Geological and geochemical characteristics of the litho units exposed in and around Kalalikhera area of Pur-Banera belt have confirmed the presence of felsic volcanic rock unit named Kalalikhera felsic volcanic, with characteristic features such as (i) abundance of lapilli composed of polygonal quartz and feldspar and (ii) presence of relict bipyramidal quartz. These volcanics are associated with thin bands of chert. Geochemically, the volcanics are found to be of rhyolitic composition. Development of garnet porphyroblasts along with preferred orientation of the silicate minerals of rhyolite indicates a low to medium grade metamorphism and deformation of the units. Monazite geochemistry of the volcanics indicated towards the metamorphic origin of monazites, with REE pattern show steep fractionation trend from La to Lu. The in-situ chemical age of 2192 ± 57 Ma recorded from xenotime is interpreted as indicative of the opening of the Aravalli basin with the onset of rifting leading to the formation of Kalalikhera volcanics. The estimated ages of 1784 ± 92, 1351 ± 45 and 1026 ± 57 Ma from monazite analyses are interpreted as different metamorphic events associated with (i) closure of the basin and the onset of Aravalli orogeny, (ii) further imprints of Delhi orogeny, and (iii) with late Grenvillian age imprints.

Pur-Banera带卡拉利赫拉地区及其周围地区裸露的岩石单元的地质和地球化学特征已证实存在一个名为卡拉利赫拉费尔斯火山火山岩的长英质火山岩单元，其特征包括：（i）由多角石英和长石组成的丰富的青金石。 （ii）残留的双锥体石英的存在。这些火山与with石薄带有关。从地球化学上看，这些火山岩具有流纹岩成分。石榴石成卟啉的发展以及流纹岩的硅酸盐矿物的优选取向表明该单元具有低至中等等级的变质作用和变形。火山的独居石地球化学表明其向着独居石的变质起源，REE模式显示出从La到Lu的陡峭分馏趋势。这从异时开始记录的2192±57 Ma的原位化学年龄被解释为是Aravalli盆地的开放以及裂谷的开始，导致了Kalalikhera火山的形成。独居石分析的估计年龄为1784±92、1351±45和1026±57 Ma，这被解释为与（i）盆地封闭和Aravalli造山运动爆发有关的不同变质事件，（ii）德里造山运动的进一步印记， （iii）格林维尔时代晚期的烙印。