The earth crust is composed of different rocks (95% igneous rock and 10% .(sedimentary and metamorphic rocks
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- Which type of rock is most difficult to excavate? O Conglomerate Igneous Metamorphic SedimentaryWhich type of rock is makes up majority of rock found on earth's surface? Conglomerate Igneous Metamorphic Sedimentaryare resulted when other types of rocks are subjected to extreme pressure and temperature which change their shapes, textures and mineral structures. اخترأحد الخيارات a. Metamorphic rocks b. Igneous rocks c. Sedimentary rocks CLEAR MY CHOICE
- 1.)This type of rock is formed by the process of changing the composition and texture of rocks (without melting) by heat and pressure. 2.) What is the term for the soil particle with microscopic soil fractions that consist of very fine quartz grains and some flake-shaped particles that are fragments of micaceous minerals.Briefly describe the difference between how metamorphic, igneous, in sedimentary rocks form.(a) Silica tetrahedra and alumina octahedra sheets are joined together by sharing oxygen atoms; (b) In a 1:1 type of clay, layers are non-expansive because of the presence of oxygen bond between layers. * A if a is correct B if b is correct C if both statements are correct D if neither statement a nor b are true
- QUESTION 4aTo use rock in engineering applications, certain properties of the rock mass must be assessed to reasonably predict performance in the as-built condition. Discuss the following in the field of rock performance i. Discontinuityii. Elastic deformationiii. Plastic deformationconclusion on chemical properties of rock-forming minerals.Calculate the porosity of a rock that is 50% Quartz, 50% Muscovite, and that has a bulk density of 2.00 3 g/cm when saturated with water. (Density of quartz = 2.65 g/cm³; density of Muscovite = 2.85 g/cm³).
- 4.5 The statements that follow relate to terms describing igneous rock textures. For each statement, identify the appropriate term. a- Openings produced by escaping gases. b- Obsidian exhibits this texture. c- A matrix of fine crystals surrounding phenocrysts. d- A texture characterized by two distinctively different crystal sizes. e-Coarse-grained, with crystals of roughly equal size.The porosity of the sedimentary rocks is high in comparison with other types of rocks. Accordingly, they represent reservoirs for crude oil, natural gas .and groundwater اخترأحد الخيارات أخل اختياريSubject: Geology Give the Tensile strength, Compressive strength, and Shear strength of each of the following igneous rocks: 1. Diabase 2. Diorite 3. Dacite 4. Obsidian 5. Pumice