Active mud volcanoes on the continental slope of the Canadian Beaufort Sea
The major geochemical characteristics of Red Sea brine are summarized for 11 brine-filled deeps located along the central graben axis between 19°N and 27°N. The major element composition of the different brine pools is mainly controlled by variable mixing situations of halite-saturated solution (eva...
Published in: | Geochemistry, Geophysics, Geosystems |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
AGU (American Geophysical Union)
2015
|
Subjects: | |
Online Access: | https://oceanrep.geomar.de/id/eprint/30718/ https://oceanrep.geomar.de/id/eprint/30718/1/Paull_et_al-2015-Geochemistry,_Geophysics,_Geosystems.pdf https://doi.org/10.1002/2015GC005928 |
id |
ftoceanrep:oai:oceanrep.geomar.de:30718 |
---|---|
record_format |
openpolar |
spelling |
ftoceanrep:oai:oceanrep.geomar.de:30718 2023-05-15T15:40:38+02:00 Active mud volcanoes on the continental slope of the Canadian Beaufort Sea Paull, C. K. Dallimore, S. R. Caress, D. W. Gwiazda, R. Melling, H. Riedel, Michael Jin, Y. K. Hong, J. K. Kim, Y.-G. Graves, D. Sherman, A. Lundsten, E. Anderson, K. Lundsten, L. Villinger, H. Kopf, A. Johnson, S. B. Hughes Clarke, J. Blasco, S. Conway, K. Neelands, P. Thomas, H. Côté, M. 2015-08 text https://oceanrep.geomar.de/id/eprint/30718/ https://oceanrep.geomar.de/id/eprint/30718/1/Paull_et_al-2015-Geochemistry,_Geophysics,_Geosystems.pdf https://doi.org/10.1002/2015GC005928 en eng AGU (American Geophysical Union) Wiley https://oceanrep.geomar.de/id/eprint/30718/1/Paull_et_al-2015-Geochemistry,_Geophysics,_Geosystems.pdf Paull, C. K., Dallimore, S. R., Caress, D. W., Gwiazda, R., Melling, H., Riedel, M. , Jin, Y. K., Hong, J. K., Kim, Y. G., Graves, D., Sherman, A., Lundsten, E., Anderson, K., Lundsten, L., Villinger, H., Kopf, A., Johnson, S. B., Hughes Clarke, J., Blasco, S., Conway, K., Neelands, P., Thomas, H. and Côté, M. (2015) Active mud volcanoes on the continental slope of the Canadian Beaufort Sea. Geochemistry, Geophysics, Geosystems, 16 (9). pp. 3160-3181. DOI 10.1002/2015GC005928 <https://doi.org/10.1002/2015GC005928>. doi:10.1002/2015GC005928 cc_by_3.0 Article PeerReviewed 2015 ftoceanrep https://doi.org/10.1002/2015GC005928 2023-04-07T15:22:31Z The major geochemical characteristics of Red Sea brine are summarized for 11 brine-filled deeps located along the central graben axis between 19°N and 27°N. The major element composition of the different brine pools is mainly controlled by variable mixing situations of halite-saturated solution (evaporite dissolution) with Red Sea deep water. The brine chemistry is also influenced by hydrothermal water/rock interaction, whereas magmatic and sedimentary rock reactions can be distinguished by boron, lithium, and magnesium/calcium chemistry. Moreover, hydrocarbon chemistry (concentrations and δ 13 C data) of brine indicates variable injection of light hydrocarbons from organic source rocks and strong secondary (bacterial or thermogenic) degradation processes. A simple statistical cluster analysis approach was selected to look for similarities in brine chemistry and to classify the various brine pools, as the measured chemical brine compositions show remarkably strong concentration variations for some elements. The cluster analysis indicates two main classes of brine. Type I brine chemistry (Oceanographer and Kebrit Deeps) is controlled by evaporite dissolution and contributions from sediment alteration. The Type II brine (Suakin, Port Sudan, Erba, Albatross, Discovery, Atlantis II, Nereus, Shaban, and Conrad Deeps) is influenced by variable contributions from volcanic/ magmatic rock alteration. The chemical brine classification can be correlated with the sedimentary and tectonic setting of the related depressions. Type I brine-filled deeps are located slightly off-axis from the central Red Sea graben. A typical " collapse structure formation " which has been defined for the Kebrit Deep by evaluating seismic and geomorphological data probably corresponds to our Type I brine. Type II brine located in depressions in the northern Red Sea (i.e., Conrad and Shaban Deeps) could be correlated to " volcanic intrusion-/extrusion-related " deep formation. The chemical indications for hydrothermal influence on Conrad and ... Article in Journal/Newspaper Beaufort Sea OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Geochemistry, Geophysics, Geosystems 16 9 3160 3181 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
