2006
DOI: 10.1016/j.jseaes.2004.09.013
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Metamorphic evolution of high-pressure and ultrahigh-temperature granulites from the Highland Complex, Sri Lanka

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Cited by 77 publications
(61 citation statements)
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“…The petrogenetic grid was compiled by Hokada et al (2008). (b) P-T paths from the Highland Complex, Sri Lanka (modified after Osanai et al, 2006b). The gray area indicates P-T conditions obtained from geothermobarometric results for several types of UHT granulites (Osanai et al, 2016a).…”
Section: °C 1 Gpamentioning
confidence: 99%
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“…The petrogenetic grid was compiled by Hokada et al (2008). (b) P-T paths from the Highland Complex, Sri Lanka (modified after Osanai et al, 2006b). The gray area indicates P-T conditions obtained from geothermobarometric results for several types of UHT granulites (Osanai et al, 2016a).…”
Section: °C 1 Gpamentioning
confidence: 99%
“…(d) P-T paths from the Higo Metamorphic Belt (modified after Osanai et al, 2006a). 2-3 Ga 1-2 Ga 1-2 Ga Cooray, 1994; Kröner et al, 1991;Kehelpannala, 1991Kandy Osanai 1989 Kandy Krn Spr-Grt-Opx , Kriegsman, 1991;Kriegsman and Schumacher, 1999;Osanai et al, 2000Osanai et al, , 2006bOsanai et al, , 2016aSajeev et al, , 2007Sajeev and Osanai, 2004a, b;Dharmapriya et al, 2015, Sajeev et al, 2010Santosh et al, 2014;Dharmapriya et al, 2016;Osanai et al, 2016b Grt…”
Section: °C 1 Gpamentioning
confidence: 99%
“…These include; 1) finding of ultrahigh -T (~ 1000 °C; UHT) pelitic (garnet -orthopyroxene -sillimanite -cordierite) granulites from the Kannak Complex, Kontum Massif ( Fig. 4; e.g., Osanai et al, 2003Osanai et al, , 2004aOsanai et al, , 2004b, 2) discovery of high -to ultrahigh -P (~ 40 kbar; UHP) mafic metamorphic rocks (eclogitic garnet -orthopyroxene -clinopyroxene granulite and diamond -bearing felsic granulite) from the Ngoc Linh Complex, Kontum Massif (Figs. 5a -5d; e.g., Nakano et al, 2004Nakano et al, a, 2006aNakano et al, , 2007b, 3) finding of garnet -gedrite -kyanite gneiss of rather 6) understanding of a main metamorphic age for most metamorphic rocks in Vietnam to be Permo -Triassic (230 -270 Ma), but part of them have older signatures (Neoproterozoic: ca.…”
Section: Overview Of Metamorphic Evolution In Vietnammentioning
confidence: 99%
“…The P-T evolution of these UHT granulites has been well demonstrated using phase-diagrams, experimentally, and theoretically well-constrained petrogenetic grids for Mg-Al granulite, mafic granulite, and aluminous granulite (Sajeev and Osanai, 2004a;Osanai et al, 2006;Sajeev et al, 2007Sajeev et al, , 2010 and references therein). Our geochronological results regarding the Sprbearing silica poor restitic UHT granulites are distributed between 620 and 525 Ma and can be grouped into two major populations: 620-580 and 563-520 Ma.…”
Section: Timing Of Metamorphism In Highland Complex Sri Lankamentioning
confidence: 75%
“…It is also important to correlate all reliable petrological, geochronological, and structural datasets across the continental fragments. Mg-Al Spr + Qz bearing assemblages within garnet porphyroblasts are identified from the Highland Complex of Sri Lanka (Sajeev and Osanai, 2004a;Osanai et al, 2006), the Skallen Group in the Lützow-Holm Complex of East Antarctica (Yoshimura et al, 2008), the Madurai Block of southern India (Tateishi et al, 2004;Brandt et al, 2011), and Andriamena in northwestern Madagascar (Goncalves et al, 2004) and Imanombo in southern Madagascar (Jöns and Schenk, 2011). Another rare assemblage, Spl + Qz, is also reported in most of these terranes (e.g., Kawakami and Motoyoshi, 2004;Morimoto et al, 2004;Sajeev and Osanai 2004b;Tadokoro et al 2007;Kawasaki et al, 2011;Jöns and Schenk, 2011).…”
Section: Tectonic Implicationsmentioning
confidence: 99%