terrigenous

简明释义

英[teˈrɪdʒɪnəs]美[teˈrɪdʒɪnəs]

adj. （海洋沉积）陆生的；陆地的

英英释义

单词用法

同义词

反义词

例句

1.The volcanic rocks associated with the terrigenous elastic rocks and intrabasinal sedimentary rocks predominate in the Devonian strata in the Ashele and Chonghur regions, Xinjiang.

新疆阿舍勒、冲乎尔地区泥盆纪地层以火山岩为主，伴有陆源碎屑岩和内源沉积岩。

2.The distribution pattern is also strongly affected by the sediment type, and radiolarian abundance and diversity decrease with the increase of grain size and terrigenous material input.

沉积物类型极大地影响着放射虫的分布，放射虫的丰度和分异度明显地随粒度的增大和陆源物质含量的增加而减小。

3.Fangniushan quartzite series consist of coarse terrigenous clastic rock which has been suffered the metamorphism of low green schist facies, contact lines of its top and base are distinct.

放牛山石英岩系为经低绿片岩相变质的粗陆源碎屑岩。顶、底界线清晰，与下伏太古宙变质花岗岩系及上覆中元古界熊耳群均呈角度不整合接触。

4.The extremely poor mineralization occurred in the late clastic sedimentary stage, and corresponds to the sedimentation process of the terrigenous clastics.

在晚期碎屑沉积阶段，主要表现为陆源碎屑沉积作用，成矿作用相对甚弱。

5.As cement, authigenic mineral or vein, dawsonite is found not only in Marine dolomite and oil shale, but also in terrigenous fragmentary rock and coal measures.

片钠铝石作为胶结物、自生矿物或脉体，不仅分布在海相白云岩、油页岩中，而且还广泛分布在陆源碎屑岩及煤系地层中。

6.The geochemical characterizes of metamorphic detrital rock show their source rocks were terrigenous detrital rocks .

岩石的地球化学特征表明其原岩为一套陆源碎屑岩。

7.What does the terrigenous sediment consist of?

陆源沉积物是由什么组成的？

8.The Shishan and Fengshan deposits, two main ore deposits in the Yimen copper ore district, were long considered to be of terrigenous metamorphosed sedimentary origin.

长期以来，云南易门铜矿区中的狮山和凤山铜矿床被认为是陆源沉积变质成因。

9.The study focused on the impact of terrigenous 陆源的 runoff on coastal ecosystems.

这项研究集中在陆源的径流对沿海生态系统的影响。

10.The terrigenous 陆源的 sediments were transported to the ocean by strong river currents.

这些陆源的沉积物是通过强劲的河流流动运输到海洋的。

11.The sediment in this region is primarily composed of terrigenous 陆源的 materials.

该地区的沉积物主要由陆源的材料组成。

12.Geologists often analyze terrigenous 陆源的 deposits to understand past environmental conditions.

地质学家通常分析陆源的沉积物以了解过去的环境条件。

13.Many marine organisms rely on terrigenous 陆源的 nutrients that flow into the ocean from rivers.

