Mgongo kati wa Bahari Hindi ya Kusini Magharibi
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
[hariri | hariri chanzo]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.[1]
Marejeo
[hariri | hariri chanzo]- ↑ Sauter et al. 2011, Introduction, p. 911
Vyanzo
[hariri | hariri chanzo]- {{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
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{{cite journal}}: Cite has empty unknown parameter:|1=(help)CS1 maint: unflagged free DOI (link) - 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. doi:10.1038/srep26260. PMC 4869104. PMID 27185575.
{{cite journal}}: Cite has empty unknown parameter:|1=(help) - 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 Julai 2016.
{{cite journal}}: Cite has empty unknown parameter:|1=(help)CS1 maint: date auto-translated (link) - DeMets, C.; Gordon, R. G.; Argus, D. F. (2010). "Geologically current plate motions" (PDF). Geophysical Journal International. 181 (1): 1–80. Bibcode:2010GeoJI.181....1D. doi:10.1111/j.1365-246x.2009.04491.x. Iliwekwa mnamo 11 Agosti 2016.
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{{cite journal}}: Cite has empty unknown parameter:|1=(help)CS1 maint: date auto-translated (link) - 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 Julai 2016.
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{{cite journal}}: Invalid|ref=harv(help)CS1 maint: date auto-translated (link) - 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.
{{cite journal}}: Invalid|ref=harv(help) - 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 Septemba 2016.
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{{cite journal}}: Invalid|ref=harv(help)CS1 maint: date auto-translated (link) - 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.
{{cite journal}}: Invalid|ref=harv(help) - 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 Julai 2016.
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