NDLI logo
  • Content
  • Similar Resources
  • Metadata
  • Cite This
  • Log-in
  • Fullscreen
Log-in
Do not have an account? Register Now
Forgot your password? Account recovery
  1. Contributions to Mineralogy and Petrology
  2. Contributions to Mineralogy and Petrology : Volume 157
  3. Contributions to Mineralogy and Petrology : Volume 157, Issue 6, June 2009
  4. The Skaergaard liquid line of descent revisited
Loading...

Please wait, while we are loading the content...

Contributions to Mineralogy and Petrology : Volume 171
Contributions to Mineralogy and Petrology : Volume 170
Contributions to Mineralogy and Petrology : Volume 169
Contributions to Mineralogy and Petrology : Volume 168
Contributions to Mineralogy and Petrology : Volume 167
Contributions to Mineralogy and Petrology : Volume 166
Contributions to Mineralogy and Petrology : Volume 165
Contributions to Mineralogy and Petrology : Volume 164
Contributions to Mineralogy and Petrology : Volume 163
Contributions to Mineralogy and Petrology : Volume 162
Contributions to Mineralogy and Petrology : Volume 161
Contributions to Mineralogy and Petrology : Volume 160
Contributions to Mineralogy and Petrology : Volume 159
Contributions to Mineralogy and Petrology : Volume 158
Contributions to Mineralogy and Petrology : Volume 157
Contributions to Mineralogy and Petrology : Volume 157, Issue 6, June 2009
Sulphur solubility in andesitic to basaltic melts: implications for Hekla volcano
Petrogenesis of mafic and associated silicic end-member magmas for calc-alkaline mixed rocks in the Shirataka volcano, NE Japan
The Skaergaard liquid line of descent revisited
Large calcite and bulk-rock volume loss in metacarbonate xenoliths from the Quérigut massif (French Pyrenees)
H2O diffusion in peralkaline to peraluminous rhyolitic melts
High-temperature hydrothermal alteration of the Boehls Butte anorthosite: origin of a bimodal plagioclase assemblage
Decompression and H2O exsolution driven crystallization and fractionation: development of a new model for low-pressure fractional crystallization in calc-alkaline magmatic systems
Petrology, geochemistry and U–Pb zircon geochronology of lower crust pyroxenites from northern Apennine (Italy): insights into the post-collisional Variscan evolution
Contributions to Mineralogy and Petrology : Volume 157, Issue 5, May 2009
Contributions to Mineralogy and Petrology : Volume 157, Issue 4, April 2009
Contributions to Mineralogy and Petrology : Volume 157, Issue 3, March 2009
Contributions to Mineralogy and Petrology : Volume 157, Issue 2, February 2009
Contributions to Mineralogy and Petrology : Volume 157, Issue 1, January 2009
Contributions to Mineralogy and Petrology : Volume 156
Contributions to Mineralogy and Petrology : Volume 155
Contributions to Mineralogy and Petrology : Volume 154
Contributions to Mineralogy and Petrology : Volume 153
Contributions to Mineralogy and Petrology : Volume 152
Contributions to Mineralogy and Petrology : Volume 151
Contributions to Mineralogy and Petrology : Volume 150
Contributions to Mineralogy and Petrology : Volume 149
Contributions to Mineralogy and Petrology : Volume 148
Contributions to Mineralogy and Petrology : Volume 147
Contributions to Mineralogy and Petrology : Volume 146
Contributions to Mineralogy and Petrology : Volume 145
Contributions to Mineralogy and Petrology : Volume 144
Contributions to Mineralogy and Petrology : Volume 143
Contributions to Mineralogy and Petrology : Volume 142
Contributions to Mineralogy and Petrology : Volume 141
Contributions to Mineralogy and Petrology : Volume 140
Contributions to Mineralogy and Petrology : Volume 139
Contributions to Mineralogy and Petrology : Volume 138
Contributions to Mineralogy and Petrology : Volume 137
Contributions to Mineralogy and Petrology : Volume 136
Contributions to Mineralogy and Petrology : Volume 135
Contributions to Mineralogy and Petrology : Volume 134
Contributions to Mineralogy and Petrology : Volume 133
Contributions to Mineralogy and Petrology : Volume 132
Contributions to Mineralogy and Petrology : Volume 131
Contributions to Mineralogy and Petrology : Volume 130
Contributions to Mineralogy and Petrology : Volume 129
Contributions to Mineralogy and Petrology : Volume 128
Contributions to Mineralogy and Petrology : Volume 127
Contributions to Mineralogy and Petrology : Volume 126

Similar Documents

...
Abundant Fe–Ti oxide inclusions in olivine from the Panzhihua and Hongge layered intrusions, SW China: evidence for early saturation of Fe–Ti oxides in ferrobasaltic magma

Article

...
Ilmenite composition in the Tellnes Fe–Ti deposit, SW Norway: fractional crystallization, postcumulus evolution and ilmenite–zircon relation

Article

...
Plagioclase in the Skaergaard intrusion. Part 1: Core and rim compositions in the layered series

Article

...
Parental magma of the Skaergaard intrusion: constraints from melt inclusions in primitive troctolite blocks and FG-1 dykes

Article

...
Platinum-group mineralization at the margin of the Skaergaard intrusion, East Greenland

Article

...
Crystallization sequence of the Upper Border Series of the Skaergaard Intrusion: revised subdivision and implications for chamber-scale magma homogeneity

