Results 101 to 110 of about 26,385 (251)

Plagioclase-alkali feldspar geothermometry revisited

open access: yes, 1977
SUMMARY, The plagioclase-alkali-feldspar geothermometer formulated by Stormer 0975) does not take into account the effect of small amounts of calcium in the alkali feldspar.
Marjorie Powell, Roger Powell
core   +1 more source

Evidence for the continental origin of Pliocene deposits in the central Baja California peninsula, Mexico, and implications for controls on biodiversity

open access: yesSedimentology, EarlyView.
ABSTRACT Previous studies have documented genetic divergence within the last few million years between northern and southern populations of terrestrial plants and animals along the Baja California peninsula, with many studies hypothesising that the divergence is due to an ancient seaway that crossed the central peninsula and created a physical barrier ...
Kevin K. Gardner   +8 more
wiley   +1 more source

(Table 6) Representative plagioclase compositions of plagioclase-phyric chilled margins and microdikes of ODP Hole 140-504B

open access: yes, 1995
(Table 6) Representative plagioclase compositions of plagioclase-phyric chilled margins and microdikes of ODP Hole 140 ...
Andrew W McNeill (6973100)   +1 more
core   +1 more source

Coupled plagioclase dissolution and K‐feldspar overgrowth precipitation preserve anomalously high permeability in deeply buried sandstones

open access: yesSedimentology, EarlyView.
ABSTRACT This study investigated the formation mechanism responsible for anomalously high permeability (AHP) observed in the Eocene sandstones at depths from 3824 to 3832 m in the Huizhou Sag, Pearl River Mouth Basin, China, using helium porosity and permeability measurements, thin section, scanning electron microscopy, electron probe X‐ray ...
Changgui Xu   +12 more
wiley   +1 more source

plagioclase phase diagram

open access: yes, 2016
Proposed equilibrium phase diagram for plagioclase as low ...
Carpenter, M. A.
core  

(Tabel S5b) Plagioclase-hosted melt inclusions, host plagioclase composition adjacent to inclusion, and thermobarometry of melt inclusion - host mineral pairs

open access: yes, 2018
(Tabel S5b) Plagioclase-hosted melt inclusions, host plagioclase composition adjacent to inclusion, and thermobarometry of melt inclusion - host mineral ...
Melanie Siegburg (6968786)   +7 more
core   +1 more source

(Table 1) Modal composition of olivine-plagioclase phyric and plagioclase phyric basalts at DSDP Leg 67 Holes

open access: yes, 1982
(Table 1) Modal composition of olivine-plagioclase phyric and plagioclase phyric basalts at DSDP Leg 67 ...
Yuri I Dmitriev (6887309)   +1 more
core   +1 more source

Thermoluminescence Properties of Plagioclase Mineral and Modelling of TL Glow Curves with Artificial Neural Networks

open access: yesApplied Sciences
The thermoluminescence (TL) method is one of the most widely used techniques in various studies, including dosimetric applications, dating of archaeological and geological materials, luminescence spectroscopy of certain insulating or semiconducting ...
Mehmet Yüksel, Emre Ünsal
doaj   +1 more source

Plagioclase-Garnet-Epidote Equilibria in Hornblende-Plagioclase Bearing Rocks from the Esplanade Range, British Columbia

open access: yes, 1972
Hornblende-plagioclase bearing rocks occur as layers and lenses within metasedimentary rocks of the Esplanade Range, British Columbia (51°31′ N, 117°27′ W).
C. D. S. DeVries, Edward D. Ghent
core   +1 more source

A Machine‐Learning Surrogate for Differentiable Phase Equilibrium Modeling of Mantle Rocks on a Planetary Scale

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Modeling processes within Earth's and other planetary bodies' mantle requires constraints from phase equilibrium to infer how changes in phase abundance and composition affect physical properties and geochemical processes. When applying such thermodynamic models on a planetary scale, performance becomes especially crucial.
Philip Hartmeier, Pierre Lanari
wiley   +1 more source

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