Announcement • Jul 24
Aurbis Resources Corp Completes Second Phase of Mapping and Sampling on Ecru Gold Project in Nevada Aurbis Resources Corp. has completed a second phase of mapping and sampling on its 100% owned Ecru Gold Project, in Lander County, Nevada. This second phase identified additional zones of hornfels alteration, a rock-forming process that is a strong indicator of gold-bearing systems. Two main zones were identified, measuring approximately 800 metres and 500 metres in length. The geophysical interpretation of Ecru’s magnetic and gravity data is also eagerly awaited, since it will be used to identify additional areas of potential hornfels alteration that do not outcrop on the project, enlarging the discovery potential of Ecru. The geochemical results from both mapping phases will be used to fine-tune the mineral assemblage and hone in on a final set of targets which will likely be tested by induced polarisation (IP) surveys before final drill design. Announcement • Jul 10
Aurbis Resources Corp. Completes High-Definition Magnetic Survey and Remote Sensing Activities on Ecru Gold Project in Nevada Aurbis Resources Corp. completed several remote sensing activities on its 100% owned Ecru Gold Project, in Lander County, Nevada. A high-definition magnetic survey with 50m x 50m line spacing was completed over the Ecru project to support the growing dataset being compiled for the project. The magnetic data is currently being processed and interpreted by Fathom Geophysics, and deliverables will include a 3D model of the dataset and structural interpretations. The identification of hornfels alteration (announced 17 June 2026) is a significant geological advancement for the project, and the magnetic interpretation will help identify the final drill targets associated with the hornfels alteration. Hornfels alteration is closely associated with the Robertson-Style intrusion-related gold mineralisation. In addition to the magnetic survey, LiDAR and photogrammetry surveys were also completed on Ecru. These will assist in identifying historical workings and other surface anomalies, adding another layer of data to the project. Accurate elevation data will allow optimal processing of the 100m x 100m-spaced gravity data, which is also currently being interpreted by Fathom Geophysics. A follow-up mapping program is planned for the Ecru project and will provide more detail in high-priority areas already identified. It will also expand the mapped area to include all outcrops on the project. The geochemistry from both mapping phases will be a critical dataset for the final drill design. The High-definition magnetic survey completed on the Ecru Gold Project comprised 50m x 50m line spacings and was flown at 30m above the ground in a north-to-south orientation. The survey was designed to be close-spaced and deliver high-definition results because the magnetic signature expected from Robertson-Style “hornfels/skarn reduced intrusion-related” gold mineralisation is likely to be subtle, and the increased data density will give more detail. Aurbis expects to see a subtle magnetic signature (rather than a strong or high-contrast one) due to the mineralogy (Ilmenite) of the Tenabo stock, which hosts the Robertson deposit. Given Ecru's proximity to Robertson, the Ecru intrusion will likely share this host mineralization. Unlike magnetite-bearing intrusives (which produce strong, high-contrast magnetic datasets), ilmenite-series intrusions are characteristically low in magnetic susceptibility. and express as a subdued magnetic anomaly relative to surrounding rocks. Aurbis interprets this as a key feature of reduced intrusion-related gold systems globally and expects to see this magnetic characteristic at Ecru. The magnetic dataset acquired by Aurbis is currently being interpreted by Fathom Geophysics. Deliverables will include a structural interpretation of the data and a 3D model of the magnetic dataset to assist in understanding the depth to the target. Aurbis identified a detailed 100m x 100m gravity dataset over the Ecru project area, which was collected by S2 Resources (ASX announcement: 25 September 2019). Aurbis has commissioned Fathom Geophysics to process and interpret the gravity dataset along with the newly acquired magnetic data to assist in target identification and delineation. As with the magnetic dataset, the gravity anomaly anticipated at Ecru will likely be a subtle gravity high. The emplacement of the Robertson intrusion resulted in contact metamorphism of the host siliciclastic rocks, forming a contact aureole up to 1 km from the intrusion, within which hornfels alteration occurred. Hornfels alteration generally increases density, which can produce a subtle gravity high relative to the surrounding lower-density host rocks. The strong hornfels alteration identified during