lithologic triangle

简明释义

岩性三角图解;

英英释义

例句

1.In our field study, the lithologic triangle helped us identify the dominant rock types.

在我们的实地研究中，岩石三角形帮助我们识别了主要的岩石类型。

2.The geologist used the lithologic triangle to classify the sedimentary rocks in the area.

地质学家使用岩石三角形来分类该地区的沉积岩。

3.Understanding the lithologic triangle allows for more accurate geological mapping.

理解岩石三角形可以使地质绘图更加准确。

4.By analyzing the lithologic triangle, we can better understand the composition of the rock layers.

通过分析岩石三角形，我们可以更好地理解岩层的成分。

5.The lithologic triangle is a valuable tool for petrologists when describing rock samples.

对于描述岩石样本而言，岩石三角形是岩石学家一个宝贵的工具。

作文

The study of geology is essential for understanding the Earth's composition and the processes that shape our planet. One important concept within this field is the lithologic triangle, which serves as a visual representation of the relationships between different types of rocks. The lithologic triangle is a triangular diagram that illustrates the proportions of three primary rock types: igneous, sedimentary, and metamorphic. Each corner of the triangle represents one of these rock types, while the area within the triangle shows how these rocks can be mixed or transformed into one another.To fully grasp the significance of the lithologic triangle, it is crucial to understand the characteristics of each rock type. Igneous rocks are formed from the cooling and solidification of magma or lava. They are typically classified into two categories: intrusive and extrusive. Intrusive igneous rocks, such as granite, cool slowly beneath the Earth's surface, resulting in larger crystals. In contrast, extrusive igneous rocks, like basalt, cool quickly on the surface, leading to smaller crystals.Sedimentary rocks, on the other hand, are formed from the accumulation of sediments, which can include fragments of other rocks, minerals, and organic material. These rocks often exhibit distinct layers and are commonly found in environments such as riverbeds, lakes, and oceans. Examples of sedimentary rocks include sandstone, limestone, and shale.Metamorphic rocks are created when existing rocks (igneous, sedimentary, or even other metamorphic rocks) undergo changes due to high pressure, high temperature, or chemically active fluids. This process, known as metamorphism, can alter the mineral composition and texture of the original rock. Common examples of metamorphic rocks include schist, gneiss, and marble.The lithologic triangle not only helps geologists classify rocks but also aids in understanding geological processes and the history of the Earth. By examining the proportions of the three rock types in a given area, scientists can infer the geological history and the conditions under which the rocks formed. For instance, a predominance of sedimentary rocks may indicate a region that was once covered by water, while a high percentage of igneous rocks could suggest volcanic activity in the past.Moreover, the lithologic triangle is a valuable tool in various applications, including natural resource exploration and environmental studies. Understanding the distribution of rock types can help locate resources such as oil, gas, and minerals, which are often found in specific geological settings. Additionally, knowledge of rock types and their properties can inform construction practices, land use planning, and hazard assessment in areas prone to landslides or earthquakes.In conclusion, the lithologic triangle is a fundamental concept in geology that enhances our understanding of the Earth's materials and their interrelationships. By studying this triangle, we gain insight into the processes that have shaped our planet over millions of years. The lithologic triangle not only serves as a classification system but also provides valuable information for practical applications in resource management and environmental protection.

地质学的研究对于理解地球的组成和塑造我们星球的过程至关重要。在这个领域中，一个重要的概念是岩石三角形，它作为不同类型岩石之间关系的视觉表现。岩石三角形是一个三角形图示，它说明了三种主要岩石类型的比例：火成岩、沉积岩和变质岩。三角形的每个角代表一种岩石类型，而三角形内部的区域则显示这些岩石如何混合或转化为彼此。要充分理解岩石三角形的重要性，首先必须了解每种岩石类型的特征。火成岩是由岩浆或熔岩的冷却和固化形成的。它们通常分为两类：侵入性和喷出性。侵入性火成岩，如花岗岩，在地球表面下缓慢冷却，导致较大的晶体。相比之下，喷出性火成岩，如玄武岩，迅速在表面冷却，导致较小的晶体。另一方面，沉积岩是由沉积物的积累形成的，这些沉积物可以包括其他岩石、矿物和有机材料的碎片。这些岩石通常呈现出明显的层次，常见于河床、湖泊和海洋等环境。沉积岩的例子包括砂岩、石灰岩和页岩。变质岩是当现有岩石（火成岩、沉积岩或甚至其他变质岩）因高压、高温或化学活性流体而发生变化时形成的。这一过程称为变质作用，可以改变原始岩石的矿物组成和纹理。常见的变质岩包括片岩、变质岩和大理石。岩石三角形不仅帮助地质学家对岩石进行分类，还帮助理解地质过程和地球的历史。通过检查给定区域内三种岩石类型的比例，科学家可以推断出地质历史及岩石形成的条件。例如，沉积岩的占主导地位可能表明该地区曾被水覆盖，而高比例的火成岩可能暗示过去的火山活动。此外，岩石三角形在自然资源勘探和环境研究等多个应用中也是一个有价值的工具。了解岩石类型的分布可以帮助定位油气和矿物等资源，这些资源通常存在于特定的地质环境中。此外，了解岩石类型及其特性可以为建筑实践、土地利用规划以及在滑坡或地震易发地区的危害评估提供信息。总之，岩石三角形是地质学中的一个基本概念，它增强了我们对地球材料及其相互关系的理解。通过研究这个三角形，我们获得了对塑造我们星球数百万年来的过程的深入了解。岩石三角形不仅作为分类系统，还为资源管理和环境保护的实际应用提供了宝贵的信息。