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ERRATA
Notes on the 2001 Edition

Investigation 1: Different Types of Rock

NONE

 

Investigation 2: Rocks and Landforms in Your Region

Rare rock types have been removed. The table below includes rock types that may be most common to students.

NOTE: Rock types in italics are new or moved. The following rock types have been removed from the original table: graywacke, greensand, metabasalt, metabentonite, metadiabase, metarhyolite, norite, troctolite, and harzburgite. Hornfels and peridotite have been added to the table.

Major Rock Types
Sediments and Sedimentary Rocks
Metamorphic Rocks
Igneous Rocks
Intrusive Igneous (Magma)
Extrusive Igneous (Lava/ash)
chert
anthracite coal
anorthosite
andesite
clay/claystone
gneiss
diabase
basalt
coal
marble
diorite
pumice
diatomaceous earth
greenstone
gabbro
obsidian
dolomite
phyllite
granite
rhyolite
gravel/conglomerate
quartzite
migmatite
scoria
limestone (crushed)
serpentinite
pegmatite
tuff (ash)
mudstone
schist
dunite
 
sand/sandstone
slate
peridotite
 
shale
hornfels
 
 
till
 
 
 
outwash
 
 
 
breccia
 
 
 

 

 

Investigation 3: Rocks and Weathering

Page R26, Biological Processes in Weathering

Carbonic acid has not yet been introduced; therefore, the following describes the process as mentioned in the book.

Last line: "The carbon dioxide makes more carbonic acid, which promotes further weathering of the mineral material of the soil."

This weathering process of soil occurs when the carbon dioxide in the air dissolves in rainwater to form a weak acid called carbonic acid. Although this acid is harmless to plants and animals, it is able to dissolve some kinds of minerals within rocks that contain calcium, magnesium, and potassium, like limestones and feldspars. This form of weathering is called carbonization.

 

Investigation 4: Rock Abrasion

NONE

 

Investigation 5: Erosional Landforms

NONE

 

Investigation 6: Deltas and Floodplains

NONE

 

Investigation 7: Glaciers, Erosion, and Deposition

NONE

 

Investigation 8: Rocks, Landforms and Human Activity

NONE

 

 

 

Investigation 1

Investigation 2

Investigation 3

Investigation 4

Investigation 5

Investigation 6

Investigation 7

Investigation 8

Further Research

Errata

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Last updated: January 26, 2009



This project is supported, in part, by the National Science Foundation and the AGI Foundation. Opinions expressed are those of the authors and not necessarily those of the Foundation.




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