the first phase of mapping and announced by Aurbis on the 17th of June is critical to the discovery potential of gold mineralisation on Ecru. The ore deposits within the Tenabo district (including Robertson) surrounding the Ecru project can be broadly characterized as hornfels/skarn systems associated with reduced intrusion-related systems within the Tenabo pluton. The mineralization style of Robertson, and therefore the target style at Ecru, is the hornfelsed zone associated with the contact aureole of a reduced intrusion. Hornfels is a significant and well-documented indicator characteristic at the Robertson deposit, and Gold mineralisation at the Robertson Gold Deposit is associated with the contact metamorphism of the host rocks into hornfels, within a 1km aureole from the stock. The hornfels zone identified during the mapping phase is a defining characteristic of this type of gold mineralisation, and its increased density characteristics will be used to identify buried targets in the gravity dataset, relative to the mapped zones. In addition to the activities described above relating to magnetic and gravity datasets, Aurbis also completed LiDAR and photogrammetry surveys over the Ecru Gold Project, which will be incorporated into the full data suite and assist with data analysis and target identification. Given the importance of the Hornfels alteration to Robertson-Style gold mineralisation, the Company will conduct a second phase of mapping and sampling on the Ecru Gold project. This second phase will focus on identifying any additional hornfels-altered areas and mapping all remaining outcrop areas. Just like the first phase of mapping, samples will be collected and sent for assay analysis. The geochemical results for all rock samples are expected to be received about 6 weeks after submission and will be vital to the final drill target identification. The results of the Magnetic and Gravity data interpretation are highly anticipated by Aurbis and will directly influence the final geophysical step before final drill design: a targeted IP survey to identify specific conductive, sulphide-bearing areas associated with the hornfels zones and geochemical target areas. Announcement • Jun 18
Aurbis Resources Corp. Announces the First Phase of Mapping and Rock Sampling Has Been Completed on the Ecru Gold Project Aurbis Resources Corp. announced that the first phase of mapping and rock sampling (P1) has been completed on the Ecru Gold Project, held by Aurbis Resources in Lander County, Nevada. The mapping project identified several Robertson-Style characteristics in an area interpreted as the contact aureole of the Ecru intrusion. These characteristics included areas of intense hornfelsing, brecciation, and silicification, all of which are associated with the Robertson-Style intrusion-related gold mineralisation. Robertson-Style mineralization is named for the Robertson deposit just 2 km away from Ecru. This 2.7- million-ounce gold discovery was acquired by Barrick in 2017 and is now headed to production under Nevada Gold Mines (Barrick/Newmont) within the famed Cortez Complex, one of the richest gold trends in the world. The P1 mapping program focused on the southwestern portion of the Ecru project, where outcrop exists. About 150 rock samples were also collected during this phase of work and will be submitted to the analytical laboratory in Reno, Nevada. The mapping and sampling program is aimed to better understand the alteration assemblage of the Ecru Gold Project in relation to the Robertson-Style intrusion-related gold mineralisation. The rock samples will undergo the full mineral suite analyses to support the visual geological mapping interpretations with geochemical data. The program data is being compiled and will be reviewed alongside the sample results. It is likely that a second phase of mapping and rock sampling will be undertaken in the near future. A field mapping and outcrop sampling program was completed on the southwestern portion of the Ecru property, and about 100 rock chip samples were collected. The aim of the mapping and sampling program was to better understand the distribution of alteration assemblages on Ecru, particularly in relation to the interpreted intrusion identified by magnetic surveys. A roughly north-striking fault divides the mapped area into two distinct zones. On the west of the fault, fine grey sandstone of the Elder formation is weakly altered and west-dipping. East of the fault, the rocks are intensely altered and south-dipping. East of the fault, a long exposure of brecciated, hornfelsed, interbedded Elder formation shows evidence of multiple phases of brecciation, where coarse, blocky collapse breccias are cut by strongly silicified, hydrothermal breccia. This hydrothermal breccia style was observed across multiple units over a wide area. 
