Is Precambarian Granite A Sedimentary Rock

Granite is a light colored igneous rock with grains large enough to be visible with the unaided eye.

Is precambarian granite a sedimentary rock.

Granite is not the kind of rock that would form into sandstone. Precambrian precambrian greenstones and granites. Magnesian komatiites are for the most part absent however. Sedimentary rocks form as a result of weathering and deposition from previously formed rocks and are usually much softer than igneous or metamorphic rocks.

It forms due to crystallization from magma. Basement rock is the thick foundation of ancient and oldest metamorphic and igneous rock that forms the crust of continents often in the form of granite. After the precambrian geologic time intervals are commonly subdivided on the basis of the fossil record. They are composed of precambrian basement similar to that exposed in shields but overlain by 1 to 3 km of relatively undeformed sedimentary rock.

Sedimentary rocks on platforms range in age from precambrian to cenozoic and reach thicknesses up to 5 km as for instance in the williston basin in the north central united states. One easy way to. It forms from the slow crystallization of magma below earth s surface. No granite is an igneous rock.

Sedimentary rock rock formed at or near the earth s surface by the accumulation and lithification of sediment or by the precipitation from solution at normal surface temperatures. Greenstone granite belts such as those of the archean continued to form in the proterozoic albeit in greatly reduced amounts. Basement rock is contrasted to overlying sedimentary rocks which are laid down on top of the basement rocks after the continent was formed such as sandstone and limestone the sedimentary rocks which may be deposited on. They are characterized by abundant volcanic rocks that include pillowed subaqueous basalt flows and subaerial and subaqueous volcaniclastic rocks.

Precambrian precambrian precambrian geology. Sandstone is a sedimentary rock that is worn away by dirt and dust rubbing against it in the wind.