Results 261 to 270 of about 75,336 (360)

Metamorphism in a wet Martian middle crust. [PDF]

open access: yesProc Natl Acad Sci U S A
Palin R, Wade J, Dyck B.
europepmc   +1 more source

Radioisotopic age constraints of the Cambrian Ritland impact structure, Norway

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Secondary ion mass spectrometry U‐Pb geochronology has been performed on zircon grains separated from impact melt rock from the 2.7 km‐in‐diameter Ritland impact structure, southwestern Norway. Scanning electron microscope‐based imaging techniques, including electron backscatter diffraction analysis, reveal various zircon grain microtextures ...
William R. Hyde   +6 more
wiley   +1 more source

The nature and formation of silica minerals in eucrite meteorites: Insight into the protoplanetary magma crystallization

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Silica polymorphs in meteorites provide critical constraints on crystallization processes associated with thermal activity in the early solar system. A detailed investigation of silica polymorphs in eucrites (the largest group of achondrites) using cathodoluminescence imaging and laser‐Raman spectroscopy revealed significant variations in the ...
Rei Kanemaru   +14 more
wiley   +1 more source

Late-orogenic retrograde zircon growth. [PDF]

open access: yesContrib Mineral Petrol
Dyer SC   +3 more
europepmc   +1 more source

Anxious Projections: Mass Hysteria and the Problem of Interpretation

open access: yesMedical Anthropology Quarterly, EarlyView.
Abstract Stories of “mass hysteria” among teenage girls have often graced the headlines of Nepal's local and national newspapers, creating a public spectacle of a strange and mysterious form of affliction. Treatments include both shamanic rituals and psychosocial interventions, a new therapeutic modality that has gained prominence over the past two ...
Aidan Seale‐Feldman
wiley   +1 more source

Subsurface Microbial Colonization at Mineral-Filled Veins in 2-Billion-Year-Old Mafic Rock from the Bushveld Igneous Complex, South Africa. [PDF]

open access: yesMicrob Ecol
Suzuki Y   +13 more
europepmc   +1 more source

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