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Sedimentary Rocks

Sedimentary Rocks. These rocks are formed by ______________ and _______________. Sedimentary rocks form in ______________. Water soaking down through the ground carrying natural cements (______________ and ________________). 1. Clastic Sedimentary Rocks

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Sedimentary Rocks

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  1. Sedimentary Rocks

  2. These rocks are formed by ______________ and _______________. • Sedimentary rocks form in ______________. • Water soaking down through the ground carrying natural cements (______________ and ________________)

  3. 1. Clastic Sedimentary Rocks • These rocks form from fragments of other rocks • Ex. Conglomerate, breccia, sandstone, shale • 2. Chemical Sedimentary Rocks • These rocks form by ________________ and _______________________. • Limestone, gypsum 3 Types of Sedimentary Rocks

  4. 3. Organic Sedimentary Rocks • Form from the remains of living things • Ex. Coal, coquina

  5. Metamorphic Rocks

  6. These rocks are formed by putting tremendous _____________ and ____________ on existing rocks. • Always formed from an existing rock • Classified into 2 groups:foliated and unfoliated. • Folliated rocks have visible layers or bands • Ex. Gneiss, schist, slate • Unfolliated: no visible layers or bands. • Ex. Marble Metamorphic rocks

  7. 1. Contact Metamorphism • When magma pushes through existing rock, the heat • from the magma changes the mineral composition of the surrounding rock • Only the rock actually touch by magma is changed 2 Major Types of Metamorphism

  8. 2. Regional Metamorphism • Metamorphic change over hundreds of square miles • Caused by____________________________

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