his is Geology!  Please help me identify the Sedimentry rocks samples below by answer the following questions: 1. Color(s) 2. Texture & Clast Description (grain size, shape, sorting, etc.) 3.  Rock Type (clastic, chemical, organic etc.)   SEDIMENTARY ROCK TYPES: Clastic – Clastic or detrital sedimentary rocks form when bits and pieces of other rocks and minerals are compressed and cemented together so that they form a new, solid rock. An example of a clastic rock that you might be familiar with is sandstone, where bits and pieces of sand have been cemented together. Chemical – Chemical sedimentary rocks form when elements that were dissolved in water are able to crystalize. This can happen via evaporation (example: on a salt flat in the desert) where the water is evaporated but the dissolved elements are left behind, or in a body of water when the right temperatures and pressures are reached to cause crystals to form. An example of a rock forming via crystallization in a body of water would be limestone that forms on the ocean floor. Organic – Organic sedimentary rocks form due to an organism that produces them. This usually happens in the oceans, but can also happen on land in swamps or lakes. Coal in a perfect example of an organic sedimentary rock because the plants die and their remains eventually become coal. Biochemical – Biochemical sedimentary rocks form by a combination of chemical and organic processes.   Remember that sedimentary rocks are classified using their SEDIMENT SIZE and COMPOSTION. SEDIMENT SIZE: sizes range from large to not visible CLASTIC ROCK TEXTURES: sorting, sphericity, and rounding

This is Geology! 

Please help me identify the Sedimentry rocks samples below by answer the following questions:

1. Color(s)

2. Texture & Clast Description (grain size, shape, sorting, etc.)

3.  Rock Type (clastic, chemical, organic etc.)

SEDIMENTARY ROCK TYPES:

Clastic – Clastic or detrital sedimentary rocks form when bits and pieces of other rocks and minerals are compressed and cemented together so that they form a new, solid rock. An example of a clastic rock that you might be familiar with is sandstone, where bits and pieces of sand have been cemented together.

Chemical – Chemical sedimentary rocks form when elements that were dissolved in water are able to crystalize. This can happen via evaporation (example: on a salt flat in the desert) where the water is evaporated but the dissolved elements are left behind, or in a body of water when the right temperatures and pressures are reached to cause crystals to form. An example of a rock forming via crystallization in a body of water would be limestone that forms on the ocean floor.

Organic – Organic sedimentary rocks form due to an organism that produces them. This usually happens in the oceans, but can also happen on land in swamps or lakes. Coal in a perfect example of an organic sedimentary rock because the plants die and their remains eventually become coal.

Biochemical – Biochemical sedimentary rocks form by a combination of chemical and organic processes.

Remember that sedimentary rocks are classified using their SEDIMENT SIZE and COMPOSTION.

SEDIMENT SIZE: sizes range from large to not visible

CLASTIC ROCK TEXTURES: sorting, sphericity, and rounding