diagenetic deformation

简明释义

1. 成岩变形; 2. 成岩形变作用;

英英释义

例句

1.In this region, diagenetic deformation 成岩变形 has significantly altered the original sedimentary structures.

在这个地区，成岩变形显著改变了原始沉积结构。

2.The presence of diagenetic deformation 成岩变形 can indicate past tectonic activity in sedimentary basins.

在沉积盆地中，成岩变形的存在可能指示过去的构造活动。

3.Geologists analyze diagenetic deformation 成岩变形 to understand the history of rock formation in a given area.

地质学家分析成岩变形以了解特定区域的岩石形成历史。

4.Researchers have documented the effects of diagenetic deformation 成岩变形 on porosity and permeability in reservoir rocks.

研究人员记录了成岩变形对储层岩石孔隙度和渗透率的影响。

5.The study of sedimentary rocks often reveals signs of diagenetic deformation 成岩变形 that occurred after their initial deposition.

沉积岩的研究常常揭示出在初次沉积后发生的成岩变形的迹象。

作文

The study of geological processes reveals a multitude of phenomena that shape the Earth's crust over time. Among these processes, diagenetic deformation plays a crucial role in the transformation of sediments into sedimentary rocks. This process encompasses various physical and chemical changes that occur after sediment deposition but before lithification, which is the process of turning loose sediments into solid rock. Understanding diagenetic deformation is essential for geologists as it influences the properties of sedimentary rocks, including their porosity and permeability, which are critical factors in fields such as petroleum geology and groundwater studies.To grasp the concept of diagenetic deformation, one must first consider the various stages of sedimentary rock formation. Initially, sediments accumulate in layers, often in environments like riverbeds, lakes, or ocean floors. As these layers build up, the weight of overlying materials exerts pressure on the lower layers, leading to compaction. Compaction is one aspect of diagenetic deformation, where the volume of sediments decreases due to the expulsion of water and air from the pore spaces between grains.In addition to compaction, diagenetic deformation also includes cementation, where minerals precipitate from groundwater and fill the spaces between sediment grains, effectively binding them together. This process significantly enhances the strength and durability of the resulting rock. However, diagenetic deformation does not stop at compaction and cementation; it can also involve more complex alterations, such as recrystallization and the development of new mineral phases under varying temperature and pressure conditions.Moreover, the effects of diagenetic deformation can vary widely depending on the geological environment and the composition of the original sediments. For instance, clay-rich sediments may undergo different diagenetic pathways compared to those rich in quartz or carbonates. The presence of organic material can also influence the diagenetic processes, leading to the formation of hydrocarbons in some cases.The implications of diagenetic deformation extend beyond academic interest; they have practical significance in resource exploration and environmental geology. In petroleum geology, understanding the diagenetic history of reservoir rocks is vital for predicting the location and quantity of oil and gas deposits. Similarly, in groundwater studies, the porosity and permeability affected by diagenetic deformation determine how easily water can flow through aquifers, influencing water supply and management strategies.In conclusion, diagenetic deformation is a fundamental process that transforms sediments into sedimentary rocks through compaction, cementation, and other alterations. Its study provides valuable insights into the geological history of an area and informs practical applications in resource exploration and environmental management. As we continue to explore the complexities of our planet, the significance of diagenetic deformation remains ever pertinent, underscoring the dynamic nature of Earth's geological processes.

地质过程的研究揭示了许多塑造地球地壳的现象。在这些过程中，成岩变形在沉积物转变为沉积岩的过程中发挥着至关重要的作用。这个过程包括沉积物沉积后但在岩石化之前发生的各种物理和化学变化。理解成岩变形对地质学家至关重要，因为它影响沉积岩的性质，包括孔隙度和渗透性，这些都是石油地质学和地下水研究等领域的关键因素。要理解成岩变形的概念，首先必须考虑沉积岩形成的各个阶段。最初，沉积物在河床、湖泊或海洋底等环境中以层状积累。随着这些层的堆积，上覆材料的重量对下层施加压力，导致压实。压实是成岩变形的一个方面，其中沉积物的体积因水和空气从颗粒间的孔隙中排出而减少。除了压实，成岩变形还包括胶结，即矿物从地下水中沉淀并填充沉积颗粒之间的空间，有效地将其结合在一起。这个过程显著增强了形成岩石的强度和耐久性。然而，成岩变形并不仅限于压实和胶结；它还可能涉及更复杂的变化，例如重结晶和在不同温度和压力条件下新矿物相的形成。此外，成岩变形的影响可能因地质环境和原始沉积物的成分而异。例如，富含粘土的沉积物可能经历与富含石英或碳酸盐的沉积物不同的成岩路径。有机物的存在也会影响成岩过程，在某些情况下导致烃的形成。成岩变形的影响不仅限于学术兴趣；它在资源勘探和环境地质学中具有实际意义。在石油地质学中，了解储层岩石的成岩历史对于预测油气储量和位置至关重要。同样，在地下水研究中，成岩变形影响的孔隙度和渗透性决定了水流过含水层的难易程度，从而影响水资源供应和管理策略。总之，成岩变形是一个基本过程，通过压实、胶结和其他变化将沉积物转变为沉积岩。其研究提供了对某一区域地质历史的宝贵见解，并为资源勘探和环境管理的实际应用提供了信息。随着我们继续探索地球的复杂性，成岩变形的重要性仍然显而易见，强调了地球地质过程的动态特性。