at the beginning of time (see rock cycle)
http://en.wikipedia.org/wiki/Rock_cycle
Sedimentary rock formation begins with igneous, metamorphic, or other sedimentary rocks. When these rocks are exposed at the earth's surface they begin the long slow but relentless process of becoming sedimentary rock.
Sedimentary rock starts as sediment.
Sedimentary rocks form as pieces of loose material get pressed or cemented together. The process of forming sedimentary rocks is lithification.
They are called clastic sedimentary rocks.
Usually, sometimes sedimentary rocks can be found creating on the side of pool's. And even though sedimentary rock is small, they can be used for big thing. Like houses, or even sculptures. 6 billion years ago when the earth was forming there were no Sedimentary rocks, as well as metamorphic, but there were igneous rocks. It was 3.9 billion years ago when the first sedimentary rocks began to appear!
Sedimentary rock formation begins with igneous, metamorphic, or other sedimentary rocks. When these rocks are exposed at the earth's surface they begin the long slow but relentless process of becoming sedimentary rock.
Sedimentary rock starts as sediment.
weathering of preexisting rocks form clastic sedimentary rocks, Oversaturated water basins form chemical sedimentary rocks after the water evaporates and dead sea organisms settle at the bottom forming biochemical sedimentary rocks.
as fragments of rock
Geo-thermal force is needed in forming the sedimentary rocks. The fragments of igneous rocks by erosion are carried by water currents and deposited in the basin for millions of years. The upheaval in the earth strata bring these deposits deep. The pressure of earth mass and its heat converts these deposits in to sedimentary rocks. The red sand stone is the best example of sedimentary rock formation.
SEDIMENTARY ROCK FORMATION, begins with igneous, metamorphic, or other sedimentary rocks. When these rocks are exposed at the earth's surface they begin the long but relentless process of becoming sedimentary rock.
Bituminous coal and breccia are sedimentary rocks. They begin with the letter b.
Sedimentary rocks form as pieces of loose material get pressed or cemented together. The process of forming sedimentary rocks is lithification.
They are called clastic sedimentary rocks.
Usually, sometimes sedimentary rocks can be found creating on the side of pool's. And even though sedimentary rock is small, they can be used for big thing. Like houses, or even sculptures. 6 billion years ago when the earth was forming there were no Sedimentary rocks, as well as metamorphic, but there were igneous rocks. It was 3.9 billion years ago when the first sedimentary rocks began to appear!
Metamorphic rocks are classified by foliation or lack there of, not sedimentary rocks. They are classified into Clastic Sedimentary, and Chemical Sedimentary.
Yes, sedimentary rocks are being formed right now. Sediment is continually being deposited by erosion and transported by wind, water, and ice. Over time, these sediments are compacted and cemented together to form new layers of sedimentary rock.