Global Mid-Ocean Ridges Mantle Tomography Profiles

Desiderius Cyril Patrick Masalu

doi:doi:10.11648/j.earth.20150402.13

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Global Mid-Ocean Ridges Mantle Tomography Profiles

Desiderius Cyril Patrick Masalu

Published in Earth Sciences (Volume 4, Issue 2)

Received: 12 March 2015 Accepted: 31 March 2015 Published: 10 April 2015

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Abstract

We have studied mantle tomography profiles of global mid-ocean ridges to investigate their depth of origin and other characteristics. The Mid-Atlantic and the South West Indian Ridges are deep rooted ridges that extend as far down in the mantle to 250-300 km. The Central Indian Ridge, South East Indian Ridge, Antarctica Nazca, Pacific Antarctica, Pacific Nazca and Juan de Fuca are shallow rooted ridges that extend down in the mantle only to 100 km. The deep rooted ridges appear to be characterized by a weak low velocity ridge anomaly while the shallow rooted ridges are characterized by strong low velocity ridge anomaly. This may be due to the variations of the geochemistry of the ridges due to the fractionation process during magma ascent. Furthermore, despite the three ridges that make the Indian Rodriguez Triple Junction having different characteristics, all the three sections of the ridges that make the Triple Junction are characterized by strong low velocity ridge anomaly and extended down to only 100 km. This is particularly typical for the length of nine to ten degrees from the Triple Junction which makes it appear as an independent system.

Published in	Earth Sciences (Volume 4, Issue 2)
DOI	10.11648/j.earth.20150402.13
Page(s)	80-88
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2015. Published by Science Publishing Group

Keywords

Mid-Ocean Ridges, Mantle Tomography, Hotspot, Triple Junction

References

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Desiderius Cyril Patrick Masalu. (2015). Global Mid-Ocean Ridges Mantle Tomography Profiles. Earth Sciences, 4(2), 80-88. https://doi.org/10.11648/j.earth.20150402.13

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Desiderius Cyril Patrick Masalu. Global Mid-Ocean Ridges Mantle Tomography Profiles. Earth Sci. 2015, 4(2), 80-88. doi: 10.11648/j.earth.20150402.13

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Desiderius Cyril Patrick Masalu. Global Mid-Ocean Ridges Mantle Tomography Profiles. Earth Sci. 2015;4(2):80-88. doi: 10.11648/j.earth.20150402.13

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@article{10.11648/j.earth.20150402.13,
  author = {Desiderius Cyril Patrick Masalu},
  title = {Global Mid-Ocean Ridges Mantle Tomography Profiles},
  journal = {Earth Sciences},
  volume = {4},
  number = {2},
  pages = {80-88},
  doi = {10.11648/j.earth.20150402.13},
  url = {https://doi.org/10.11648/j.earth.20150402.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20150402.13},
  abstract = {We have studied mantle tomography profiles of global mid-ocean ridges to investigate their depth of origin and other characteristics. The Mid-Atlantic and the South West Indian Ridges are deep rooted ridges that extend as far down in the mantle to 250-300 km. The Central Indian Ridge, South East Indian Ridge, Antarctica Nazca, Pacific Antarctica, Pacific Nazca and Juan de Fuca are shallow rooted ridges that extend down in the mantle only to 100 km. The deep rooted ridges appear to be characterized by a weak low velocity ridge anomaly while the shallow rooted ridges are characterized by strong low velocity ridge anomaly. This may be due to the variations of the geochemistry of the ridges due to the fractionation process during magma ascent. Furthermore, despite the three ridges that make the Indian Rodriguez Triple Junction having different characteristics, all the three sections of the ridges that make the Triple Junction are characterized by strong low velocity ridge anomaly and extended down to only 100 km. This is particularly typical for the length of nine to ten degrees from the Triple Junction which makes it appear as an independent system.},
 year = {2015}
}

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TY  - JOUR
T1  - Global Mid-Ocean Ridges Mantle Tomography Profiles
AU  - Desiderius Cyril Patrick Masalu
Y1  - 2015/04/10
PY  - 2015
N1  - https://doi.org/10.11648/j.earth.20150402.13
DO  - 10.11648/j.earth.20150402.13
T2  - Earth Sciences
JF  - Earth Sciences
JO  - Earth Sciences
SP  - 80
EP  - 88
PB  - Science Publishing Group
SN  - 2328-5982
UR  - https://doi.org/10.11648/j.earth.20150402.13
AB  - We have studied mantle tomography profiles of global mid-ocean ridges to investigate their depth of origin and other characteristics. The Mid-Atlantic and the South West Indian Ridges are deep rooted ridges that extend as far down in the mantle to 250-300 km. The Central Indian Ridge, South East Indian Ridge, Antarctica Nazca, Pacific Antarctica, Pacific Nazca and Juan de Fuca are shallow rooted ridges that extend down in the mantle only to 100 km. The deep rooted ridges appear to be characterized by a weak low velocity ridge anomaly while the shallow rooted ridges are characterized by strong low velocity ridge anomaly. This may be due to the variations of the geochemistry of the ridges due to the fractionation process during magma ascent. Furthermore, despite the three ridges that make the Indian Rodriguez Triple Junction having different characteristics, all the three sections of the ridges that make the Triple Junction are characterized by strong low velocity ridge anomaly and extended down to only 100 km. This is particularly typical for the length of nine to ten degrees from the Triple Junction which makes it appear as an independent system.
VL  - 4
IS  - 2
ER  -

