What Factors Can Affect The Texture Of A Sedimentary Rock

What Factors Can Affect The Texture Of A Sedimentary Rock?

Textures of Sedimentary Rocks
  • The strength of the wind or water currents that carry and deposit the sediment. …
  • The distance transported or time in the transportation process. …
  • Biological activity with the sediment prior to diagenesis. …
  • The chemical environment under which diagenesis occurs.

What determines the texture of a sedimentary rock?

The texture of a rock is the size shape and arrangement of the grains (for sedimentary rocks) or crystals (for igneous and metamorphic rocks). Also of importance are the rock’s extent of homogeneity (i.e. uniformity of composition throughout) and the degree of isotropy.

What are the 3 major texture categories sedimentary rocks?

There are three different types of sedimentary rocks: clastic organic (biological) and chemical. Clastic sedimentary rocks like sandstone form from clasts or pieces of other rock.

What are the factors explaining texture?

Explanation: The term texture is defined as the mutual relationship of different mineralogical constituents in a rock. It is determined by the size shape and arrangement of these constituents within the body of the rock.

What 3 factors determine the characteristics of sedimentary rock?

What three factors determine the characteristics of sedimentary rocks? The source of sediment the way sediment was moved and the conditions that sediment was deposited. How are newly formed sediments transported to new locations? They are transported by wind water or ice.

How can weathering processes affect the sedimentary rocks texture and composition?

Erosion and weathering include the effects of wind and rain which slowly break down large rocks into smaller ones. Erosion and weathering transform boulders and even mountains into sediments such as sand or mud. … These three processes create the raw materials for new sedimentary rocks.

What does it mean if a sedimentary rock has coarse texture?

Coarse-grained clastic rocks are either sedimentary breccias or conglomerates. Medium grained clastic rocks are sandstones. … If there are substantial clay or dark-colored rock fragments visible the sandstone is a graywacke. We can describe the very fine-grained (microclastic) rocks on the basis of another texture.

See also What Is The Main Source Of Pollutants In Photochemical Smog?

What is the texture of igneous rocks?

The texture of an igneous rock made up entirely of crystals big enough to be easily seen with the naked eye is phaneritic. Phaneritic texture is sometimes referred to as coarse-grained igneous texture. Granite the most well known example of an intrusive igneous rock has a phaneritic texture.

See also :  If The Atomic Weight Of Nitrogen Is 14.0, What Is The Mass Of One Mole Of Nitrogen Gas (N2)?

What are the textures of clastic and Nonclastic sedimentary rock quizlet?

What are the textures of clastic and nonclastic sedimentary rock? Clastic rock consists of different discrete fragments cemented together. Nonclastic rock consists of patterns of interlocking crystals.

What is the texture of this metamorphic rock?

TEXTURES Textures of metamorphic rocks fall into two broad groups FOLIATED and NON-FOLIATED. Foliation is produced in a rock by the parallel alignment of platy minerals (e.g. muscovite biotite chlorite) needle-like minerals (e.g. hornblende) or tabular minerals (e.g. feldspars).

What three factors contribute to the texture of an igneous rock?

The three factors that influence the textures of igneous rocks are the speed of cooling the silicate content and the water content. The speed of cooling affects the texture because the faster the rate of cooling the smoother the rock will be (finer texture aphanitic).

What is the most important factor affecting the texture of an igneous rock?

The main factors that can affect the texture of an igneous rock are the location and cooling rate of the hot magma that forms the rock.

What influences the texture of igneous rocks?

Extrusive or volcanic rocks crystallize from lava at the earth’s surface. The texture of an igneous rock (fine-grained vs coarse-grained) is dependent on the rate of cooling of the melt: slow cooling allows large crystals to form fast cooling yields small crystals.

What do sedimentary rocks look like?

Clastic sedimentary rocks may have particles ranging in size from microscopic clay to huge boulders. … Shale is a rock made mostly of clay siltstone is made up of silt-sized grains sandstone is made of sand-sized clasts and conglomerate is made of pebbles surrounded by a matrix of sand or mud.

What are the 4 properties of sedimentary rocks?

