Abstract The Coles Hill uranium deposit, with an indicated resource of about 130 Mlb U3O8, is the largest unmined deposit in United States. hosted Taconian (approx. 480–450 Ma) Martinsville igneous complex, which consists Ordovician Leatherwood Granite (granodiorite) and Silurian Rich Acres Formation (diorite). host rock was metamorphosed to orthogneiss during Alleghanian orogeny 325–260 Ma), w...

Natural analogues allow scientists to investigate biogeochemical processes relevant to radioactive waste disposal that occur on time scales longer than those that may be studied by time-limited laboratory experiments. The Palmottu U-Th deposit in Finland and the Bangombé natural nuclear reactor in Gabon involve the study of natural uranium, and are both considered natural analogues for subsurfa...

The present study aims to investigate the textural, mineralogical and geochemical characteristics of lean grade placer monazite from Bramhagiri beach sand deposit assess possibility for its use in industrial applications. bulk back dune with 18 samples showed elements uranium thorium traces, phosphorus calcium minor amounts, alumina, silica titanium major amounts. Since apatite was absent this ...

This study is part of the ongoing environmental monitoring program abandoned Mecsek uranium mine. On mine’s recultivated spoil deposit No. I, anomalies that refer to possible migration alongside slope were detected. The present was conducted supplement with a sampling strategy and analytical methods can characterize mobility potentially toxic elements radionuclides. A developed: vegetation soil...

Dump consisting of 9500 tons of rich-in-pyrite mining wastes located in the uranium deposit Curilo, Western Bulgaria, was, after rainfall, an intensive source of acid drainage waters. These waters had a pH in the range of about 1.7-4.5 and contained radionuclides (uranium, radium), heavy metals (copper, zinc, cadmium, lead, nickel, cobalt, iron, and manganese), arsenic and sulphates in concentr...

The Zoovch Ovoo uranium roll-front-type deposit is hosted in the Sainshand Formation, a Late Cretaceous siliciclastic reservoir, which constitutes upper part of post-rift infilling Mesozoic East Gobi Basin SE Mongolia. Formation consists unconsolidated medium-grained sand, silt and clay intervals deposited fluvial-lacustrine settings. confined within 60–80 m thick sequence inside aquifer-driven...

This paper investigates the monazite grains from Dibrova rare-earth-thorium-uranium (U-Th-REE) mineral deposit within Azov Megablock of Ukrainian Shield. U-Th-REE mineralization is associated with K-feldspar-quartz metasandstones and metagritstones (hereafter quartzites) pegmatoids. The latter possibly represent products ultrametamorphism/granitization initially sedimentary clastic rocks during...