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The Geology and Ore Potential of the Rionegro Project, Santander, Colombia

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The Geology and Ore Potential of the Rionegro Project, Santander, Colombia The Geology and ore potential of the Rionegro Project, Santander, Colombia. P. Geo. Ricardo A. Valls Álvarez, Fenix Geoconsult Ltd.,133 Richmond Street West, Suite 204, Toronto, ON, M5H 2L3, Canada, [email protected], +1-416-294-3896 Dr. Jorge Cruz Martin, Fenix Geoconsult Ltd.,133 Richmond Street West, Suite 204, Toronto, ON, M5H 2L3, Canada, [email protected], +57-310-855-4219 P. Geo., Dr. Vadim Galkine, Fenix Geoconsult Ltd., 133 Richmond Street West, Suite 204, Toronto, ON, M5H 2L3, Canada, [email protected], +1-647-501-0590 DOI: 10.17605/OSF.IO/EF7C5 Abstract Alicanto Mining Corp. through its fully owned Colombian subsidiary Alicanto Colombia S.A.S., has applied for two licenses in the Rionegro Project, northwest of Bucaramanga, and encompassing disseminated gold mineralization in a marine basin. Within Rionegro II, the Client owns the exploitation area contract JG3-1392 (Mina Guayos) with 7.65 km2. Within the Rionegro applications there is an exploitation contract IH8-11141 of 4 km2 and the application license GEG-154A of 0.2 km2 located within the Mina Guayos exploitation contract that do not belong to the Client. Besides the known placers in the river, there is a clear potential for paleo placers associated to a Jurassic marine basin in the area, as well as gold associated to a sequence of Tertiary conglomerates. There is also the potential for a Carlin type of mineralization in the bituminous-rich limestones, as well as gold associated to a tonalite intrusive. All exploration permits have been obtained and are in order, and to the extent known, there are no royalties, back-in rights, payments or other agreements and encumbrances by third parties to which the licenses are subjected other than royalties to the government. A work program known as PTO in Colombia was approved and an Environmental Impact Study (EIA) have been filled for the exploitation of some paleo placers in Mina Guayos. The Client started the exploitation of the marine paleo placers using off-the-shelf gravimetric techniques. Parallel to this, they plan to study the rest of the paleo placers using a combination of GPR1, pitting, and soil geochemistry. The Client plans to explore the original source of gold in the paleo conglomerates and limestones using the GFcsa™2 to locate the most productive areas for further exploitation. Based on production data, we have defined 35.92 million cubic metres of sediments with a grade of 0.81 g/t which represent 58,916 kg of free gold (1,894,169 ozt). Within the same volume of sediments, we have defined 4.79 million cubic metres of magnetite (4.76%) with a grade of 1 g/t, 95% recovery, representing 4,548 kg of gold (146,229 ozt). In total, we have 63,464 kg of gold (2,040,398 ozt) of Inferred Mineral Resources. A combined budget of US$1,500,000 is proposed to explore and develop this target. 1 GPR stands for Ground Penetration Radar (http://www.groundradar.com/) 2 Geoconsult Fenix complex system approach- survey includes geology, geochemistry, and geophysics simultaneously. 1 Key words: Paleoplacer, gold, new gold district, magnetite, Witwatersrand, Carlin Resumen Alicanto Mining Corp., a través de su filial colombiana Alicanto Colombia S.A.S., ha solicitado dos licencias en el proyecto Rionegro, al noroeste de Bucaramanga, y que abarca la mineralización de oro diseminada en una cuenca marina. Dentro de Rionegro II, el cliente posee el contrato del área de explotación JG3-1392 (mina Guayos) con 7,65 km2. Dentro de las aplicaciones de Rionegro hay un contrato de explotación IH8-11141 de 4 km2 y la licencia de aplicación GEG-154A de 0,2 km2 se encuentra dentro del contrato de explotación de mina Guayos que no pertenece al cliente. Además de los placeres conocidos en el río, hay un potencial claro para los paleo placeres asociados a una cuenca marina jurásica en la zona, así como el oro asociado a una secuencia de terciario Conglomerados. También existe la posibilidad de un tipo de mineralización de Carlin en las calizas bituminosas, así como el oro asociado a un tonalite Intrusivo. Todos los permisos de exploración han sido obtenidos y están en orden, y en la medida en que se conocen, no hay regalías, derechos de devolución, pagos u otros acuerdos y gravámenes por parte de terceros a los que las licencias se someten a otros que las regalías al gobierno. Se aprobó un programa de trabajo conocido como PTO en Colombia y se completó un estudio de impacto ambiental (EIA) para la explotación de los paleo placeres en mina Guayos. El cliente comenzó la