Lithoquest Diamonds Inc. Pushes Forward with North Kimberley Exploration Despite Initial Drilling Challenges

Lithoquest Diamonds Inc., a dedicated player in the global diamond exploration sector, recently concluded the inaugural phase of its highly anticipated 2018 drill programme. This critical exploration effort is focused on the company’s wholly-owned North Kimberley Diamond Project, a vast and prospective area situated within the renowned mineral-rich landscape of Western Australia. The project holds significant promise for potential diamond discoveries, drawing considerable interest from the industry and investors alike as a new frontier in the quest for precious gems.

First Phase Drilling: Targets and Early Findings

The initial phase of drilling meticulously targeted specific anomalies identified within the extensive North Kimberley concession. “Drilling has ended at Targets 701, 702 and 1604,” the Company officially announced, marking a significant milestone in their strategic exploration timeline. These targets were carefully selected based on extensive preliminary geological data, including detailed geophysical surveys and the confirmed presence of kimberlite indicator minerals, which historically serve as crucial signposts for diamondiferous kimberlites. While this phase concluded, the company is already gearing up for the subsequent stage, confirming that “Phase two is scheduled to commence in approximately two weeks with drilling on Targets 1804 and 1805,” indicating a continuous and aggressive exploration schedule designed to efficiently advance the project.

Navigating Operational Hurdles in Remote Terrain

Despite the methodical planning, the execution of the initial drilling programme was not without its unique set of challenges, a common occurrence when operating in remote and rugged environments like the North Kimberley region of Western Australia. Difficult ground conditions proved to be a notable obstacle, severely impacting the mobility and access of the truck-mounted drill rig employed during phase one. Lithoquest disclosed that these challenging conditions regrettably prevented the rig from reaching two crucial high-priority targets that had been earmarked for the programme. This incident underscores the complexities and logistical hurdles inherent in frontier mineral exploration, where terrain and weather can significantly influence operational timelines and capabilities.

In response to these operational difficulties and demonstrating proactive project management, Lithoquest has swiftly adapted its strategy to ensure maximum efficiency for future operations. “A track mounted drill is being mobilised to site and is expected to arrive in the next two weeks,” the Company elaborated. This strategic shift to a track-mounted drill rig is specifically designed to overcome the accessibility issues encountered previously. Track-mounted rigs are renowned for their superior traction, lower ground pressure, and robust stability, making them ideally suited for traversing rough, uneven, and soft terrains. This upgrade ensures that even the most challenging high-priority targets within the North Kimberley Diamond Project can be effectively reached and thoroughly tested, reflecting Lithoquest’s commitment to overcoming obstacles and advancing its exploration goals.

High-Priority Targets for Phase Two: A Strong Geological Rationale

The upcoming Phase Two will meticulously focus on a new set of highly prospective targets, specifically designated as 1804 and 1805. These targets are characterized by a compelling convergence of geological indicators, making them exceptionally attractive for potential diamond discovery. “The new targets are characterised by coincident ground geophysical anomalies and are supported by the presence of kimberlite indicator minerals, including diamonds, from historic loam samples in the immediate vicinity of each target,” the Company highlighted. This robust combination of evidence forms a powerful geological rationale, suggesting a high probability of intersecting diamond-bearing kimberlites. Geophysical anomalies, such as distinct magnetic highs or lows, can often delineate the subsurface footprint of kimberlite pipes, which typically exhibit different magnetic or density properties compared to the surrounding country rock. Coupled with the discovery of kimberlite indicator minerals (KIMs) and even micro-diamonds in historical surface samples, these targets represent the culmination of extensive prior reconnaissance and sampling efforts, unequivocally justifying their elevated priority in the forthcoming drilling sequence.

The Significance of Kimberlite Indicator Minerals (KIMs) in Diamond Exploration

Kimberlite indicator minerals are fundamental to successful diamond exploration strategies globally. These specific minerals, such as particular types of garnet (e.g., pyrope), ilmenite, chromite, clinopyroxene, and olivine, are formed under the same extreme high-pressure and high-temperature conditions as diamonds, deep within the Earth’s mantle. They are subsequently brought to the surface within the same volcanic host rocks, known as kimberlite pipes. Geologists meticulously search for these minerals in stream sediments and loam samples because, while diamonds themselves are extremely rare and difficult to find directly, their associated indicator minerals are far more abundant and thus much easier to detect. The consistent presence of high-quality KIMs in proximity to a compelling geophysical anomaly strongly suggests that a kimberlite pipe – the primary source rock for virtually all economic diamond deposits – is located nearby. The discovery of actual micro-diamonds in historical loam samples at targets 1804 and 1805 further elevates their prospectivity, offering direct and undeniable evidence of diamond mineralization within the project area, providing significant impetus for the next phase of drilling.

