Results 101 to 110 of about 27,756 (243)

Effects of Chlorite Alteration on Uranium Redistribution in Koongarra, Australia

, 1990
The relevance of alteration of chlorite, one of the major constituent minerals of the host rock to uranium ore at Koongarra, to the redistribution of uranium in the vicinity of the ore deposit has been examined.
Takashi Murakami, Robert Edis, Hiroshi Isobe   +2 more
core   +1 more source

Feldspar Albitization With Implications for Reservoir Quality Evolution of Eocene Turbidite Sandstones in Offshore Espírito Santo Basin, Eastern Brazil

Journal of Petroleum Geology, EarlyView.
ABSTRACT The diagenetic albitization of plagioclase and K‐feldspar grains is a transformative process that significantly alters sandstone's detrital composition and formation water chemistry, impacting reservoir quality. In this study, Eocene turbidite sandstones from the offshore Espírito Santo Basin, Brazil, were investigated to elucidate the role of
Eveline E. Zambonato, Luiz F. De Ros, Howri Mansurbeg   +2 more
wiley   +1 more source

Rethinking microtidal systems: Tidal signatures in the fluvial deposits of the Po River, Italy

Sedimentology, EarlyView.
ABSTRACT In microtidally influenced rivers, tides are generally assumed to leave virtually no signatures in the sedimentary record. However, this hypothesis has been surprisingly poorly tested using modern river analogues, which provide an opportunity to assess whether sedimentary signatures of microtidal regimes can develop in rivers that lack ...
Anna E. van Yperen, Alvise Finotello, Riccardo Maitan, Ivar Midtkandal, Fabrizio Nestola, Davide Tognin, Massimiliano Ghinassi   +6 more
wiley   +1 more source

Kinetics and Mechanism of Oxidation of Methimazole by Chlorite in Slightly Acidic Media

, 2016
The kinetics and mechanism of the oxidation of methimazole (1-methyl-3H-imidazole), MMI, by chlorite in mildly acidic environments were studied. It is a complex reaction that gives oligo-oscillations in chlorine dioxide concentrations in excess chlorite ...
Kudzanai Chipiso, Chipiso, Kudzanai, Reuben H. Simoyi, Simoyi, Reuben H.   +3 more
core   +1 more source

Salt Range Formation of Pakistan Preserves Unique Record of Volcanic Fertilization During the Ediacaran Shuram Excursion

Terra Nova, EarlyView.
ABSTRACT Thin, discontinuous, organic‐rich oil shale beds in the siliciclastic‐evaporitic Salt Range Formation (SRF) of Pakistan are of approximate Neoproterozoic to Cambrian age based on stratigraphic constraints. The beds are enriched (26–43 wt.% total organic carbon, TOC) in aliphatic organic matter (OM) of low thermal maturity despite their ...
Paul C. Hackley, Ryan J. McAleer, Jay M. Thompson, Brett J. Valentine, Imran Khan   +4 more
wiley   +1 more source

Detecting chlorite in the Chinese loess sequence by diffuse reflectance spectroscopy [PDF]

, 2006
Chlorite is one of the most common Fe-bearing minerals and is susceptible to weathering in loess and soils. The conventional method for analyzing chlorite, based on XRD with the Rietveld technique, is quantitative, but very time consuming and expensive ...
Wu, Tao, Zhao, Liang, Chen, Jun, Ji, Junfeng, Balsam, William, Liu, Lianwen   +5 more
core   +1 more source

Actinolite-Phengite-Chlorite Metasomatites from the Toranica Pb-Zn Ore Deposit in Macedonia [PDF]

, 2006
In this investigation we focused on the contact metamorphic-metasomatic products in the Toranica Pb-Zn ore deposit. In the regionally metamorphed parts of the deposit we detected sericite-chlorite sub-facies, in the frame of the greenschist facies with ...
Dolenec, Tadej, Tasev, Goran, Serafimovski, Todor   +2 more
core   +1 more source

Major elements geochemistry of chlorite in different ore deposits and its genesis and exploration significance: a case study from Naruo porphyry Cu deposit in Duolong ore district, Tibet

Frontiers in Earth Science
Chlorite is present extensively in many types of deposits. The mechanism underlying the chemical variations in chlorite remains unclear. The Naruo porphyry deposit is a giant copper porphyry deposit in the Duolong ore district of Tibet.
Faqiao Li, Juxing Tang, Yang Song, She Li, Pan Tang, Haifeng Li, Huanhuan Yang, Qin Wang, Yongqiang Wang, Zongzhui Danzeng, Yanbo Li, Jianli Li, Hongwei Li, Yujie Dong   +13 more
doaj   +1 more source

U–Pb Dating of Cambrian Magmatism in the Pinerolo‐Sanfront Unit, Dora‐Maira Massif (Western Alps)

Terra Nova, EarlyView.
ABSTRACT The Pinerolo‐Sanfront Unit (PSU), the structurally lowest tectonic unit of the Dora‐Maira Massif (Western Alps), has been regarded as a monocyclic unit composed of Permo‐Carboniferous sediments and Permian granitoids that were metamorphosed during the Alpine orogeny.
Francesco De Cesari, Davide Dana, Salvatore Iaccarino, Chiara Montomoli, Alberto Corno, Daniela Rubatto, Rodolfo Carosi   +6 more
wiley   +1 more source

Occurrence and Levels of Glyphosate, Chlorate and Perchlorate in Irish Drinking Water: A Pilot Study

Water and Environment Journal, EarlyView.
ABSTRACT Safe drinking water is a crucial component of public health. Pesticides and disinfection byproducts are known pollutants of concern. This study aimed to investigate the levels of the herbicide glyphosate and disinfection byproducts in Irish drinking water.
Sewon Lee, Marie A. Coggins, Jim Garvey, Alison Connolly   +3 more
wiley   +1 more source