Quick
Search: 		  
advanced search
 GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help 
Geology Signup for GSW Email News
JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Geology; May 1994; v. 22; no. 5; p. 435-438; DOI: 10.1130/0091-7613(1994)022<0435:FOMPAD>2.3.CO;2
© 1994 Geological Society of America
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Glazner, A. F.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation

Foundering of mafic plutons and density stratification of continental crust

Allen F. Glazner1

1 Department of Geology, CB# 3315, University of North Carolina, Chapel Hill, North Carolina 27599

Mafic magmas rising into the middle crust are typically trapped in wall rocks of similar density. Upon crystallization their densities increase significantly, and the resulting plutons have a large negative buoyancy. Calculations indicate that plutons of even modest size will sink at rates on the order of several kilometres per million years in typical middle and lower crust. This foundering process accounts for the widespread stable density stratification of the crust in spite of magmatic processes that should lead to density inversions.




This article has been cited by other articles:


Home page
 J PetrologyHome page
C. ANNEN, J. D. BLUNDY, and R. S. J. SPARKS
The Genesis of Intermediate and Silicic Magmas in Deep Crustal Hot Zones
J. Petrology, March 1, 2006; 47(3): 505 - 539.
[Abstract] [Full Text] [PDF]

Home page
 Geological Society of America Special PapersHome page
J. C. Bushey, A. W. Snoke, C. G. Barnes, and C. D. Frost
Geology of the Bear Mountain intrusive complex, Klamath Mountains, California
Geological Society of America Special Papers, January 1, 2006; 410(0): 287 - 315.
[Abstract] [Full Text] [PDF]

Home page
 J PetrologyHome page
T. PLANK
Constraints from Thorium/Lanthanum on Sediment Recycling at Subduction Zones and the Evolution of the Continents
J. Petrology, May 1, 2005; 46(5): 921 - 944.
[Abstract] [Full Text] [PDF]

Home page
 Geological Society, London, Special PublicationsHome page
B. Bonin, R. Ethien, M. C. Gerbe, J. Y. Cottin, G. Feraud, D. Gagnevin, A. Giret, G. Michon, and B. Moine
The Neogene to Recent Rallier-du-Baty nested ring complex, Kerguelen Archipelago (TAAF, Indian Ocean): stratigraphy revisited, implications for cauldron subsidence mechanisms
Geological Society, London, Special Publications, January 1, 2004; 234(1): 125 - 149.
[Abstract] [PDF]

Home page
 J PetrologyHome page
J. B. WHALEN, J. A. PERCIVAL, V. J. McNICOLL, and F. J. LONGSTAFFE
A Mainly Crustal Origin for Tonalitic Granitoid Rocks, Superior Province, Canada: Implications for Late Archean Tectonomagmatic Processes
J. Petrology, August 1, 2002; 43(8): 1551 - 1570.
[Abstract] [Full Text] [PDF]

Home page
 J PetrologyHome page
J. Longhi, J. V. Auwera, M. S. Fram, and J.-C. Duchesne
Some Phase Equilibrium Constraints on the Origin of Proterozoic (Massif) Anorthosites and Related Rocks
J. Petrology, February 1, 1999; 40(2): 339 - 362.
[Abstract] [Full Text] [PDF]

Home page
 Geological Society, London, Special PublicationsHome page
A. F. Glazner
Exposure of deep, dense rocks: interplay between erosion and sinking
Geological Society, London, Special Publications, January 1, 1999; 154(1): 233 - 239.
[Abstract] [PDF]


JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2009 by Geological Society of America