explotación de los placeres marinos usando técnicas gravimétricas fuera del estante. Paralelamente a esto, planean estudiar el resto de los placeres paleo usando una combinación de GPR3, pozos y geoquímica del suelo. El cliente planea explorar la fuente original de oro en los paleo conglomerados y las calizas utilizando el GFCsa™4 para localizar las áreas más productivas para una mayor explotación. Basado en datos de producción, hemos definido 35,92 millones de metros cúbicos de sedimentos con un grado de 0,81 g/t que representan 58.916 kg de oro libre (1.894.169 ozt). Dentro del mismo volumen de sedimentos, hemos definido 4.790.000 metros cúbicos de magnetita (4,76%) con un grado de 1 g/t, 95% de recuperación, representando 4.548 kg de oro (146.229 ozt). En total, hemos 63.464 kg de oro (2.040.398 ozt) de Mineral inferidos Recursos. Se propone un presupuesto combinado de US$1,500,000 para explorar y desarrollar este objetivo. Palabras claves: Paleoplaceres, oro, nuevo distrito minero, magnetita, Witwatersrand, Carlin Introduction This paper has been prepared by P. Geo. Dr. Vadim Galkine, Dr. Jorge Cruz Martin, and P. Geo. Ricardo A. Valls of Fenix Geoconsult Ltd. to present an update on the geological knowledge and ore potential of the Rionegro Project in Colombia. The QPs used data and information from existing public sources and other information presented by local workers in the area. All coordinates in this report correspond to the WGS 84 datum. The 3 GPR significa radar de penetración de tierra (http://www.groundradar.com/) 4 Geoconsult Fenix complex system approach-el levantamiento incluye la geología, la geoquímica y la geofísica simultáneamente. 2 QPs adhered to the metric system and all costs are expressed in US dollars at a conversion rate of 2,383 Colombian pesos and 1.251 Canadian dollars. Based on production data, the QPs have defined 35.92 million cubic metres of sediments with a grade of 0.81 g/t which represent 58,916 kg of free gold (1,894,169 ozt). Within the same volume of sediments, we have defined 4.79 million cubic metres of magnetite (4.76%) with a grade of 1 g/t, 95% recovery, representing 4,548 kg of gold (146,229 ozt). In total, we have 63,464 kg of gold (2,040,398 ozt) of Inferred Mineral Resources. A combined budget of US$1,500,000 is proposed to explore and develop this target. Project Description and Location The present study covers the applications of the company in the Rionegro Project as shown in Figure 1. These are licenses Rionegro I (PCL-11051 with 98.1 km2) and Rionegro II (PCL-11341 with 91.95 km2). Within the Rionegro II the Client has the exploitation area contract JG3-1392 (Mina Guayos) with 7.65 km2. Within the Rionegro applications there is an exploitation contract IH8-11141 of 4 km2 and the application license GEG-154A of 0.2 km2 located within the Mina Guayos exploitation contract that do not belong to the Client. Coordinates of the Rionegro applications are shown in Table 1. Figure 1. Current applications in the area of Rionegro. 3 Table 1. Coordinates of the Rionegro I and II licenses in Colombia, WGS 84 UTM 18 N. Point UTM E UTM N 1 688817 808191 2 688811 811141 3 689438 810884 4 689933 809804 5 689846 809324 6 689993 808920 7 690001 808607 8 690167 808649 9 689897 809330 10 689965 809782 11 689541 810863 12 688811 811279 13 688810 811666 14 689259 812191 15 690809 812194 16 690779 808920 17 690816 808920 18 690780 808195 All exploration permits have been obtained and are in order, and to the extent known, there are no royalties, back-in rights, payments or other agreements and encumbrances by third parties to which the licenses are subjected other than royalties to the government. Environmental and production permits have been obtained for the exploitation of some marine paleoplacers in Mina Guayos. Accessibility, Climate, Vegetation, Local Resources, Infrastructure, and Physiography Accessibility and Physiography There are currently six access routes to the license. The main access is by a paved road and then the last few kilometres by the ancient tracks of a railroad that used to serve the city of Bucaramanga and was discontinued. It takes around 2.5 hours to get to the site from the city of Bucaramanga and except for some wooden bridges, it does not need a 4x4 vehicle. The Rionegro Project is located on a plateau in the Cordillera Oriental of the Colombian Andes, and many residents occupy unstable lands descending steeply from the meseta. Westbound of it, the Rio de Oro Canyon is located at an altitude of 600m.a.s.l. Eastbound, the Andean Range rises in high peaks, reaching almost 3,700m.a.s.l. in the place locally known as "Páramo de Berlín". The city of Bucaramanga is located at 7°08′N, 73°08′W.
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