Phase One Drill Results: A Nuanced Picture and Strategic Next Steps

While Phase One successfully completed drilling at several targets, the initial findings present a nuanced picture, typical of early-stage diamond exploration, which is often an iterative and complex process requiring patience and persistence. At Target 701, two drill holes were completed and meticulously logged. However, Lithoquest reported that no kimberlite was intersected in either hole. This outcome introduces a geological conundrum, particularly given the earlier identification of high-interest indicator minerals in the vicinity. The lack of an immediate kimberlite intersection does not, by itself, negate the prospectivity of the area, but it certainly necessitates further diligent investigation. The Company acknowledges this, stating that “additional kimberlite indicator mineral sampling and geophysical surveying will be required to determine the cause” of the high indicator mineral counts without an apparent kimberlite source in the initial drilling. This could indicate a subtle, unlocated kimberlite body, or perhaps that the indicators were transported from a more distant source, necessitating a more refined and targeted approach to pinpoint the exact origin.

Similarly, at Target 702, another two holes were drilled as part of Phase One. While specific details on the intersection were not immediately provided, the Company has indicated its firm commitment to “continue working” to investigate the micro-diamond and kimberlite indicator mineral occurrences that previously pointed to this target’s significant potential. This sustained effort suggests that while a definitive kimberlite pipe may not have been immediately identified, the persistent presence of these crucial indicators warrants further, more detailed exploration. Such follow-up work might involve infill drilling to cover more ground, more detailed ground geophysics using different techniques to refine anomalies, or advanced mineral chemistry analysis to better understand the provenance of the indicators and trace them back to their primary source.

Target 1604 also saw the completion of one drill hole within the Phase One program. Consistent with the findings at Target 701, no kimberlite was intersected during this initial pass. Lithoquest reiterated a similar strategic plan for this location, stating that “further kimberlite indicator mineral sampling and geophysical surveying will be required to determine the source of the indicators recovered.” These ongoing investigations are crucial steps in systematically narrowing down potential sources of diamond-bearing rocks within the extensive North Kimberley project area. The presence of indicator minerals is a robust geological guide, and the inherent challenge in diamond exploration lies in precisely locating the often-small, pipe-like kimberlite bodies that serve as the primary host for diamonds, a task that often requires multiple exploration techniques and iterative drilling programs.

The Broader Context: Diamond Exploration in Western Australia’s Kimberley Region

Western Australia is globally renowned for its rich mineral endowments, including significant diamond deposits. The Kimberley region, in particular, has a storied history of diamond exploration and production, notably with the iconic Argyle Diamond Mine. Although the Argyle mine, once the world’s largest producer by volume, has now ceased operations, its legacy underscores the immense potential that still exists within the broader Kimberley geological province. Exploring for diamonds in such vast and often remote regions is a challenging, multi-stage process that combines sophisticated geological understanding with advanced technological applications. It requires substantial capital investment and a long-term perspective, with companies like Lithoquest employing cutting-edge techniques to unravel the geological mysteries of prospective regions. The meticulous process of identifying targets, executing drilling campaigns, rigorously analyzing samples, and continually refining geological models is an integral part of advancing any major mineral discovery, and Lithoquest’s current program exemplifies this iterative and scientifically driven approach to unlocking value.

Looking Ahead: Phase Two and Beyond for Lithoquest Diamonds Inc.

With the successful completion of Phase One and the swift, decisive adaptation to logistical challenges, Lithoquest Diamonds Inc. is strategically poised for an exciting and potentially transformative Phase Two. The focused attention on high-priority targets 1804 and 1805, significantly bolstered by the mobilization of a more capable track-mounted drill rig and a strong geological rationale derived from coincident geophysical anomalies and confirmed kimberlite indicator minerals, provides a renewed sense of anticipation for significant progress. The ongoing commitment to thorough follow-up on Phase One targets, even where kimberlite was not immediately intersected, demonstrates a comprehensive and scientifically sound exploration strategy. The North Kimberley Diamond Project represents a significant long-term opportunity, and each drill hole, whether yielding immediate success or requiring further investigation, contributes invaluable data to the overall understanding of the region’s diamond prospectivity. The next few weeks will be pivotal as drilling commences on these new, highly prospective targets, potentially unlocking significant value for Lithoquest Diamonds Inc. and its stakeholders as it continues its quest for new diamond discoveries in Western Australia’s promising geological landscape.

News Source: gjepc.org