Geology of the Patharkhola Area, Almora District, Uttarakhand (India): With Special Reference to the Lithology and Field Relation

Abstract

The Patharkhola area (longitude 79°09'E to 79°17'56''E and latitude 29°47'42''N to 29°56'69''N) covering an area of about 125 square Kms situated in Almora District, Uttarakhand forming a part of the Almora Nappe has been selected for the detailed geological mapping at an scale of 2 cm equal to 1 Km. The rocks mainly include phyllites, schists and gneisses forming an anticlinal structure showing phyllites in the NW, S to SW and in the western part of the area, while the schists occur in the folded outcrop pattern in between both the limbs of the fold and the gneisses occur in the core of the fold. Although thin quartzitic bands has also been noticed interbedded with phyllites and schists. Several transverse faults have been noticed in the area under investigation which has been demarcated in the map. Bulletin of Department of Geology, vol. 20-21, 2018, pp: 1-6

Geochemical characteristics and tectonic interpretation of garnet mica schists of Patharkhola area in Kumaun Lesser Himalaya, Uttarakhand Himalaya, India

“…Je typovým príkladom zrážky medzi indickou a ázijskou litosférickou platňou v období pred približne 55 miliónmi rokov Yin, 2006). Štruktúre, stratigrafii a tektonike územia Kumaun v Malých Himalájach sa venujú viaceré práce (Joshi a Tiwari, 2009;Joshi et al, 2017;Rana a Thomas, 2018). V oblasti Kumaun je sekvencia Malých Himalájí oddelená hlavnou centrálnou prešmykovou zónou (Main Central Thrust; MCT) od Vyšších Himalájí na severe.…”

“…Hlavný hraničný prešmyk (Main Bondary Thrust; MBT) oddeľuje túto sekvenciu od oblasti Siwalikov na juhu (Thakur et al, 2010). Horninové súbory skupiny Dudhatoli (Rana a Thomas, 2018) , 1975). V Kumaunských Himalájach boli ruly jednotky Munsiari skupiny Almora datované na 1 830 ± 200 mil.…”

“…The Himalaya, an arc-shaped mountain belt covering whole boundary of northern India is a type example of intercontinental collision between Indian and Asian plates around 55 Ma ago Yin, 2006). In the past, the structure, stratigraphy and tectonics of the Kumaun Lesser Himalaya have been described by Joshi & Tiwari (2009), Joshi et al (2017) and Rana & Thomas (2018). In Kumaun region, the Lesser Himalayan sequence is delineated by Main Central Thrust (MCT) from the Higher Himalayan in the north and by Main Boundary Thrust (MBT) from the Siwaliks in south (Thakur et al, 2010).…”

“…In Kumaun region, the Lesser Himalayan sequence is delineated by Main Central Thrust (MCT) from the Higher Himalayan in the north and by Main Boundary Thrust (MBT) from the Siwaliks in south (Thakur et al, 2010). The rocks of the Dudhatoli group (Rana & Thomas, 2018) are exposed in the Patharkhola area. The "Inner Schistose Series" or the "Metamorphic and Crystalline Nappe' Tectonic Zone" of Lesser Himalaya forms a distinct structural unit which has witnessed multiple deformation and polyphase metamorphism.…”

Petrochemistry of Phyllites from Patharkhola, Lesser Kumaun Himalaya with Reference to Tectonic Implications

“…The Himalaya, arc-shaped mountain belt covering the whole boundary of northern India is an example of an intercontinental collision between Indian and Asian plates around 55 Ma ago [1][2][3][4][5][6][7] . The structure, stratigraphy and tectonics of the Lesser Kumaun Himalaya have been described by Auden [8] , Valdiya [9,10] , Thomas & Thomas [11] , Thomas & Thomas [12] , Joshi et al [13] , Joshi et al [14] , Rana and Thomas [15] . The Almora group of rocks forms a part of the Lesser Himalayas bounded by North and South Almora thrust [9] .…”