What are the 3 factors of porosity?

What are the 3 factors of porosity?

The principal factors that control porosity are grain size and shape, the degree of sorting (a well-sorted sediment has a narrow range of grain size), the extent to which cement occupies the pore spaces of grains and the amount of fracturing.

What is the example of porosity?

A sponge is an example of a porous material as it has a large number of empty spaces compared to its volume. Porosity is the property of an object that expresses the total volume of empty or pore space in the material.

What are the examples of secondary porosity?

Secondary Porosity

• Dolomite.
• Mudstone.
• Siltstone.
• Porosity.
• Sandstone.
• Feldspar.
• Cementation.
• Aquifer.

What is primary and secondary porosity?

Primary porosity is represented by the spaces between grains in a sediment or sedimentary rock. Secondary porosity is porosity that has developed after the rock has formed. It can include fracture porosity — space within fractures in any kind of rock.

What is porosity material?

Porosity or void fraction is a measure of the void (i.e. “empty”) spaces in a material, and is a fraction of the volume of voids over the total volume, between 0 and 1, or as a percentage between 0% and 100%.

What porosity means?

Porosity is defined as the ratio of the volume of pores to the volume of bulk rock and is usually expressed as a percentage.

How many types of porosity are there?

Seven porosity types (interparticle, intraparticle, intercrystal, moldic, fenestral, fracture, and vugs) are common and volumetrically important.

What are the different types of membranes permeability?

4.1: Membrane Permeability

• Facilitated Diffusion.
• Active Transport.
• Osmosis: Water Permeability. Isotonic Solutions (Cinside = Coutside) Hypotonic Solutions (Cinside > Coutside) Hypertonic Solutions (Cinside < Coutside)

What are the four types of permeable membrane?

What are the 5 types of membrane transport?

Membrane Transport

• Introduction. Life depends on a membrane’s ability to precisely control the level of solutes in the aqueous compartments, inside and outside, bathing the membrane.
• Simple Passive Diffusion.
• Facilitated Diffusion.
• Active Transport.
• Ionophores.