calcitic cementation

简明释义

1. 钙质胶结; 2. 钙质胶结作用;

英英释义

例句

1.In limestone environments, calcitic cementation can significantly affect porosity.

在石灰岩环境中，方解石水泥化可以显著影响孔隙度。

2.The presence of calcitic cementation in a rock sample indicates previous mineral precipitation.

岩石样本中存在方解石水泥化表明之前发生了矿物沉淀。

3.During the analysis, we found evidence of calcitic cementation in the core samples.

在分析过程中，我们在岩心样本中发现了方解石水泥化的证据。

4.Geologists study calcitic cementation to understand the diagenesis of sedimentary rocks.

地质学家研究方解石水泥化以理解沉积岩的成岩作用。

5.The formation of sandstone often involves calcitic cementation, which helps to bind the grains together.

砂岩的形成通常涉及方解石水泥化，这有助于将颗粒结合在一起。

作文

Calcitic cementation is a crucial geological process that significantly influences the formation and characteristics of sedimentary rocks. This process involves the precipitation of calcite, a mineral composed primarily of calcium carbonate (CaCO3), within the pore spaces of sediment. As sediments accumulate over time, they are subjected to pressure and chemical changes, leading to the formation of cement that binds the particles together. Understanding calcitic cementation (方解石胶结作用) is essential for geologists and paleontologists, as it affects porosity, permeability, and the overall structural integrity of rock formations.The significance of calcitic cementation (方解石胶结作用) can be observed in various geological settings. For instance, in marine environments, where biological activity is high, organisms like corals and mollusks contribute to the accumulation of calcium carbonate. Over time, these materials can undergo calcitic cementation (方解石胶结作用), resulting in the formation of limestone, a rock that is widely used in construction and industry.In addition to its role in rock formation, calcitic cementation (方解石胶结作用) also plays a vital role in the diagenesis of sedimentary rocks. Diagenesis refers to the physical and chemical changes that occur in sediments after their deposition and during their conversion into rock. The presence of calcite cement can enhance the mechanical strength of rocks, making them more resistant to erosion and weathering. This is particularly important in regions where sedimentary rocks are exposed to harsh environmental conditions.Moreover, calcitic cementation (方解石胶结作用) has implications for hydrocarbon reservoirs. The porosity of a rock, which determines its ability to store fluids, can be significantly altered by the presence of calcite cement. In some cases, excessive cementation can reduce porosity and permeability, making it less favorable for oil and gas extraction. Therefore, understanding the extent and nature of calcitic cementation (方解石胶结作用) is crucial for energy resource management.Researchers employ various techniques to study calcitic cementation (方解石胶结作用), including petrographic analysis, scanning electron microscopy, and geochemical methods. These tools allow scientists to analyze the mineral composition, texture, and distribution of calcite within sedimentary rocks. By examining these factors, geologists can infer the depositional environment and the history of the rock formation.In conclusion, calcitic cementation (方解石胶结作用) is a fundamental process in geology that impacts the formation, characteristics, and functionality of sedimentary rocks. Its influence extends beyond mere rock formation; it plays a critical role in diagenesis, resource management, and environmental resilience. As our understanding of this process deepens, it will undoubtedly enhance our ability to utilize natural resources sustainably and protect geological formations from adverse effects.

方解石胶结作用是一个重要的地质过程，它显著影响沉积岩的形成和特性。这个过程涉及方解石的沉淀，方解石是一种主要由碳酸钙（CaCO3）组成的矿物，在沉积物的孔隙中沉淀。随着沉积物的积累，它们会受到压力和化学变化的影响，从而形成将颗粒结合在一起的胶结物。理解方解石胶结作用（calcitic cementation）对地质学家和古生物学家至关重要，因为它影响了岩石的孔隙度、渗透性以及整体结构完整性。方解石胶结作用（calcitic cementation）的意义可以在各种地质环境中观察到。例如，在海洋环境中，生物活动较高，珊瑚和软体动物等生物会促进碳酸钙的积累。随着时间的推移，这些材料可以经历方解石胶结作用（calcitic cementation），最终形成石灰岩，这是一种广泛用于建筑和工业的岩石。除了在岩石形成中的作用外，方解石胶结作用（calcitic cementation）在沉积岩的成岩作用中也发挥着重要作用。成岩作用是指沉积物在沉积后及其转变为岩石过程中发生的物理和化学变化。方解石胶结的存在可以增强岩石的机械强度，使其更能抵抗侵蚀和风化。这在沉积岩暴露于恶劣环境条件的地区尤为重要。此外，方解石胶结作用（calcitic cementation）对碳氢化合物储层也有重要影响。岩石的孔隙度决定了其储存流体的能力，而方解石胶结的存在可能会显著改变孔隙度和渗透性。在某些情况下，过度的胶结会降低孔隙度和渗透性，使其在石油和天然气开采中不太有利。因此，理解方解石胶结作用（calcitic cementation）的程度和性质对于能源资源管理至关重要。研究人员采用各种技术来研究方解石胶结作用（calcitic cementation），包括岩石薄片分析、扫描电子显微镜和地球化学方法。这些工具使科学家能够分析沉积岩中方解石的矿物组成、纹理和分布。通过研究这些因素，地质学家可以推断沉积环境和岩石形成的历史。总之，方解石胶结作用（calcitic cementation）是地质学中的一个基本过程，影响沉积岩的形成、特性和功能。它的影响不仅限于岩石形成；在成岩作用、资源管理和环境韧性方面也发挥着关键作用。随着我们对这一过程理解的加深，无疑将增强我们可持续利用自然资源和保护地质构造免受不良影响的能力。