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Clastic sedimentary rocks are primarily classified on the basis of?
particle size
Sedimentary rocks formed from broken fragments of other rocks are?
These are known as clastic or detrital sedimentary rocks. Depending on the size of the clasts they may be claystones (< 4 micro m), siltstones (grain size between 4 and 64 micro m) or sandstones (grain size between 64 micro m and 2 mm). If formed of angular fragments larger than 2mm in a finer grained matrix, this type of rock is known as a breccia. If the fragments are rounded, and larger than 2mm then it is a conglomerate.
Why is sediment size alone not enough to classify clastic rock?
becuse sediment alone is not enough to classify clastic rock because clastic rock is made up of more than just sediment
What is true about the texture of all detrital sedimentary rocks?
Clastic rocks have a 'clastic texture', which means they consist of clasts. The 3D orientation of these clasts is called the fabric of the rock. Between the clasts the rock can be composed of a matrix or a cement (the latter can consist of crystals of one or more precipitated minerals). The size and form of clasts can be used to determine the velocity and direction of current in the sedimentary environment where the rock was formed; fine, calcareous mud only settles in quiet water, while gravel and larger clasts are only deposited by rapidly moving water.[10][11] The grain size of a rock is usually expressed with the Wentworth scale, though alternative scales are used sometimes. The grain size can be expressed as a diameter or a volume, and is always an average value - a rock is composed of clasts with different sizes. The statistical distribution of grain sizes is different for different rock types and is described in a property called the sorting of the rock. When all clasts are more or less of the same size, the rock is called 'well-sorted', when there is a large spread in grain size, the rock is called 'poorly sorted'
Does obsidian have a large grain size or a small grain?
Neither. It has no visible grain.
What are the types of clastic rocks?
Clastic Sedimentary rocks can be classified on the basis of grain size as: 1. Rudaceous 2. Arenaceous 3. Argillaceous
Clastic sedimentary rocks are primarily classified on the basis of?
particle size
What clastic rock is made of different sized rock fragment?
All clastic rocks are made up by rock fragments of different size. Siliciclastic rocks (rocks composed chiefly of broken up silicate material) are classified depending on what the predominant grain size is, how wide the spread in grain size is, what the form of the grains are and what the contributing minerals are. Very badly sorted clastic rocks with rounded fragments chiefly of gravel size is called conglomerate. Well sorted silicate material, mainly of sizes between 0.1 to 0.2 mm diameter, is called sandstone (made up of fine sand).
What is the particle size of clastic sedimentary rocks?
Shale is composed of the smallest particles of other rocks.
What is the relationship between grain size and strength in metal?
the relationship between grain size and strength can be determined by the Hall- Patch relationship of Strength of materials.
Sedimentary rocks formed from broken fragments of other rocks are?
These are known as clastic or detrital sedimentary rocks. Depending on the size of the clasts they may be claystones (< 4 micro m), siltstones (grain size between 4 and 64 micro m) or sandstones (grain size between 64 micro m and 2 mm). If formed of angular fragments larger than 2mm in a finer grained matrix, this type of rock is known as a breccia. If the fragments are rounded, and larger than 2mm then it is a conglomerate.
How are clastic rocks grouped?
Clastic rocks are grouped based on the size of the grains of sediment contained within them.
What is the difference between maize-flour and maize-meal?
the size of the grain
The types of clastic sedimentary rock are based on?
crystal size
What is obsidian's grain size?
there is no visible grain size
Why is sediment size alone not enough to classify clastic rock?
becuse sediment alone is not enough to classify clastic rock because clastic rock is made up of more than just sediment
What is the difference between clastic and chemical rocks?
Clastic: These rocks are composed predominantly of broken pieces of older weathered and eroded rocks Non-clastic/ Organic: A sedimentary rock composed of the remains of plants and animals.