The major geochemical characteristics of Red Sea brine are summarized for 11 brine-filled deeps located along the central graben axis between 19°N and 27°N. The major element composition of the different brine pools is mainly controlled by variable mixing situations of halite-saturated solution (evaporite dissolution) with Red Sea deep water. The brine chemistry is also influenced by hydrothermal water/rock interaction, whereas magmatic and sedimentary rock reactions can be distinguished by boron, lithium, and magnesium/calcium chemistry. Moreover, hydrocarbon chemistry (concentrations and δ 13 C data) of brine indicates variable injection of light hydrocarbons from organic source rocks and strong secondary (bacterial or thermogenic) degradation processes. A simple statistical cluster analysis approach was selected to look for similarities in brine chemistry and to classify the various brine pools, as the measured chemical brine compositions show remarkably strong concentration variations for some elements. The cluster analysis indicates two main classes of brine. Type I brine chemistry (Oceanographer and Kebrit Deeps) is controlled by evaporite dissolution and contributions from sediment alteration. The Type II brine (Suakin, Port Sudan, Erba, Albatross, Discovery, Atlantis II, Nereus, Shaban, and Conrad Deeps) is influenced by variable contributions from volcanic/ magmatic rock alteration. The chemical brine classification can be correlated with the sedimentary and tectonic setting of the related depressions. Type I brine-filled deeps are located slightly off-axis from the central Red Sea graben. A typical " collapse structure formation " which has been defined for the Kebrit Deep by evaluating seismic and geomorphological data probably corresponds to our Type I brine. Type II brine located in depressions in the northern Red Sea (i.e., Conrad and Shaban Deeps) could be correlated to " volcanic intrusion-/extrusion-related " deep formation. The chemical indications for hydrothermal influence on Conrad and ... |
format |
Article in Journal/Newspaper |
author |
Paull, C. K. Dallimore, S. R. Caress, D. W. Gwiazda, R. Melling, H. Riedel, Michael Jin, Y. K. Hong, J. K. Kim, Y.-G. Graves, D. Sherman, A. Lundsten, E. Anderson, K. Lundsten, L. Villinger, H. Kopf, A. Johnson, S. B. Hughes Clarke, J. Blasco, S. Conway, K. Neelands, P. Thomas, H. Côté, M. |
spellingShingle |
Paull, C. K. Dallimore, S. R. Caress, D. W. Gwiazda, R. Melling, H. Riedel, Michael Jin, Y. K. Hong, J. K. Kim, Y.-G. Graves, D. Sherman, A. Lundsten, E. Anderson, K. Lundsten, L. Villinger, H. Kopf, A. Johnson, S. B. Hughes Clarke, J. Blasco, S. Conway, K. Neelands, P. Thomas, H. Côté, M. Active mud volcanoes on the continental slope of the Canadian Beaufort Sea |
author_facet |
Paull, C. K. Dallimore, S. R. Caress, D. W. Gwiazda, R. Melling, H. Riedel, Michael Jin, Y. K. Hong, J. K. Kim, Y.-G. Graves, D. Sherman, A. Lundsten, E. Anderson, K. Lundsten, L. Villinger, H. Kopf, A. Johnson, S. B. Hughes Clarke, J. Blasco, S. Conway, K. Neelands, P. Thomas, H. Côté, M. |
author_sort |
Paull, C. K. |
title |
Active mud volcanoes on the continental slope of the Canadian Beaufort Sea |
title_short |
Active mud volcanoes on the continental slope of the Canadian Beaufort Sea |
title_full |
Active mud volcanoes on the continental slope of the Canadian Beaufort Sea |
title_fullStr |
Active mud volcanoes on the continental slope of the Canadian Beaufort Sea |
title_full_unstemmed |
Active mud volcanoes on the continental slope of the Canadian Beaufort Sea |
title_sort |
active mud volcanoes on the continental slope of the canadian beaufort sea |
publisher |
AGU (American Geophysical Union) |
publishDate |
2015 |
url |
https://oceanrep.geomar.de/id/eprint/30718/ https://oceanrep.geomar.de/id/eprint/30718/1/Paull_et_al-2015-Geochemistry,_Geophysics,_Geosystems.pdf https://doi.org/10.1002/2015GC005928 |
genre |
Beaufort Sea |
genre_facet |
Beaufort Sea |
op_relation |
https://oceanrep.geomar.de/id/eprint/30718/1/Paull_et_al-2015-Geochemistry,_Geophysics,_Geosystems.pdf Paull, C. K., Dallimore, S. R., Caress, D. W., Gwiazda, R., Melling, H., Riedel, M. , Jin, Y. K., Hong, J. K., Kim, Y. G., Graves, D., Sherman, A., Lundsten, E., Anderson, K., Lundsten, L., Villinger, H., Kopf, A., Johnson, S. B., Hughes Clarke, J., Blasco, S., Conway, K., Neelands, P., Thomas, H. and Côté, M. (2015) Active mud volcanoes on the continental slope of the Canadian Beaufort Sea. Geochemistry, Geophysics, Geosystems, 16 (9). pp. 3160-3181. DOI 10.1002/2015GC005928 <https://doi.org/10.1002/2015GC005928>. doi:10.1002/2015GC005928 |
op_rights |
cc_by_3.0 |
op_doi |
https://doi.org/10.1002/2015GC005928 |
container_title |
Geochemistry, Geophysics, Geosystems |
container_volume |
16 |
container_issue |
9 |
container_start_page |
3160 |
op_container_end_page |
3181 |
_version_ |
1766373327055618048 |