allochthonous coal

简明释义

异地生成煤;

英英释义

例句

1.In studying sedimentary basins, researchers found significant amounts of allochthonous coal (外源煤) that contributed to the region's energy resources.

在研究沉积盆地时，研究人员发现了大量的allochthonous coal（外源煤），这为该地区的能源资源做出了贡献。

2.Environmental assessments often consider the impact of allochthonous coal (外源煤) mining on local ecosystems.

环境评估通常考虑allochthonous coal（外源煤）开采对当地生态系统的影响。

3.The energy output from allochthonous coal (外源煤) can vary significantly depending on its source and composition.

来自allochthonous coal（外源煤）的能量输出可能因其来源和成分而有显著差异。

4.The geologist explained that the region's deposits of allochthonous coal (外源煤) were formed from organic materials transported from distant locations.

地质学家解释说，该地区的allochthonous coal（外源煤）沉积物是由来自远处的有机材料运输而成的。

5.The presence of allochthonous coal (外源煤) in the area indicates a complex geological history involving multiple sources of organic matter.

该地区存在的allochthonous coal（外源煤）表明其复杂的地质历史涉及多种有机物来源。

作文

Coal is one of the most significant fossil fuels that has powered industries and homes for centuries. Among the various types of coal, allochthonous coal plays a crucial role in understanding the geological processes involved in coal formation. To comprehend what allochthonous coal is, we need to explore its definition and significance in the context of coal geology. Allochthonous coal refers to coal that has formed from organic material that was transported from its original location to where it is eventually deposited. This process involves the movement of plant debris, which may have originated from different ecosystems, often brought together by water or wind. Unlike autochthonous coal, which forms in situ from the accumulation of plant material in the same location, allochthonous coal reflects a more complex history of environmental change and transport.The formation of allochthonous coal can be attributed to several factors, including geological events, climatic changes, and the ecological dynamics of ancient landscapes. For instance, during periods of flooding, plant materials from surrounding areas can be washed into low-lying regions, where they accumulate and eventually transform into coal over millions of years. This transport mechanism can lead to a diverse mix of plant materials in the coal deposits, making allochthonous coal distinct from its autochthonous counterpart.Understanding allochthonous coal is vital for geologists and energy resource managers. It provides insights into the paleoecological conditions that existed during the coal's formation. By studying the composition of allochthonous coal, scientists can infer the types of vegetation that were present, the climate at that time, and how these factors influenced coal quality. Additionally, the presence of allochthonous coal can indicate the historical movement of sediments and the shifting landscapes over geological timescales.Moreover, the economic implications of allochthonous coal are significant. Regions rich in this type of coal can be valuable sources of energy, contributing to local economies and industries. However, the extraction and use of coal, including allochthonous coal, raise environmental concerns. The burning of coal releases greenhouse gases, and mining operations can disrupt local ecosystems. Therefore, understanding the nature of allochthonous coal not only enhances our knowledge of geological processes but also informs sustainable practices in coal utilization.In conclusion, allochthonous coal is an essential component of the coal classification system, representing coal that has been transported from its original site of formation. Its study offers valuable insights into past environments and geological processes while highlighting the importance of responsible energy resource management. As we continue to rely on fossil fuels, understanding the complexities of allochthonous coal will help us navigate the challenges of energy production and environmental sustainability.

煤是几世纪以来推动工业和家庭的重要化石燃料之一。在各种类型的煤中，异地煤在理解煤的形成地质过程方面发挥着关键作用。要理解异地煤的含义，我们需要探讨其定义及其在煤地质学中的重要性。异地煤是指由有机物质形成的煤，这些有机物质从其原始位置运输到最终沉积的位置。这一过程涉及植物残骸的移动，这些残骸可能源自不同的生态系统，通常是通过水或风带到一起的。与原位形成的自生煤不同，异地煤反映了环境变化和运输的更复杂历史。异地煤的形成可以归因于多种因素，包括地质事件、气候变化和古代景观的生态动态。例如，在洪水期间，来自周围地区的植物材料可以被冲入低洼区域，在那里积累并最终在数百万年内转变为煤。这一运输机制可以导致煤层中植物材料的多样混合，使得异地煤与其自生对等物区别开来。理解异地煤对地质学家和能源资源管理者至关重要。它提供了有关煤形成时存在的古生态条件的见解。通过研究异地煤的成分，科学家可以推断出当时存在的植被类型、气候以及这些因素如何影响煤的质量。此外，异地煤的存在可以指示沉积物的历史运动和地质时间尺度上景观的变化。此外，异地煤的经济意义也很重要。富含这种类型煤的地区可以成为宝贵的能源来源，为当地经济和产业做出贡献。然而，煤的提取和使用，包括异地煤，引发了环境问题。燃烧煤炭会释放温室气体，而采矿作业可能会干扰当地生态系统。因此，理解异地煤的性质不仅增强了我们对地质过程的知识，还为煤的可持续利用实践提供了信息。总之，异地煤是煤分类系统的一个重要组成部分，代表了从其形成的原始地点运输而来的煤。对其研究提供了对过去环境和地质过程的宝贵见解，同时强调了负责任的能源资源管理的重要性。随着我们继续依赖化石燃料，理解异地煤的复杂性将帮助我们应对能源生产和环境可持续性面临的挑战。