Mgongo kati wa Bahari Hindi ya Kusini Magharibi

Ramani wa Mgongo kati wa Bahari Hindi ya Kusini Magharibi baina ya Afrika na Antaktiki.

Mgongo kati wa Bahari Hindi Kusini Magharibi (kwa Kiingereza: Southwest Indian Ridge) unapatikana upande wa kusini wa Afrika kwenye Bahari Hindi na kwenye Bahari Atlantiki.

Mpangilio wa kijiolojia

Sawa na migongo mingine kati ya bahari huo umetokea pale ambako mabamba ya gandunia yaani mapande ya ganda la Dunia hukutana chini ya bahari. Kwenye mstari ambako mabamba hayo yanakutana kuna ufa unaoruhusu magma na lava kupanda juu kutoka koti ya Dunia kama mstari wa volkeno chini ya maji. Miamba hiyo yenye hali ya kiowevu inaganda inapotoka nje na kuingia katika maji ya bahari, hivyo kujenga safu ndefu ya milima.

Mgongo kati ya Bahari Hindi ya Kusini Magharibi unatenganisha Bamba la Afrika na Bamba la Antaktiki na kuunganisha Mgongo kati wa Atlantiki na Mgongo kati wa Bahari Hindi kwa urefu wa km 7700.

Mabamba hayo yanatawanya kwenye mgongo kati wa Bahari Hindi ya Kusini Magharibi yakiachana kila mwaka mnamo milimita 14-30.

