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What is the relationship between basic friction angle and residual friction angle of sandstone?
For rock, the basic friction angle is somewhat less than residual angle. The basic friction strength is that shear resiatance of two smooth surfaces. The residual shear atrength is that for two rough surfaces after long shearing. At residual state, the shear resistance almost keeps constant and no shear-dilation.
What geological processes are implied if a granitic body of rock is found exposed at the surface?
All processes creating the granitic intrusion would be implied: plate tectonics, subduction, melting, buoyancy of magma, cooling of magma. In addition to these processes, you could add uplift, weathering, and erosion.
Is it true Andesitic rock is an igneous rock with a composition in between that of basaltic and granitic igneous rock.?
Yes, andesitic rock is indeed an igneous rock that has a composition situated between basaltic and granitic rocks. It typically contains a moderate amount of silica, ranging from about 57% to 63%, which gives it characteristics that are intermediate between the two. Andesitic rocks are commonly found in volcanic arcs and are often associated with subduction zones.
What is the probable density of the granitic bedrock at q?
The probable density of granitic bedrock is typically around 2.65 grams per cubic centimeter. However, it can vary depending on the composition and porosity of the specific rock.
What is earth composition of the lithosphere?
The lithosphere, or sphere of rock, is made up primarily of granitic and basaltic rock. It averages 100 kilometers in thickness. It is the outermost rigid unit of life.
Friction angle of rock?
Formal answer: The angle of internal friction is measure of the ability of a material (could be rock or soil or whatever) to withstand a shear stress. It is the angle (φ), measured between the normal force (N) and resultant force (R), that is attained when failure just occurs in response to a shearing stress (S). Its tangent (S/N) is the coefficient of sliding friction. Its exact value is determined experimentally. Technical answer: The angle of internal friction is a critical parameter of the Mohr-Coulomb failure criterion: qu = 2*c*tan(45+φ/2), where qu is the unconfined compressive strength of the material (in this case rock), c is the cohesion and φ is the angle of internal friction. Practical answer: Because there are a lot of different types of rocks out there - each with a different geomechanical behavior - it should come as no surprise that there are a lot of different angles of internal friction of rock. The equation that defines the angle at which a material breaks is the (45+φ/2) part of Mohr-Coulomb. It has been observed that many hard materials tend to break in shear at an angle of about 60 degrees during uniaxial compression. So if that tends to be the case, then a good guesstimate for the angle of internal friction of many rocks is 30°. However, bear in mind that the value can vary greatly, less than 10° for some very soft rocks and more than 50° for some very hard rocks.
Is Pumis granitic?
no. pumice is a volcanic rock (igneous)
What rock makes up most of the earth's continents?
Granitic igneous rock.
What is the relationship between basic friction angle and residual friction angle of sandstone?
For rock, the basic friction angle is somewhat less than residual angle. The basic friction strength is that shear resiatance of two smooth surfaces. The residual shear atrength is that for two rough surfaces after long shearing. At residual state, the shear resistance almost keeps constant and no shear-dilation.
Is syenite granitic?
Syenite is not granitic. Quartz is one of the main minerals found in granitic rock. Syenite contains little or no quartz, but otherwise has the same general composition as granite.
What kind of rock is likely to form where the heat from the granitic magma is conducted to the limestone country rock?
The metamorphosed limestone will most likely be a skarn or marble, both formed from contact with an intruding granitic magma.
How does the total internal reflection depend on the angle of incidence of light rays?
Cause light rays rock
How does total internal reflection depend on the angle of incidence of lights rays?
Cause light rays rock
What geological processes are implied if a granitic body of rock is found exposed at the surface?
All processes creating the granitic intrusion would be implied: plate tectonics, subduction, melting, buoyancy of magma, cooling of magma. In addition to these processes, you could add uplift, weathering, and erosion.
How does total internal reflection depend on the angle of incidence of light rays?
Total internal reflection occurs when the angle of incidence is greater than the critical angle. The critical angle is the angle at which the refracted ray would be at 90 degrees to the normal. If the angle of incidence is less than the critical angle, the light ray will be refracted out of the material.
What Granite is a low-density rock that makes up what crust?
Granitic rock forms the majority of the continental crust.
How does granitic rock form?
Granite is an intrusive igneous rock so that means magma cools under ground.
