Results 151 to 160 of about 6,899 (241)

Investigation of microalgal tolerance and growth in simulated tailings pond water containing naphthenic acids

The Canadian Journal of Chemical Engineering, Volume 104, Issue 4, Page 1877-1888, April 2026.
Abstract Oil sands tailings ponds, such as those in northeastern Alberta, present environmental challenges due to slow sedimentation, water entrapment, and toxic naphthenic acids (NAs), which hinder water reclamation. This study assessed the tolerance and biodegradation potential of Chlorella vulgaris (C.
Amin Kalbasi, Amarjeet Bassi
wiley   +1 more source

Mantle-derived fluid flux controls Olympic Dam-style Fe oxide-Cu-Au mineralisation. [PDF]

Sci Rep
Thiel S, Reid A, Heinson G, Brand K, Li L.   +4 more
europepmc   +1 more source

Rethinking Collinearity in Self‐Organizing Maps: Evidence From Geophysical Data Classification

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 2, April 2026.
Abstract This study examines the impact of collinearity on unsupervised machine learning algorithms (UMLAs), specifically Self‐Organizing Maps (SOMs), for detecting lithological boundaries in geophysical data. Using a multi‐scale experimental framework that includes bivariate isotropic clusters, geologically complex Noddy simulations, and real‐world ...
Limin Xu, Leonardo Feltrin, Eleanor C. R. Green   +2 more
wiley   +1 more source

REE in fluid inclusions of quartz from gold deposits of north-eastern Russia

Open Geosciences, 2012
Vikent’eva Olga, Gamyanin Gennady, Bortnikov Nikolay   +2 more
doaj   +1 more source

Temporal changes in Angkorian ironmaking technology in Northern Cambodia during the 10th-14th centuries. [PDF]

Sci Rep
Azami K, Uchida E, Mizumori A, Kobayashi Y, Kuriyama K, Nakamura T, Kato Y.   +6 more
europepmc   +1 more source

‘You Load Sixteen Tons, What Do You Get?’. The Jodłowno Hoard (Pomerania, Poland) as Evidence of Long‐Distance Contacts in the Early Iron Age

Archaeometry, Volume 68, Issue 2, Page 193-211, April 2026.
ABSTRACT This study presents multifaceted analyses of metal artefacts from the Jodłowno Hoard (Northern Poland), revealing that the metal originated from Iberian polymetallic ore deposits. Transported as raw ingots via Atlantic maritime routes, this copper was reworked locally into regionally distinctive forms.
K. Nowak, P. Gan, Z. Stos‐Gale, K. Cywa, J. Karasiński   +4 more
wiley   +1 more source

Tectonic evolution and mineralization exploration of Lujing uranium ore field, South China. [PDF]

Sci Rep
Ren W, Li H, Guan A, Gao S, Wang Q, Ouyang P, Cao H, Sun Y, Yan F.   +8 more
europepmc   +1 more source

Tin–Lead Sewn Tokens From 13th‐Century Gdańsk: Assessing Local and Non‐Local Production Through Archaeometric Analysis

Archaeometry, Volume 68, Issue 2, Page 274-285, April 2026.
ABSTRACT This study presents the results of an interdisciplinary investigation of 98 tin–lead sewn tokens from 13th‐century Gdańsk, the largest assemblage of its kind in Central Europe. Combining archaeological context, typology, SEM‐EDS and lead isotope analysis, the research explores provenance, production and function.
Sławomir Wadyl, Jakub Karczewski, Ewelina Miśta‐Jakubowska, Jakub Karasiński, Klaudia Tetfejer   +4 more
wiley   +1 more source

Asynchronous transfer of magmas and mineralizing fluids in a plutonic-subvolcanic-volcanic plumbing system. [PDF]

Sci Rep
Paoli G, Dini A, Vezzoni S, Ovtcharova M, Rocchi S.   +4 more
europepmc   +1 more source

The heterogeneous impact of European Central Bank asset price surprises on corporate liquidity demand

Economica, Volume 93, Issue 370, Page 552-576, April 2026.
Abstract Theories of corporate liquidity demand build on the notion that firms accumulate cash to safeguard their activities in the face of costly external finance. Monetary policy provides a clear source of exogenous variation in the external finance premium.
Benedicta Marzinotto
wiley   +1 more source