The average annual price for one pound of uranium was 48.99 U.S. dollars in 2023. This is the highest annual average since 2011, and comes in the wake of greater fuel demand as the global economy began recovering from the coronavirus pandemic as well as the energy crisis.

Note that MARtoc, MARcaco3, and MARopal (mg/cm2/y) are not 230Th fluxes, but are estimated as: MAR = f * LSR * DBD (where DBD = dry bulk density; LSR = linear sedimentation rate; f = measured fraction of TOC, CaCO3, and opal, respectively.)

An area centred approximately 120 km north-northwest of Kimba has been explored for possible economic primary uranium mineralisation, where the principal target is the igneous rock succession of Mesoproterozoic Gawler Range Volcanics (GRV) and... An area centred approximately 120 km north-northwest of Kimba has been explored for possible economic primary uranium mineralisation, where the principal target is the igneous rock succession of Mesoproterozoic Gawler Range Volcanics (GRV) and co-magmatic Hiltaba intrusions, which the exploration model which was being followed inferred might contain volcanic-hosted uranium deposits associated with a high-level Hiltaba granite stock intruded into the base of the massive upper GRV felsic lava pile. The Tanner Dam Project acreage was centred about a large (12 km x 7 km), oval shaped, magnetic and gravity low feature that is crossed by a series of prominent NW and NE-trending fracture zones, broadly coincident with several circular strong magnetic low features and complexes (Rankin, 1997). During the first licence year, work undertaken involved: - a review of historical geological, geochemical and geophysical public domain data; - the definition of drill targets based on the Streltsovska uranium model; - the preparation and presentation to DMITRE of an application for the grant of PACE Initiative drilling project subsidy funds; - liaison with Pastoral Lease holders, plus the submission of relevant statutory forms; - obtaining a Work Area Environmental and Heritage Clearance from the Gawler Ranges Native Title Claimant Group, to allow for the conduct of a proposed reverse circulation (RC) drilling programme; and - the collection and assaying of 2 rock chip samples taken during a brief reconnaissance field trip by Renaissance Uranium geologists that took place in late October 2012. The last activity yielded assay results which were only marginally anomalous – weakly elevated REE and 357 ppm Zn. Field descriptions for the respective rocks sampled were a rubble breccia and an altered (griesen) porphyry. The licensee's review of geological and exploration data previously obtained from the GRV and at Tanner Dam established that several key ingredients of volcanic-hosted uranium systems, known from studies of major deposits elsewhere, are also present there. Globally, it has been demonstrated that uranium mineralisation may occur in felsic to intermediate volcanic and volcaniclastic rocks associated with calderas and mid- to high level intrusive plutonic bodies. In particular, the combination of fluorine- and uranium-enriched magmas typical of A-type melts, coincident with a hydrothermal fluid driver, are essential components of such mineralised systems. In early 2012, a proposal for the grant of SA Government partial subsidy funding for mineral exploratory drilling, as part of Year 7 of the PACE Initiative Theme 2 programme – “Drilling Collaboration between DMITRE and Industry”, was submitted to DMITRE. This successful proposal, which became approved drilling project DPY7-11, was awarded a PACE funds grant of up to $40,000 to assist with completing two steeply angled, 350 m deep RC or rotary mud drillholes to test two intense magnetic low anomalies located within the Tanner Dam "granite" in positions where they are cross-cut by prominent north-west trending structures. However, only one of the two proposed drilling sites on EL 4814 was cleared for use by the Gawler Ranges Native Title Claimant Group, after its representatives made field inspections of both in September 2012. During June 2013, angled RC hole 13RTDRC01 was drilled by Renaissance Uranium to a total depth of 300 m to test an intense magnetic low anomaly observed to lie within the core of the Tanner Dam intrusive complex, at a place where the basement is cross-cut by prominent NW-trending structures and where fluorite-rich breccia veins outcrop. The company's examination of semi-detailed residual gravity data for this proposed drillsite had concluded that it may lie peripheral to apophyses of granite/rhyolite intruded high into the basal strata of the Yardea Dacite. The target geophysical anomaly was interpreted as possibly representing a zone of intense magnetite destruction/demagnetisation resulting from intense hydrothermal alteration, a scenario which could have given rise to the leaching and recycling of uranium from GRV and/or Hiltaba granite source rocks into spatially coincident structural and dilational traps (veins, stockworks and breccias). A critical aim of the hole was to intersect the intrusive contact between the Tanner Dam granite body and the upper GRV felsic lava flows (± lower GRV rocks). Results obtained from assaying 5 m composite drill cuttings samples revealed that 13RTDRC01 had intersected two zones of low order anomalous uranium hosted in rhyodacite: 40 m @ 22 ppm U, 476 ppm Pb and 1 ppm Ag from 35-75 m depth, and 5 m @ 47 ppm U, 60 ppm Mo and 1.34 ppm Ag from the depth interval 190-195 m. The significance of these intercepts was not rated highly by Renaissance, but it was regarded as encouraging for further work. An evident association of elevated uranium values with rock of low magnetic susceptibility was noted. Other minor intercepts of lead, zinc, silver, molybdenum and copper were also recorded, giving support to the base and precious metal mineralisation potential of the prospect. This PACE-subsidised drillhole did not reach the base of the upper GRV felsic lava units, despite it being taken to near the originally planned depth, and thus it was partly a technical failure. Because of the drastically falling market price of uranium in 2013, and the lack of significant grade uranium intercepts made in hole 13RTDRC01, Renascor Resources later decided to allow tenure of EL 4814 to lapse at the end of the second year.

