The tectonic evolution of the Rengali Province and its eventual juxtaposition to the Eastern Ghats Province has important bearings on the geological evolution of the Eastern Indian terrane. New zircon and monazite age data from the Rengali Province and the northern-northwestern part of the Eastern Ghats are presented in this study to trace this evolutionary history. Monazite U-Th-total Pb data from the paragneissic rocks of the eastern Rengali Province show a metamorphic age of 2775 ± 18 Ma while an older age of 2943 ± 35 Ma from the same rock probably suggests an older metamorphic/magmatic event. Zircon U-Pb (LA-ICPMS) data from the northern part of the Eastern Ghats show 1230 ± 21 Ma and 1220 ± 9 Ma ages that we interpret as a major phase of high-grade metamorphism of the basement. Paragneissic rocks from the northwestern margin of the Eastern Ghats yields monazite ages of 966 ± 21 Ma and 555 ± 12 Ma respectively from the core and rim parts of monazite grains. Similar ages of 966 ± 25 Ma and 540 ± 12 Ma are reported from paragneissic rock occurring at the contact of Rengali Province and the Eastern Ghats. This younger (~555–540 Ma) age likely correlates to the amphibolite facies reworking of the granulitic lower crust which coincides with the emplacement of nepheline syenite at 556 ± 28 Ma (zircon U-Pb data) and the contact metamorphism of the ultramafic granofels at 553 ± 18 Ma (monazite data). Nepheline monzosyenite veins intruded the gneissic nepheline syenite at 506 ± 9 Ma (zircon U-Pb data). Emplacement of the monzosyenite veins within the felsic gneiss country at the northwestern margin of the Eastern Ghats at 490 ± 3 Ma (zircon U-Pb data) marks the last thermal imprint in response to large-scale shear-induced deformation at the northern/northwestern contacts of the Eastern Ghats. We infer that the Neoarchean (ca. 2943–2775 Ma) events possibly resulted from the ensuing convergent tectonics driven by lithospheric peeling (peel-back convergent tectonics). The Eastern Ghats and its Antarctic counterpart juxtaposed with the Rengali Province during ca. 1000–900 Ma and become a part of the Eastern Indian terrane. The Ediacaran-Cambrian (ca. 556–490 Ma) events imply the reactivation of the deep crustal Tonian-age shear systems in a transpressional tectonic setting.

Rengali省的构造演化及其最终与East Ghats省的并置关系对East Indian地层的地质演化具有重要意义。这项研究提出了来自龙加利省和东高止山脉北部-西北西北部的新锆石和独居石年龄数据。来自东部Rengali省的Paragneissic岩石的独居石U-Th-总Pb数据显示，同一岩石的变质年龄为2775±18 Ma，而较老的年龄为2943±35 Ma可能表明年龄较老的变质/岩浆事件。东高止山脉北部的锆石U-Pb（LA-ICPMS）数据显示了1230±21 Ma和1220±9 Ma年龄，我们将其解释为地下高等变质作用的主要阶段。来自东高止山脉西北边缘的Paragneissic岩石从独居石颗粒的核心和边缘部分产生的独居石年龄分别为966±21 Ma和555±12 Ma。据报道，在龙加利省和东高止山脉的接触处出现的巨石质岩石年龄相似，分别为966±25 Ma和540±12 Ma。这个年龄较小（约555-540 Ma）的年龄可能与颗粒状下部地壳的闪石岩相改造有关，这与霞石正长岩在556±28 Ma的位置（锆石U-Pb数据）和超镁铁质花岗石的接触变质相吻合。在553±18 Ma（独居石数据）。霞石霞石正长岩以506±9 Ma侵入片麻岩霞石正长岩（锆石U-Pb数据）。在东高止山脉西北边缘的长英质片麻岩国家内的脉长岩片岩脉进入490±3 Ma（锆石U-Pb数据），标志着对北部/西北部大范围剪切致变形的最后热印记东高止山脉的联系。我们推断，新太古代（约2943年至2775年Ma）事件可能是由随后的岩石圈剥落驱动的汇聚构造（回皮汇聚构造）引起的。西高止山脉及其南极对应地区在大约公元2月与Rengali省并列。1000–900 Ma，并成为东印度地形的一部分。Ediacaran-Cambrian（大约556–490 Ma）事件暗示着在一个超压构造背景下深地壳Tonian-年龄剪切系统的重新激活。