... equilibria in seawater and interstitial waters. Thesis, Oregon State University, USA. Barale, G., Bernier, P., Bourseau, J.-P., Buffetaut, E., Gaillard, C., Gall, J.-C. & Wenz, S. 1985. Cerin, une lagune tropicale au temps des dinosaures. CNRS. Muséum de Lyon. Barthel, K.W., Swinburne, N.H.M...

... of alpha particles emitted from the radioactive decay of uranium and thorium (and their radioactive progenies), and thus are useful for defining and tracing the pathways of ancient uranium-bearing fluids ( Cerin et al . 2017 ). Upon irradiation, a material can undergo ionization and electron...

... and associated alteration halos from five uranium deposits (Arrow, Cigar Lake, Key Lake, McArthur River, and Phoenix) in the Athabasca basin contain elevated contents of uranium (up to 2.16 wt.% UO 3 ). Synchrotron U L 3 -edge X-ray absorption spectroscopy (XAS) and U 4 f X-ray photoelectron spectroscopy (XPS...

... to the taphonomic conditions observed at Cerin. Indeed, the Kimmeridgian lithographic limestones of this French Lagerstätte have yielded only a few isolated pterosaur bones, whereas other reptiles are more abundant and much better preserved, for reasons that remain unclear (Buffetaut et al . 1990 ). The teeth...

...Jeremy W. Powell; Jeanne B. Percival; Eric G. Potter; Roelant van der Lelij; Ruikai Xie Abstract The Patterson Lake Corridor (PLC) along the southwestern margin of the Athabasca Basin contains high-grade uranium deposits entirely within crystalline basement rocks. Visible–near infrared–shortwave...

... and light green–gray sandstones, were deposited in deltaic and lakeshore to moderately-deep lake environments ( Gu et al. 2003 ). The Huangyangquan tracksite has abundant vertebrate tracks including those of shorebirds, pterosaurs, and dinosaurs (theropods and stegosaurs) present alongside invertebrate...

...M. Rabiei; G. Chi; E. G. Potter; V. Tschirhart; C. MacKay; S. Frostad; R. McElroy; R. Ashley; B. McEwan Abstract The Patterson Lake corridor (PLC) in the southwestern margin of the Athabasca Basin hosts several high-grade uranium deposits. These deposits are located in the basement up to 900 m...

... (e.g. feathers, scales, hair). The discovery that Pelecanimimus preserves labile tissues mineralized in iron carbonate confirms the importance of minerals like siderite in preserving soft tissues in lake settings (Wuttke 1983; Allison 1988). Elsewhere the soft tissues of Pelecanimimus are preserved...

... corresponds to an ancient lake filled with 6 m of Lateglacial to historic sediments. The numerous cores and excavations previously performed in basin areas show the presence of thick fine grained and carbonated lake deposits. The mineralogical study of these deposits allows us to distinguish two main types...

... . Contribution of bacteria to release and fixation of phosphorus in lake sediments : Limnology and Oceanography , v. 33 , p. 1542 – 1558 . Grotzinger , J.P. , Watters , W.A. , and Knoll , A.H. , 2000 . Calcified metazoans in thrombolite-stromatolite reefs of the terminal Proterozoic Nama...

... the Patterson Lake corridor. The Arrow deposit (indicated mineral resource: 256.6 Mlb U 3 O 8 ; grade 4.03% U 3 O 8 ) is along this trend, hosted exclusively in basement orthogneisses of the Taltson domain, and is the largest undeveloped uranium deposit in the basin. This study is the first detailed analysis...

... development of innovative multi-media surface sampling and analytical methods, culminated with the Stewardson Lake uranium exploration project in the Proterozoic Athabasca Basin, Canada. Soil clay separates, pine and spruce tree cores and vegetation, and glacially transported sandstone boulders collected...

...Victoria Tschirhart; Sally Pehrsson; Colin Card; Eric G. Potter; Jeremy Powell; Dinu Pană Abstract Recent discoveries of basement-hosted uranium deposits in the Patterson Lake corridor in the southwestern Athabasca Basin of Canada have brought vigorous exploration interest to the region. New...

... largely represent alluvial plains with shallow streams and floodplains with often calcareous soils and shallow ponds and lakes (Rogers, 1997 ). The Two Medicine Formation overlies the shallow-marine Virgelle Sandstone and is in turn overlain by the shallow-marine Horsethief Sandstone ( Fig. 2 ). Two...

... these changes in environmental conditions promote preservation and enhance the likelihood of mineralization. Samples of microbial mats were collected from the Salada de Chiprana (Zaragoza, NE Spain), the only hypersaline and permanent inland shallow lake in Spain. It occurs in the Bajo Aragón semi...

...Daniele Cerin; Jens GÖtze; Yuanming Pan Abstract Radiation-induced damage in quartz from the overlying Athabasca Supergroup sandstones and the basement host rocks at the Arrow uranium deposit in the southwestern margin of the Athabasca basin, Saskatchewan, has been investigated by electron...

...Eric G. Potter; Colter J. Kelly; William J. Davis; Guoxiang Chi; Shao-Yong Jiang; Morteza Rabiei; Brian J. McEwan Abstract The Patterson Lake corridor is a new uranium district located on the southwestern margin of the Athabasca Basin. Known resources extend almost 1 km below the unconformity...

..., and shallow lake of endorheic origin in a semiarid region of the Ebro depression (Aragon, northeastern Spain). Salinity arises from the continuous arrival of mineralized water containing magnesium sulphate and sodium chloride, which are the main salts in this environment. Microbial mats, enhanced...

... Gyraulus (Planorbidae) ( Gorthner 1992 ). The Steinheim snails were investigated by Franz Hilgendorf in the 1860s, who documented a now classic example of endemic speciation and generated the first phylogenetic tree ( Hilgendorf 1867 ; Rasser 2014 ). Other Neogene lake sequences in central...