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Author Information

Desiderius Cyril Patrick Masalu

University of Dar es Salaam, Institute of Marine Sciences, Zanzibar, Tanzania

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APA Style

Desiderius Cyril Patrick Masalu. (2015). Global Mid-Ocean Ridges Mantle Tomography Profiles. Earth Sciences, 4(2), 80-88. https://doi.org/10.11648/j.earth.20150402.13

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ACS Style

Desiderius Cyril Patrick Masalu. Global Mid-Ocean Ridges Mantle Tomography Profiles. Earth Sci. 2015, 4(2), 80-88. doi: 10.11648/j.earth.20150402.13

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AMA Style

Desiderius Cyril Patrick Masalu. Global Mid-Ocean Ridges Mantle Tomography Profiles. Earth Sci. 2015;4(2):80-88. doi: 10.11648/j.earth.20150402.13

Copy | Download

@article{10.11648/j.earth.20150402.13,
  author = {Desiderius Cyril Patrick Masalu},
  title = {Global Mid-Ocean Ridges Mantle Tomography Profiles},
  journal = {Earth Sciences},
  volume = {4},
  number = {2},
  pages = {80-88},
  doi = {10.11648/j.earth.20150402.13},
  url = {https://doi.org/10.11648/j.earth.20150402.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20150402.13},
  abstract = {We have studied mantle tomography profiles of global mid-ocean ridges to investigate their depth of origin and other characteristics. The Mid-Atlantic and the South West Indian Ridges are deep rooted ridges that extend as far down in the mantle to 250-300 km. The Central Indian Ridge, South East Indian Ridge, Antarctica Nazca, Pacific Antarctica, Pacific Nazca and Juan de Fuca are shallow rooted ridges that extend down in the mantle only to 100 km. The deep rooted ridges appear to be characterized by a weak low velocity ridge anomaly while the shallow rooted ridges are characterized by strong low velocity ridge anomaly. This may be due to the variations of the geochemistry of the ridges due to the fractionation process during magma ascent. Furthermore, despite the three ridges that make the Indian Rodriguez Triple Junction having different characteristics, all the three sections of the ridges that make the Triple Junction are characterized by strong low velocity ridge anomaly and extended down to only 100 km. This is particularly typical for the length of nine to ten degrees from the Triple Junction which makes it appear as an independent system.},
 year = {2015}
}

Copy | Download

TY  - JOUR
T1  - Global Mid-Ocean Ridges Mantle Tomography Profiles
AU  - Desiderius Cyril Patrick Masalu
Y1  - 2015/04/10
PY  - 2015
N1  - https://doi.org/10.11648/j.earth.20150402.13
DO  - 10.11648/j.earth.20150402.13
T2  - Earth Sciences
JF  - Earth Sciences
JO  - Earth Sciences
SP  - 80
EP  - 88
PB  - Science Publishing Group
SN  - 2328-5982
UR  - https://doi.org/10.11648/j.earth.20150402.13
AB  - We have studied mantle tomography profiles of global mid-ocean ridges to investigate their depth of origin and other characteristics. The Mid-Atlantic and the South West Indian Ridges are deep rooted ridges that extend as far down in the mantle to 250-300 km. The Central Indian Ridge, South East Indian Ridge, Antarctica Nazca, Pacific Antarctica, Pacific Nazca and Juan de Fuca are shallow rooted ridges that extend down in the mantle only to 100 km. The deep rooted ridges appear to be characterized by a weak low velocity ridge anomaly while the shallow rooted ridges are characterized by strong low velocity ridge anomaly. This may be due to the variations of the geochemistry of the ridges due to the fractionation process during magma ascent. Furthermore, despite the three ridges that make the Indian Rodriguez Triple Junction having different characteristics, all the three sections of the ridges that make the Triple Junction are characterized by strong low velocity ridge anomaly and extended down to only 100 km. This is particularly typical for the length of nine to ten degrees from the Triple Junction which makes it appear as an independent system.
VL  - 4
IS  - 2
ER  -

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