Skip Nav Destination
Close Modal
![]()
![]()
![]()
Update search
NARROW
Format
Article Type
Journal
Publisher
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
North America
-
Canadian Shield
-
Churchill Province
-
Hearne Province (1)
-
-
-
Great Lakes region (1)
-
Rocky Mountains
-
U. S. Rocky Mountains
-
Little Belt Mountains (1)
-
-
-
-
United States
-
Michigan
-
Michigan Upper Peninsula
-
Gogebic County Michigan (1)
-
Marquette County Michigan (1)
-
-
-
Montana
-
Little Belt Mountains (1)
-
-
U. S. Rocky Mountains
-
Little Belt Mountains (1)
-
-
Wisconsin
-
Langlade County Wisconsin (1)
-
Menominee County Wisconsin (1)
-
Shawano County Wisconsin (1)
-
Wolf River Batholith (1)
-
-
Wyoming Province (1)
-
-
-
geochronology methods
-
Ar/Ar (3)
-
U/Pb (1)
-
-
geologic age
-
Precambrian
-
upper Precambrian
-
Proterozoic
-
Mesoproterozoic (1)
-
Paleoproterozoic (2)
-
-
-
-
-
igneous rocks
-
igneous rocks
-
plutonic rocks
-
syenites (1)
-
-
-
-
metamorphic rocks
-
metamorphic rocks
-
gneisses (1)
-
-
-
minerals
-
silicates
-
chain silicates
-
amphibole group
-
clinoamphibole
-
hornblende (1)
-
-
-
-
orthosilicates
-
nesosilicates
-
zircon group
-
zircon (1)
-
-
-
-
sheet silicates
-
mica group
-
biotite (3)
-
-
-
-
-
Primary terms
-
absolute age (3)
-
crust (1)
-
folds (1)
-
igneous rocks
-
plutonic rocks
-
syenites (1)
-
-
-
intrusions (1)
-
isostasy (1)
-
metamorphic rocks
-
gneisses (1)
-
-
metamorphism (1)
-
North America
-
Canadian Shield
-
Churchill Province
-
Hearne Province (1)
-
-
-
Great Lakes region (1)
-
Rocky Mountains
-
U. S. Rocky Mountains
-
Little Belt Mountains (1)
-
-
-
-
orogeny (1)
-
Precambrian
-
upper Precambrian
-
Proterozoic
-
Mesoproterozoic (1)
-
Paleoproterozoic (2)
-
-
-
-
tectonics (2)
-
United States
-
Michigan
-
Michigan Upper Peninsula
-
Gogebic County Michigan (1)
-
Marquette County Michigan (1)
-
-
-
Montana
-
Little Belt Mountains (1)
-
-
U. S. Rocky Mountains
-
Little Belt Mountains (1)
-
-
Wisconsin
-
Langlade County Wisconsin (1)
-
Menominee County Wisconsin (1)
-
Shawano County Wisconsin (1)
-
Wolf River Batholith (1)
-
-
Wyoming Province (1)
-
-
GeoRef Categories
Era and Period
Date
Availability
1-3 OF 3
Results shown limited to content with bounding coordinates.
Daniel Holm
Close
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
Journal Article
40 Ar/ 39 Ar evidence for ca. 1800 Ma tectonothermal activity along the Great Falls tectonic zone, central Montana
Publisher: Canadian Science Publishing
Published: 11 December 2002
Canadian Journal of Earth Sciences (2002) 39 (12): 1719–1728.
FIGURES
Journal Article
Depth of emplacement and tilting of the Middle Proterozoic (1470 Ma) Wolf River batholith, Wisconsin: 40 Ar/ 39 Ar thermochronologic constraints
Publisher: Canadian Science Publishing
Published: 01 October 1998
Canadian Journal of Earth Sciences (1998) 35 (10): 1143–1151.
Journal Article
On the origin of Early Proterozoic gneiss domes and metamorphic nodes, northern Michigan
Publisher: Canadian Science Publishing
Published: 01 July 1996
Canadian Journal of Earth Sciences (1996) 33 (7): 1053.
