Results 21 to 30 of about 25,858 (276)

Glass in the submarine section of the HSDP2 drill core, Hilo, Hawaii [PDF]

open access: yes, 2004
The Hawaii Scientific Drilling Project recovered ~3 km of basalt by coring into the flank of Mauna Kea volcano at Hilo, Hawaii. Rocks recovered from deeper than ~1 km were deposited below sea level and contain considerable fresh glass. We report electron
Baker, Michael   +4 more
core   +1 more source

Activation experiment for concrete blocks using thermal neutrons

open access: yesEPJ Web of Conferences, 2017
Activation experiments for ordinary concrete, colemanite-peridotite concrete, B4C-loaded concrete, and limestone concrete are carried out using thermal neutrons.
Okuno Koichi, Tanaka Seiichiro
doaj   +1 more source

Petrology and geochemistry of a peridotite body in Central- Carpathian Paleogene sediments (Sedlice, eastern Slovakia)

open access: yesGeologica Carpathica, 2014
We studied representative samples from a peridotite body situated NE of Sedlice village within the Central- Carpathian Paleogene sediments in the Central Western Carpathians.
Koppa Matúš   +2 more
doaj   +1 more source

Evolution history of north Anarak, Central Iran ophiolitic olistoliths using petrographical and mineral chemistry studies [PDF]

open access: yesپترولوژی, 2021
Anarak ophiolite, belonging to Paleozoic, formed along with the tectonic evolution of the Paleo- Tethys Ocean, consisting of meta- peridotites of mantle and crust, cumulate rocks, massive gabbros, pillow lava, basic and ultrabasic dikes, rodingite and ...
Elahe Zarei   +2 more
doaj   +1 more source

Subarctic physicochemical weathering of serpentinized peridotite [PDF]

open access: yesEarth and Planetary Science Letters, 2017
Abstract Frost weathering is effective in arctic and subarctic climate zones where chemical reactions are limited by the reduced availability of liquid water and the prevailing low temperature. However, small scale mineral dissolution reactions are nevertheless important for the generation of porosity by allowing infiltration of surface water with ...
Jörn-Erik Hövelmann   +5 more
openaire   +7 more sources

Viscosity of anhydrous and hydrous peridotite melts

open access: yesChemical Geology, 2023
The melt viscosity (η) of anhydrous and hydrous peridotite was investigated using a multipronged approach combining micropenetration viscometry, conventional DSC, flash DSC and Brillouin spectroscopy. Raman spectroscopy measurements were used to verify the absence of crystallization and/or degassing during high-temperature measurements of these ...
Di Genova, Danilo   +11 more
openaire   +2 more sources

Mafic alkaline metasomatism in the lithosphere underneath East Serbia: evidence from the study of xenoliths and the host alkali basalts [PDF]

open access: yes, 2010
Effects of mafic alkaline metasomatism have been investigated by a combined study of the East Serbian mantle xenoliths and their host alkaline rocks.
Cvetkovic, V.   +4 more
core   +1 more source

MANTLE TERRANES OF THE SIBERIAN CRATON: THEIR INTERACTION WITH PLUME MELTS BASED ON THERMOBAROMETRY AND GEOCHEMISTRY OF MANTLE XENOCRYSTS

open access: yesГеодинамика и тектонофизика, 2019
We have studied variations in the structure and composition of minerals from the pipes of the Yakutian kimberlite province (YKP) in different mantle terranes of the Siberian craton.
I. V. Ashchepkov   +7 more
doaj   +1 more source

Widespread abiotic methane in chromitites [PDF]

open access: yes, 2018
Recurring discoveries of abiotic methane in gas seeps and springs in ophiolites and peridotite massifs worldwide raised the question of where, in which rocks, methane was generated.
Etiope, G.   +8 more
core   +1 more source

Home - About - Disclaimer - Privacy