Results 111 to 120 of about 23,609 (212)

Evaluating the Role of Titanomagnetite in Bubble Nucleation: Novel Applications of Low Temperature Magnetic Analysis and Textural Characterization of Rhyolite Pumice and Obsidian From Glass Mountain, California

Geochemistry, Geophysics, Geosystems
Nucleation of H2O vapor bubbles in magma requires surpassing a chemical supersaturation threshold via decompression. The threshold is minimized in the presence of a nucleation substrate (heterogeneous nucleation, 100 MPa).
Kelly N. McCartney, Julia E. Hammer, Thomas Shea, Stefanie Brachfeld, Thomas Giachetti   +4 more
doaj   +1 more source

Evaluating the Role of Titanomagnetite in Bubble Nucleation: Rock Magnetic Detection and Characterization of Nanolites and Ultra‐Nanolites in Rhyolite Pumice and Obsidian From Glass Mountain, California

Geochemistry, Geophysics, Geosystems
We document the presence, composition, and number density (TND) of titanomagnetite nanolites and ultra‐nanolites in aphyric rhyolitic pumice, obsidian, and vesicular obsidian from the 1060 CE Glass Mountain volcanic eruption of Medicine Lake Volcano ...
Stefanie Brachfeld, Kelly N. McCartney, Julia E. Hammer, Thomas Shea, Thomas Giachetti   +4 more
doaj   +1 more source

Asynchronous transfer of magmas and mineralizing fluids in a plutonic-subvolcanic-volcanic plumbing system. [PDF]

Sci Rep
Paoli G, Dini A, Vezzoni S, Ovtcharova M, Rocchi S.   +4 more
europepmc   +1 more source

Reliability of quartz-hosted melt inclusions and discrete rhyolite reservoirs revealed by H isotopes, trace elements, and volatiles. [PDF]

Sci Adv
Hickernell SM, Pamukçu AS, Monteleone BD.   +2 more
europepmc   +1 more source

Seismic shifts in the geochemical and microbial composition of a Yellowstone aquifer. [PDF]

PNAS Nexus
Boyd ES, Colman DR, Menchaca A, Spietz RL, Shoemaker A, Finn C, Mencin D, Andrade-Barahona E, Cox A, Kieft T, Bilek S, Hungerford J, Onstott TC.   +12 more
europepmc   +1 more source

Volcanological constraints of Archaean tectonics [PDF]

Volcanological and trace element geochemical data can be integrated to place some constraints upon the size, character and evolutionary history of Archean volcanic plumbing, and hence indirectly, Archean tectonics.
Ayres, L. D., Thurston, P. C.
core   +1 more source

Selective use of distant stone resources by the earliest Oldowan toolmakers. [PDF]

Sci Adv
Finestone EM, Plummer TW, Ditchfield PW, Reeves JS, Braun DR, Bartilol SK, Rotich NK, Bishop LC, Oliver JS, Kinyanjui RN, Petraglia MD, Breeze PS, Lemorini C, Caricola I, Obondo PO, Potts R.   +15 more
europepmc   +1 more source

Analysis of short-term temporal variations of ²²²Rn, other naturally occurring radionuclides, stable elements and environmental parameters in groundwater and surface drinking water in Norway. [PDF]

Front Public Health
Aarsand AS, Mrdakovic Popic J, Teien HC.
europepmc   +1 more source

Chemically Driven Nano-Elastic Heterogeneities Control Fragility in Volcanic Melts. [PDF]

Adv Sci (Weinh)
Cassetta M, Szewczyk D, Giuliani G, Dominijanni S, Vetere F, Iezzi G, Radica F, Bondar D, Di Fiore F, Pontesilli A, Karacasulu L, Daldosso N, Mizuno H, Di Genova D.   +13 more
europepmc   +1 more source

Unravel subseafloor hydrothermal leaching and magmatic degassing during chimney formation at Kolumbo volcano. [PDF]

Sci Rep
Hector S, Ahmad Q, Patten CGC, Chiaradia M, Nomikou P, Kilias S, Peillod A, Wagner S, Kolb J.   +8 more
europepmc   +1 more source