abyssal fractionation

简明释义

深海分异作用;

英英释义

例句

1.Geologists often refer to abyssal fractionation 深渊分馏 when analyzing deep-sea sediment samples.

地质学家在分析深海沉积物样本时常常提到深渊分馏。

2.Understanding abyssal fractionation 深渊分馏 helps in predicting volcanic activity.

理解深渊分馏有助于预测火山活动。

3.Researchers studied the effects of abyssal fractionation 深渊分馏 on oceanic crust formation.

研究人员研究了深渊分馏对海洋地壳形成的影响。

4.The study of abyssal fractionation 深渊分馏 can provide insights into the Earth's mantle processes.

对深渊分馏的研究可以提供关于地球地幔过程的见解。

5.The concept of abyssal fractionation 深渊分馏 is crucial for understanding magma differentiation.

深渊分馏的概念对于理解岩浆分异至关重要。

作文

In the field of geology, particularly in the study of igneous rocks and magmatic processes, the term abyssal fractionation plays a crucial role in understanding how different minerals crystallize from molten rock at varying depths. abyssal fractionation（深渊分馏）是指在地壳深处，尤其是在海洋底部，由于温度和压力的变化，岩浆在冷却过程中发生的分离现象。这一过程不仅影响了岩石的成分，还对地球的地质演化产生了深远的影响。 To comprehend abyssal fractionation, it is essential to first grasp the concept of magma formation. Magma, which is molten rock beneath the Earth's surface, originates from the partial melting of the mantle or crust due to various geological processes. As magma rises towards the surface, it encounters different pressures and temperatures, leading to the crystallization of minerals at different stages. This crystallization process is where abyssal fractionation becomes significant. During abyssal fractionation, specific minerals begin to crystallize out of the magma as it cools and solidifies. For instance, olivine and pyroxene are among the first minerals to form at high temperatures. As these minerals crystallize, they remove certain elements from the remaining liquid magma, altering its composition. This selective crystallization can lead to the formation of a variety of rock types, depending on the conditions present during the cooling process. One of the key aspects of abyssal fractionation is its impact on the geochemical characteristics of the resulting rocks. As different minerals crystallize and settle out of the magma, the remaining liquid becomes enriched in certain elements while being depleted in others. This process can result in the formation of economically important mineral deposits, such as nickel, copper, and platinum group metals, which are often associated with mafic and ultramafic rocks formed through abyssal fractionation. Moreover, abyssal fractionation is not only limited to the formation of minerals but also plays a significant role in the evolution of magmatic systems over time. For example, as the composition of the magma changes due to the removal of certain minerals, it may become more silica-rich, leading to the formation of different rock types, such as granite. This transition highlights the dynamic nature of magmatic processes and the importance of abyssal fractionation in shaping the Earth's crust. In summary, abyssal fractionation is a fundamental process in geology that describes the crystallization and separation of minerals from magma as it cools at great depths. This phenomenon not only influences the mineral composition of igneous rocks but also has significant implications for the geochemical evolution of the Earth's crust. Understanding abyssal fractionation is vital for geologists as they seek to unravel the complexities of Earth's geological history and the formation of valuable mineral resources. Through continued research and exploration, we can gain deeper insights into the processes that govern our planet's geology, ultimately contributing to our knowledge of Earth's past and future.

在地质学领域，尤其是在火成岩和岩浆过程的研究中，术语abyssal fractionation（深渊分馏）在理解不同矿物如何在不同深度从熔融岩石中结晶方面发挥着关键作用。abyssal fractionation是指在地壳深处，尤其是在海洋底部，由于温度和压力的变化，岩浆在冷却过程中发生的分离现象。这一过程不仅影响了岩石的成分，还对地球的地质演化产生了深远的影响。要理解abyssal fractionation，首先需要掌握岩浆形成的概念。岩浆是位于地球表面下的熔融岩石，源自由于各种地质过程而导致的地幔或地壳的部分熔融。当岩浆朝向地表上升时，它会遇到不同的压力和温度，导致不同阶段的矿物结晶。这一结晶过程是abyssal fractionation变得重要的地方。在abyssal fractionation过程中，特定的矿物开始在岩浆冷却和固化时从中结晶出来。例如，橄榄石和辉石是最早在高温下形成的矿物之一。当这些矿物结晶时，它们会从剩余的液态岩浆中去除某些元素，从而改变其成分。这种选择性结晶可以导致根据冷却过程中存在的条件形成多种岩石类型。abyssal fractionation的一个关键方面是其对形成的岩石的地球化学特征的影响。随着不同矿物的结晶并从岩浆中沉淀，剩余的液体在某些元素上变得富集，而在其他元素上则变得贫乏。这个过程可能导致经济重要的矿产资源的形成，例如与通过abyssal fractionation形成的基性和超基性岩石相关的镍、铜和铂族金属矿床。此外，abyssal fractionation不仅限于矿物的形成，还在时间上对岩浆系统的演化起着重要作用。例如，随着由于某些矿物的去除而导致岩浆成分的变化，它可能变得富含二氧化硅，从而导致不同岩石类型的形成，例如花岗岩。这种转变突显了岩浆过程的动态性质以及abyssal fractionation在塑造地壳方面的重要性。总之，abyssal fractionation是地质学中的一个基本过程，描述了岩浆在深处冷却时矿物的结晶和分离。该现象不仅影响火成岩的矿物成分，还有对地球地壳的地球化学演化具有重要意义。理解abyssal fractionation对于地质学家来说至关重要，因为他们试图揭示地球地质历史的复杂性以及有价值的矿产资源的形成。通过持续的研究和探索，我们可以更深入地了解支配我们星球地质的过程，最终为我们对地球过去和未来的认识做出贡献。