Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Aaron J. Pietruszka"'
Publikováno v:
Geology.
Temporal variations in lava chemistry at active submarine volcanoes are difficult to decipher due to the challenges of dating their eruptions. Here, we use high-precision measurements of 226Ra-230Th disequilibria in basalts from Kamaʻehuakanaloa (fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10b1bdf79738c23e085409c7a5537387
https://doi.org/10.1130/g51350.1
https://doi.org/10.1130/g51350.1
Publikováno v:
Bulletin of Volcanology. 83
The 2018 rift eruption of Kīlauea Volcano presents a superb opportunity to decipher the underlying role of magmatic processes on the behavior and hazards of basaltic volcanoes. Here, we examine the petrogenetic history of the most MgO-rich lavas (~
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::270b2a75a0ec72154f2d9fc1f20b54b2
https://doi.org/10.1007/s00445-021-01470-3
https://doi.org/10.1007/s00445-021-01470-3
Publikováno v:
Geochimica et Cosmochimica Acta. 258:120-137
A geochemical time-series analysis of lavas from frequently active basaltic volcanoes has the potential to reveal the enigmatic mantle controls on volcanic behavior and hazards. In May 1924, the century-long lava lake within Halemaʻumaʻu pit crater
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::820620938c4d8a49d11e3e67619a4424
https://doi.org/10.1016/j.gca.2019.05.029
https://doi.org/10.1016/j.gca.2019.05.029
Autor:
Erik H. Hauri, J. P. Marske, Jordan Tucker, Frank A. Trusdell, Michael O. Garcia, Aaron J. Pietruszka
Publikováno v:
Geochimica et Cosmochimica Acta. 254:156-172
The deep mantle carbon content and flux are fundamental quantities in understanding global volatile cycles and distributions. Here, we present CO2 concentrations measured in 407 olivine-hosted melt inclusions from Hualalai, Kilauea, Koolau, Loihi, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb3b302c28ddbd5c1469a8119dc5677a
https://doi.org/10.1016/j.gca.2019.04.001
https://doi.org/10.1016/j.gca.2019.04.001
Publikováno v:
Journal of Petrology. 59:2311-2352
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5690409bda22eb105ebe9f43ef157998
https://doi.org/10.1093/petrology/egy098
https://doi.org/10.1093/petrology/egy098
Publikováno v:
Chemical Geology. 581:120391
Kīlauea's Pu‘u ‘Ō‘ō eruption was the longest lived (35+ years), and most voluminous (~4.4 km3) and intensely monitored historical eruption of this Hawaiian volcano. A synthesis and update are presented here on the remarkable petrologic and g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1092f39132a7f51649593312735a745a
https://doi.org/10.1016/j.chemgeo.2021.120391
https://doi.org/10.1016/j.chemgeo.2021.120391
Autor:
Leonid A. Neymark, Aaron J. Pietruszka
Publikováno v:
Journal of Analytical Atomic Spectrometry. 32:1135-1154
An analytical method for the in situ measurement of “common” Pb isotope ratios in silicate glasses and minerals using a 193 nm excimer laser ablation (LA) system with a double-focusing single-collector (SC)-ICPMS is presented and evaluated as a p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::349830e2c5c2302d7c4541dc6e8e86e7
https://doi.org/10.1039/c7ja00005g
https://doi.org/10.1039/c7ja00005g
Publikováno v:
Geology. 45:79-82
Reliable estimates for lava accumulation rates are essential for interpreting magma fluxes to intraplate volcanoes and inferring the thermal and compositional structure of mantle plumes. Kīlauea Volcano’s (Hawai‘i) 1.7-km-deep SOH-1 scientific d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8351f4b6503bb7a85a59e945802ac98a
https://doi.org/10.1130/g38419.1
https://doi.org/10.1130/g38419.1
Autor:
Barry B. Hanan, Paul R. Craddock, Jasper G. Konter, Aaron J. Pietruszka, Nicolas Dauphas, Matthew G. Jackson, V. Finlayson
Publikováno v:
Earth and Planetary Science Letters. 450:221-232
Several magmatic processes contribute to the Fe isotope composition of igneous rocks. Most basalts fall within a limited range of δ56Fe ( + 0.10 ± 0.05 ‰ ), although more differentiated lavas trend towards slightly elevated values (up to + 0.3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c030ececfb8180ea776e86c3344b1d00
https://doi.org/10.1016/j.epsl.2016.06.029
https://doi.org/10.1016/j.epsl.2016.06.029
Publikováno v:
Journal of Petrology. 56:1173-1197
The South Kauai Swell (SKS) volcano was sampled during four JASON dives and three dredge hauls recovering rocks that range from fresh pillow lavas to altered volcanic breccias. Two geo- chemical groups were identified: shield-stage tholeiites (5� 4
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e71aea9009c720bd981cdb4331c30c61
https://doi.org/10.1093/petrology/egv033
https://doi.org/10.1093/petrology/egv033