Page 143 - Laboratory Manual in Physical Geology
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A CTIVIT Y 4.4 What Is Rock Texture?
Name: ______________________________________ Course/Section: ______________________ Date: ___________
A. Review the following list of textures on page 117 . Below each sample, write the name of every one of these textures it
contains. Be prepared to compare your observations with the observations of the other geologists. (All samples x1.)
Glassy Fine-grained Crystalline (heterogranular) Clastic (angular) Layered (fl at)
Vesicular Coarse-grained Crystalline (equigranular) Clastic (rounded) Layered (foliated)
Bioclastic Layered (folded)
Clastic (gravely, sandy, silty, clayey)
1 2 3
4 5 6
7 8 9
10 11 12
124
