Antash Project
Geological Settings

The Antash property is located in the Antash department 60 km east by road from the city of Casma and 25 km west of the city of Huaraz at elevations between 2700 and 4700 masl.

The project is sited in the Cordillera Negra, which consists of a thick sequence of Cretaceous shales, limestones and continental clastic rocks of the Goyllarisquisga Group. This unit is unconformably overlain by andesites, dacites and rhyodacites of the Late Eocene to Lower Miocene Calipuy Volcanic Group. These units are intruded by several intrusive phases including monzodiorite porphyry, quartz monzonite, and diorite and are host to the porphyry style mineralization identified on the property.

The Antash property is affected by a regional, north-trending (4 by 7 km) hydrothermal alteration system, which is mostly associated with the intrusive phases. The alteration is roughly zoned, similar to typical porphyry systems, with a core of phyllic alteration, rimmed by extensive propylitic alteration. Less defined zones of potassic and advanced argillic alteration occur within the central portions of the system. Exposures of altered porphyritic and brecciated rocks along the ridge on the western boundary of the project represent the uppermost levels of the hydrothermal system. Chariot believes that the main copper and/or molybdenum mineralized portion of the system would occur a few hundred meters lower in elevation.

Mapping and sampling conducted by BHP Billiton in 2002 delineated an elongate N-S alteration zone that covers approximately 8 by 3 km. A quartz-feldspathic porphyritic stock (QFP) intrudes Tertiary Calipuy andesite volcanic rocks that are in turn covered by rhyolitic to andesitic pyroclastic rocks. This QFP stock crops out in the central part of the property with a NNE orientation and a maximum axis close to 4 km long. A large but poorly understood breccia complex crops out in the northern part of the property. The breccia complex is possibly linked to a rhyolitic dome.

The area of interest is a large zone of phyllic alteration rimmed by propylitic alteration. Towards the south, the phyllic alteration grades into quartz-alunite alteration. To the north, in the area of the breccia complex, the phyllic assemblage is overprinted by quartz-alunite alteration

Hydrothermal Breccia