Sedimentary rocks can be subdivided into four groups based on the processes responsible for their formation: clastic sedimentary rocks biochemical (biogenic) sedimentary rocks chemical sedimentary rocks and a fourth category for “other” sedimentary rocks formed by impacts volcanism and other minor processes.

See also what are the 4 types of aquatic ecosystems

See also :  What Is An Example Of A Harmful Mutation

What are three things that the sediments in sedimentary rocks may be made of quizlet?

Rocks can be broken down into sediments by air water and living things.

Why is sedimentary rock susceptible to weathering and erosion?

Rock and Mineral Type

Some minerals in a rock might completely dissolve in water. This leaves behind the more resistant minerals which are released from the rock. … Intrusive igneous rocks weather slowly because it is hard for water to penetrate them. Sedimentary rocks usually weather more easily.

How does weathering and erosion affect the rock cycle?

Weathering (breaking down rock) and erosion (transporting rock material) at or near the earth’s surface breaks down rocks into small and smaller pieces. These smaller pieces of rock (such as sand silt or mud) can be deposited as sediments that after hardening or lithifying become sedimentary rocks.

How does rock type affect weathering?

Certain types of rock are very resistant to weathering. Igneous rocks especially intrusive igneous rocks such as granite weather slowly because it is hard for water to penetrate them. Other types of rock such as limestone are easily weathered because they dissolve in weak acids.

Why do rocks have different textures?

Explanation: The faster the magma cools that smaller the crystals that are formed. Some magma from which the igneous rocks is form come from different combinations of remelted igneous rocks metamorphic rocks and sedimentary layers. … The different sources of the melted material affects the textures of the igneous rocks.

Why do we need to consider the texture of minerals in an ore in mineral processing?

Textural recognition and interpretation in addition to providing insight into the history of a deposit may also aid in mineral identification (see Section 3.5)and may supply information valuable to ore milling and beneficiation.

What is the difference between the texture of an igneous rock and the texture of a sedimentary rock?

The texture of igneous rocks depends on how fast it has cooled down. Textures range from coarse-grained to glassy. The texture of sedimentary rocks depends on their clast age and depositional setting. These are generally grainy.

What are the 4 textures and compositions of igneous rocks?

Igneous rocks can be divided into four categories based on their chemical composition: felsic intermediate mafic and ultramafic.

See also What Were The Effects Of The Bantu Migration? Did the Bantu Migration Change Southern Africa?

See also :  How Are Hurricanes Formed Video

How does the texture of igneous rock explain the history of its formation?

The igneous texture tells us how the magma cooled and solidified. Magma can solidify into igneous rock in several different ways each way resulting in a different igneous texture. Magma may stay within the earth far below ground level and crystallize into plutonic igneous rock (also known as intrusive igneous rock).

What is the texture of a rock quizlet?

What is a rock’s texture? It is the look and feel of the rock’s surface. Some rocks are smooth and glassy. Others are rough or chalky.

What are the textures of clastic and Nonclastic sedimentary rocks?

Being deposits of transported mineral grains and/or rock fragments all detrital sediments and sedimentary rocks have clastic textures. Non-clastic textures include the crystalline textures of chemical rocks like chert and evaporites.

Which factors influence the amount of destruction that seismic vibrations cause to human made structures?

Ground shaking is the primary cause of earthquake damage to man-made structures. Many factors influence the strength of earthquake shaking at a site including the earthquake’s magnitude the site’s proximity to the fault the local geology and the soil type.

What is the most characteristic feature of sedimentary rocks?

The single most characteristic feature of sedimentary rocks is horizontal stratification or horizontal beds that are deposited as sediments blanket an area.

What are the factors that affect metamorphism explain each?

The main factors that control metamorphic processes are: The mineral composition of the parent rock. The temperature at which metamorphism takes place. The amount and type of pressure during metamorphism.

What happens to the texture of the rocks when it undergoes metamorphism?

During metamorphism the mineral content and texture of the protolith are changed due to changes in the physical and chemical environment of the rock. Metamorphism can be caused by burial tectonic stress heating by magma or alteration by fluids. … A rock undergoing metamorphism remains a solid rock during the process.

What texture are sedimentary rocks?

Sedimentary Textures