Magmatic characteristics and crystallization condition of the Gasht- Masuleh gabbros (North of Iran) based on clinopyroxene and orthopyroxene composition [PDF]
The Alborz Range, as a part of the Alpine-Himalayan orogeny, formed during the Cimmerian orogeny due to northward movements of the Central Iran micro-plate towards Eurasia.
Leila Rezaei +2 more
doaj +1 more source
Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement
Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm +2 more
wiley +1 more source
Thermobar: An open-source Python3 tool for thermobarometry and hygrometry
We present Thermobar, a new open-source Python3 package for calculating pressures, temperatures, and melt compositions from mineral and mineral-melt equilibrium.
Penny Wieser +6 more
doaj +1 more source
Uralitization – An example from Kuusamo, Finland [PDF]
The course of events as well as the chemical changes associated with the alteration of clinopyroxenes to uralite have been studied from diabases in Kuusamo, Finland.
R. Piispanen, T. Alapieti
doaj +1 more source
GEOCHEMICAL FEATURES OF SULFIDES OF THE AKTASH MAGNETITE-POLYMETALLIC DEPOSIT, WESTERN KARAMAZAR, TAJIKISTAN (LA-ICP-MS DATA) [PDF]
The distribution of trace elements in sulfides from various ores of the Aktash magnetitepolymetallic deposit (Tajikistan) is studied using LA-ICP-MS method. Sulfides partly replace banded magnetite ores.
U.A. Yatimov +2 more
doaj +1 more source
In near‐infrared spectral studies, the relationship between the 1‐μm absorption (Band I) center and the band area ratio (BAR, the area ratio of 2–1‐μm absorption features) is useful in compositional and mineralogical analyses of ferrous mineral‐bearing ...
Xunyu Zhang, Edward Cloutis
doaj +1 more source
The role of complexing agents in the flotation of pentlandite-pyroxene mixtures [PDF]
Bibliography: leaves 137-146.This study examines the role complexing agents play in pentlandite-pyroxene flotation and focuses on the surface chemistry and interaction between valuable and gangue minerals as well as the interaction of complexing agents ...
Shackleton, Natalie Jean
core +1 more source
Investigation of the surface properties of gangue minerals in PGM bearing ores [PDF]
Bibliography: leaves 90-95.The recovery of Platinum Group Minerals (PGM) and associated sulphides by froth flotation from the Bushveld Igneous Complex is complicated by the presence of naturally floatable gangue minerals such as talc.
Martinovic, Jasmina
core +1 more source
40Ar/39Ar geochronology of terrestrial pyroxene
Geochronological techniques such as U/Pb in zircon and baddeleyite and 40Ar/39Ar on a vast range of minerals, including sanidine, plagioclase, and biotite, provide means to date an array of different geologic processes.
Ware, B. +3 more
core +2 more sources
Mineralogy and Petrology of an Olivine Diabase Sill Complex and Associated Unusually Potassic Granophyres, Sierra Ancha, Central Arizona [PDF]
The Precambrian Sierra Ancha sill complex, 700 to 800 feet thick, was intruded into flat-lying sedimentary rocks of the Apache Group in central Arizona. The bulk of the complex consists of a central layer of feldspathic olivine-rich diabase and upper and
Smith, Douglas
core +1 more source

