Slide 1: Santo Tomás 3D DCIP Geophysical Survey
Technical Information Santo Tomás 3D DCIP Geophysical Survey Field work: September 1, 2020 to March 16, 2021 Technical Disclosure JUNE 2021 TSX-V: OCO Frankfurt: OR6 U.S.: ORRCF
Slide 2: Disclaimer
Disclaimer The information and images contained in this presentation are based on data generated from the deep, three-dimensional, Induced Polarization ("DCIP") geophysical survey performed by Dias Geophysical, which is the subject of this presentation. The reader is cautioned that the DCIP data has
Slide 3: Introduction
Introduction • The final survey report was received May 28 for a deep, three-dimensional, Induced Polarization ("DCIP") geophysical survey by Dias Geophysical of Saskatoon, Saskatchewan ("Dias"). The Company press released the receipt of the Survey Results on June 2nd, 2021. • This data deck is prov
Slide 4: Introduction (cont’d)
Introduction (cont’d) • Drilling data indicates that Resistivity data reliably maps multiple lithologies, including high-resistivity limestone and rhyolite and low-resistivity phyllic-altered, sulphide-mineralized units. The Dias DCIP design provides coverage to a very significant depth below the ba
Slide 5: June 2, 2021 News Release Figures (1 & 2)
June 2, 2021 News Release Figures (1 & 2) Figure 1. Location of the geophysical Figure 2. Location of the surveys at the Santo Tomás deposit area geophysical surveys at the Santo Tomás deposit area
Slide 6: June 2, 2021 News Release Figure 3
June 2, 2021 News Release Figure 3 Figure 3: Stepped Plan View of the 3D DCIP Chargeability Model Note to the reader: The copper Gradeshell (Cu > 0.3%) in Red is provided in the figure as a visual cue to help locate the historical North zone resources
Slide 7: Survey Statistics & Station Locations
Survey Statistics & Station Locations • The cumulative results of the Dias Geophysical 3D DCIP survey represent the beginning of a new generation of advanced exploration of the Santo Tomás deposit. The final 3D models of Resistivity and Chargeability have a mesh size of 25 m by 25 m by 25 m. This me
Slide 8: Survey Statistics & Station Locations
Survey Statistics & Station Locations • The receiver electrode spacing was 100 m on lines separated by 200 m. The current injection spacing was 200 m along lines that extended between the receiver lines. From 1 to 4 current injections were added to the ends of the lines to increase depth coverage ne
Slide 9: Select Observations / Comments
Select Observations / Comments 1. Chargeability results as expressed at surface are observed by draping the shallow Chargeability responses on the Santo Tomás orthophoto model to illustrate the surface and immediate subsurface character. Notably the South, North and Brasiles zone surface responses c
Slide 10: 600m Elevation Plan of Chargeability & Resistivity
600m Elevation Plan of Chargeability & Resistivity Chargeablity Resistivity
Slide 11: 400m Elevation Plan of Chargeability & Resistivity
400m Elevation Plan of Chargeability & Resistivity Chargeablity Resistivity
Slide 12: Introduction
Introduction Chargeablity Resistivity
Slide 13: Selected Chargeability Section – South zone, Az 110°
Selected Chargeabilty Section – South zone, Az 110o Vertical Scale 500m – 0m - CN Tower Toronto, Canada
Slide 14: Selected Chargeability Section – South zone, Az 110°
Selected Chargeabilty Section – South zone, Az 110o
Slide 15: Selected Chargeability Section – South zone, Az 110°
Selected Chargeabilty Section – South zone, Az 110o
Slide 16: Selected Chargeability Section – South zone, Az 110°
Selected Chargeabilty Section – South zone, Az 110o
Slide 17: Selected Chargeability Section – South zone, Az 110°
Selected Chargeabilty Section – South zone, Az 110o
Slide 18: Selected Chargeability Section – (northern) South zone, Az 110°
Selected Chargeabilty Section – (northern) South zone, Az 110o
Slide 19: Selected Chargeability Section – North zone, Az 110°
Selected Chargeabilty Section – North zone, Az 110o
Slide 20: Selected Chargeability Section – North zone, Az 110°
Selected Chargeabilty Section – North zone, Az 110o
Slide 21: Selected Chargeability Section – North zone, Az 110°
Selected Chargeabilty Section – North zone, Az 110o
Slide 22: Selected Chargeability Section – North zone, Az 110°
Selected Chargeabilty Section – North zone, Az 110o
Slide 23: Selected Chargeability Section – North zone, Az 110°
Selected Chargeabilty Section – North zone, Az 110o
Slide 24: Selected Chargeability Section – North zone, Az 110°
Selected Chargeabilty Section – North zone, Az 110o
Slide 25: Selected Chargeability Section – North zone, Az 110°
Selected Chargeabilty Section – North zone, Az 110o
Slide 26: Selected Chargeability Section – Brasiles zone, Az 110°
Selected Chargeabilty Section – Brasiles zone, Az 110o
Slide 27: Selected Chargeability Section – Brasiles zone, Az 110°
Selected Chargeabilty Section – Brasiles zone, Az 110o Brasiles Showing known surface gossan expression (eastern anomaly, comes to surface at drill hole collar 65), and blind western target below overlying limestone and volcanogenic units The Chargeability features also appear to ‘intrude’ the overl
Slide 28: Scaled Schematic - +16.1mV/V
Scaled Schematic - +16.1mV/V Chargeability at Santo Tomás: Section through the Santo Tomás +16.1mV/V chargeability shell cut in plan section dipping 9 degrees on 020 degrees azimuth. 55 17.1 NYC (Lower Manhatten) 3D Model by Community District at: mV/V https://www1.nyc.gov/site/planning/data-maps/op
Slide 29: 600m elev. Chargeability vs Chargeability on 020° Section dipping 9°
600m elev. Chargeability vs Chargeability on 020o Section dipping 9o Chargeability at Santo Tomás: Planar section through the Santo Tomás +16.1mV/V chargeability shell cut in plan section dipping 9 degrees on 020 degrees azimuth, Chargeability at Santo Tomás: starting at elevation 600m at Level plan
Slide 30: Long Sections – North oriented, viewed from West
Long Sections – North oriented, viewed from West Brasiles | North zone | South Zone Chargeability at Santo Tomás: Longitudinal cross sections through the Santo Tomás X +16.1mV/V Chargeability – sections oriented to the north and viewed from west looking east, sections separated by 200m. 779,100m E I
Slide 31: Grid Extensions
Grid Extensions Grid extensions to the NE and SE were added to better constrain and vector continuing Chargeability feature trends observed while the survey was in progress
Slide 32: Brasiles west ‘blind’ target
Brasiles west Brasiles gossan ‘blind’ target North Zone DCIP Survey Base Camp (northern) South zone South zone (south of image)
Slide 33: Prospect images
Prospect images Brasiles gossan zone showing original road development Brasiles gossan zone (right of and drill pads. Oroco does picture) developed southwestward not have records from prior into the southerly developed bluff, drilling at Brasiles where pre-mineral limestones and volcanogenic units o
Slide 34: Santo Tomás Project – South, North and Brasiles zones
Santo Tomás Project – South, North and Brasiles zones
Slide 35: Santo Tomás Porphyry Copper Project Technical Materials Deck
Developing the Santo Tomás PORPHYRY COPPER PROJECT TECHNICAL MATERIALS DECK JUNE 2021 TSX-V: OCO Frankfurt: OR6 U.S.: ORRCF