Here's a breakdown of the types of sedimentary rocks formed above ground:
Clastic Sedimentary Rocks:
* Conglomerate: Formed from rounded gravel-sized fragments.
* Breccia: Formed from angular gravel-sized fragments.
* Sandstone: Formed from sand-sized fragments.
* Siltstone: Formed from silt-sized fragments.
* Claystone/Shale: Formed from clay-sized fragments.
Chemical Sedimentary Rocks:
* Limestone: Formed from the accumulation of calcium carbonate shells and skeletal fragments.
* Rock Salt: Formed from the evaporation of saltwater.
* Gypsum: Formed from the evaporation of saltwater, but with a higher sulfur content.
* Chert: Formed from the accumulation of silica (SiO2), often from the remains of microscopic organisms.
Organic Sedimentary Rocks:
* Coal: Formed from the accumulation and compression of plant matter.
* Oil Shale: Formed from the accumulation of organic matter in fine-grained sediments.
Other Notable Types:
* Tuff: Formed from the accumulation of volcanic ash.
* Evaporites: Formed from the evaporation of water bodies, leaving behind minerals.
It's important to remember that some of these rocks can also form in other environments, including underwater.
