Results 71 to 80 of about 1,332 (160)

Constituent mineral and minor element compositions of alkali ~ highly potassic mafic dykes intruded into Lützow-Holm Complex, East Antarctica, for consideration of their origin. [PDF]

open access: yes, 2016
第3回極域科学シンポジウム/第32回極域地学シンポジウム 11月30日(金) 国立極地研究所 ...
Miyamoto Tomoharu, 宮本 知治
core   +1 more source

Thermal Stability of F‐Rich Phlogopite and K‐Richterite During Partial Melting of Metasomatized Mantle Peridotite With Implications for Deep Earth Volatile Cycles

open access: yesJournal of Geophysical Research: Solid Earth, Volume 129, Issue 3, March 2024.
Abstract Phlogopite and K‐richterite constitute important carrier phases for H and F in Earth's lithosphere and mantle. The relative importance depends on their stabilities at high pressure and temperature, which in turn depends on bulk composition. Most previous experimental studies focused on the thermal stability of phlogopite and K‐richterite were ...
E. S. Steenstra   +5 more
wiley   +1 more source

Towards OWL-based Knowledge Representation in Petrology

open access: yes, 2011
This paper presents our work on development of OWL-driven systems for formal representation and reasoning about terminological knowledge and facts in petrology.
Kudryavtsev, Dmitry   +2 more
core  

Cenozoic granitoids in the Dinarides of southern Serbia: age of intrusion, isotope geochemistry, exhumation history and significance for the geodynamic evolution of the Balkan Peninsula [PDF]

open access: yes, 2018
Two age groups were determined for the Cenozoic granitoids in the Dinarides of southern Serbia by high-precision single grain U-Pb dating of thermally annealed and chemically abraded zircons: (1) Oligocene ages (Kopaonik, Drenje, Željin) ranging from 31 ...
Cvetković, Vladica   +6 more
core  

Mineralogical and Chemical Evolution of Lamproites in Woodson and Wilson Counties, Southeastern Kansas [PDF]

open access: yes, 2011
The major and trace element content of 123 lamproites and associated sedimentary rock samples from six cores of the Silver City Dome and two cores from the Rose Dome in southeastern Kansas were analyzed.
Berendsen, Pieter, Cullers, Robert L.
core   +2 more sources

Comparative Study of the Kimberlites of Bakwanga (North Group) and Bakwa-Kalonji (South Group) In East Kasai, Democratic Republic of Congo.

open access: yesAnalecta
The presence of kimberlites in the Democratic Republic of Congo has been known since buttgenbach reported a typical ‘yellow ground’ in Katanga as early as 1908, and prospecting work before and after 1914 had already identified twenty-four pipes in ...
Onya Ngila Arnold   +6 more
doaj   +1 more source

Palaeomagnetic chronology of the evaporitic sedimentation in the Neogene Fortuna Basin (SE Spain): early restriction preceding the 'Messinian Salinity Crisis' [PDF]

open access: yes, 1999
The magnetostratigraphic study of the evaporitic Río Chicamo section (240 m) in the Neogene Fortuna Basin (Murcia, southeast Spain) has identified the record of five magnetozones.
Dinarès-Turell, Jaume   +3 more
core   +1 more source

First mid-Neoproterozoic paleomagnetic results from the Tarim Basin (NW China) and their geodynamic implications

open access: yes, 2004
In order to improve the understanding of the configuration and breakup history of the Rodinia supercontinent, a paleomagnetic study has been carried out on the 807 ± 12 Ma Aksu dyke swarm (ADS) in Aksu area, northwestern Tarim Block (NW China).
Chen, Yan   +3 more
core   +4 more sources

Experimental determination of Pb partitioning between sulfide melt and basalt melt as a function of P, T and X [PDF]

open access: yes, 2016
© The Author(s), 2016. This is the author's version of the work and is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Geochimica et Cosmochimica Acta 185 (2016): 9-20, doi:10.1016/j.gca ...
Gaetani, Glenn A., Hart, Stanley R.
core   +1 more source

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