Results 101 to 110 of about 83,496 (259)

Climate conditions on the South‐Iberian Palaeomargin during the latest Pliensbachian to early Toarcian: A mineralogical and geochemical study from hemipelagic deposits

Sedimentology, EarlyView.
ABSTRACT The integrated analysis of lithofacies, mineralogy and geochemistry of the hemipelagic marine succession exposed in La Cerradura section (South‐Iberian Palaeomargin) provides new information to characterise the palaeoenvironmental conditions during the latest Pliensbachian to early Toarcian, including the Jenkyns Event.
Chaima Ayadi, Isabel Abad, Elisa Laita, Ali Mokhtar Samet, Matías Reolid   +4 more
wiley   +1 more source

A tale of two microbialites: Stromatolites and microbially induced sedimentary structures

Sedimentology, EarlyView.
ABSTRACT Microbialites are biosedimentary structures built by microbial mats. Five microbialite groups are distinguished: stromatolites, thrombolites, dendrolites, leiloites and microbially induced sedimentary structures (MISS). This contribution discusses the two most abundant microbialite groups in marine settings, stromatolites and MISS.
Nora Noffke, Stanley M. Awramik
wiley   +1 more source

Leaching of pyrite in cupric chloride solution

E3S Web of Conferences, 2016
Pyrite (FeS2) is the most abundant sulphide mineral in the world and may contain significant amounts of gold locked in its structure. Traditionally, pyrite has to be oxidized in order to break down the mineral matrix for better gold liberation by e.g ...
Elomaa Heini, Lundström Mari
doaj   +1 more source

Sedimentology of silica granules and haematite in the 3.47 Ga Antarctic Creek Member, Mount Ada Basalt, Western Australia

Sedimentology, EarlyView.
ABSTRACT The Paleoarchean Antarctic Creek Member of the Mount Ada Basalt, Eastern Pilbara Terrane, Western Australia, includes beds of jasper and white chert composed of sand‐sized silica granules that often contain or are mixed with silt‐sized particles of haematite.
Donald R. Lowe, Gary R. Byerly
wiley   +1 more source

Exploration for volcanogenic sulphide mineralisation at Benglog, north Wales [PDF]

, 1983
Exploration for volcanogenic sulphide mineralisation around Benglog is one of three investigations designed to assess the metallogenic potential of the Ordovician Aran Volcanic Group.
Allen, P.M., Cameron, D.G., Cooper, D.C., Jackson, Audrey A., Parker, M.E.   +4 more
core  

New insights into pyrite in the Western Mecsek uranium ore deposit: its morphology, invisible gold and trace element composition

Bulletin of the Mineral Research and Exploration
This study presents the occurrence of invisible gold and associated trace elements in pyrite from the Late Permian Kővágószőlős Sandstone Formation within the Western Mecsek uranium ore deposit, Hungary. Eight pyrite-rich drill-core samples were analyzed
Medet Junussov, Rustem Abirov, Gulnur Mekenbek, Aizada Assambayeva, Nessipzhan Mukhamediyarova   +4 more
doaj   +1 more source

GOLDEN PYRITES FROM THE IBERIAN PYRITE BELT [PDF]

Goldschmidt2021 abstracts, 2021
Lola Yesares Ortiz, Rubén Piña, Jose María González-Jiménez, Sáez Ramos Reinaldo, Gabriel Ruiz de Almodovar, Joaquín Proenza, Juan Manuel Pons   +6 more
openaire   +1 more source

Evolution Model for the Paleoproterozoic Talvivaara Mudstone‐Hosted Ni‐Zn‐Cu‐Co Deposit in Fennoscandia

Terra Nova, EarlyView.
ABSTRACT The Paleoproterozoic Talvivaara mudstone is a very large sulfidic Ni‐Co deposit that records enhanced organic matter accumulation during the global Shunga Event. Here, rock geochemistry and microscale S and Fe isotope composition of in situ pyrrhotites and pyrites are studied in well‐characterised, well‐preserved drill core samples.
Raimo Lahtinen, Jaakko J. Laitala, Joonas J. Virtasalo, Martin J. Whitehouse   +3 more
wiley   +1 more source

Mineral processing analysis in artisanal gold mining, Peru [PDF]

, 2015
Peer ReviewedPostprint (published ...
Alfonso Abella, María Pura, Anticoi Sudzuki, Hernán Francisco, Bascompta Massanes, Marc, Palacios Ubach, Sílvia   +3 more
core   +2 more sources

Microtopochemistry of pyrite nodules of siliceous siltstones from the Yubileinoe massive sulfide deposit (the Southеrn Urals): LA-IСP-MS data

Литосфера, 2018
Object . The zonal pyrite nodules and metacrystals from siliceous siltstones of ore-bearing horizon of the Second ore body from the Yubileynoe massive sulfide deposit are studied. Materials and methods .
Alexander S. Tseluyko, Valery V. Maslennikov, Dmitry A. Artem’Yev   +2 more
doaj   +1 more source