insights into the geological history of an area, including information about past environmental conditions and the processes that formed the rocks.When preparing a thin section, the rock sample is first carefully selected based on its characteristics and the information needed from it. After selection, the sample is cut into a rough slab using a diamond saw. This slab is then mounted onto a glass slide, and further grinding and polishing are performed until the desired thickness is achieved. The final product is a thin section that is transparent enough to allow light to pass through, enabling the examination of the mineral content.The examination of a thin section under a microscope reveals a wealth of information. Geologists can identify individual minerals by their optical properties, such as color, birefringence, and pleochroism. These properties help in distinguishing between different minerals and understanding their arrangement within the rock. For instance, in sedimentary rocks, a thin section may show how grains are packed together, indicating whether the rock was formed in a high-energy environment like a river or a low-energy setting like a lake.Moreover, the study of thin sections is not limited to just identifying minerals; it also involves analyzing textures and structures. For example, the presence of certain textures can suggest specific geological processes, such as metamorphism or crystallization. By examining these features, geologists can reconstruct the history of the rock and infer the conditions under which it formed.In addition to geological applications, thin sections are also utilized in other fields such as archaeology and materials science. In archaeology, thin sections of pottery or stone tools can provide insights into ancient manufacturing techniques and trade routes. In materials science, the analysis of thin sections allows researchers to study the microstructure of metals and polymers, which is crucial for understanding their properties and performance.In conclusion, the use of a thin section is a fundamental technique in geology and other scientific disciplines. It enables detailed observation and analysis of materials at a microscopic level, leading to a deeper understanding of their composition and formation. Whether investigating the history of the Earth or studying ancient artifacts, thin sections serve as vital tools that bridge the gap between macro and micro-scale observations. As technology advances, the methods of preparing and analyzing thin sections will continue to evolve, providing even more precise data and fostering new discoveries in various fields of study.

地质学的研究通常需要对岩石样本进行详细检查，以了解其成分和结构。实现这一目标的最有效方法之一是使用薄片。薄片是将岩石或矿物切割成厚度约为30微米的切片。这个过程使地质学家能够在偏振显微镜下观察矿物，从而更容易识别各种成分并评估它们在岩石中的关系。分析薄片的能力提供了对一个地区地质历史的宝贵见解，包括有关过去环境条件和形成岩石的过程的信息。在准备薄片时，首先根据特征和所需信息仔细选择岩石样本。选定后，使用金刚石锯将样本切成粗略的板材。然后将该板材安装在玻璃载玻片上，进一步研磨和抛光，直到达到所需的厚度。最终产品是一个薄片，透明到足以让光线通过，从而能够检查矿物含量。在显微镜下检查薄片揭示了大量信息。地质学家可以通过光学特性（如颜色、双折射和变色）来识别单个矿物。这些特性有助于区分不同的矿物并理解它们在岩石中的排列。例如，在沉积岩中，薄片可能显示颗粒如何紧密堆积，指示岩石是在像河流这样的高能环境中形成的，还是在像湖泊这样的低能环境中形成的。此外，薄片的研究不仅限于识别矿物；还涉及分析纹理和结构。例如，某些纹理的存在可以暗示特定的地质过程，如变质作用或结晶。通过检查这些特征，地质学家可以重建岩石的历史，并推断出其形成的条件。除了地质应用，薄片还被用于考古学和材料科学等其他领域。在考古学中，陶器或石器的薄片可以提供关于古代制造技术和贸易路线的见解。在材料科学中，分析薄片使研究人员能够研究金属和聚合物的微观结构，这对理解其特性和性能至关重要。总之，使用薄片是一种地质学和其他科学学科中的基本技术。它使在微观水平上对材料进行详细观察和分析成为可能，从而深入了解其成分和形成过程。无论是调查地球的历史还是研究古代文物，薄片都是连接宏观和微观观察的重要工具。随着技术的进步，准备和分析薄片的方法将继续发展，提供更精确的数据，并促进各个研究领域的新发现。