Back to Search Start Over

40Ar/39Ar thermochronology of Mesoproterozoic metamorphism in the Colorado Front Range.

Authors :
Shaw, Colin A.
Snee, Lawrence W.
Source :
Journal of Geology; Jan1999, Vol. 107 Issue 1, p49, 19p, 1 Diagram, 2 Charts, 10 Graphs, 2 Maps
Publication Year :
1999

Abstract

Presents a 40Ar/39Ar thermochronological analysis of Mesoproterozoic metamorphism in the Colorado Front Rage. Presence of staurolite, andalusite, cordierite, and garnet porphyroblasts overprinting earlier assemblages; Interpretation of muscovite and biotite ages; Observation of thermal effects for plutons, suggesting pervasive, regional crustal heating.

Details

Language :
English
ISSN :
00221376
Volume :
107
Issue :
1
Database :
Complementary Index
Journal :
Journal of Geology
Publication Type :
Academic Journal
Accession number :
1771361
Full Text :
https://doi.org/10.1086/314335