Results 91 to 100 of about 197,145 (380)
Jarosite versus Soluble Iron-Sulfate Formation and Their Role in Acid Mine Drainage Formation at the Pan de Azúcar Mine Tailings (Zn-Pb-Ag), NW Argentina [PDF]
Secondary jarosite and water-soluble iron-sulfate minerals control the composition of acid mine waters formed by the oxidation of sulfide in tailings impoundments at the (Zn-Pb-Ag) Pan de Azúcar mine located in the Pozuelos Lagoon Basin (semi-arid ...
Alicia Kirschbaum+5 more
core +3 more sources
Abstract Oil sands exploration generates large volumes of mature fine tailings—mixtures of clays, water, and residual bitumen—that remain stable even after settling in tailings ponds for many years. Commonly used flocculants, such as neutral and anionic polyacrylamides, destabilize the colloidal interactions between the clay particles, but ...
Kilian Slöetjes, João B. P. Soares
wiley +1 more source
SULFUR ISOTOPIC COMPOSITION OF SULFIDES FROM THE DESTRUCTION PRODUCTS OF PALEOSMOKER FROM THE YUBILEYNOE VHMS DEPOSIT (SOUTHERN URALS) [PDF]
Variations in sulfur composition of sulfides from fragments of the paleosmoker chimneys, sulfide turbidites, and products of their seafloor alteration are determined.
A.S. Tseluyko+3 more
doaj
Mineralogical Characteristics of Specimens of a Meteorwrong Fall from NW Iran [PDF]
In the early hours of October 22, 2011, people of a small town in NW Iran, called Khameneh (38{\deg}11'47" N, 45{\deg}38'14" E) noticed sounds of some colliding objects to home roofs and yard floors. Mineralogical investigations revealed the terrestrial and man-made origin of these stony samples.
arxiv
This study explores the anti‐cancer potential of N‐methylated open‐ring derivatives of carborane‐substituted diclofenac analogs. By N‐methylation, the open‐chain form could be trapped and cyclization back to lactam or amidine derivatives was inhibited.
Christoph Selg+12 more
wiley +1 more source
The sapphirine-spinel hornblendites of Il’meno-Vishnevogorsky complex
The authors consolidated disparate information about sapphirine-bearing rocks of the Urals. It is shown that they belong to genetically different entities.
V. G. Korinevsky+6 more
doaj +2 more sources
Correlated modal mineralogy, aqueous alteration and oxygen isotope composition of CM Chondrites [PDF]
In this study we move beyond defining alteration sequences in CM chondrites towards understanding the relationship between modal mineralogy, the extent of aqueous alteration and O-isotope ...
Benedix, G. K.+5 more
core
Time-resolved Raman spectroscopy for in situ planetary mineralogy [PDF]
Planetary mineralogy can be revealed through a variety of remote sensing and in situ investigations that precede any plans for eventual sample return. We briefly review those techniques and focus on the capabilities for on-surface in situ examination of ...
Blacksberg, Jordana+2 more
core +2 more sources