The Ibague batholith is a heterogeneous I-type granitoid located along the Cordillera Central of Colombia. It consists of many magmatic pulses that crystallized along Jurassic times (150-188 Ma). This work reports new geochemical and petrologic features from the Ibague batholith in an area next to Coello river west of the town of Ibague. The petrography and mineral chemistry of the samples show a mineral assemblage that consists of plagioclase (Oligoclase to Andesine) + quartz + amphibole (Edenite and Mg-Hornblende) + biotite (Fe-Biotite) as the main minerals, K-feldspar (Sanidine) + pyroxene (Diopside) as minor phases, and chlorite (Ripidolite-Pycnochlorite) + epidote as alteration products. Whole-rock geochemistry indicates a volcanic arc affinity that suggests melting of a metasomatized mantle wedge and assimilation of continental crust based on Y = 12.76-20.03 ppm, Yb = 1.15-1.78 ppm, Nb = 6.25-8.74 ppm, and Ba/Nb ratios = 73.11-160.41. The Edenite-Andesine pair suggests maximum emplacement depth at 8.2-10.5 km (i.e. 2.5-3.2 Kbar and 750-850oC). Therefore, Cajamarca and Tierradentro metamorphic complexes, and Payande limestones were located at this depth in order to be intruded when the batholith was emplaced. Furthermore, liquidus was found at 1074 oC and 15 kbar using Rhyolite-Melts software. The thermodynamic models show that diopsidic pyroxenes should be xenocrystals and the order of crystallization was horblende-feldspars-biotite-quartz.