许多海洋生物依赖于从河流流入海洋的陆源的营养物质。

作文

In the study of geology and oceanography, the term terrigenous refers to sediments and materials that originate from land. These materials are transported to the ocean or other bodies of water through various processes such as erosion, river transport, and atmospheric deposition. Understanding terrigenous contributions is crucial for scientists as they analyze sedimentary environments and the overall health of marine ecosystems. The journey of terrigenous sediments begins on land, where weathering and erosion break down rocks into smaller particles. This can happen due to natural elements like wind, rain, and ice, which wear away at the surface of the earth. Over time, these particles are carried away by rivers and streams, eventually making their way to the ocean. Here, they settle on the seabed, where they can accumulate over thousands of years. One of the most significant sources of terrigenous sediments is river systems. Rivers transport a vast amount of material from inland areas to the ocean, particularly during periods of heavy rainfall or flooding. This influx of sediments can have profound effects on coastal environments, influencing everything from habitat formation to nutrient cycling. For instance, deltas, which are formed by the accumulation of terrigenous sediments at river mouths, are incredibly fertile regions that support diverse ecosystems. Moreover, the composition of terrigenous sediments can vary greatly depending on the geological characteristics of the land they come from. For example, sediments derived from volcanic regions may contain a high proportion of ash and other volcanic materials, while those from mountainous areas might be rich in quartz and other hard minerals. Understanding these variations helps researchers reconstruct past environmental conditions and assess the impacts of human activities, such as deforestation and urbanization, on sediment transport. In addition to their geological significance, terrigenous sediments play a vital role in marine biology. They provide essential nutrients that support the growth of phytoplankton, the foundation of the marine food web. When terrigenous materials are washed into the ocean, they can enhance productivity in nutrient-poor areas, leading to blooms of phytoplankton that attract various marine species. However, excessive input of terrigenous sediments, often due to human activities, can lead to problems such as sedimentation, which smothers coral reefs and disrupts marine habitats. Furthermore, understanding the dynamics of terrigenous sediment transport is vital for managing coastal regions. As sea levels rise and climate change alters weather patterns, the behavior of rivers and the movement of sediments are likely to change. This could lead to increased erosion in some areas and sedimentation in others, affecting both natural ecosystems and human infrastructure. Coastal managers must consider these factors when planning for sustainable development and conservation efforts. In conclusion, the term terrigenous encapsulates a fundamental aspect of sedimentology that connects terrestrial and marine environments. By studying terrigenous sediments, scientists can gain insights into geological processes, environmental changes, and the intricate relationships within ecosystems. As we continue to face challenges related to climate change and human impact, understanding the role of terrigenous materials will be essential for fostering resilient ecosystems and sustainable coastal management.

在地质学和海洋学的研究中，术语terrigenous指的是起源于陆地的沉积物和材料。这些材料通过侵蚀、河流运输和大气沉降等各种过程被运输到海洋或其他水体。理解terrigenous的贡献对于科学家分析沉积环境和海洋生态系统的整体健康至关重要。terrigenous沉积物的旅程始于陆地，天气和侵蚀将岩石分解成更小的颗粒。这可能是由于风、雨和冰等自然元素的作用，使地球表面遭受磨损。随着时间的推移，这些颗粒被河流和溪流带走，最终进入海洋。在这里，它们在海床上沉淀，可能在数千年内积累。河流系统是terrigenous沉积物最重要的来源之一。河流在大雨或洪水期间从内陆地区向海洋运输大量材料。这种沉积物的涌入可能对沿海环境产生深远的影响，影响从栖息地形成到营养循环的各个方面。例如，由于在河口处沉积的terrigenous沉积物形成的三角洲是极其肥沃的区域，支持着多样化的生态系统。此外，terrigenous沉积物的组成可能因其来源地的地质特征而异。例如，来自火山地区的沉积物可能含有较高比例的火山灰和其他火山材料，而来自山区的沉积物则可能富含石英和其他坚硬矿物。理解这些变异有助于研究人员重建过去的环境条件，并评估人类活动（如森林砍伐和城市化）对沉积物运输的影响。除了其地质意义外，terrigenous沉积物在海洋生物学中也发挥着重要作用。它们提供了支持浮游植物生长的必要营养物质，浮游植物是海洋食物链的基础。当terrigenous材料被冲入海洋时，它们可以在营养贫乏的区域增强生产力，导致吸引各种海洋物种的浮游植物繁殖。然而，过量输入的terrigenous沉积物，通常是由于人类活动，会导致如沉积等问题，淹没珊瑚礁并破坏海洋栖息地。此外，理解terrigenous沉积物运输的动态对于管理沿海地区至关重要。随着海平面上升和气候变化改变天气模式，河流的行为和沉积物的运动可能会发生变化。这可能导致某些地区的侵蚀加剧，而其他地区则沉积增加，影响自然生态系统和人类基础设施。沿海管理者在规划可持续发展和保护工作时必须考虑这些因素。总之，术语terrigenous概括了连接陆地和海洋环境的沉积学的基本方面。通过研究terrigenous沉积物，科学家可以深入了解地质过程、环境变化以及生态系统内部的复杂关系。随着我们继续面临与气候变化和人类影响相关的挑战，理解terrigenous材料的作用对于促进生态系统的韧性和可持续的沿海管理将至关重要。