Results 51 to 60 of about 146,299 (379)

Machine Learning in Petrology: State-of-the-Art and Future Perspectives

open access: yesJournal of Petrology
The present manuscript reports on the state-of-the-art and future perspectives of Machine Learning (ML) in petrology. To achieve this goal, it first introduces the basics of ML, including definitions, core concepts, and applications.
Maurizio Petrelli
semanticscholar   +1 more source

Zircon ages in granulite facies rocks: decoupling from geochemistry above 850 °C? [PDF]

open access: yes, 2018
Granulite facies rocks frequently show a large spread in their zircon ages, the interpretation of which raises questions: Has the isotopic system been disturbed? By what process(es) and conditions did the alteration occur?
A Boriani   +120 more
core   +1 more source

The Case for a Cooperative Studio Classroom: Teaching Petrology in a Different Way [PDF]

open access: yes, 2005
NOTE: This file size is large, 16.52 mb. This article describes one educator's attempts to modify his Petrology course, changing the lab-lecture format to one that emphasizes studio and cooperative learning.
Dexter Perkins
core   +1 more source

The Significance of Multiple Saturation Points in the Context of Polybaric Near-fractional Melting [PDF]

open access: yes, 2004
Experimental petrologists have successfully located basaltic liquid compositions parental to mid-ocean ridge basalt that are, within experimental resolution, multiply saturated with three-phase harzburgite or four-phase lherzolite assemblages on their ...
Asimow, Paul D., Longhi, John
core   +2 more sources

Constraining Magma Reservoir Conditions by Integrating Thermodynamic Petrological Models and Bulk Resistivity From Magnetotellurics

open access: yesGeochemistry, Geophysics, Geosystems, 2022
Magnetotelluric (MT) data image the bulk resistivity of the subsurface which can be used to infer magma reservoir conditions beneath volcanoes. The bulk resistivity of magma depends primarily on the melt volume fraction, temperature, and water content ...
Darcy Cordell   +3 more
doaj   +1 more source

Structure of the Multiphase Chalcolithic Tell Chiselet–Grădiștea Fundeanca (Romania) From SH‐Wave Full‐Waveform Inversion, Borehole Geophysics and Coring

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT The emergence and development of settlement mounds, also called tells, is of major interest for the analysis of socio‐economic transformations occurring in the lower Danube plain during the East European Chalcolithic period. In this context, the multiphase chronology and structural layout of tells are highly relevant indicators, but small ...
Manuel Zolchow   +11 more
wiley   +1 more source

Mineral chemistry of late Variscan gabbros from central Spain: constraints on crystallisation processes and nature of the parental magmas [PDF]

open access: yes, 2015
© 2016. Universidad Complutense de Madrid. The commercial rights of the printed and online versions of Journal of Iberian Geology are property of the Universidad Complutense de Madrid (UCM) and the Consejo Superior de Investigaciones CientÍficas (CSIC),
Jeffries, T   +3 more
core   +3 more sources

Wetlands as environments of early human occupation: A new classification for freshwater palaeowetlands

open access: yesThe Depositional Record, EarlyView.
A new classification for inland freshwater palaeowetlands to be used in the field or core laboratory by sedimentologists, providing examples from the Guadix Basin (southern Spain). Abstract Present wetlands have proven to be delicate, biodiverse ecosystems, that are natural sinks for CO2 and act as good indicators for climate changes.
S. Pla‐Pueyo   +1 more
wiley   +1 more source

Ultramafic xenoliths from the Bearpaw Mountains, Montana, USA: evidence for multiple metasomatic events in the lithospheric mantle beneath the Wyoming craton [PDF]

open access: yes, 2004
Ultramafic xenoliths in Eocene minettes of the Bearpaw Mountains volcanic field (Montana, USA), derived from the lower lithosphere of the Wyoming craton, can be divided based on textural criteria into tectonite and cumulate groups. The tectonites consist
Bodinier, J.L.   +8 more
core   +5 more sources

THE 10TH ANNIVERSARY ALLRUSSIA SCIENTIFIC CONFERENCE «GEODYNAMIC EVOLUTION OF THE LITHOSPHERE OF THE CENTRAL ASIAN OROGENIC BELT: FROM OCEAN TO CONTINENT» (IEC SB RAS, 17–20 OCTOBER, 2012)

open access: yesГеодинамика и тектонофизика, 2015
The article provides review about the 10th anniversary of All-Russia scientific conference «Geodynamic evolution of the lithosphere of the Central Asian Orogenic Belt: from ocean to continent», which was held on 17–20 October, 2012 at the Institute of ...
Dmitry P. Gladkochub   +2 more
doaj   +1 more source

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