Marejeo

Vyanzo

• {{Cite journal|last=Baines|first=A. G.|last2=Cheadle|first2=M. J.|last3=Dick|first3=H. J.|last4=Scheirer|first4=A. H.|last5=John|first5=B. E.|last6=Kusznir|first6=N. J.|last7=Matsumoto|first7=T.|year=2007|title=Evolution of the Southwest Indian Ridge from 55 45′ E to 62 E: Changes in plate‐boundary geometry since 26 Ma|url=http://darchive.mblwhoilibrary.org/bitstream/handle/1912/1790/2006GC001559.pdf?sequence=1&isAllowed=y%7Cformat=PDF%7Cjournal=Geochemistry, Geophysics, Geosystems|volume=8|issue=6|pages=Q06022|bibcode=2007GGG.....8.6022B|doi=10.1029/2006GC001559|access-date=16 August 2016
• Bronner, A.; Sauter, D.; Munschy, M.; Carlut, J.; Searle, R.; Cannat, M.; Manatschal, G. (2014). "Magnetic signature of large exhumed mantle domains of the Southwest Indian Ridge-results from a deep-tow geophysical survey over 0 to 11 Ma old seafloor". Solid Earth 5 (1): 339–354. Bibcode:2014SolE....5..339B. doi:10.5194/se-5-339-2014. 
• Cheng, H.; Zhou, H.; Yang, Q.; Zhang, L.; Ji, F.; Dick, H. (2016). "Jurassic zircons from the Southwest Indian Ridge". Scientific Reports 6: 26260. Bibcode:2016NatSR...626260C. PMC 4869104. PMID 27185575. doi:10.1038/srep26260. 
• Chu, D.; Gordon, R. G. (1999). "Evidence for motion between Nubia and Somalia along the Southwest Indian Ridge". Nature 398 (6722): 64–67. Bibcode:1999Natur.398...64C. doi:10.1038/18014. Iliwekwa mnamo 30 July 2016. 
• DeMets, C.; Gordon, R. G.; Argus, D. F. (2010). "Geologically current plate motions". Geophysical Journal International 181 (1): 1–80. Bibcode:2010GeoJI.181....1D. doi:10.1111/j.1365-246x.2009.04491.x. Iliwekwa mnamo 11 August 2016. 
• Dick, H. J.; Lin, J.; Schouten, H. (2003). "An ultraslow-spreading class of ocean ridge" (PDF). Nature 426 (6965): 405–412. Bibcode:2003Natur.426..405D. PMID 14647373. doi:10.1038/nature02128. Iliwekwa mnamo 10 September 2016. 
• Fisher, R. L.; Sclater, J. G. (1983). "Tectonic evolution of the Southwest Indian Ocean since the Mid‐Cretaceous: plate motions and stability of the pole of Antarctica/Africa for at least 80 Myr" (PDF). Geophysical Journal International 73 (2): 553–576. Bibcode:1983GeoJ...73..553F. doi:10.1111/j.1365-246X.1983.tb03330.x. Iliwekwa mnamo 30 July 2016. 
• Georgen, J. E.; Lin, J.; Dick, H. J. (2001). "Evidence from gravity anomalies for interactions of the Marion and Bouvet hotspots with the Southwest Indian Ridge: Effects of transform offsets". Earth and Planetary Science Letters 187 (3): 283–300. Bibcode:2001E&PSL.187..283G. doi:10.1016/s0012-821x(01)00293-x. Iliwekwa mnamo 30 July 2016. 
• Horner-Johnson, B. C.; Gordon, R. G.; Cowles, S. M.; Argus, D. F. (2005). "The angular velocity of Nubia relative to Somalia and the location of the Nubia—Somalia–Antarctica triple junction" (PDF). Geophysical Journal International 162 (1): 221–238. Bibcode:2005GeoJI.162..221H. doi:10.1111/j.1365-246X.2005.02608.x. Iliwekwa mnamo 11 August 2016. 
• Ligi, M.; Bonatti, E.; Bortoluzzi, G.; Carrara, G.; Fabretti, P.; Gilod, D.; Peyve, A. A.; Skolotnev, S.; Turko, N. (1999). "Bouvet Triple Junction in the South Atlantic: Geology and evolution". Journal of Geophysical Research 104 (B12): 29365–29385. Bibcode:1999JGR...10429365L. doi:10.1029/1999JB900192. 
• Mendel, V.; Sauter, D. (1997). "Seamount volcanism at the super slow-spreading Southwest Indian Ridge between 57° and 70°". Geology 25 (2): 99–102. doi:10.1130/0091-7613(1997)025<0099:svatss>2.3.co;2. Iliwekwa mnamo 18 September 2016. 
• Mendel, V.; Sauter, D.; Rommevaux‐Jestin, C.; Patriat, P.; Lefebvre, F.; Parson, L. M. (2003). "Magmato‐tectonic cyclicity at the ultra‐slow spreading Southwest Indian Ridge: Evidence from variations of axial volcanic ridge morphology and abyssal hills pattern". Geochemistry, Geophysics, Geosystems 4 (5): 1–23. Bibcode:2003GGG.....4.9102M. doi:10.1029/2002GC000417. Iliwekwa mnamo 30 July 2016. 
• Patriat, P.; Sauter, D.; Munschy, M.; Parson, L. (1997). "A survey of the Southwest Indian Ridge axis between Atlantis II Fracture Zone and the Indian Ocean Triple Junction: Regional setting and large scale segmentation". Marine Geophysical Researches 19 (6): 457–480. Bibcode:1997MarGR..19..457P. doi:10.1023/A:1004312623534. 
• Royer, J. Y.; Patriat, P.; Bergh, H. W.; Scotese, C. R. (1988). "Evolution of the Southwest Indian Ridge from the Late Cretaceous (anomaly 34) to the Middle Eocene (anomaly 20)". Tectonophysics 155 (1–4): 235–260. Bibcode:1988Tectp.155..235R. doi:10.1016/0040-1951(88)90268-5. Iliwekwa mnamo 31 July 2016. 
• Sauter, D.; Cannat, M.; Meyzen, C.; Bezos, A.; Patriat, P.; Humler, E.; Debayle, E. (2009). "Propagation of a melting anomaly along the ultraslow Southwest Indian Ridge between 46° E and 52° 20′ E: interaction with the Crozet hotspot?" (PDF). Geophysical Journal International 179 (2): 687–699. Bibcode:2009GeoJI.179..687S. doi:10.1111/j.1365-246X.2009.04308.x. Iliwekwa mnamo 28 August 2016. 
• Sauter, D.; Sloan, H.; Cannat, M.; Goff, J.; Patriat, P.; Schaming, M.; Roest, W. R. (2011). "From slow to ultra-slow: How does spreading rate affect seafloor roughness and crustal thickness?". Geology 39 (10): 911–914. Bibcode:2011Geo....39..911S. doi:10.1130/G32028.1. Iliwekwa mnamo 30 July 2016. 
• Sclater, J. G.; Grindlay, N. R.; Madsen, J. A.; Rommevaux‐Jestin, C. (2005). "Tectonic interpretation of the Andrew Bain transform fault: southwest Indian Ocean". Geochemistry, Geophysics, Geosystems 6 (9): Q09K10. Bibcode:2005GGG.....6.9K10S. doi:10.1029/2005GC000951. Iliwekwa mnamo 13 August 2016. 
• Seton, M.; Müller, R. D.; Zahirovic, S.; Gaina, C.; Torsvik, T.; Shephard, G.; Talsma, A.; Gurnis, M.; Maus, S. (2012). "Global continental and ocean basin reconstructions since 200Ma". Earth-Science Reviews 113 (3): 212–270. Bibcode:2012ESRv..113..212S. doi:10.1016/j.earscirev.2012.03.002. Iliwekwa mnamo 23 October 2016. 
• Standish, J. J.; Dick, H. J.; Michael, P. J.; Melson, W. G.; O'Hearn, T. (2008). "MORB generation beneath the ultraslow spreading Southwest Indian Ridge (9–25 E): Major element chemistry and the importance of process versus source" (PDF). Geochemistry, Geophysics, Geosystems 9 (5): Q05004. Bibcode:2008GGG.....9.5004S. doi:10.1029/2008GC001959. Iliwekwa mnamo 16 August 2016. 
• Trukhin, V. I.; Bagin, V. I.; Bagina, O. L.; Zhilyaeva, V. A.; Bulychev, A. A.; Gilod, L. A.; Ligi, M.; Lodolo, E.; Sciuto, F. (1999). "Magnetism of the Bouvet Mid-Ocean Ridge, South Atlantic" (PDF). Izvestiya, Physics of the Solid Earth 35 (1): 1–15. Iliwekwa mnamo 21 August 2016. 
• Zhou, H.; Dick, H. J. (2013). "Thin crust as evidence for depleted mantle supporting the Marion Rise". Nature 494 (7436): 195–200. Bibcode:2013Natur.494..195Z. PMID 23389441. doi:10.1038/nature11842. Ilihifadhi kwenye nyaraka kutoka chanzo mnamo 21 August 2016. Iliwekwa mnamo 30 July 2016.