Part B

Rockin'

No question, rocks are my favorite part of geology. Sounds dumb, but it's true: there are so many cool-lookin' rocks out there! The following section is a review of a few of them.

Xenolith Dr. Bob

Titus Canyon Todd

South Mtn Rick

Figure 16-3.

MCC geology students and faculty looking at rocks!

Dr. Bob finds a few peridotite xenolith samples in eastern Arizona (left). Todd studies a conglomerate unit along the Titus Canyon Road in Death Valley NP (center). Rick inspects the Estrella Gneiss in South Mountain Regional Park in Phoenix, AZ (right).

 

Leighty 2020B Igneous Rock Chart

see PDF HERE

Leighty 2020 Sedimentary Rock Chart

see PDF HERE

Leighty 2020 Metamorphic Rock Chart

see PDF HERE

Table 16-1. The identification charts for igneous, sedimentary, and metamorphic rocks.


Rock Textures

Rock texture refers to the size and arrangement of crystals or clasts and is critical in the description and interpretation of igneous, sedimentary, and metamorphic rocks. Quiz Me! questions B14 through B17 are combined into two Pairs activities worth 2 points each and involve matching the rock with its correct texture. If necessary, refer to the rock classification charts.

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Rock Characteristics

Quiz Me! questions B18 through B21 involve matching each rock with its various characteristics like texture, composition, and environmental interpretation. If necessary, refer to the rock classification charts. Each activity is worth 2 points.

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Igneous Rock ID

Identification of igneous rocks is the goal of Quiz Me! questions B22 through B25. If necessary, refer to the igneous rock classification chart. Each activity is worth 2 points.

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Sedimentary Rock ID

Identification of sedimentary rocks is the goal of Quiz Me! questions B26 through B29. If necessary, refer to the sedimentary rock classification chart. Each activity is worth 2 points.

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Metamorphic Rock ID

Identification of metamorphic rocks is the goal of Quiz Me! questions B30 through B33. If necessary, refer to the metamorphic rock classification chart. Each activity is worth 2 points.

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