Results 41 to 50 of about 224,796 (336)

MINERAL COMPOSITION OF PROCESSING WASTES OF TITANOMAGNETITE ORES FROM THE KUSA DEPOSIT (SOUTH URALS) [PDF]

open access: yesМинералогия, 2016
The dumps of processing wastes (tales) of titanomagnetite ores from the Kusa deposit located in the southwestern margin of the settlement of Magnitka, Chelyabinst district (South Urals) began to form in 1948.
V.I. Popova   +3 more
doaj  

opXRD: Open Experimental Powder X‐Ray Diffraction Database

open access: yesAdvanced Intelligent Discovery, EarlyView.
We introduce the Open Experimental Powder X‐ray Diffraction Database, the largest openly accessible collection of experimental powder diffractograms, comprising over 92,000 patterns collected across diverse material classes and experimental setups. Our ongoing effort aims to guide machine learning research toward fully automated analysis of pXRD data ...
Daniel Hollarek   +23 more
wiley   +1 more source

An integrated mineralogical, petrographic, light stable isotope and noble gas investigation of Sahara 99201 ureilite [PDF]

open access: yes, 2001
New ureilite Sahara 99201 has been investigated to determine mineralogy, petrography, light stable isotopes and noble gases. The sample is a typical olivine pigeonite ureilite (Fo 78, Wo 10, En 72).
Franchi, Ian   +5 more
core  

Mineralogical Characterization of Baptistina Asteroid Family: Implications for K/T Impactor Source

open access: yes, 2011
Bottke et al. (2007) linked the catastrophic formation of Baptistina Asteroid Family (BAF) to the K/T impact event. This linkage was based on dynamical and compositional evidence, which suggested the impactor had a composition similar to CM2 carbonaceous
Candal, Alvaro Alvarez   +10 more
core   +1 more source

Routine characterization and interpretation of complex alkali feldspar intergrowths [PDF]

open access: yes, 2015
Almost all alkali feldspar crystals contain a rich inventory of exsolution, twin, and domain microtextures that form subsequent to crystal growth and provide a record of the thermal history of the crystal and often of its involvement in replacement ...
Fitz Gerald, John D.   +2 more
core   +1 more source

Uncovering Archaeological Treasures at Saruq al‐Hadid, UAE: Insights From Ground Penetrating Radar and Magnetic Data

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT Saruq al‐Hadid, located at the edge of the Rub Al‐Khali desert near Dubai's southern border with Abu Dhabi, is among the region's richest archaeological sites. Renowned for its historical role in metallurgy, trade and human habitation, the site was occupied from the Umm an‐Nar period through the post–Iron Age. Despite its significance, much of
Moamen Ali   +9 more
wiley   +1 more source

MINERAL COMPOSITION OF ORE CLASTS OF THE NOVY SHEMUR MASSIVE SULFIDE DEPOSIT, NORTH URALS [PDF]

open access: yesМинералогия, 2018
The features of mineral composition are considered for clastic ores composing the main part of rich Cu-Zn ores of the Novy Shemur massive sulfide deposit, North Urals.
N.P. Safina   +3 more
doaj  

The composition of the fluid phase in inclusions in synthetic HPHT diamonds grown in system Fe–Ni–Ti–C

open access: yesScientific Reports, 2022
Diamonds grown by high pressure high temperature process (HPHT) are usually characterized by yellow color and high contents of nitrogen. Introduction of Ti decreases nitrogen content in diamond.
Valeri Sonin   +8 more
doaj   +1 more source

Isheyevo Meteorite: Genetic link between CH and CB chondrites? [PDF]

open access: yes, 2006
Based on the mineralogy, petrography, bulk chemical, oxygen, and nintrogen isotopic compositions and 40Ar-39Ar age, Isheyevo is genetically related to CH and CB carbonaceous chondrites and provides a link between these group of pristine ...
Brandstätter, F.   +7 more
core  

Injuries in deep time: interpreting competitive behaviours in extinct reptiles via palaeopathology

open access: yesBiological Reviews, EarlyView.
ABSTRACT For over a century, palaeopathology has been used as a tool for understanding evolution, disease in past communities and populations, and to interpret behaviour of extinct taxa. Physical traumas in particular have frequently been the justification for interpretations about aggressive and even competitive behaviours in extinct taxa.
Maximilian Scott   +3 more
wiley   +1 more source

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