The Khan-Taishir ophiolitic complex of Western Mongolia, its petrology, origin and comparison with other ophiolitic complexes
作者： L. P. Zonenshain , M. I. Kuzmin
DOI: 10.1007/BF00371637
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摘要: The Khan-Taishir ophiolitic complex is situated within Early Caledonian structures of Western Mongolia. It consists (from below upward) strongly differentiated ultramafics (dunites and harzburgites), pyroxenites gabbro, sheeted dikes, pillow lavas sediments, including in their uppermost part archaeocyatic limestones Lower Cambrian age. Geological, petrochemical geochemical data indicate that the are turn off from overlying sequence. Igneous rocks complex, except ultramafics, were formed by two-stage differentiation mantle magma quartz-tholeiitic composition exhausted potassium titanium. Pyroxenites gabbro with an anorthositic trend generated during first stage, dikes a quartz second one. Ophiolites petrochemically geochemically differ mafic ultramafic midoceanic ridges. Together ophiolites Troodos (Cyprus) Macquarie Island (eastern Indian Ocean) they constitute special type ophiolite peculiar rather to slip boundaries lithosphere plates. other ophiolite, complexes like Dzolen south Mongolia, contains poorly does not contain dikes; while igneous very similar dredged probably ridge environments as well.
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R. Varne, M. J. Rubenach, Geology of Macquarie Island and Its Relationship to Oceanic Crust Antarctica Oceanology II: The Australian-New Zealand Sector. pp. 251- 266 ,(2013) , 10.1029/AR019P0251
George Malcolm Brown, Lawrence Richard Wager, Layered Igneous Rocks ,(1967)
Major Element Variations in Ocean-Floor Basalts Philosophical Transactions of the Royal Society A. ,vol. 268, pp. 495- 505 ,(1971) , 10.1098/RSTA.1971.0010
P. JAKEŠ, A. J. R. WHITE, Major and Trace Element Abundances in Volcanic Rocks of Orogenic Areas Geological Society of America Bulletin. ,vol. 83, pp. 29- 40 ,(1972) , 10.1130/0016-7606(1972)83[29:MATEAI]2.0.CO;2
R. Varne, R. D. Gee, P. G. J. Quilty, Macquarie island and the cause of oceanic linear magnetic anomalies. Science. ,vol. 166, pp. 230- 233 ,(1969) , 10.1126/SCIENCE.166.3902.230
L.P. Zonenshain, The evolution of Central Asiatic geosynclines through sea-floor spreading Tectonophysics. ,vol. 19, pp. 213- 232 ,(1973) , 10.1016/0040-1951(73)90020-6
Peridotite-gabbro-basalt complex from the equatorial Mid-Atlantic Ridge Philosophical Transactions of the Royal Society A. ,vol. 268, pp. 385- 402 ,(1971) , 10.1098/RSTA.1971.0002
D. H. Green, A. E. Ringwood, The genesis of basaltic magmas Contributions to Mineralogy and Petrology. ,vol. 15, pp. 103- 190 ,(1967) , 10.1007/BF00372052
I. G. GASS, Is the Troodos Massif of Cyprus a Fragment of Mesozoic Ocean Floor Nature. ,vol. 220, pp. 39- 42 ,(1968) , 10.1038/220039A0
Akiho Miyashiro, The Troodos ophiolitic complex was probably formed in an island arc Earth and Planetary Science Letters. ,vol. 19, pp. 218- 224 ,(1973) , 10.1016/0012-821X(73)90118-0