A possible protolith for Sample M5 is: a. diorite b. quartz c. limestone d. shale e. sandstone

Name: Problem 19, Chapter 11: Laboratory Manual for Introductory Geology
Uploaded: 2021-04-30T01:31:24-08:00
Duration: 59 s
Channel: Joanna Quigley
Description: A possible protolith for Sample M5 is: a. diorite b. quartz c. limestone d. shale e. sandstone

step 1 Where do we usually find fossils? Is it A in basal, B in limestone, C in slate, D in granite, or

A possible protolith for Sample M5 is: a. diorite b. quartz...

Key Concepts

Sedimentary Rocks

Sedimentary rocks are formed by the accumulation and lithification of sediment particles, which can include minerals from preexisting rocks. These rocks are also potential protoliths for metamorphic rocks, as their original sedimentary features and minerals may be transformed under metamorphic conditions.

Igneous Rocks

Igneous rocks form from the cooling and solidification of magma or lava. They are one of the primary rock types that can serve as protoliths for metamorphic rocks, since the original igneous textures and mineral assemblages can be altered significantly during metamorphism.

Rock Classification

Rock classification is the system of categorizing rocks based on their origin into three main groups: igneous, sedimentary, and metamorphic. Understanding these classifications aids geologists in determining the evolutionary history of a rock, including identifying possible protoliths and the nature of metamorphic transformations.

Metamorphism

Metamorphism is the process in which rocks undergo physical and chemical changes due to variations in temperature, pressure, and the presence of chemically active fluids. This process transforms the mineral composition and fabric of the original rock (protolith), yielding new metamorphic rocks with distinct characteristics.

Protolith

The term protolith refers to the original rock before it undergoes metamorphism. Identifying the protolith is crucial in metamorphic petrology because the composition, texture, and structure of the initial rock strongly influence the resultant metamorphic processes and the properties of the metamorphic rock.

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