Skip Navigation

This Article
Right arrow Full Text Freely available
Right arrow FREE Full Text (PDF) Freely available
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Search for citing articles in:
ISI Web of Science (1)
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by MUKHERJEE, A.
Right arrow Articles by DAS, S.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Journal of Petrology | Volume 43 | Number 10 | Pages 1975-1978 | 2002
© Oxford University Press 2002

The Plagioclase–Magma Density Paradox Re-examined and the Crystallization of Proterozoic Anorthosites: a Discussion

AMALBIKASH MUKHERJEE1,* and SUBHASISH DAS2

125/1 SUBODH PARK, BANSDRONI, KOLKATA-700070, INDIA
2DEPARTMENT OF GEOLOGY AND GEOPHYSICS, INDIAN INSTITUTE OF TECHNOLOGY, KHARAGPUR-721302, INDIA

Received October 23, 2001; Revised typescript accepted December 18, 2001

The first 150 words of the full text of this article appear below.


   INTRODUCTION
 
Scoates (2000) presents a wealth of information on the blocks in the Poe Mountain anorthosite, and offers a genetic hypothesis for the anorthositic laminate-block build-up through deposition, both in situ and from above, on the sloping floor of the magma chamber. Furthering yet once again the unending debate on the massif-type anorthosites, let us at once state our preferred view, namely, that diapiric transport from depth, and not growth on the floor of a magma chamber, is the major process responsible for the currently visible, overall architecture of the Poe Mountain anorthosite. Our arguments relate to three areas of contention: (1) preferred orientation of the blocks; (2) petrographic and chemical relationships of the blocks and the host rocks; (3) an alternative, and possibly more acceptable, genetic model.


   SHAPE FABRIC OF THE BLOCKS
 
The blocks in the Poe Mountain anorthosite display a shape fabric. Their flat sides seem to be aligned parallel to the layers . . . [Full Text of this Article]


   BLOCK–HOST-ROCK CHEMICAL AND MINERALOGICAL RELATIONS
 

   AN ALTERNATIVE MODEL
 

Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 J PetrologyHome page
J. S. SCOATES
The Plagioclase-Magma Density Paradox Re-examined and the Crystallization of Proterozoic Anorthosites: a Reply
J. Petrology, October 1, 2002; 43(10): 1979 - 1983.
[Full Text] [PDF]