Article

...
Efficiency of compaction and compositional convection during mafic crystal mush solidification: the Sept Iles layered intrusion, Canada

Article

...
Zircon coronas around Fe–Ti oxides: a physical reference frame for metamorphic and metasomatic reactions

Article

...
Physicochemical parameters of crystallization differentiation and Fe–Ti ore-forming processes in the magmatic system of the Elet’ozero massif (Northern Karelia)

Article

The Skaergaard liquid line of descent revisited

Content Provider SpringerLink
Author Thy, Peter Lesher, Charles E. Tegner, Christian
Copyright Year 2008
Abstract There is a fundamental conflict between the suggestion that the iron content of Skaergaard liquids increases during Fe–Ti oxide fractionation and the observation that at the same time oxygen fugacity ( $$ f_{{\text{O}_{\text{2}}}} $$ ) drops by two log-units below the fayalite-magnetite-quartz oxygen buffer (FMQ). A new petrographic study of average Skaergaard gabbros shows that the total modal content of Fe–Ti oxides is about 22% in the early LZc and markedly decreases to below 5% in the UZc. Forward modeling based on these modal constraints, as well as experimental results on Skaergaard-related dikes, predicts that fractionation of troctolitic LZa gabbros drives the derivative liquid towards a high-iron content. Strong iron enrichment continues, together with a small decline in silica, during LZb crystallization due to the appearance of augite as a fractionating phase. The fractionation of Fe–Ti oxides in the LZc initially suppresses iron enrichment and reverses the silica trend to one of slight enrichment. However, continued evolution into the UZ produces liquids with maximum UZc FeO* content of 23–25 wt.% and SiO2 content of 53 wt.% (FeO* is total iron as FeO). The maximum in FeO* is dependent on several factors of which the Fe–Ti oxide mode has the strongest effect. The $$ f_{{\text{O}_{\text{2}}}} $$ during crystallization of the LZc is widely thought to have been at, or slightly below, the fayalite-magnetite-quartz oxygen buffer (FMQ). Under closed system evolution, incorporation of ferric iron into augite during formation of the LZb restricts the increase in $$ f_{{\text{O}_{\text{2}}}} $$ to about 0.1 log-units above FMQ (=0.1 ΔFMQ). Likewise, crystallization of the LZc through the UZa, involving Fe–Ti oxide minerals, leads to a decline in $$ f_{{\text{O}_{\text{2}}}} $$ of less than 0.1 ΔFMQ. Crystallization of the UZb-c gabbros results in oxidation to a maximum of 0.5 ΔFMQ. This behavior can account for the iron-rich character of the UZ gabbros, as well as, the low modal content of Fe–Ti oxides. Thus, evolved Skaergaard liquids are high in iron and contain a modest amount of SiO2. Our modeling result do not account for a strong drop in $$ f_{{\text{O}_{\text{2}}}} $$ through the layered series. Such a drop would require an unacceptably high proportion of Fe–Ti oxides and high-magnetite content in the fractionating assemblage.
Starting Page 735
Ending Page 747
Page Count 13
File Format PDF
ISSN 00107999
Journal Contributions to Mineralogy and Petrology
Volume Number 157
Issue Number 6
e-ISSN 14320967
Language English
Publisher Springer-Verlag
Publisher Date 2008-11-16
Publisher Place Berlin/Heidelberg
Access Restriction One Nation One Subscription (ONOS)
Subject Keyword Greenland Skaergaard intrusion Petrology Liquid line of descent Layered series Iron enrichment Silica depletion Fe–Ti oxides Ilmenite Magnetite Oxygen fugacity Mineralogy Mineral Resources Geology
Content Type Text
Resource Type Article
Subject Geochemistry and Petrology Geophysics
  • About
  • Disclaimer
  • Feedback
  • Sponsor
  • Contact
  • Chat with Us
About National Digital Library of India (NDLI)
NDLI logo

National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.

Learn more about this project from here.

Disclaimer

NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.

Feedback

Sponsor

Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.

Contact National Digital Library of India
Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302
See location in the Map
03222 282435
Mail: support@ndl.gov.in
Sl. Authority Responsibilities Communication Details
1 Ministry of Education (GoI),
Department of Higher Education
Sanctioning Authority https://www.education.gov.in/ict-initiatives
2 Indian Institute of Technology Kharagpur Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project https://www.iitkgp.ac.in
3 National Digital Library of India Office, Indian Institute of Technology Kharagpur The administrative and infrastructural headquarters of the project Dr. B. Sutradhar  bsutra@ndl.gov.in
4 Project PI / Joint PI Principal Investigator and Joint Principal Investigators of the project Dr. B. Sutradhar  bsutra@ndl.gov.in
Prof. Saswat Chakrabarti  will be added soon
5 Website/Portal (Helpdesk) Queries regarding NDLI and its services support@ndl.gov.in
6 Contents and Copyright Issues Queries related to content curation and copyright issues content@ndl.gov.in
7 National Digital Library of India Club (NDLI Club) Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach clubsupport@ndl.gov.in
8 Digital Preservation Centre (DPC) Assistance with digitizing and archiving copyright-free printed books dpc@ndl.gov.in
9 IDR Setup or Support Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops idr@ndl.gov.in
I will try my best to help you...
Cite this Content
Loading...