Within a small relinquished area that is centred about 37 km north-northeast of Cowell, along the fault scarp at the edge of the western Spencer Gulf coastal plain, exploration for uranium has concentrated on identifying possible IOCG type... Within a small relinquished area that is centred about 37 km north-northeast of Cowell, along the fault scarp at the edge of the western Spencer Gulf coastal plain, exploration for uranium has concentrated on identifying possible IOCG type mineralisation formed in buried Hiltaba Suite basement, and hopefully also, establishing the presence of related younger Tertiary sandstone-hosted secondary uranium deposits in a similar setting to that of the recently discovered Eocene sedimentary uranium occurrence at Mullaquana, which is located not far distant to the north-east. The only field work done on this area by the licensee occurred during December 2010, when 10 of 82 ground gravity stations were read at 200 m spacing along roadside traverses located within it. The subset of gravity data so obtained is herewith presented. The licensee has stated that on-ground exploration of the subject part of EL 4400 has been limited owing to the following factors: - the discovery of large areas of the tenement covered by Native Vegetation Heritage Agreements (HA 462, 468, 628, 809 and 977) that were not described in the licence documentation or in any DMITRE public domain databases; and - the current lack of support for nuclear power, and the stagnation of the uranium price since the tsunami-induced accident at Japan’s Fukishima Daiichi nuclear power plant in March 2011, which has made obtaining funds for uranium-based mineral exploration difficult.

A area centred ~ 25 km west of Cleve is being explored for possible buried economic sediment-hosted or basement unconformity - related uranium mineralisation. The tenement covers part of the Driver River and Driver River Pan which contains a... A area centred ~ 25 km west of Cleve is being explored for possible buried economic sediment-hosted or basement unconformity - related uranium mineralisation. The tenement covers part of the Driver River and Driver River Pan which contains a radiometric anomaly first discovered and investigated by SADM in 1954. No field work occurred during licence Years 1 and 2. Instead, Southern Cross Resources conducted a review of available historic exploration records and data, and made plans to acquire ground geophysical surveys to assist in defining drill targets, owing to the apparent inability of AEM methods to see through saline groundwater commonly present within the local cover. The company's compilation of past drilling data indicated that basement rock was not intersected by the 1978-1983 Pancontinental drillholes that are located within probable target areas. During licence Year 3, SXR / UraniumOne performed the following field activities: • acquisition in October 2006 of a detailed ground gravity survey totalling 133 stations read along 13 N-S trending lines; • acquisition in November 2006 of IP and resistivity measurements along two E-W oriented Pole-Dipole Induced Polarization survey traverses amounting to 6.3 line km coverage; and • the drilling in January-February 2007 of a single angled exploratory diamond cored hole (KAR001) to a total depth of 672 m, with its cost partly subsidised by the SA Government as part of PACE Intiative Year 3 collaborative drilling project DPY3-01 [for the drilling final report, see related Env 11347]. The NQ drill core from this hole was geologically and structurally logged, and samples were geochemically assayed and selected ones were examined by a petrological consultant. During licence Year 4, in June 2008, UraniumOne drilled another 3 angled NQ diamond cored holes for 533 m to investigate the unconformable contact between Palaeoproterozoic Hutchison Group metasediments and younger, Mesoproterozoic Blue Range Bed sediments for unconformity-style uranium mineralisation. However, no uranium mineralisation or associated alteration were detected, and unexpectedly, the target Blue Range Beds formation was missing at the localities tested. Previously, KAR001, which is located some 28 km to the south of KAR002-KAR004, had intersected the unconformity between the Blue Range Beds and Hutchison Group metasediments at ~627 m downhole (equals ~525 m true vertical depth). To the licensee, this newfound stratigraphic discrepancy now implied that either the basement shallows significantly to the north, or that the strata are offset by E-W trending faults. Notwithstanding this unexpected result, the fact that all of the 2008 drillholes had encountered Palaeoproterozoic metasediments exhibiting metamorphic and retrograde mineralogy that reflects hydrous conditions with episodic migration of oxidative fluids was believed to show that potential still exists in the Karkarook region for past uranium mobilisation and the formation of mineralisation. On the assumption that the unconformity lies further to the south, such places where it occurs at fairly shallow depths would be targeted by future drilling. No field work occurred during licence Years 5 and 6. During licence Year 7, in February-March 2011, the licensee acquired a ground-based audio frequency magnetotelluric (AMT) survey entailing 114 readings taken along two north-south lines at 100 m station spacing, for a total coverage of 11.2 line km, to try to measure depth to the top-of-basement unconformity. The survey data profiles showed basement lying close to the surface at the northern end of each line, but becoming increasingly deeper further to the south; there were also indications of a transverse fault offsetting the cover and basement in both sections. During July 2011, a ground based radiometric survey was carried out around the Driver River salt pans in the southern portion of EL 4304 to further assess the sedimentary uranium potential of the cover there. 120 spectrometer readings were taken, with several readings being obtained that were in excess of 20,000 counts per second. At the same time, 7 stream sediment geochemical samples were collected for laboratory assaying. Based on those assay results, which returned very low values for uranium, and thus indicated that radon was giving the very high radiometric anomalies, a further 22 auger samples of the river sediments were collected in the area in August 2011 specifically to reveal the depth of the radiometric anomaly in the stream bed, and also to determine the sediment grains' mineral composition for precisely identifying the source of the radon radiometric anomalies. No other work ensued during the next three years, and due to the ongoing worldwide depressed market price for uranium, which had caused UraniumOne to stop production at the Honeymoon ISL uranium mine and to place it into care and maintenance status, the company decided on 11/3/2014 to cease its uranium exploration on EL 4304 and to leave the joint venture.