Types Of Texture Of Rocks

There are three basic types of sedimentary rocks.

Types of texture of rocks. Properties of igneous rock textures. The texture of a rock is the size shape and arrangement of the grains for sedimentary rocks or crystals for igneous. The main factor that determines the texture of an igneous rock is the cooling rate dt dt. The sedimentary rock textures chart on the following illustrates the major sedimentary rock textures.

There is no agreed number of specific types of rocks. Andesitic compositions are somewhere between basaltic and granitic in density color and the explosive nature of an eruption. Yosemite made from granitic rock. There are nine main types of igneous rock textures.

You can help by adding to it. Click each image to see a larger version plus information about the rock s texture. What are sedimentary rocks. The texture of igneous rocks can be analyzed to understand how the rock became solid or crystallized from liquid melted rock.

Other factors involved are. The following is a list of rock types recognized by geologists. An estimate of the distribution of rock types in large structural units of the terrestrial crust is given in the table. For example granite a common rock is a combination of the minerals quartz feldspar and biotite.

The relative abundance of main rock types and minerals in the crust is shown in the table. The diffusion rate the rate at which atoms or molecules can move diffuse through the liquid. Phaneritic vesicular aphanitic porphyritic poikilitic glassy pyroclastic equigranular and spinifex. Each kind of texture has a variety of different characteristics that make them unique.

Igneous rocks are identified by knowing two main features texture and color. Additionally different classification systems exist for each major type of rock. Below we define a few of the terms geologists use to describe these textures. Below is a list of the different types of igneous rock texture.

Chemical sedimentary rocks such as rock salt iron ore chert flint some dolomites and some limestones form when. Add details to your answers for question 1. Types of surface textures stones. This page is intended to be a list of rock textural and morphological terms.

Clastic sedimentary rocks such as breccia conglomerate sandstone siltstone and shale are formed from mechanical weathering debris. Any unique combination of chemical composition mineralogy grain size texture or other distinguishing characteristics can describe a rock type. Rock or stone is a natural substance a solid aggregate of one or more minerals or mineraloids. This section is empty.

The earth s outer solid layer the lithosphere is made of rock. Rock has been used by mankind throughout history.