scholarly journals Uranium mineralization in the Alum Shale Formation (Sweden): Evolution of a U-rich marine black shale from sedimentation to metamorphism

2017 ◽  
Vol 88 ◽  
pp. 71-98 ◽  
Author(s):  
Andreï Lecomte ◽  
Michel Cathelineau ◽  
Raymond Michels ◽  
Chantal Peiffert ◽  
Marc Brouand
2021 ◽  
Vol 48 (6) ◽  
pp. 1304-1314
Author(s):  
Bin ZHANG ◽  
Zhiguo MAO ◽  
Zhongyi ZHANG ◽  
Yilin YUAN ◽  
Xiaoliang CHEN ◽  
...  

2019 ◽  
Vol 9 (1) ◽  
pp. 14
Author(s):  
Michael Iannicelli

Even though the author already incorporated the citation of Sinninghe-Damste & Schouten (2006) into the text of the paper, the author regrets having failed to include their full citation within the Reference Section of my above paper which is: Sinninghe-Damste, J. S. & Schouton, S. (2006). Biological markers for anoxia in the photic zone of the water column. In, Volkman, J. K. (ed.), Marine Organic Matter: Biomarkers, Isotopes and DNA, (pp. 127 – 163). The Handbook of Environmental Chemistry, vol. 2N. Springer: Berlin and Heidelberg. https://doi.org/10.1007/698_2_005 The author also needs to paraphrase a statement made in the last three lines of the 2nd paragraph on page 40 where it reads as: “Thus, we may conclude here that paleo-upfreezing of any conodont-element(s) originally buried in the pre-lithified, light-colored shale occurred in order to account for their presence in black shale”. Instead, in lieu of that statement, it should read as “At this point in time of the study, we may tentatively conclude here while completely concluding later in the study, that conodont-elements originally existing in the underlying, pre-lithified, light-colored shale, had to paleo-upfreeze vertically upward into pre-lithified, black shale sediment in order to account for their presence in lithified black shale”.


Fuel ◽  
2022 ◽  
Vol 312 ◽  
pp. 122865
Author(s):  
Kang Li ◽  
Zhongfeng Zhao ◽  
Hong Lu ◽  
Xinran Liu ◽  
Ping'an Peng ◽  
...  

Preservation of soft integument in calcareous nodules seems to be more widespread geographically and stratigraphically than hitherto realized. It cannot be recognized in the field, and to recover such material requires special etching techniques. Such preservation can be of exceptional quality, with fossils preserved three dimensionally either by secondary phosphatization or by silicification. Coating as well as the replacement of integument has been observed even within the same sample. Methodical search for such preservation may be based on the common denominators of depositional, geochemical, and environmental indicators in previously described occurrences. As such exceptionally preserved material may be rare within the samples, large quantities of rock have to be prepared. The examples described here are from anthraconitic limestones (Orsten) of the Upper Cambrian Alum Shale Formation in Sweden. They are now known from many localities and from different trilobite zones. In addition nodules from the Lower Cretaceous Santana Formation in Brazil, the Upper Devonian cephalopod limestone in the Carnic Alps, the Lower Triassic of Spitzbergen and the Miocene Barstow Formation in California have all yielded extremely fine material.


2008 ◽  
Vol 72 (15) ◽  
pp. 3703-3717 ◽  
Author(s):  
C. März ◽  
S.W. Poulton ◽  
B. Beckmann ◽  
K. Küster ◽  
T. Wagner ◽  
...  

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