The Crossland Creek project, located in Western Australia, is prospective for unconformity-related uranium deposits. Past exploration focused on several other targets, but Crossland recognized the promising potential for uranium on the property. The structural geology is similar to the Athabasca Basin in Saskatchewan and the McArthur Basin in the Northern Territory.

Crossland has a 100% interest in Crossland Creek. Through the Pancon and Crossland Joint Venture, Pancon has the right to earn a 50% interest in this property.


Uranium Exploration Activities

The entire area of the licenses at Crossland Creek was covered with a 200 metre spaced airborne magnetic and radiometric survey during November 2007. A total of 2,750 line kilometres were completed in the survey. This revealed structures that Crossland believes might host unconformity-related mineralization in a geological province which has favourable characteristics but has not been tested previously for such deposits. An agreement to acquire an additional exploration license in the Crossland Creek district was reached with Thundelarra Minerals Ltd. This adds an additional 452 square kilometres to the Crossland Creek project area.  

The newly-acquired area will be covered with an airborne geophysical survey with specifications similar to those of the Crossland Creek survey in 2007. Preparations will be made to commence testing the geophysical targets defined by existing data, as well as the additional surveys as soon as access is possible. Field work at Crossland Creek is expected to begin in July or August 2008.  

Location

Crossland Creek is located in the West Kimberley region of Western Australia, 190 kilometres west of Wyndam and 150 kilometres south of Kalumburu.

Property Size

The project encompasses an area of approximately 348 square kilometres.

Principal Target

The primary target at Crossland Creek is unconformity-related uranium deposits, such as those of the Athabasca Basin in Saskatchewan and the McArthur Basin in the Northern Territory.

 

 

Project History & Geology

 

The Crossland Creek project is situated in the Kimberley Basin, a relatively undeformed Paleoproterozoic sequence of sandstone, siltstone, shale and basalt up to 5,000 metres in thickness. Basaltic rocks of the Carson Volcanics outcrop over much of the project area. This is underlain by the King Leopold Sandstone. The target for a possible source of uranium and other metals is on the basal unconformity of the King Leopold Sandstone. The basement rocks below the King Leopold Sandstone remain unexplored, as no evidence of previous drilling has been found near the prospective area, although uranium occurrences are known in areas where the basement rocks are exposed around the edge of the Kimberley Basin.

 

The potential for uranium at Crossland Creek was identified by Crossland through the interpretation of results from a recently completed airborne magnetic and radiometric survey. Past exploration at Crossland Creek focused on several targets including uranium, copper, diamonds and bauxite. The property was initially viewed as most prospective for copper, based on copper values from soil and rock sampling discovered from a broad area of alteration which coincided with a magnetic anomaly. This had originally been defined in regional, government-funded surveys and confirmed by Crossland during 2006. The recently completed airborne magnetic and radiometric survey was undertaken by Crossland to provide definition of this anomaly to delineate drill targets. The results identified uranium-channel anomalies along a linear magnetic structure to the east of the original magnetic anomaly.

 

Crossland has developed the concept that the uranium might originate from leakage along a dyke-filled fault from a deposit on the sandstone unconformity at depth. The source of the magnetic feature is likely to be a basic intrusive that has entered a pre-existing structure. This structure would occupy a setting very similar to that which hosts unconformity-related uranium deposits, such as the Athabasca Basin in Saskatchewan and the McArthur Basin in the Northern Territory. These basins are also relatively unfolded and contain younger Proterozoic rocks, with basal sandstone units, which lie over an older more folded basement terrain.