GENERAL GEOLOGY

Detailed explanation-1: -Mudstone, shale, and limestone are examples of sedimentary rock likely to contain fossils.

Detailed explanation-2: -Fossils are more common in some kinds of sedimentary rocks than others. There are many factors that can contribute to the likelihood of an organism being preserved as a fossil. Fossils are most common in limestones. That is because most limestones consist partly or mostly of the shells of organisms.

Detailed explanation-3: -With time and pressure, these sediments, such as sand, plant debris, or ash, become compressed into rock. Therefore, fossils are found in sedimentary rock, like sandstone, shale, limestone and coal. Igneous rock, like granite and basalt, is formed by molten rock erupting from deep within the earth.

Detailed explanation-4: -Fossils are typically found in sedimentary rocks and occasionally some fine-grained, low-grade metamorphic rocks.

Detailed explanation-5: -Most fossils “hide out” in sedimentary rock . When tiny bits of rocks and minerals (called sediment) join together over millions of years, they become sedimentary rock. Plants and animals that become sandwiched in this sediment eventually turn into fossils. Two examples of sedimentary rocks are sandstone and shale.